WO2017114974A2

WO2017114974A2 - Wash-durable, fluid absorbent substrate with antimicrobial properties and/or improved washability, and hygiene product such as reusable sanitary napkin

Info

Publication number: WO2017114974A2
Application number: PCT/EP2017/050035
Authority: WO
Inventors: Sanjeev SWAMY; Ashok KURIEN
Original assignee: Green Impact Holding Ag
Priority date: 2015-12-30
Filing date: 2017-01-02
Publication date: 2017-07-06
Also published as: MA41892A; CO2018006900A2; AU2017204681B2; WO2017114585A1; CN108884626A; PE20181471A1; WO2017114974A3; EA202191700A3; CO2018006925A2; PE20181469A1; EP3187654B1; CN109310556B; ES2875969T3; PH12018501400A1; MY190387A; EA202191700A2; IL260332A; PE20181470A1; CL2018001740A1; WO2017114971A2

Abstract

The present invention is directed to a substrate, in particular textile material to which one or more antimicrobial and/or hydrophilic and/or stain release agents are adhered. The agent(s) is/are adhered to the substrate in such a manner that they are not released from the textile even if the textile is wetted or washed, so that the textile is reusable. Washability and/or usability of the textile are improved where one or more hydrophilic and/or stain release agents are adhered to the textile. The substrate can be used, e.g., in a reusable sanitary napkin or other hygiene product. The structure of the hygiene product is disclosed, together with a process of attaching the different layers of the hygiene product together by ultrasonic welding. The invention further relates to a method of finishing a substrate by applying and binding antimicrobial and/or hydrophilic and/or stain release agents to the substrate so that the agents are essentially irreversibly adhered to the finished substrate.

Description

Wash-durable, fluid absorbent substrate with antimicrobial properties and/or improved washability, and hygiene product such as reusable sanitary napkin

FIELD OF THE INVENTION

BACKGROUND OF THE INVENTION Disposable hygiene products in particular for preventing the leakage of fluids, such as a sanitary napkin panty or underwear liner, nappy, diaper, diaper liner, adult diaper, bed pad, or nursing pad are well-known and often used. However, they produce great amounts of waste. Furthermore, e.g. the price of disposable sanitary napkins at a minimum of $ 3.50/month is too high in particular for women in developing countries. In 2016, two thirds of Indian women (about 400 million) could not afford them. Instead of sanitary napkins, they oftentimes use pieces of old cotton clothes which are folded into a pad. However, use of such alternative sanitary care measures make women susceptible to yeast and fungal infections, and they also run a higher risk of cervical cancer, reproductive tract and urinary tract diseases. Textiles used in hospitals or kitchens have a high exposure to staining materials like blood or food. It is important that they are not contaminated by microbes when they are worn or otherwise used. Therefore, these textiles are typically laundered in long wash cycles using large amounts of resources such as energy, water, and detergent. Water or oil repellent textile finishes can help to avoid staining, but some of these textiles, like kitchen towels or bed pads need to have good fluid absorbing capabilities, and therefor they should not be water or oil repellent.

It is desirable to overcome the waste problem and further to provide products or textiles, in particular hygiene products, which are easily washable and/or prevent microbiological contamination.

Reusable sanitary napkins or sanitary towels which have some disinfecting or antibacterial properties are known in the art. For example, it is known to make sanitary napkins antibacterial by using tea (CN 201283041 Y), tetraammonium salt (CN 106559 A), or hexachlorophene (US 3,732,867 A). EP 2 829 256 Ai relates to a sanitary napkin comprising a contact layer (to the skin) being permeable to fluid passage, a pad for absorbing fluids, and an outer layer being impermeable to fluid passage. The pad comprises a percentage of antimicrobial fibers made from polymer material with silver particles added. However, all these solutions have disadvantages in that either the antimicrobial efficacy is low and/or the textiles are expensive to manufacture because of the ingredients used and/ or because the ingredients are applied to the fiber or the yarn, not to the fabric. Furthermore, none of the prior art reusable napkins addresses the problem of staining in an efficient manner, so that in general a full wash cycle in a laundering machine is required before they can be reused.

From US 3,489,149, A, reusable sanitary napkins built into underwear are known, which use stain resistant and washable textiles. However, the stain resistant textile is said to be essentially hydrophobic, and to have no great ability to retain moisture, which is highly disadvantageous because a sanitary napkin should absorb fluids as quickly as possible, and be able to retain as much fluid as possible. Reusable water- absorbing pads e.g. for diapers are known from US 2001/0034510 Ai. However, for washing them in an efficient manner, an aqueous electrolytic solution (water and salts, e.g. magnesium hydroxide, sodium hypochlorite, and detergent) needs to be used. Furthermore, none of these products exhibits antimicrobial activity. Textiles used in hospitals or kitchens have a high exposure to staining materials like blood or food. It is important that they are not contaminated by microbes when they are worn or otherwise used. Therefore, these textiles are typically laundered in long wash cycles using large amounts of resources such as energy, water, and detergent. Water or oil repellent textile finishes can help to avoid staining, but some of these textiles, like kitchen towels or bed pads need to have good fluid absorbing capabilities, and therefor they should not be water or oil repellent.

For all of the above-mentioned applications, it would be desirable to have wash-durable substrates with antimicrobial properties, which are easily washable and/or absorb water and oily substances well.

SUMMARY OF THE INVENTION

It is an object of the invention to provide textile materials that overcome some or all problems of the above-mentioned prior art documents. In particular, one object of the invention is to provide substrates exhibiting antibacterial properties even after numerous washes. The substrate should prohibit growth of bacteria, smells, odors etc. as completely as possible. It is another object that the substrates are easily washable. It is a further object of the invention that the substrates have fluid absorbing properties, both of water and oil. It is another object that the substrates exhibit properties rendering them suitable as hygiene products, e.g. as sanitary napkins. Some or all of these objects are solved by the subject matter of the independent claims. Preferred embodiments are subject of the dependent claims.

In accordance with the present invention, a substrate is provided to which one or more chemical agents are adhered, which chemical agents convey antimicrobial and/or hydrophilic and/or stain release properties to the substrate, in a wash-durable manner. The substrate can be used for hygiene products, e.g. for a sanitary napkin. The invention further provides finishing methods for manufacturing the substrates, by applying liquor application processes such as padding and exhaust processes, followed by heat treatment. Finally, the invention provides a novel sonotrode and a method for ultrasonic welding of hygiene products. Unless otherwise stated, all percentages hereinafter refer to the ratio of the uptaken weight of antimicrobial agent on a substrate and the weight of that substrate without the uptaken antimicrobial agent. The term "on weight fabric" refers to this ratio. Abbreviations are "owf" or "o.w.f. The term "gpl" means "grams per liter" and is typically used to define the concentration of a substance in a liquor.

In the context of the present invention the terms "textile" and "textile material" relate to a flexible material consisting of fibres, or a network of natural and/or artificial fibres, such as a yarn or a fabric. The material may be in its natural or processed or even finished form.

The term "starting (textile) material" or "starting substrate" refers to a (textile) material which has not yet been treated by the finishing processes described in the present disclosure.

The term "antimicrobial" as used in the context of the present invention relates to the ability to kill at least some types of microorganisms, or to inhibit the growth or reproduction of at least some types of microorganisms. Said term relates to any compound, agent, product or process that is harmful to one or more "microorganism" as used in the context of the present invention. Preferably, the one or more "microorganisms" get killed by the "antimicrobial" product or process. By "antimicrobial agent" is meant any substance or combination of substances that kills or prevents the growth of a microorganism. The terms "microorganism" and "microbe", which are used interchangeably in the context of the present invention, are defined to comprise any organism too small to be seen by the unaided eye, such as, especially, single-celled organisms. In particular, the terms "microorganism" and "microbe" cover prokaryotes including bacteria and archaea, eukaryotes including protists, animals like dust mites or spider mites, fungi, and plants like green algae, as well as viruses.

The term "hydrophilic" essentially relates to the attraction of water. In the context of the present invention, the term "hydrophilic" commonly implies attachment or adhering of aqueous liquids at the surface and in the interior of a substrate. Thus, the term "hydrophilic" or "hydrophilic properties" as used herein includes the attachment or adhering of aqueous liquids at or near the surface of a substrate and/or in the interior of a substrate. A hydrophilic substrate is typically not water-repellent, and to the contrary absorbs water quickly. It typically also exhibits good wicking properties. A "hydrophilic agent" is an agent which when applied to a substrate like a textile material, noticeably improves the hydrophilic properties of the substrate.

The term "stain release" relates to easy removal of stains. In the context of the present invention, the term "stain release properties" of a textile commonly refers to its ability of both adsorbing in particular oily stains on the outside surface or on internal surfaces within a substrate and easily removing stains from these surfaces, for instance during laundry. The term "stain release properties" is not to be confused with the term "stain repellent properties" of a textile. While textiles with good stain repellent properties do not adsorb or absorb oily stains in the first place, textiles with good stain release properties may adsorb them but subsequently release them easily. A "stain release agent" is an agent which, when applied to a substrate like a textile material, noticeably improves the stain release properties of that substrate. Whenever a temperature is mentioned in the present specification, the temperature refers to a temperature applied at normal pressure (101.325 Pa). If in an implementation of the invention higher or lower pressure is applied, the temperatures are understood to be adapted accordingly. A 1^st embodiment of the invention is a substrate, in particular textile material, to which one or more stain release agents and/or one or more hydrophilic agents and/or one or more antimicrobial agents are adhered.

A 2^nd embodiment of the invention is a substrate, in particular textile material, to which one or more stain release agents and one or more hydrophilic agents and preferably one or more antimicrobial agents are adhered

A 3^rd embodiment of the invention is a substrate, in particular textile material, to which one or more stain release agents and one or more antimicrobial agents and preferably one or more hydrophilic agents are adhered.

A 4^th embodiment of the invention is a substrate, in particular textile material, to which one or more antimicrobial agents and one or more hydrophilic agents and preferably one or more stain release agents are adhered. Antimicrobial agents

Types According to a 5^th embodiment, in the substrate of any of the proceeding embodiments, the one or more antimicrobial agents comprise

at least one, preferably at least two, more preferably at least three, even more preferably at least four, or all five selected from the group consisting of a quaternary ammonium organosilane compound, metal, an azole-based compound, polyglucosamine, and polyhexamethylene biguanide; or

at least one, preferably at least two, more preferably at least three, and most preferably all four selected from the group consisting of metal, an azole-based compound, polyglucosamine, and polyhexamethylene biguanide; or

at least one, preferably at least two, more preferably all three selected from the group consisting of metal, an azole-based compound, and a quaternary ammonium organosilane compound; or

at least metal and at least one selected from the group consisting of an azole-based compound, a quaternary ammonium organosilane compound, polyglucosamine, and polyhexamethylene biguanide; or at least an azole-based compound and at least one selected from the group consisting of a quaternary ammonium organosilane compound, polyglucosamine, and polyhexamethylene biguanide; or at least a quaternary ammonium organosilane compound and at least one selected from the group consisting of polyglucosamine and polyhexamethylene biguanide; or at least polyglucosamine and polyhexamethylene biguanide. According to a 6^th embodiment, in the substrate of any one of embodiments 1 to 4, the one or more antimicrobial agents comprise

metal and at least one, or at least two, or all three selected from the group consisting of polyhexamethylene biguanide, polyglucosamine, and an azole-based compound; or an azole-based compound and at least one, or at least two, or all three selected from the group consisting of polyhexamethylene biguanide, polyglucosamine, and metal; or

polyhexamethylene biguanide and at least one, or at least two, or all three selected from the group consisting of metal, polyglucosamine, and an azole-based compound; or

polyglucosamine and at least one, or at least two, or all three selected from the group consisting of silver cations, polyhexamethylene biguanide, and an azole-based compound; or

metal and at least one, or at least two, or at least three, or all four selected from the group consisting of polyhexamethylene biguanide, polyglucosamine, quaternary ammonium organosilane and an azole- based compound; or

an azole-based compound and at least one, or at least two, or at least three, or all four selected from the group consisting of polyhexamethylene biguanide, polyglucosamine, quaternary ammonium organosilane and metal; or

polyhexamethylene biguanide and at least one, or at least two, or at least three, or all four selected from the group consisting of metal, polyglucosamine, quaternary ammonium organosilane and an azole- based compound; or

polyglucosamine and at least one, or at least two, or at least three, or all four selected from the group consisting of silver cations, polyhexamethylene biguanide, quaternary ammonium organosilane and an azole-based compound; or

quaternary ammonium organosilane and at least one, or at least two, or at least three, or all four selected from the group consisting of silver cations, polyhexamethylene biguanide, polyglucosamine and an azole- based compound; or

quaternary ammonium organosilane and at least one, preferably both selected from the group consisting of metal and an azole-based compound; or

metal and at least one, preferably both selected from the group consisting of a quaternary ammonium organosilane compound and an azole-based compound; or an azole-based compound and at least one, preferably both selected from the group consisting of quaternary ammonium organosilane and metal.

According to a 7^th embodiment, in the substrate of any one of the embodiments 5 to 7, the metal is copper, zinc, or preferably silver, more preferably silver cations.

According to an 8^th embodiment, in the substrate of any one of the embodiments 5 or 6, the azole-based compound is carbendazim, thiabendazole, or a triazole-based compound.

According to a 9^th embodiment, in the substrate of embodiment 8, the triazole-based compound is propiconazole.

According to a 10^th embodiment, in the substrate of any one of embodiments 1 to 9, the one or more antimicrobial agents are not in the form of nanoparticles.

According to an 11^th embodiment, in the substrate of any one of embodiments 1 to 10, the one or more antimicrobial agents have a particle size, in all dimensions (length, width, height), of at least 250 nanometers, preferably at least 500 nanometers, more preferably at least 750 nanometers, and most preferably at least 1,000 nanometers.

According to a 12^th embodiment, in the substrate of any one of embodiments 1 to 11, the one or more antimicrobial agents are nonionic or cationic.

According to a 13^th embodiment, in the substrate of any one of embodiments 1 to 12, the one or more antimicrobial agents are bound to the substrate either directly, in particular if the agent is a quaternary ammonium organosilane compound, polyglucosamine, or polyhexamethylene biguanide, or by means of an inorganic or organic matrix directly bound to the substrate, in particular if the agent is metal, or via cross linking, in particular if the agent is an azole-based compound.

According to a 14^th embodiment, in the substrate of any one of embodiments 1 to 13, one or more of the one or more antimicrobial agents are bound to the substrate without the cyclodextrin and/or an inclusion complex, in particular without an inclusion complex of fiber-reactive cyclodextrin derivatives and antimicrobial agents. Concentrations According to a 15^th embodiment, in the substrate of any one of the preceding embodiments, the total amount of the one or more antimicrobial agents adhered to the substrate is at most 4.0%, preferably at most 3.0%, more preferably at most 2.5%, and most preferably at most about 2.0% on weight fabric of the substrate. According to a 16^th embodiment, in the substrate of any one of the preceding embodiments, the total amount of the one or more antimicrobial agents adhered to the substrate is at least 0.1%, preferably at least 0.2%, more preferably at least 0.3%, and most preferably at least 0.4% on weight fabric of the substrate. According to a 17^th embodiment, in the substrate of any one of embodiments 5 to 16, the polyhexamethylene biguanide is adhered to the substrate in an amount of at most 1.5%, preferably at most 1%, more preferably at most 0.8%, particularly at most 0.6%, and most preferably at most about 0.4% on weight fabric of the substrate. According to an 18^th embodiment in the substrate of any one of embodiments 5 to 17, the polyhexamethylene biguanide is adhered to the substrate in an amount of at least 0.1%, preferably at least 0.2%, more preferably at least 0.3%, and most preferably at least about 0.4% on weight fabric of the substrate. According to a 19^th embodiment, in substrate of any one of embodiments 6 to 18, the metal is adhered to the substrate in an amount of at most 0.1%, preferably at most 0.05%, more preferably at most 0.03%, particularly at most 0.02% and most preferably at most about 0.085% on weight fabric of the substrate. According to a 20^th embodiment, in the substrate of any one of embodiments 5 to 19, the metal is adhered to the substrate in an amount of at least 0.0002%, preferably at least 0.0005%, more preferably at least 0.0010%, and most preferably at least about 0.0017% on weight fabric of the substrate. According to a 21^st embodiment, in the substrate of any one of embodiments 5 to 20, the azole-based compound is adhered to the substrate in an amount of at most 2.5%, preferably at most 2.0%, more preferably at most 1.75%, and most preferably at most about 1.25% on weight fabric of the substrate.

According to a 22^nd embodiment, in the substrate of any one of embodiments 5 to 21, the azole-based compound is adhered to the substrate in an amount of at least 0.02%, preferably at least 0.05%, more preferably at least 0.10%, particularly at least 0.15%, and most preferably at least 0.25% on weight fabric of the substrate.

According to a 23^rd embodiment, in the substrate of any one of embodiments 5 to 22, the quaternary ammonium organosilane compound is adhered to the substrate in an amount of at most 2%, preferably at most 1.5%, more preferably at most 1.3%, in particular at most 1%, and most preferably at most about 0.72% on weight fabric of the textile material. According to a 24^th embodiment, in the substrate of any one of embodiments 5 to 23, the quaternary ammonium organosilane compound is adhered to the substrate in an amount of at least 0.03%, preferably at least 0.05%, more preferably at least 0.10%, and most preferably at least about 0.14% on weight fabric of the substrate. According to a 25^th embodiment, in the substrate of any one of embodiments 5 to 24, the polyglucosamine is adhered to the substrate in an amount of at most 1.5%, more preferably at most 1.0%, particularly at most 0.6%, most preferably at most about 0.3% on weight fabric of the substrate. According to a 26^th embodiment, in the substrate of any one of embodiments 5 to 25, the polyglucosamine is adhered to the substrate in an amount of at least 0.05%, preferably at least 0.10%, more preferably at least 0.15%, particularly at least 0.20%, and most preferably at least about 0.3% on weight fabric of the substrate.

Efficiency

According to a 27^th embodiment, in the substrate of any one of the preceding embodiments, the one or more antimicrobial agents adhered to the substrate increase the reduction value and/or the substrate exhibits a reduction value of Escherichia coli ATCC 25922 and/or Staphylococcus aureus ATCC 6538 and/or Pseudomonas aeroginosa ATCC 15442 and/or Salmonella enterica ATCC 10708 and/or Candida albicans ATCC 10231 and/or Aspergillus niger 16404 measured in accordance with AATCC test method 100-2012 and/or ASTM E2149-10 by/of at least 90% (1 log), preferably at least 99% (2 log), more preferably at least 99.9% (3 log), and most preferably at least 99.99% (4 log), within 1 hour of contact time, preferably within 15 minutes of contact time and/or of at least 99% (2 log), preferably at least 99.9% (3 log), more preferably at least 99.99% (4 log), particularly at least 99.999 (5 log), and most preferably at least 99.9999% (6 log) within 24 hours of contact time.

Hydrophilic agents/stain release agents

Types According to a 28^th embodiment, in the substrate of any one of the preceding embodiments, the one or more hydrophilic agents adhered to the substrate comprise at least one selected from the group consisting of carboxylic acid esters, polyester ether copolymers, starch based emulsions, fatty alcohol ethoxylates, and organosilane terpolymers, preferably fatty alcohol ethoxylates or organosilane terpolymers, most preferably organosilane terpolymers.

According to a 29^th embodiment, in the substrate of any one of the preceding embodiments, the one or more stain release agents adhered to the substrate comprise at least one selected from the group consisting of fatty alcohol ethoxylates, and organosilane terpolymers, preferably organosilane terpolymers.

According to a 30^th embodiment, in the substrate of any one of the preceding embodiments, one or more or all of the hydrophilic agents is/are (a) stain release agent(s).

According to a 31^st embodiment, in the substrate of any one of the preceding embodiments, one or more or all of the stain release agents is/are (a) hydrophilic agent(s). According to a 31a* embodiment, in the substrate of any one of the preceding embodiments, one or more or all of the hydrophilic agents are different from the antimicrobial agent(s).

According to a 3ib^th embodiment, in substrate of any one of the preceding embodiments, one or more or all of the stain release agents are different from the antimicrobial agent(s).

Concentrations

According to a 32^nd embodiment, in the substrate of any one of the preceding embodiments, the hydrophilic and/or stain release agents are adhered to the substrate in an amount of together at most 7%, preferably at most 5%, more preferably at most 4%, even more preferably at most 3%, in particular at most 2.5%, and most preferably at most about 2% on weight fabric of the substrate.

According to a 33^rd embodiment, in the substrate of the preceding embodiment, the hydrophilic and/or stain release agents are adhered to the substrate in an amount of together at least 0.05%, preferably at least 0.1%, more preferably at least 0.2%, particularly at least 0.3%, and most preferably at least about 0.4% on weight fabric of the substrate.

According to a 34^th embodiment, in the substrate of any one of the embodiments 28 or 29, or any one of embodiments 30 to 33 when dependent from any one of embodiments 28 or 29, the organosilane terpolymers are adhered to the substrate in an amount of at least 0.1%, preferably at least 0.2%, more preferably at least 0.4%, particularly at least 0.7%, and most preferably at least about 1% on weight fabric of the substrate. According to a 35^th embodiment, in the substrate of any one of the embodiments 28 or 29, or any one of embodiments 30 to 34 when dependent from any one of embodiments 28 or 29, the fatty alcohol ethoxylates are adhered to the substrate in an amount of at most 5%, preferably at most 4%, more preferably at most 3%, even more preferably at most 2%, and most preferably at most about 1.4% on weight fabric of the substrate.

Efficiency According to a 36^th embodiment, in the substrate of any one of the preceding embodiments, the one or more hydrophilic agents adhered to the substrate reduce the water absorbency time by at least 20%, preferably at least 40%, more preferably at least 60%, and most preferably at least 80%, preferably when measured in accordance with AATCC test method 79-2014 (Option A).

According to a 37^th embodiment, in the substrate of any one of the preceding embodiments, exhibiting a water absorbency time of at most 3 seconds, preferably at most 2 seconds, more preferably at most 1 second, and most preferably at most 0.5 seconds, preferably when measured in accordance with AATCC test method 79-2014 (Option A).

According to a 38^th embodiment, in the substrate of any one of the preceding embodiments, the one or more hydrophilic agents adhered to the substrate do not increase the water repellency of the substrate.

According to a 39^th embodiment, in the substrate of any one of the preceding embodiments, exhibiting a water repellency rating of at most 50, preferably o, measured in accordance with AATCC test method 22-2014.

According to a 40^th embodiment, in the substrate of any one of the preceding embodiments, the one or more hydrophilic agents adhered to the substrate increase the vertical wicking characteristics by at least a 25%, preferably at least 50%, and most preferably at least 100%, when tested according to AATCC test method 197-2013.

According to a 41^st embodiment, the substrate of any one of the preceding embodiments exhibits a vertical wicking rate of at least 0.15 mm/sec, preferably at least 0.2 mm/sec, more preferably at least 0.25 mm/sec, and most preferably at least 0.3 mm/sec, when tested according to AATCC test method 197-2013.

According to a 42^nd embodiment, in the substrate of any one of the preceding embodiments, the one or more hydrophilic agents adhered to the substrate increase the horizontal wicking characteristics by at least 20%, preferably at least 40%, more preferably at least 60% and most preferably at least 100% when tested according to AATCC test method 198-2013. According to a 43^rd embodiment, the substrate of any one of the preceding embodiments exhibits a horizontal wicking rate of at least 10 mm²/sec, preferably at least 15 mm²/sec, and most preferably at least 20 mm²/sec, when tested according to AATCC test method 197-2013.

According to a 44^th embodiment, in the substrate of any one of the preceding embodiments, the one or more stain release agents adhered to the substrate increase the stain release rating of the substrate by at least 1 grade, more preferably by at least 2 grades, particularly at least 3 grades, and most preferably 4 grades, when tested according to AATCC test method 130-2010.

According to a 45^th embodiment, the substrate of any one of the preceding embodiments has a stain release rating, measured in accordance with AATCC test method 130-2010, of at least grade 3, preferably at least grade 4, and most preferably grade 5.

According to a 46^th embodiment, in the substrate of any one of the preceding embodiments, the one or more stain release agents adhered to the substrate increase the stain/ oil repellency rating of the substrate, measured in accordance with AATCC test method 118-2013, by at most 1 grade, preferably does not increase the stain/oil repellency rating.

According to a 47^th embodiment, in the substrate of any one of the preceding embodiments, the substrate exhibits a stain/oil repellency rating, measured in accordance with AATCC test method 118-2013, of at most grade 1, preferably grade o.

Wash durability

According to a 48^th embodiment, in the substrate of any one of the preceding embodiments, the mentioned properties of the substrate, such as stain release capability, antimicrobial efficiency, and/or properties related to hydrophilicity are achieved even after at least 25 laundry washes in a laundry washing machine at 85±i5 °C for 10-15 minutes, preferably using Tergitol 15-S-9 of Dow Chemicals, non- antimicrobial, non-ionic and non-chlorine containing laundry detergent, preferably followed by a standard rinse cycle and preferably dried at 62-96 °C for 20-30 minutes.

Starting material

According to a 50^th embodiment, in the substrate of any one of the preceding embodiments, the starting material comprises functional groups having the ability to bond one or more antimicrobial agents to the substrate.

According to a 51^st embodiment, in the substrate of any one of embodiments 1 to 50, the starting material comprises hydroxyl, peptide and/or carbonyl groups, in particular hydroxyl and/or peptide. According to a 52^nd embodiment, in the substrate of any one of the preceding embodiments, the starting substrate is a cellulosic substrate, a synthetic substrate, or a blend of cellulosic substrate and synthetic substrate.

According to a 53^rd embodiment, in the substrate of embodiment 52, the cellulosic substrate comprises cotton, viscose, rayon, linen, hemp, ramie, jute, and combinations (blends) thereof, preferably viscose.

According to a 54^th embodiment, in the substrate of any one of embodiments 52 or 53, the synthetic substrate comprises one or more selected from the group consisting of polyester, polyamide (nylon), acrylic polyester, spandex (elastane, Lycra), aramids, modal, sulfar, polylactide (PLA), lyocell, polybutyl tetrachloride (PBT), and combinations (blends) thereof, preferably polyester or polyamide (nylon), most preferably polyester. According to a 55^th embodiment, in the substrate of any one of embodiments 52 to 54, the blend of cellulosic substrate and synthetic substrate comprises between 20% and 80% of cellulosic substrate, preferably between 30% and 75%, more preferably between 50% and 70%, and most preferably about 65%. According to a 56^th embodiment, in the substrate of any one of embodiments 50 to 55, the blend of cellulosic substrate and synthetic substrate comprises between 20% and 80% of synthetic substrate, preferably between 25% and 70%, more preferably between 30% and 50%, and most preferably about 35%.

According to a 57^th embodiment, in the substrate of any one of the preceding embodiments, the substrate is a fiber, a yarn, or a fabric, preferably a yarn or a fabric, more preferably a fabric.

According to a 58^th embodiment, in the substrate of any one of embodiment 57, the fabric is selected from the group consisting of woven, knitted, warp-knitted, crocheted, and non-woven fabrics, such as bonded or spun bonded or melt blown or hot melted fabrics.

According to a 59^th embodiment, in the substrate of any one of the preceding embodiments, the starting substrate has a water holding capacity of at least 4 times its weight, preferably at least 5 times its weight, more preferably at least 6 times its weight, even more preferably at least 7 times its weight, in particular at least 8 times its weight, most preferably at least 9 times its weight, preferably when tested according to ASTM D7367-14.

Manufacturing process

A 60^th embodiment of the invention is a process for finishing a substrate, in particular textile material, comprising the steps of:

- treating the substrate using an antimicrobial liquor application process like an exhaustion or padding process, wherein the liquor comprises one or more antimicrobial agents;

preferably drying the substrate and treating the substrate using a hydrophilic/stain release liquor application process like an exhaustion or preferably a padding process, wherein the liquor comprises one or more hydrophilic agents and/or stain release agents; and

subjecting the treated substrate to a heat treatment.

According to a 61^st embodiment, in the process for finishing a substrate of embodiment 60, the antimicrobial liquor application process is preferably an exhaust process, and between the step of treating the substrate using an antimicrobial liquor application process and the steps of drying the substrate and treating the substrate using a hydrophilic/stain release liquor application process, one or more process cycles are performed, comprising the steps of drying the substrate and treating the substrate using a further antimicrobial liquor application process, preferably a padding process, the liquor comprises one or more antimicrobial agents.

A 62^nd embodiment of the invention is a process for finishing a substrate, in particular textile material, comprising the steps of:

preferably treating the substrate using an antimicrobial liquor application process like an exhaustion or padding process, wherein the liquor comprises one or more antimicrobial agents and drying the substrate;

treating the substrate using a hydrophilic/stain release liquor application process like an exhaustion or preferably a padding process, wherein the liquor comprises one or more hydrophilic agents and/or stain release agents; and

subjecting the treated substrate to a heat treatment.

Liquor

According to a 63^rd embodiment, in the process of any one of embodiments 60 to 62, the liquor of the antimicrobial and/or hydrophilic/stain release liquor application process has a pH-value of at most 6.9, preferably at most 6.5, more preferably at most 6.3, in particular at most 6.0, and most preferably at most about 5.5, and a pH-value of at least 3.0, preferably at least 3.5, more preferably at least 4.0, even more preferably at least 4.5, in particular at least 5.0, and most preferably at least about 5.5.

According to a 64^th embodiment, in the process of any one of embodiments 60 or 63, the amount of stain release and/or hydrophilic agents in the liquor of the antimicrobial liquor application process is together at most 10 gpl, preferably at most 5 gpl, more preferably at most 2 gpl, even more preferably at most 1 gpl, and most preferably o.

According to a 65^th embodiment, in the process of any one of embodiments 60 or 64, in the antimicrobial and/or the hydrophilic/stain release liquor application process, the agents and preferably all other components in the liquor are dissolved in the liquor, in particular are not dispersed in the liquor, and/or the liquor is substantially free of solids.

According to a 66^th embodiment, in the process of any one of embodiments 60 to 65, the liquor of the antimicrobial and/ or hydrophilic/ stain release liquor application process contains a solvent, preferably water, and the agents and the solvent form a homogenous mixture, and in particular do not form a slurry or dispersion.

According to a 67^th embodiment, in the process of any one of embodiments 60 to 66, the value of dynamic viscosity of the liquor of the antimicrobial and/or hydrophilic/stain release liquor application process at 20 °C and/or 80 °C, in centipoise (cP), is at most 20% higher than the dynamic viscosity of water at 20 °C and/or 80 °C, respectively, preferably at most 10%, more preferably at most 5%, particularly at most 2%, and most preferably at most about 0%.

According to a 68^th embodiment, in the process of any one of embodiments 60 to 67, the amount of latex in the liquor of the antimicrobial and/or the hydrophilic/stain release liquor application process is at most 10 gpl, preferably at most 5 gpl, more preferably at most 2 gpl, even more preferably at most 1 gpl, and most preferably o.

According to a 69^th embodiment, in the process of any one of embodiments 60 to 67, the amount of cyclodextrin and/or inclusion complexes, in particular inclusion complexes of fiber-reactive cyclodextrin derivatives and antimicrobial agents in the liquor of the antimicrobial and/or the hydrophilic/stain release liquor application process is at most 10 gpl, preferably at most 5 gpl, more preferably at most 2 gpl, even more preferably at most 1 gpl, and most preferably o.

According to a 70^th embodiment, in the process of any one of embodiments 60 to 69, the amount of dye in the liquor of the antimicrobial and/or main process cycle is at most 10 gpl, preferably at most 5 gpl, more preferably at most 2 gpl, even more preferably at most 1 gpl, and most preferably o.

Drying and curing According to a 71^st embodiment, in the process of any one of embodiments 60 to 70, the drying before the hydrophilic/stain release liquor application process is conducted at least partially at an ambient temperature of at least 70 °C, preferably at least 100 °C, more preferably at least 110 °C, most preferably at least about 120 °C.

According to a 72^nd embodiment, in the process of any one of embodiments 60 to 71, in the drying before the hydrophilic/stain release liquor application process is conducted at an ambient temperature of at most 160 °C, preferably of at most 140 °C, more preferably of at most 130 °C, and most preferably of at most about 120 °C.

According to a 73^th embodiment, in the process of any one of embodiments 60 to 72, the heat treatment comprises drying conducted at least partially at an ambient temperature of at least 60 °C, in particular at least 100 °C, preferably at least 110 °C, more preferably at least 120 °C.

According to a 74^th embodiment, in the process of any one of embodiments 60 to 73, the heat treatment comprises curing of the substrate, wherein the curing is conducted at least partially at a curing ambient temperature of at least 140 °C, preferably at least 160 °C, more preferably at least 170 °C, particularly at least 175 °C, and most preferably at least about 180 °C.

According to a 75^th embodiment, in the process of any one of embodiments 60 to 74, the heat treatment is conducted at an ambient temperature of at most 200 °C, preferably at most 190 °C, more preferably at most 185 °C, and most preferably at most about 180 °C.

According to a 76^th embodiment, in the process of any one of embodiments 74 to 75, curing takes place at the curing temperature as defined in embodiment 26d over a period of at least 30 seconds, preferably at least 40 seconds, more preferably at least 50 seconds, most preferably at least about 60 seconds, and preferably over a period of at most 120 seconds, preferably at most 90 seconds, more preferably at most 80 seconds, particularly at most 70 seconds, most preferably at most about 60 seconds.

According to a 77^th embodiment, in the process of any one of embodiments 74 to 76, the substrate is a fabric of at least 350 grams per m² and curing takes place at the curing temperature as defined in embodiment 24 over a period of at least 45 seconds, preferably at least 60 seconds, more preferably at least 75 seconds, most preferably at least about 90 seconds, and preferably over a period of at most 180 seconds, preferably at most 160 seconds, more preferably at most 140 seconds, particularly at most 120 seconds, most preferably at most about 90 seconds.

According to a 78^th embodiment, in the process of any one of embodiments 74 to 77, the substrate is a fabric of at least 500 grams per m² and curing takes place at the curing temperature as defined in embodiment 24 over a period of at least 60 seconds, preferably at least 75 seconds, more preferably at least 90 seconds, most preferably at least about 120 seconds, and preferably over a period of at most 240 seconds, preferably at most 210 seconds, more preferably at most 180 seconds, particularly at most 150 seconds, most preferably at most about 120 seconds.

According to a 79^th embodiment, in the process of any one of embodiments 74 to 78, curing immediately follows drying of the substrate without the substrate substantially cooling down between drying of the substrate and curing.

According to an 80^th embodiment, in the process of embodiment 79, the substrate is a fabric and drying of the substrate and curing are performed over a period of together at least 45 seconds, preferably at least 50 seconds, more preferably at least 55 seconds, most preferably at least about 60 seconds, per 100 grams of fabric weight per square meter.

According to an 81^st embodiment, in the process of any one of embodiments 79 or 80, the substrate is a fabric and drying of the substrate and curing are performed over a period of together at most 75 seconds, preferably at most 70 seconds, more preferably at most 65 seconds, most preferably at most about 60 seconds, per 100 grams of fabric weight per square meter. Exhaustion and padding parameters :

According to an 82^nd embodiment, in the process of any one of embodiments 60 to 81, where the antimicrobial and/or second liquor application process is an exhaustion process, the liquor has a temperature of at least 45 °C, preferably of at least 50 °C, more preferably of at least 60 °C, particularly of at least 70 °C, and most preferably of at least about 80 °C. According to an 83^rd embodiment, in the process of any one of embodiments 60 to 82, where the antimicrobial and/or hydrophilic/stain release liquor application process is an exhaustion process, the liquor has a temperature below boiling temperature, preferably of at most 95 °C, more preferably of at most 90 °C, particularly of at most 85 °C, and most preferably of at most about 80 °C.

According to an 84^th embodiment, in the process of any one of embodiments 60 to 83, the exhaustion process time is at most 90 min, preferably at most 80 min, more preferably at most 70 min, and most preferably at most about 60 min.

According to an 85^th embodiment, in the process of any one of embodiments 60 to 84, the exhaustion process time is at least 45 min, preferably at least 50 min, more preferably at least 55 min, and most preferably at least about 60 min.

According to a 86^th embodiment, in the process of any one of embodiments 60 to 85, in a padding process of the antimicrobial and/or hydrophilic/stain release liquor application process, the liquor pickup rate is at least 30%, preferably at least 40%, more preferably at least 50%, particularly at least 60% or at least 80%, and most preferably at least about 100%, and/or at most 140%, preferably of at most 130%, more preferably of at most 120%, particularly at most 110%, and most preferably of at most about 100%

According to an 87^th embodiment, in the process of any one of embodiments 60 to 86, in a padding process of the antimicrobial and/or hydrophilic/stain release liquor application process, the substrate passes through a multiple trough padding mangle, or a continuous dyeing or bleaching range.

Agents:

According to an 88^th embodiment, in the process of any one of embodiments 60 to 87, the one or more antimicrobial agents are selected and/or applied as defined in any one of embodiments 5 to 12. According to an 89^th embodiment, in the process of any one of embodiments 60 to 88, the liquor of the hydrophilic/stain release liquor application process contains metal, preferably copper, zinc, or silver, more preferably silver cations. According to a 90^th embodiment, in the process of embodiment 89, the liquor of the hydrophilic/stain release liquor application process contains such amounts of metal that in the hydrophilic/stain release liquor application process, the metal is applied to the substrate in an amount of at most 0.05%, preferably at most 0.01%, more preferably at most 0.005%, even more preferably at most 0.003%, and most preferably at most about 0.0017% on weight fabric of the substrate.

According to a 91^st embodiment, in the process of any one of embodiments 89 or 90, the liquor of the hydrophilic/stain release liquor application process contains such amounts of metal that in the hydrophilic/stain release liquor application process, the metal is applied to the substrate in an amount of at least 0.0001%, preferably at least 0.0005%, more preferably at least 0.001%, and most preferably at least about 0.0017% on weight fabric of the substrate.

According to a 92^nd embodiment, in the process of any one of embodiments 60 to 91, the antimicrobial agents are adhered to the substrate with a total weight as defined in embodiments 15 or 16, and/or an individual weight as defined for the respective antimicrobial agents in any one of embodiments 17 to 26.

According to a 93^rd embodiment, in the process of any one of embodiments 60 to 92, the one or more hydrophilic agents are selected and/or applied as defined in embodiment 28.

According to a 94^th embodiment, in the process of any one of embodiments 60 to 93, the one or more stain release agents are selected and/or applied as defined in embodiment 29.

According to a 95^th embodiment, in the process of any one of embodiments 60 to 94, the hydrophilic and/or stain release agents are adhered to the substrate with a total weight as defined in any one of embodiments 32 to 35. Starting material:

According to a 96^th embodiment, in the process of any one of embodiments 60 to 95, the (starting) substrate is a material as defined in any one of embodiments 50 to 59.

Other references between process and product embodiments:

According to a 97^th embodiment, in the process of any one of embodiments 60 to 96, the substrate obtained by the process is a substrate according to any one of embodiments 1 to 59.

A 98^th embodiment of the invention is a substrate, in particular textile material, obtainable according to the process of any one of embodiments 60 to 97.

Transportation layer (layer 1);

According to a 99^th embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, the substrate is an impression fabric, a knitted, warp knitted, and/ or a multifilament fabric, or nonwoven fabric, like a bonded fabric, in particular a spun bonded fabric, or a melt blown or hot melted fabric.

According to a 100^th embodiment, in the substrate of embodiment 99, the knitted or warp knitted fabric is a knit pique or jersey fabric, with or without elasticizing yarns such as Lycra.

According to a 101^st embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, or any one of embodiments 99 or 100, at least 95%, preferably at least 97%, more preferably at least 99% of the starting substrate consists of a synthetic fiber, such as polyamide (nylon), polypropylene, or preferably polyester.

According to a 102^nd embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, or any one of embodiments 99 to 101, the substrate has at least 25, preferably at least 30, more preferably at least 35, and most preferably at least about 40 holes, per cm². According to a 103^rd embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, or any one of embodiments 99 to 102, the substrate has at most 625, preferably at most 300, more preferably at most 100, and most preferably at most about 40 holes, per cm².

According to a 104^th embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, the size of the holes is at least 0.02 mm, preferably at least 0.04 mm, more preferably at least 0.06 mm, in average diameter.

According to a 105^th embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, the size of the holes is at most 2.0 mm, preferably at most 1.5 mm, more preferably at most 1.0 mm, and most preferably at most 0.08 mm, in average diameter.

According to a 106^th embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, or any one of embodiments 99 to 105, the starting substrate has a weight of at least 25 GSM, preferably 50 GSM, more preferably at least 80 GSM, even more preferably at least 100 GSM, particularly at least 120 GSM, and most preferably at least about 125 GSM.

According to a 107^th embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, or any one of embodiments 99 to 106, the starting substrate has a weight of at most 250 GSM, preferably at most 200 GSM, more preferably at least 170 GSM, particularly at least 150 GSM, and most preferably at most about 125 GSM.

According to a 108^th embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, or any one of embodiments 99 to 107,

- the azole-based compound is adhered to the substrate in an amount of at least 0.05%, preferably at least 0.10%, more preferably at least 0.15%, particularly at least 0.20%, and most preferably at least about 0.25%, and/or in an amount of at most 2.0%, preferably at most 1.5%, more preferably at most 1.0%, particularly at most 0.5%, most preferably at most about 0.25% on weight fabric of the substrate; and/or

- the metal is adhered to the substrate in an amount of at least 0.0005%, preferably at least o.ooi%, more preferably at least 0.002%, particularly at least 0.005%, most preferably at least about 0.01%, and/or in an amount of at most 0.1%, preferably at most 0.05%, more preferably at most 0.03%, particularly at most 0.02%, most preferably at most about 0.01% on weight fabric of the substrate; and/or

the quaternary ammonium organosilane compound is adhered to the substrate in an amount of at least 0.01%, preferably at least 0.02%, more preferably at least 0.05%, particularly at least 0.10%, and most preferably at least about 0.14%, and/or in an amount of at most 1.0%, preferably at most 0.75%, more preferably at most 0.5%, particularly at most 0.25%, most preferably at most about 0.14% on weight fabric of the substrate.

Main absorption layer(s) (layer 2):

According to a 109^th embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, the substrate is a heat set or heat bonded, spun bonded, melt blown, or preferably needle punch non-woven fabric, or a polar or preferably terry fleece fabric.

According to a 110^th embodiment, in the substrate of embodiment 109, the average diameter of the fibers of the non-woven fabric is at most 10 microns, preferably at most 6 microns, more preferably at most 3 microns, even more preferably at most 2 microns, and most preferably at most 1.5 microns.

According to a 111^th embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 95, or embodiments 109 or 110, the starting substrate comprises at least 30%, preferably at least 45%, more preferably at least 60%, most preferably at least about 65% viscose.

According to a 112^th embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, or any one of embodiments 109 or 111, the starting substrate comprises at most 100%, preferably at most 75%, more preferably at most 70%, most preferably at most about 65% viscose. According to a 113^th embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, or any one of embodiments 109 to 112, the starting substrate comprises at least 15%, preferably at least 25%, more preferably at least 30%, most preferably at least about 35% of a synthetic fiber, such as polyamide (nylon), polypropylene, or preferably polyester.

According to a 114^th embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, or any one of embodiments 109 to 113, the starting substrate comprises at most 100%, preferably at most 65%, more preferably at most 40%, most preferably at most about 35% of a synthetic fiber, such as polyamide (nylon) or preferably polyester.

According to a 115^th embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, or any one of embodiments 109 to 114, the starting substrate has a weight of at least 100 GSM, preferably at least 120 GSM, more preferably at least 150 GSM, and most preferably at least about 200 GSM.

According to a 116^th embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, or any one of embodiments 109 to 115, the starting substrate has a weight of at most 700 GSM, preferably at most 500 GSM, more preferably at most 400 GSM, and most preferably at most about 300 GSM.

According to a 117^th embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, or any one of embodiments 109 to 116,

- the azole-based compound is adhered to the substrate in an amount of at least 0.10%, preferably at least 0.20%, more preferably at least 0.50%, particularly at least 1.0%, and most preferably at least about 1.25%, and/or in an amount of at most 3.0%, preferably at most 2.5%, more preferably at most 2.0%, particularly at most 1.75%, most preferably at most about 1.25% on weight fabric of the substrate; and/or

- the metal is adhered to the substrate in an amount of at least 0.0001%, preferably at least 0.0002%, more preferably at least 0.0005%, particularly at least 0.0010%, most preferably at least about 0.0017%, and/or in an amount of at most 0.05%, preferably at most 0.02%, more preferably at most 0.01%, particularly at most 0.005%, most preferably at most about 0.0017% on weight fabric of the substrate; and/or the polyhexamethylene biguanide is adhered to the substrate in an amount of at least 0.05%, preferably at least 0.1%, more preferably at least 0.2%, particularly at least 0.3%, and most preferably at least about 0.4%, and/or in an amount of at most 2.0%, preferably at most 1.5%, more preferably at most 1.0%, particularly at most 0.8%, most preferably at most about 0.4% on weight fabric of the substrate; and/or

the polyglucosamine is adhered to the substrate in an amount of the at least 0.05%, preferably at least 0.10%, more preferably at least 0.15%, particularly at least 0.20%, and most preferably at least about 0.3%, and/or in an amount of at most 2.0%, preferably at most 1.5%, more preferably at most

1.0%, particularly at most 0.6%, most preferably at most about 0.3% on weight fabric of the substrate; and/or

- the quaternary ammonium organosilane compound is adhered to the substrate in an amount of at least 0.01%, preferably at least 0.02%, more preferably at least 0.05%, particularly at least 0.1%, and most preferably at least about 0.15%, and/or in an amount of at most 1.5%, preferably at most 1.0%, more preferably at most 0.5%, particularly at most 0.3%, most preferably at most about 0.15% on weight fabric of the substrate.

Water repellent layer (layer 4):

According to a 118^th embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, the substrate is woven and/or a microfiber.

According to a 119^th embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, or embodiment 118, at least 95%, preferably at least 97%, more preferably at least 99% of the starting substrate consists of polyester, nylon, polyamide, polypropylene, or any other synthetic substrate.

According to a 120^th embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, or any one of embodiments 118 or 119, the starting substrate has a weight of at least 50 GSM, preferably at least 80 GSM, more preferably at least 110 GSM, and most preferably at least about 125 GSM. According to a 121^st embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, or any one of embodiments 118 to 120, the starting substrate has a weight of at most 250 GSM, preferably at most 200 GSM, more preferably at least 150 GSM, and most preferably at most about 125 GSM.

According to a 122^nd embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, or any one of embodiments 118 to 121,

- the azole-based compound is adhered to the substrate in an amount of at least 0.1%, preferably at least 0.2%, more preferably at least 0.3%, particularly at least 0.4%, and most preferably at least about 0.5%, and/or in an amount of at most 2.0%, preferably at most 1.5%, more preferably at most 1.0%, particularly at most 0.75%, most preferably at most about 0.50% on weight fabric of the substrate; and/or

- the metal is adhered to the substrate in an amount of at least 0.0001%, preferably at least 0.0002%, more preferably at least 0.0005%, particularly at least 0.0010%, most preferably at least about 0.0017%, and/or in an amount of at most 0.05%, preferably at most 0.02%, more preferably at most 0.01%, particularly at most 0.005%, most preferably at most about 0.0017% on weight fabric of the substrate; and/or

the quaternary ammonium organosilane compound is adhered to the substrate in an amount of at least 0.1%, preferably at least 0.2%, more preferably at least 0.3%, particularly at least 0.4%, and most preferably at least about 0.72%, and/or in an amount of at most 2.0%, preferably at most 1.5%, more preferably at most 1.3%, particularly at most 1.0%, most preferably at most about 0.72% on weight fabric of the substrate.

According to a 123^rd embodiment, the substrate of any one of embodiments 1 to 59, or embodiment 98, or any one of embodiments 118 to 122, exhibits a water repellency rating of at least 80, preferably at least 90, most preferably 100, measured in accordance with AATCC test method 22-2014.

According to a 124^th embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, or any one of embodiments 118 to 123, the substrate exhibits a stain/oil repellency rating, measured in accordance with AATCC test method 118-2013, of at least grade 4, preferably at least grade 5, more preferably at least grade 6, and most preferably at least grade 7. According to a 125^th embodiment, in the substrate of any one of embodiments 1 to 59, or embodiment 98, or any one of embodiments 118 to 124, one or more water repellency agents are adhered to the substrate.

According to a 126^th embodiment, in the substrate of embodiment 125, the total amount of the one or more water repellency agents adhered to the substrate is at least 0.2%, preferably at least 0.5%, more preferably at least 1.0%, particularly at least 1.5%, and most preferably at least about 2.0%, and/or in an amount of at most 5.0%, preferably at most 4.0%, more preferably at most 3.0%, particularly at most 2.5%, most preferably at most about 2.0% on weight fabric of the substrate.

According to a 127^th embodiment, in the substrate of any one of embodiments 125 or 126, the substrate is obtainable by the process of any one of embodiments 60 to 97, the hydrophilic/stain release liquor application process is replaced by a water repellency liquor application process like an exhaustion or preferably a padding process, the liquor comprises the one or more water repellency agents.

According to a 128^th embodiment, in the substrate of any one of embodiments 125 to 127, the water repellency agents are C6- and/or C8-fluorocarbon and/or polyurethane (PU).

According to a 129^th embodiment, in the substrate of any one of embodiments 125 or 126, the substrate is obtainable by a synthetic rubber being applied to it after the antimicrobial liquor application process, preferably by screen or knife coating, preferably in an amount of at least 10% o.w.f, more preferably at least 20% o.w.f., even more preferably at least 30% o.w.f., particularly at least 40% o.w.f., most preferably at least about 50% o.w.f, and/or preferably in an amount of at most 150% o.w.f., more preferably at most 100% o.w.f., even more preferably at most 80% o.w.f., particularly at most 70% o.w.f., and most preferably at most about 50% o.w.f.

Different uses of the substrate, in particular hygiene product: A 130^th embodiment of the invention is a hygiene product comprising a substrate as defined in any one of embodiments 1 to 59, or embodiment 98, or any one of embodiments 99 to 128. According to a 131^st embodiment, in the hygiene product of embodiment 130, the substrate forms a layer.

According to a 132^nd embodiment, in the hygiene product of embodiment 131, the hygiene product comprises at least a second layer formed by a substrate as defined in any one of embodiments 1 to 59, or embodiment 98, or any one of embodiments 99 to 128.

According to a 133^rd embodiment, in the hygiene product of any one of embodiments 131 to 132, the hygiene product comprises a further layer of a substrate having a water repellency rating of at least 70, preferably at least 80, more preferably at least 90, most preferably 100, measured in accordance with AATCC test method 22-2014.

According to a 134^th embodiment, in the hygiene product of embodiment 133, the further layer comprises or consists of a synthetic fabric or a natural fabric or a blend of both, with or without the addition of a stretch yarn, in particular lycra or spandex.

According to a 135^th embodiment, in the hygiene product of any one of embodiments 133 or 1134, at least one of the surfaces of the further layer is finished with a water-and- oil repellant, optionally including polyurethane (PU), preferably enhanced with perfluoroalkylethylacrylate copolymer with C6 or and C8 carbon chain.

According to a 136^th embodiment, in the hygiene product of any one of embodiments 130 to 135, the hygiene product is one selected from the group consisting of sanitary napkins, sanitary lungots or langotes, panty or underwear liners, nappies, diapers, diaper liners, adult diapers, bed pads, or nursing pads.

A 137^th embodiment of the invention is a towel, kitchen towel, napkin, handkerchief, tampons, panties or underwear, bras, face mask, floor cleaning mop, wipe, or textile used in wound care, comprising or consisting of a substrate as defined in any one of embodiments 1 to 59, or embodiment 98, or any one of embodiments 99 to 128. A I37a^th embodiment is a method of using a substrate as defined in any one of embodiments 1 to 59, or embodiment 98, or any one of embodiments 99 to 128, as or as a material comprised by or forming a towel, kitchen towel, napkin, handkerchief, face mask, floor cleaning mop, wipe, tampon, in wound care, panty, underwear, or bra, or in wound care.

Hygiene product, in particular sanitary napkin:

A 138^th embodiment of the invention is a hygiene product, in particular a sanitary napkin, panty or underwear liner, nappy, diaper, diaper liner, adult diaper, bed pad, or nursing pad, comprising

one or more dispersion layers comprising or consisting of substrate, in particular a textile material, and

a water repellent layer, preferably having a water repellency rating of at least 70, preferably at least 80, more preferably at least 90, most preferably 100, measured in accordance with AATCC test method 22-2014. According to a 139^th embodiment, in the hygiene product of embodiments 138, the one or more dispersion layers comprise a transportation layer comprising a substrate as defined in any one of embodiments 99 to 124.

According to a 140^th embodiment, in the hygiene product of embodiment 139, the transportation layer is the inner layer which lies against the skin of the user when the hygiene product is worn or otherwise used as intended by the user.

According to a 141^st embodiment, in the hygiene product of any one of embodiments 138 to 140, the one or more dispersion layers comprise one or more main absorption layers, each main absorption layer comprising a substrate as defined in any one of embodiments 109 to 117.

According to a 142^nd embodiment, in the hygiene product of embodiment 141, the hygiene product comprises one main absorption layer of at least 50 GSM, preferably at least 100 GSM, more preferably at least 200, and most preferably at least 300 GSM. According to a 143^rd embodiment, in the hygiene product of embodiment 141, the hygiene product comprises one main absorption layer of at most 700 GSM, preferably at most 500 GSM, more preferably at most 400, and most preferably at most 300 GSM. According to a 144^th embodiment, in the hygiene product of any one of embodiments 139 or 140, and any one of embodiments 141 or 142, the one or more main absorption layers are located between the transportation layer and the water repellent layer.

According to a 145^th embodiment, in the hygiene product of any one of embodiments 141 to 144, the hygiene product comprises two main absorption layers.

According to a 146^th embodiment, in the hygiene product of embodiment 145, the hygiene product comprises one absorption layer of at least 50 GSM, preferably at least 100 GSM, more preferably at least 200, and most preferably at least 300 GSM and one absorption layer of at least 50 GSM, preferably at least 100 GSM, more preferably at least 150, and most preferably at least 200 GSM.

According to a 147^th embodiment, in the hygiene product of any one of embodiments 145 or 146, the hygiene product comprises one absorption layer of at most 500 GSM, preferably at most 400 GSM, more preferably at most 350, and most preferably at most 300 GSM and one absorption layer of at most 500 GSM, preferably at most 400 GSM, more preferably at most 300 GSM, most preferably at most 200 GSM.

According to a 148^th embodiment, in the hygiene product of any of embodiments 141 to 147, the total weight of the one or more main absorption layers is at least 1 gram, preferably at least 2 grams, more preferably at least 2.5 grams, most preferably at least 3 grams.

According to a 149^th embodiment, in the hygiene product of any of embodiments 141 to 148, the total weight of the one or more main absorption layers is at most 20 grams, preferably at most 15 grams, more preferably at most 10 grams, even more preferably at most 8 grams, and most preferably at most 6 grams.

According to a 150^th embodiment, in the hygiene product of any one of embodiments 138 to 149, the water repellent layer is a substrate as defined in any one of embodiments 118 to 128. According to a 151^th embodiment, in the hygiene product of any one of embodiments 138 to 150, the water repellent layer is the outer layer of the hygiene product. According to a 152^nd embodiment, in the hygiene product of any one of embodiments 138 to 151, a water impermeable layer is placed between the dispersion layers and the outer layer of the hygiene product.

According to a 153^rd embodiment, in the hygiene product of embodiment 152,

the water impermeable film is air permeable.

According to a i53a^th embodiment, in the hygiene product of any one of embodiments 152 or 153, wherein the water impermeable layer comprises or consists of a plastic material, in particular polypropylene (PP), polyethersulfon (PES), polyamide (PA), or preferably polyvinyl chloride (PVC) .

According to a i53b^th embodiment, in the hygiene product of embodiment 153a, wherein the average weight of the water impermeable layer is at least 30 GSM, preferably at least 50 GSM, more preferably at least 60 GSM, particularly at least 70 GSM, and most preferably at least 85 GSM.

According to a l53C^th embodiment, in the hygiene product of any one of embodiments 153a or 153b, wherein the average weight of the water impermeable layer is at most 300 GSM, preferably at most 200 GSM, more preferably at most 150 GSM, particularly at most 125 GSM, and preferably at most 85 GSM.

According to a 1530^th embodiment, in the hygiene product of any one of embodiments 153a to 153c, wherein the average thickness of the water impermeable layer is at least 0.03 mm, preferably at least 0.05 mm, more preferably at least 0.07 mm, particularly at least 0.08 mm, and most preferably at least about 0.1 mm.

According to a I53e^th embodiment, in the hygiene product of any one of embodiments 153a to 153d, wherein the average thickness of the water impermeable layer is at most 0.4 mm, preferably at most 0.3 mm, more preferably at most 0.2 mm, particularly at most 0.15 mm, and most preferably at most 0.1 mm. According to a 154^th embodiment, in the hygiene product of any one of embodiments 152 or 153, the water impermeable layer comprises a substrate such as bonded, preferably spun bonded non-woven textile fabric or paper, the substrate being coated by a water impermeable film.

According to a 155^th embodiment, in the hygiene product of embodiment 154, the water impermeable film is made of or comprises plastic, preferably polyurethane (PU).

According to a 156^th embodiment, in the hygiene product of any one of embodiments 154 to 155, the water impermeable film is located on the inner (upper) side of the water impermeable layer and the substrate is located on the outer (lower) side of the water impermeable layer.

According to a 157^th embodiment, in the hygiene product of any one of embodiments 154 to 156, the water impermeable film is sandwiched between two layers of substrate.

According to a 158^th embodiment, in the hygiene product of any one of embodiments 154 to 157, the weight of the water impermeable layer is at least 20 GSM, preferably at least 30 GSM, more preferably at least 40 GSM, most preferably at least 50 GSM.

According to a 159^th embodiment, in the hygiene product of any one of embodiments 154 to 158, the average weight of the water impermeable layer is at most 150 GSM, preferably at most 100 GSM, more preferably at most 75 GSM, most preferably at most 50 GSM.

According to a 160^th embodiment, in the hygiene product of any one of embodiments 154 to 159, the color of the substrate is brown.

Fluid dispersion:

According to a 161^st embodiment, in the hygiene product of any one of embodiments 138 to 160, the one or more dispersion layers in conjunction have fluid dispersion properties such that if 1 ml of water is dropped onto the dispersion layers, the water is dispersed within 1 sec in a dispersion area having an average diameter of at least 3 cm, preferably at least 4 cm, more preferably at least 4.5 cm, and most preferably at least 5 cm.

Shape and construction of the hygiene product:

According to a 162^nd embodiment, the hygiene product of any one of embodiments 138 to 161, has a functional zone through which it absorbs fluids. According to a 163^rd embodiment, in the hygiene product of embodiment 162, the functional zone has a maximum and/or minimum width of at least 3 cm, preferably at least 4 cm, most preferably at least 6 cm.

According to a 164^th embodiment, in the hygiene product of any one of embodiments 162 or 163, the functional zone has a maximum and/or minimum width of at most 20 cm, preferably at most 15 cm, more preferably at most 10, most preferably at most 7.5 cm.

According to a 165^th embodiment, in the hygiene product of any one of embodiments 162 to 164, the functional zone has a maximum and/or minimum length of at least 10 cm, preferably at least 15 cm, more preferably at least 20 cm, most preferably at least 23 cm.

According to a 166^th embodiment, in the hygiene product of any one of embodiments 162 to 165, the functional zone has a maximum and/or minimum length of at most 50 cm, preferably at most 40 cm, more preferably at most 35cm, most preferably at most 30 cm.

According to a 167^th embodiment, in the hygiene product of any one of embodiments 162 to 166, the hygiene product has a seam which is located at one or more edges of the hygiene product, where one or more layers of the hygiene product are directly or indirectly attached together.

According to a 168^th embodiment, in the hygiene product of embodiment 167, the one or more layers are attached together by stitching, gluing, or preferably by ultrasonic welding. According to a 169^th embodiment, in the hygiene product of any one of embodiments 167 or 168, the seam is located on one or preferably both longitudinal edges of the hygiene product, more preferably on all edges of the hygiene product.

According to a 170^th embodiment, in the hygiene product of any one of embodiments 167 to 169, at least the inner and/or the outer layer are among the layers attached together by the seam. According to a 171^th embodiment, in the hygiene product of any one of embodiments 167 to 170, when dependent from embodiment 152, the water impermeable layer is among the layers attached together by the seam.

According to a 172^nd embodiment, in the hygiene product of any one of embodiments 167 to 171, when dependent from embodiment 141, one or more or preferably all main absorption layers are not among the layers attached together by the seam.

According to a 173^rd embodiment, in the hygiene product of embodiment 172, the seam is located on both longitudinal edges of the hygiene product, and the width of one or more or preferably all of the absorption layers, along at least 50%, preferably at least 75%, more preferably at least 90%, most preferably 100% of the of the length of the respective absorption layer, is substantially equal to the respective distance between the inner edges of the seams on the longitudinal sides, substantially equal means plus/minus 2 centimeters, preferably plus/minus 1.5 centimeters, more preferably plus/minus 1 centimeter, even more preferably plus/minus 5 millimeters, and most preferably plus/minus 3 millimeters.

According to a 174^th embodiment, in the hygiene product of any of the embodiments 167 to 173, the seam has a width of at least 2 millimeters, preferably at least 4 millimeters, more preferably at least 6 millimeters, even more preferably at least 8 millimeters, most preferably at least 1 centimeter.

According to a 175^th embodiment, in the hygiene product of any of the embodiments 167 to 174, the seam has a width of at most 2 centimeters, preferably at most 1.5 centimeters, more preferably at most 1.3 centimeters, most preferably at most 1 centimeter. According to a 176^th embodiment, in the hygiene product of any of the embodiments 167 to 175, the water repellent layer is folded on one or preferably both longitudinal edges of the hygiene product such that the water repellent layer covers the one or more dispersion layers on the top or inner side in an area of the seam.

According to a 177^th embodiment, in the hygiene product of any of the embodiments 167 to 176, when dependent from embodiment 152, the water impermeable layer is folded on one or preferably both longitudinal edges of the hygiene product such that the water impermeable layer covers the one or more dispersion layers on the top or inner side in an area of the seam.

According to a I77a^th embodiment, in the hygiene product of any one of embodiments 139 to 177, when dependent from embodiment 141, the one or more main absorption layers are directly or indirectly attached to the transportation layer.

According to a i77b^th embodiment, in the hygiene product of embodiment 177a, the attachment of the one or more absorption layers to the transportation layer is by way of ultrasonic welding.

According to a l77c^th embodiment, in the hygiene product of embodiment 177b, the attachment of the one or more absorption layers to the transportation layer is by way of welding spots having a length of at most 10 cm, preferably at most 8 cm, more preferably at most 6 cm, even more preferably at most 4 cm, particularly at mot 2 cm, and most preferably at most 1 cm and/or a width of at most 3 cm, preferably at most 2 cm, more preferably at most 1.5 cm, and most preferably at most 1 cm.

According to a i77d^th embodiment, in the hygiene product of any one of embodiments 177a to 177c, the one or more absorption layers have two longitudinal sides and two front sides, each of the longitudinal sides being at least twice as long as each of the front sides, and the one or more absorption layers are attached to the transportation layer at least at two different areas on each of the longitudinal sides.

According to a i77e^th embodiment, in the hygiene product of any one of embodiments 177a to I77d, the one or more absorption layers have four sides, and the one or more absorption layers are attached to the transportation layer on each of the four sides. According to a l77f^th embodiment, in the hygiene product of any one of embodiments 177a to 177ε, the one or more absorption layers have two longitudinal sides and two front sides, each of the longitudinal sides being at least twice as long as each of the front sides, and the distance between any point of attachment of the one or more absorption layers to an outer layer at a longitudinal side and the edge of the longitudinal side is at most 3 cm, preferably at most 2.5 cm, more preferably at most 2 cm, and most preferably at most 1.5 cm. According to a 178^th embodiment, in the hygiene product of any one of embodiments 138 to I77f, the hygiene product comprises fixing means to attach the hygiene product to a textile, in particular an undergarment, or to the user.

According to a 179^th embodiment, in the hygiene product of embodiment 178, the fixing means are wings which can be attached to each other, preferably by a snap fastener.

According to a 180^th embodiment, in the hygiene product of embodiment 179, the wings are an extension of the outer layer. According to a 181^st embodiment, in the hygiene product of embodiment 180, the wings are part of the outer layer, and obtained by folding the outer layer on itself at least twice in an area of the seam.

According to a 182^nd embodiment, in the hygiene product of any one of embodiments 138 to 178, the hygiene product has a preferably plain main body and the fixing means are one or more ribbons, the one or more ribbons, or the one or more ribbons together with the main body, forming a loop around the waist of the user when the hygiene product is worn by the user. According to a 183^rd embodiment, in the hygiene product of embodiment 182, the one or more ribbons are attached on one or preferably both longitudinal ends of the main body.

According to a i83a^th embodiment, in the hygiene product of embodiment 183, the one or more ribbons are attached at the edge of the one or preferably both longitudinal ends of the main body. According to a 1830^th embodiment, in the hygiene product of any one of embodiments 182 to 183a, the main body of the hygiene product comprises two or more layers and the one or more ribbons are attached only at the outer layer, which is the layer which is away from body of the user when the hygiene product is worn by the user.

According to a 183^ embodiment, in the hygiene product of any one of embodiments 182 to 183b, the one or more ribbons comprise means for adjusting the length of the loop around the waist of the user.

According to a i83d^th embodiment, in the hygiene product of any one of embodiments 182 to 183c, the one or more ribbons comprise means for opening and closing the loop, preferably a buckle. According to a i83e^th embodiment, in the hygiene product of any one of embodiments 182 to 183d, the maximum width or diameter of the ribbons is at most 4 cm, preferably at most 3 cm, more preferably at most 2 cm, even more preferably at most 1 cm, and most preferably at most 0.5 cm. According to a 184^th embodiment, in the hygiene product of one of embodiments 182 to 183c, the one or more ribbons are made of or comprise an elastic material, preferably rubber.

According to a 185^th embodiment, in the hygiene product of any one of embodiments 182 to 184, the ribbons are passed through one or more passageways created by one or preferably both longitudinal ends of the main body being folded and attached to themselves, preferably by sewing.

Pad:

According to a 186^th embodiment, in the hygiene product of any one of embodiments 162 to 177, the minimum, maximum and/or average length of the hygiene product is at least 10 cm, preferably at least 20 cm, more preferably at least 25 cm, most preferably at least 28 cm. According to a 187^th embodiment, in the hygiene product of any one of embodiments 162 to 177 or 186, the minimum, maximum and/or average length of the hygiene product is at most 60 cm, preferably at most 40 cm, more preferably at most 35 cm, most preferably at most 31,5 cm.

According to a 188^th embodiment, in the hygiene product of any one of embodiments 162 to 177 or any one of embodiments 186 to 187, the minimum, maximum and/or average width of the hygiene product is at least 4 cm, preferably at least 6 cm, more preferably at least 8 cm, most preferably at least 8,7 cm.

According to a 189^th embodiment, in the hygiene product of any one of embodiments 162 to 177 or any one of embodiments 186 to 188, the minimum, maximum and/or average width of the hygiene product is at most 20 cm, preferably at most 12 cm, more preferably at most 9 cm, most preferably at most 8,7 cm.

According to a 190^th embodiment, in the hygiene product of any one of embodiments 162 to 177 or any one of embodiments 186 to 189, the minimum width of the functional zone is at least 3 cm, preferably at least 5 cm, more preferably at least 6 cm, most preferably at least 7 cm.

According to a 191^st embodiment, in the hygiene product of any one of embodiments 162 to 177 or any one of embodiments 186 to 190, the maximum width of the functional zone is at most 20 cm, preferably at most 15 cm, more preferably at most 10 cm, most preferably at most 7 cm.

According to a 192^nd embodiment, in the hygiene product of any one of embodiments 162 to 177 or any one of embodiments 186 to 191, the length of the functional zone is at least 10 cm, preferably at least 20 cm, more preferably at least 25 cm, most preferably at least 27 cm.

According to a 193^rd embodiment, in the hygiene product of any one of embodiments 162 to 177 or any one of embodiments 186 to 192, the length of the functional zone is at most 60 cm, preferably at most 40 cm, more preferably at most 35 cm, most preferably at most 30 cm. According to a 194^th embodiment, in the hygiene product of embodiment 178, and of any one of embodiments 162 to 177 or any one of embodiments 186 to 193, the fixing means are wings as in embodiments 179 to 181.

Lungote:

According to a 195* embodiment, in the hygiene product of any one of embodiments 162 to 185, the minimum, maximum and/or average length of the hygiene product or a main body of the hygiene product is at least 20 cm, preferably at least 40cm, more preferably at least 50 cm, most preferably at least 56 cm.

According to a 196^th embodiment, in the hygiene product of any one of embodiments 162 to 185 or 195, the minimum, maximum and/or average length of the hygiene product or a main body of the hygiene product is at 100 most cm, preferably at most 80 cm, more preferably at most 70 cm, most preferably at most 61 cm.

According to a 197^th embodiment, in the hygiene product of any one of embodiments 162 to 185 or any one of embodiments 195 to 196, the minimum, maximum and/or average width of the hygiene product or a main body of the hygiene product is at least 4 cm, preferably at least 5 cm, more preferably at least 7 cm, most preferably at least 8 cm.

According to a 198^th embodiment, in the hygiene product of any one of embodiments 162 to 185 or any one of embodiments 195 to 197, the minimum, maximum and/or average width of the hygiene product or a main body of the hygiene product is at most 25 cm, preferably at most 15 cm, more preferably at most 10 cm, most preferably at most 9 cm. According to a 199^th embodiment, in the hygiene product of any one of embodiments 162 to 185 or any one of embodiments 195 to 198, the minimum, maximum and/or average width of functional zone is at least 3 cm, preferably at least 4 cm, more preferably at least 5 cm, most preferably at least 6 cm. According to a 200^th embodiment, in the hygiene product of any one of embodiments 162 to 185 or any one of embodiments 195 to 199, the minimum, maximum and/or average width of functional zone is at most 24 cm, preferably at most 14 cm, more preferably at most 9 cm, most preferably at most 7 cm.

According to a 201^st embodiment, in the hygiene product of any one of embodiments 162 to 185 or any one of embodiments 195 to 199, the minimum, maximum and/or average length of the functional zone is at least 10 cm, preferably at least 15 cm, more preferably at least 20 cm, most preferably at least 23 cm.

According to a 202^nd embodiment, in the hygiene product of any one of embodiments 162 to 185 or any one of embodiments 195 to 201, the minimum, maximum and/or average length of the functional zone is at most 60 cm, preferably at most 40 cm, more preferably at most 35 cm, most preferably at most 30 cm.

According to a 203^rd embodiment, in the hygiene product of any one of embodiments 162 to 185 or any one of embodiments 195 to 202, the outer layer is longer than the functional zone, preferably extends substantially over the entire length of the hygiene product.

According to a 204^th embodiment, in the hygiene product of any one of embodiments 162 to 185 or any one of embodiments 195 to 203, the fixing means are ribbons as embodimented in embodiments 182 to 183.

Sonotrode:

A 205^th embodiment of the invention is a sonotrode for use in the process of attaching together the various layers of the hygiene product of any of the proceeding embodiments, in particular at the level of the seam using ultrasonic welding.

According to a 206^th embodiment, in the sonotrode of embodiment 205, the sonotrode comprises protrusions arranged in repeating patterns

According to a 207^th embodiment, in the sonotrode of embodiment 206, the repeating patterns of the protrusion are lines or preferably a grid of lines. According to a 208^th embodiment, in the sonotrode of any one of embodiments 206 or 207, the distance between lines formed by the protrusions, being calculated between the centers of the tops of two consecutive protrusions, is of at least of 1 mm, preferably of at least 1,5 mm, more preferably of at least 1,8 mm and most preferably of at least of 2mm.

According to a 209^th embodiment, in the sonotrode of any of embodiment 206 to 208, the distance between lines formed by the protrusions, being calculated between the centers of the tops of two consecutive protrusions, is of at most of 4 mm, preferably of at most 3 mm, more preferably of at most 2.5 mm and most preferably of at most of 2mm.

According to a 210^th embodiment, in the sonotrode any one of embodiments 206 to

209, one or more or all the sides of a protrusion form with the vertical direction an angle of at least 35⁰, preferably at least 40⁰, more preferably at least 45⁰ and most preferably of at least 48.2⁰.

According to a 211^th embodiment, in the sonotrode of any one of embodiment 206 to

210, one or more or all the sides of a protrusion form with the vertical direction an angle of at most 6o°, preferably of at most 55⁰, more preferably of at most 50⁰ and most preferably of at most 48.2⁰.

According to a 212^nd embodiment, in the sonotrode of any one of embodiments 206 to

211, the tops of protrusions have a width of at least 0.1 mm, preferably at least 0.2 mm, more preferably at least 0.25 mm and most preferably of at least 0.3 mm.

According to a 213^rd embodiment, in the sonotrode of any one of embodiments 206 to

212, the tops of protrusions have a width of at most 0.5 mm, preferably at most 0.4 mm, more preferably at most 0.35 mm and most preferably of at most 0.3 mm.

According to a 214^th embodiment, in the sonotrode of embodiment 213, the width of the top of the protrusion is the distance between two points at which the slope of the sides of the protrusion reaches an angle with the horizontal direction of at most 25⁰, preferably of at most 20⁰, more preferably at most 15⁰ and most preferably of at most io°. According to a 215^th embodiment, in the sonotrode of any one of embodiments 206 to 213, the top of protrusions is rounded and/or has no edges, in particular no sharp edges. According to a 216^th embodiment, in the sonotrode of embodiment 215, the angle of the slope of a protrusion, in particular in the area of the top and/or the transitions between the sides and the top of the protrusion, does not change by more than 30⁰, preferably not more than 20⁰, more preferably not more than 15⁰, even more preferably not more than io°, particularly not more than 8°, and most preferably not more than 6° within a distance of 0.01 mm.

According to a 217^th embodiment, in the sonotrode of any one of the embodiments 206 to 216, protrusions have a height of at most 1,5 mm, preferably at most 1,2 mm, more preferably of at most 0,9 mm, most preferably of at most 0,7 mm.

According to a 218^th embodiment, in the sonotrode of any one of the embodiments 206 to 217, protrusions have a height of at least 0,3 mm, preferably at least 0,5 mm, more preferably of at least 0,6 mm, most preferably of at least 0,7 mm. According to a 219^th embodiment, in the sonotrode of any one of embodiments 206 to

218, the protrusions are arranged on a flat blade or a plane, or on a roller.

According to a 220^th embodiment, in the sonotrode of any one of embodiments 206 to

219, the number of lines of protrusions running in the longitudinal direction is 2 or preferably 3.

A 221^st embodiment is a hygiene product, in particular a sanitary napkin, panty or underwear liner, nappy, diaper, diaper liner, adult diaper, bed pad, or nursing pad, the hygiene product comprising one or more dispersion layers and one or more water repellent layers, the hygiene product having a seam which is located at one or more edges of the hygiene product, where one or more layers of the hygiene product are directly or indirectly attached together by ultrasonic welding using the sonotrode of any one of embodiments 206 to 220.

A 222^nd embodiment is a washable and reusable hygiene product, in particular a sanitary napkin, panty or underwear liner, nappy, diaper, diaper liner, adult diaper, bed pad, or nursing pad, hygiene product comprising one or more dispersion layers and one or more water repellent layers, the hygiene product having a seam which is located at one or more edges of the hygiene product, where one or more layers of the hygiene product are directly or indirectly attached together by ultrasonic welding using a sonotrode comprising protrusions arranged in grids of lines, wherein the number of lines of protrusions running in the longitudinal direction is 2 or preferably 3.

According to a 223^rd embodiment, in the hygiene product of any one of embodiments 221 or 222, the hygiene product is the product of any one of embodiments 138 to 204.

A 224^th embodiment is a method of directly or indirectly attaching together one or more layers of a washable and reusable hygiene product, in particular a sanitary napkin, panty or underwear liner, nappy, diaper, diaper liner, adult diaper, bed pad, or nursing pad, the hygiene product comprising one or more dispersion layers and one or more water repellent layers, at a seam which is located at one or more edges of the hygiene product, by ultrasonic welding using a sonotrode comprising protrusions arranged in grids of lines, wherein the number of lines of protrusions running in the longitudinal direction is 2 or preferably 3. A 225^th embodiment is a method of assembling a washable and reusable hygiene product, in particular a sanitary napkin, panty or underwear liner, nappy, diaper, diaper liner, adult diaper, bed pad, or nursing pad, the hygiene product comprising a top layer, one or more main absorption layers, and a bottom layer, the method comprising the steps of

- optionally welding the top layer and the one or more main absorption layers together;

bringing the top layer and the one or more main absorption layers against the bottom layer such that the one or more main absorption layers are placed between the top layer and the bottom layer;

- folding at least parts of the longitudinal sides of the bottom layer such that the folded parts of the bottom layer cover the top layer on the top side;

creating a seam where at least the folded part of the bottom layer, the top layer and the part of the bottom layer located at the bottom are attached together by ultrasonic welding. According to a 226^th embodiment, in the method of embodiment 225, the seam spans at least 70%, preferably at least 80%, more preferably at least 90%, and most preferably about 100% of the longitudinal sides of the top layer. According to a 227^th embodiment, the method of any one of embodiments 225 or 226, comprises creating a seam where at least the front sides of the top layer and the part of the bottom layer located at the bottom are attached together by ultrasonic welding.

According to a 228^th embodiment, in the method of any one of embodiments 225 to 227, the one or more main absorption layers are not among the layers attached together by the seam of embodiment 225 and/or the seam of embodiment 227.

According to a 229^th embodiment, in the method of any one of embodiments 225 to 228, prior to creating the seam of embodiment 225, at least the folded part of the bottom layer, the top layer and the part of the bottom layer located at the bottom are attached together by ultrasonic welding at two or more spots on each longitudinal side of the bottom layer.

According to a 230^th embodiment, the method of any one of embodiments 225 to 229, comprises placing a water impermeable layer between the bottom layer and the one or more absorption layers, wherein the water impermeable layer is among the layers attached together by the seam of embodiment 225 and/or the seam of embodiment 227. According to a 231^st embodiment, in the method of embodiment 230, the water impermeable layer is a layer as described in any one of embodiments 152 to 160.

According to a 232^nd embodiment, the method of any one of embodiments 230 or 231, comprises folding at least parts of the longitudinal sides of the water impermeable layer such that folded parts of the water impermeable layer are located between the top side of the top layer and the folded parts of the bottom layer, wherein folded parts of the water impermeable layer are among the layers attached together by the seam of embodiment 224. According to a 233^rd embodiment, in the method of any one of embodiments 225 to 230, the seam is created by means of the sonotrode of any one of embodiments 206 to 220. According to a 234^th embodiment, in the method of any one of embodiments 225 to

233, the seam is created by means of a sonotrode comprising protrusions arranged in grids of lines, wherein the number of lines of protrusions running in the longitudinal direction is 2 or preferably 3. According to a 235^th embodiment, in the method of any one of embodiments 225 to

234, the sonotrode used for creating the seam of embodiment 225 comprises protrusions arranged on a plane having at least the length of the seam of embodiment 225. According to a 236^th embodiment, in the method of any one of embodiments 225 to

235, the top layer is a transportation layer as the described in any one of embodiments 139 or 140.

According to a 237^th embodiment, in the method of any one of embodiments 225 to 236, the one or more main absorption layers are layers as the described in any one of embodiments 141 to 149.

According to a 238^th embodiment, in the method of any one of embodiments 225 to

237, the bottom layer is an outer layer as the described in any one of embodiments 150 or 151.

According to a 239^th embodiment, in the method of any one of embodiments 225 to

238, the hygiene product is the product of any one of embodiments 138 to 204. A 240^th embodiment is a hygiene product obtainable by the method according to any one of embodiments 225 to 239.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS In the following, preferred embodiments of the invention are described with reference to the figures, in which:

Fig. 1 is a flowchart illustrating a process of finishing a textile material according to embodiments of the invention;

Fig. 2 is a flowchart illustrating a process of finishing a textile material according to a preferred embodiment of the invention;

Fig. 3 shows an embodiment of a sanitary napkin according to the invention, having the shape of a Pad;

Fig. 4 shows a cross section of the embodiment of the sanitary napkin along the line A-B shown in Fig. 3;

Fig. 5 shows a cross section of a modified embodiment of the sanitary napkin along the line A-B shown in Fig. 3;

Fig. 6 shows an embodiment of the sanitary napkin having the form of a pad, and wings as fixing means;

Fig. 7 shows a cross section of the embodiment of the sanitary napkin of Fig. 6 along the line A'-B' shown in Fig. 5;

Fig. 8 shows an embodiment of the sanitary napkin having the shape of a langot;

Fig. 9 shows a cross section of the embodiment of the sanitary napkin along the line A-B shown in Fig. 8; shows a cross section of the sanitary napkin of Fig. 8 along the line E-F shown in Fig. 8;

Fig. 11 to 14 show cross sections of the protrusions of a sonotrode for use in the process of attaching the various layers of the sanitary napkin when using ultrasonic welding; Fig. 15 shows a sonotrode according to an embodiment of the invention in the shape of a flat blade, and an enlarged view on the protrusions arranged on the top surface of the sonotrode;

Fig. 16 shows an enlarged view on a section of the longitudinal side of the sonotrode of Fig. 15;

Fig. 17 shows an enlarged view on the front side of the sonotrode of Fig. 15;

Fig. 18 to 22 show various intermediate products of a process of manufacturing a sanitary napkin according to an embodiment of the invention;

Fig. 23 shows a ribbon for attaching a sanitary napkin to the waist of a user;

Fig. 24 shows a fully assembled sanitary napkin according to an embodiment of the invention.

Preferred embodiments of the invention are also described with reference to the Tables annexed to this description, in which:

Table I shows the hydrophilic and antimicrobial performance of Working

Example I of the invention, which can be used as a transportation layer of a hygiene product like a sanitary napkin;

Table II shows the hydrophilic and antimicrobial performance of Working

Example II of the invention, which can be used as a main absorption layer of hygiene product like a sanitary napkin;

Table III shows the hydrophobic and antimicrobial performance of Working

Examples III of the invention, which can be used as a water-repellent layer of hygiene product like a sanitary napkin; Tables IXAAto IX BC specify textile materials according to experimental examples of the invention, wherein one single antimicrobial agent was applied;

Tables VAA to V BC specify textile materials according to experimental examples of the invention, wherein two antimicrobial agents were applied;

Tables VI A and VI B specify textile materials according to experimental examples of the invention, wherein three antimicrobial agents were applied;

Tables VII A and VII B specify textile materials according to experimental examples of the invention, wherein only antimicrobial agents were applied;

Tables VIII AA to VIII BE specify textile materials according to experimental examples of the invention, wherein antimicrobial agents were applied, and Hydrosil in different concentrations;

Tables IXAA to IX BE specify textile materials according to experimental examples of the invention, wherein antimicrobial agents were applied, and Permalose in different concentrations;

Tables XAA to X BE specify textile materials according to experimental examples of the invention, wherein antimicrobial agents were applied, and Hydroperm in different concentrations;

Tables XI AA to XI CC specify textile materials according to experimental examples of the invention, which are similar to Working Example II of the invention, wherein Hydrosil was applied in different concentrations;

Tables XII AA to XII CC specify textile materials according to experimental examples of the invention, wherein different exhaust times were applied; Tables XIII AA to XIII BD specify textile materials according to experimental examples of the invention, wherein different curing temperatures were applied;

Table XIV specifies a textile material according to an experimental example of the invention, wherein the antimicrobial agents were applied in a padding process.

Antimicrobial agents

Preferred antimicrobial agents

A great variety of antimicrobial agents can be fixed to a substrate like a textile by using the process of the invention described below. The antimicrobial agents are preferably non-ionic or cationic, but not anionic. The inventors found that anionic compounds do not bind well to substrates and can easily be removed, e.g. by salts. Cationic (acid) agents are believed to attack the substrate and therefore attach to it. Nanoparticles or antimicrobials in the form of nanoparticles are not preferred. Rather, the one or more antimicrobial agents have a preferred particle size, in all dimensions (length, width, height), of at least 250 nanometers, preferably at least 500 nanometers, more preferably at least 750 nanometers, and most preferably at least 1,000 nanometers.

According to the preferred embodiments of the invention, an antimicrobial agent is selected from quaternary ammonium organosilane compounds, metal, polyglucosamine (chitosan), azole-based compounds, and polyhexamethylene biguanide (PHMB).

As will be described for the preferred antimicrobial agents in detail below, the antimicrobial agents are bound to the substrate preferably either directly, in particular if the agent is a quaternary ammonium organosilane compound, polyglucosamine, a silver, copper, or zinc cation, which can be trapped in an inorganic or organic matrix, or PHMB, or via cross linking, in particular if the agent is an azole-based compound. The use of cyclodextrin and/or an inclusion complex, in particular an inclusion complex of fiber-reactive cyclodextrin derivatives and antimicrobial agents is not preferred for binding the antimicrobial agents, in particular because cyclodextrin is prohibitively expensive for most applications.

Suitable quaternary ammonium organosilane compounds have the formula

OR^J R⁴

R²0— Si— (CH₂)_W— N-— ⁶ X-

I I

OR³ R⁵ wherein the radicals have, independently of each other, the following meanings: R¹, R², and R3 are a

group, in particular a Ci-C6-alkyl group, preferably a methyl group; R⁴, and Rs are a Ci-Ci8-alkyl group, a Ci-Ci8-hydroxyalkyl group, a C₃-C₇- cycloalkyl group, a phenyl group, or a C₇-G₀-aralkyl group, in particular a Ci-Gs-alkyl group, preferably a methyl group; R⁶ is a G-Ge-alkyl group, in particular a Cs-Cis-alkyl group; X" is the counterion and an anion, for example chloride, bromide, fluoride, iodide, acetate, or a sulfonate group. Preferably, X" is chloride or bromide, and n is an integer of 1 to 6, in particular an integer of 1 to 4, preferably 3. The term "alkyl group" as used herein means a branched or unbranched alkyl group.

Quaternary ammonium organosilane compounds are known in the art and commercially available. Such compounds possess specific functional groups which enable their bonding to functional groups of the textile material. Under the reaction conditions disclosed herein, the quaternary ammonium organosilane compounds are bonded to the textile material via a covalent bond between the organosilane moiety and functional groups of the textile. Furthermore, organosilane moieties polymerize with each other, resulting in -O-Si-0- bonds. A possible reaction mechanism of the ammonium organosilane with a textile material having hydroxyl groups is shown hereinafter. I

Condenses with osher s₀ _ _¾'— OR Condenses with other silan© molecule ^ j ' * sllane molecule

OR Homopoly erization

Reacts with

substrate

by covalent bonding

X

I

O— St— o - Si— ο · Si

I I I

o o o

!

Textile substrate

A possible reaction mechanism of the ammonium organosilane with silk having peptide groups (-CO-NH-) is shown hereinafter.

X I

Condenses with other I Condenses with other

RO - SI— OR

sllane molecule sllane molecule

I

OR Homopolymerization

Reacts with

substrate

by covalent bonding

X X X

I I I

I

The quaternary ammonium organosilane compound can comprise dimethyloctadecyl[3-(trimethoxysilyl)propyl] ammonium chloride or dimethyltetradecyl[3-(trimethoxysilyl)propyl] ammonium chloride, most preferably dimethyloctadecyl[3-(trimethoxysilyl)propyl]ammonium chloride. The structure of dimethyloctadecyl[3-(trimethoxysilyl)propyl]ammonium is as follows (shown without counterion), wherein further the function of the silane moiety and the ammonium moiety are indicated:

Dimethyloctadecyl[3-(trimethoxysilyl)propyl] ammonium chloride is available on the market, e.g. in AEM 5772 (manufactured by Aegis, USA). Dimethyltetradecylfe- (trimethoxysilyl)propyl] ammonium chloride is available on the market, e.g. in Sanitized T 99-19 (manufactured by Sanitized AG, Switzerland). Other suitable ammonium silane compounds are described, e.g., in patent applications US 2011/0271873 Ai and US 2006/0193816 Ai, and in US patent 8,906,115.

The metal may be copper, zinc, or preferably silver, more preferably silver cations. Tests made by the inventors, whose results are not reproduced herein, showed that copper nitrate and zinc nitrate have similar antimicrobial properties as silver cations, and they can be adhered to substrates like textile materials in similar ways. However, the antimicrobial performance of silver is considerably higher than that of zinc, and even much higher than that of copper. Furthermore, treating substrates with copper or zinc tends to lead more easily to a change of the shade of the substrate than a treatment with silver. In particular embodiments, the silver cations are trapped in an inorganic or organic matrix. Preferably, the inorganic matrix is an aluminosilicate. Preferably, the organic matrix is a polymeric matrix. Such silver-containing microbial agents are known in art and available on the market.

A silver cation in form of its acrylate salt is shown hereinafter.

Silver aciylate salt

In an exemplary embodiment of the invention, the aluminosilicate is a sodium- poly(sialate-disiloxo) compound. Examples of an aluminosilicate and sialate structures as well as how bonding to a substrate can occur under the reaction conditions disclosed herein, are shown hereinafter.

AiuminoSilicate Trapped silver ions

Covalent bonding

Textile substrate

In an exemplary embodiment of the invention, the polymeric matrix into which silver cations are trapped is an acrylic polymer. Such silver-containing agents are known in the art and available on the market, e.g. in SilvaDur AQ Antimicrobial of Rohm and Haas, Switzerland, which contains acrylic polymer(s), silver nitrate, nitric acid and water. In another exemplary embodiment of the invention, the silver cations are trapped in a polymeric matrix. Such silver-containing agents are known in the art and available on the market, e.g. in SILVADUR™ 930 Antimicrobial of Dow Chemical Company, USA, which contains polymer(s), silver cations, ammonia, ethanol and water.

Polyglucosamine (chitosan) has a structure as shown hereinafter, wherein n indicates the number of monomer units as known in the art:

Under the reaction conditions disclosed herein, chitosan can react with -NH groups of silk resulting in covalent bonds as shown below.

Under the reaction conditions disclosed herein, chitosan can react with functional groups of cellulosic materials resulting in covalent bonds as shown below.

bonding

Chitosan treated cellulosic molecule

Chitosan is known in the art and commercially available, e.g. in Goyenchem-102 of Go Yen Chemical, Taiwan. It is particularly effective for killing viruses. It cannot easily be bound to synthetic substrates in a wash-durable or even substantially non-leaching manner.

Polyhexamethylene biguanide (PHMB) has a structure as shown hereinafter, wherein n indicates the number of monomer units as known in the art.

Under the reaction conditions disclosed herein, polyhexamethylene biguanide can react with hydroxyl groups of cellulose to form covalent bonds as shown hereinafter.

Under the reaction conditions disclosed herein, PHMB can react with carbonyl groups of silk fiber to form covalent bonds as shown hereinafter.

PHMB is known in the art and commercially available, e.g. in Texguard 20 of Swissol Specialties Pvt. Ltd, India. It cannot easily be bound to synthetic substrates in a wash- durable or even substantially non-leaching manner.

The azole-based compound can be, e.g., thiabendazole, carbendazim or preferably a triazole-based compound. Tests made by the inventors, whose results are not reproduced herein, showed that thiabendazole has similar antimicrobial properties as the triazole-based compounds, and it can be adhered to textile materials in similar ways. However, the antimicrobial performance of triazole-based compounds is considerably higher than that of thiabendazole.

The triazole-based compound is preferably propiconazole. Propiconazole has a structure as shown hereinafter.

Propiconazole is known in the art and commercially available, e.g. in Biogard PPZ 250 of Beyond Surface Technologies, Switzerland. Propiconazole can be bound to the substrate using a crosslinking agent, in particular a preferably blocked isocyanate compound, which results in urethane bonds, or an acrylate based-product. When using propiconazole, it is preferred to use a crosslinking agent in the liquor, in particular an exhaust liquor. It is even more preferred that the formulation of propiconazole contains the cross linking agent, or the cross-linking agent is part of the propiconazole formulation. Furthermore, it is preferred to use propiconazole together with an emulsifier. Propiconazole is particularly effective for killing fungi. The combination of antibacterial and antifungal properties is particularly advantageous for hygiene products used for the absorption of body fluids because it allows to make the products washable reusable. For example, even if the product is washed only with cold water, it is safe to reuse the product, and smells and rotting of the product are avoided. 6θ

Combinations of several antimicrobial agents In preferred embodiments of the invention, at least two, at least three, at least four, or all five of the antimicrobial agents selected from the above-mentioned group consisting of quaternary ammonium organosilane compounds, metal, chitosan, azole-based compounds, and PHMB are adhered to a substrate. The use of a combination of several antimicrobial agents has the following advantages over the use of a single agent:

First of all, different agents have different antimicrobial effects. Some may work better against bacteria, others against virus, and again other against fungi. Adding a variety of agents increases the spectrum of microbes which can be killed when they come in contact with the antimicrobial substrate.

Secondly, the use of a variety of agents can lead to significantly higher killing rates, even for the same organism. It is believed that the higher killing rates are due to synergistic effects between the different agents. The different agents may work synergistically together due to their different killing mechanisms.

Thirdly, the use of different agents may allow binding a higher total amount of agents to the substrate. For each of the different agents, there is an inherent limit on the quantity of the agent that can be adhered to the substrate in a non-leaching or substantially non-leaching manner. However, even if a substrate has been saturated with and for one agent, there may still be "space" for another agent.

Forth, the use of several agents allows reducing the leaching rates per agent. It is less the total amount of leached substances that will determine the threat to health and environment, but rather the amount per substance. Thus, although the total amount of leached substances may be the same, the leaching values per agent are lower, which is highly beneficial. Fifth, inherent undesired effects of a substance can be reduced or even counterbalanced by the use of several agents. For example, organosilane is hydrophobic by nature, which 6l is an undesired property for many applications of textiles. For such applications, the concentration of organosilane should be kept at a minimum.

Sixth, some of the preferred agents of the present invention are more expensive than others, e.g. silver cations and chitosan. Reducing the concentrations of these agents and complementing them by other agents allows achieving the same antimicrobial performance at substantially lower costs.

These advantages could be shown by the inventors in a series of experiments, some of which are presented in International patent application PCT/EP2016/054245 by the same applicant, and some of which will be presented below.

It is one merit of the invention to have recognized the advantages of using several antimicrobial agents in combination. It is another merit of the invention to have identified several highly effective antimicrobial agents which can be bound to a substrate together, which are relatively inexpensive, and low in toxicity. It is a further merit of the invention to have identified a process, which will be described below, by which many different agents can be applied to a substrate in one and the same liquor application process, be it in one or more application cycles, in a wash-durable or even substantially non-leaching manner. According to the preferred embodiments, wash- durable means that any agents that achieve a property of a substrate are essentially permanently adhered to the substrate, and the property is present even after at least 25 laundry washes in a laundry washing machine at 85*15 °C for 10-15 minutes using Tergitol 15-S-9 of Dow Chemicals, non-antimicrobial, non-ionic and non-chlorine containing laundry detergent, preferably followed by a standard rinse cycle and preferably dried at 62-96 °C for 20-30 minutes.

In some embodiments of the invention, at least one, preferably at least two, more preferably at least three, and most preferably all four selected from the group consisting of metal, azole-based compounds, chitosan, and PHMB are adhered to a substrate. This is the same group as the group of five mentioned above but without quaternary ammonium organosilane. Such a combination is particularly suitable where hydrophilicity is an important property of the treated substrate because organosilane renders the textile mildly hydrophobic. In some embodiments of the invention, at least one, preferably at least two, more preferably at least three, and most preferably all four selected from the group consisting of metal, azole-based compounds, quaternary ammonium organosilane compounds, and PHMB are adhered to a textile material. This is the same group as the group of five mentioned above but without chitosan. Such a combination is particularly suitable where manufacturing costs are an important issue because chitosan is relatively expensive.

In some embodiments of the invention, at least one, preferably at least two, more preferably all three selected from the group consisting of metal, azole-based compounds, and PHMB are adhered to a substrate. This is the same group as the group of five mentioned above but without chitosan and organosilane. Such a combination is particularly suitable where hydrophilicity is an important property of the treated substrate, and manufacturing costs are an important issue.

In some embodiments of the invention, at least one, preferably at least two, more preferably all three selected from the group consisting of metal, azole-based compounds, and quaternary ammonium organosilane compounds are adhered to a substrate. This is the same group as the group of five mentioned above but without chitosan and PHMB. Such a combination is particularly suitable where the starting textile is substantially made of a synthetic material and comprises no significant amounts of cellulosic material because chitosan and PHMB cannot easily be bound to synthetic substrates, in particular not in a wash-durable or even substantially non- leaching manner.

In some embodiments of the invention, an azole-based compounds and at least one, preferably at least two, or all least three, selected from the group consisting of metal, PHMB and quaternary ammonium organosilane compounds are adhered to a substrate. The azole-based compounds, in particular propiconazole, are highly efficient against fungi, whereas the other three agents are highly efficient against bacteria. Therefore, azole-based compounds and at least one of the other three agents complement each other well, for manufacturing textiles that are effective against both bacteria and fungi.

Amounts of antimicrobial agents adhered to a textile material The ideal percentage of the chemicals present on textile materials has been elaborated in an extensive research and development effort and is in part based on the work discussed in International patent application PCT/EP2016/054245 by the same applicant.

Preferably, the total amount of the one or more antimicrobial agents adhered to the textile material is at most 4.0%, preferably at most 3%, more preferably at most 2.5%, and most preferably at most about 2% on weight fabric of the textile material. These amounts represent the maximum amount of antimicrobial agents the textile can take in, and if higher amounts are applied, leaching of the agents increases significantly. Furthermore, the total amount of the one or more antimicrobial agents adhered to the textile material is preferably at least 0.1%, preferably at least 0.2%, more preferably at least 0.3%, and most preferably at least about 0.4% on weight fabric of the textile material, to ensure high antimicrobial efficiency.

In preferred embodiments, PHMB is adhered to the textile material in an amount of at most 1.5%, preferably at most 1%, more preferably at most 0.8%, particularly at most 0.6%, and most preferably at most about 0.4% on weight fabric of the textile material. Furthermore, the PHMB is adhered to the textile material in an amount of preferably at least 0.1%, more preferably at least 0.2%, even more preferably at least 0.3%, and most preferably at least about 0.4% on weight fabric of the textile material.

In preferred embodiments, metal is adhered to the textile material in an amount of at most 0.1%, preferably at most 0.05%, more preferably at most 0.03%, even more preferably at most 0.02%, and most preferably at most about 0.0085% on weight fabric of the textile material. Furthermore, the metal is adhered to the textile material in an amount of preferably at least 0.0002%, more preferably at least 0.0005%, even more preferably at least 0.001%, and most preferably at least about 0.0017% on weight fabric of the textile material.

In preferred embodiments, azole-based compounds are adhered to the textile material in an amount of at most 2.5%, preferably at most 2.0%, more preferably at most 1.75%, and most preferably at most about 1.25% on weight fabric of the textile material. Furthermore, the azole-based compounds are adhered to the textile material in an amount of preferably at least 0.05%, more preferably at least 0.1%, even more preferably at least 0.15%, and most preferably at least about 0.25% on weight fabric of the textile material.

In preferred embodiments, chitosan is adhered to the textile material in an amount of at most 1.5%, preferably at most 1.0%, more preferably at most 0.7%, in particular at most 0.5%, and most preferably at most about 0.3% on weight fabric of the textile material. Furthermore, chitosan is adhered to the textile material in an amount of preferably at least 0.05%, more preferably at least 0.1%, even more preferably at least 0.2%, and most preferably at least 0.3% on weight fabric of the textile material.

In preferred embodiments, quaternary ammonium organosilane compounds are adhered to the textile material in an amount of at most 2.0%, preferably at most 1.5%, more preferably at most 1.3%, in particular at most 1%, and most preferably at most about 0.72% on weight fabric of the textile material. Furthermore, the quaternary ammonium organosilane compounds are adhered to the textile material in an amount of preferably at least 0.03%, preferably at least 0.05%, more preferably at least 0.10%, and most preferably at least about 0.14% on weight fabric of the textile material.

The inventors found that if quaternary ammonium organosilane is applied to synthetic textile materials such as polyester or polyamide, amounts of more than 0.15% decrease the possibility to adhere hydrophilic and/or stain release agents in a subsequent processing step in a wash-durable manner. For cellulosic textiles such as cotton or viscose, the ability to bond hydrophilic and/or stain release agents in a wash-durable manner decreases even at lower amounts. Therefore, the use of at most only small or very small amounts of quaternary ammonium organosilane is preferred for cellulosic textiles where hydrophilic and/or stain release agents are to be adhered to the textile as well. In such embodiments, quaternary ammonium organosilane compounds are adhered to the textile material in an amount of at most 1.5%, preferably at most 1.0%, more preferably at most 0.5%, in particular at most 0.3%, and most preferably at most about 0.15% on weight fabric of the textile material. In this case, the quaternary ammonium organosilane compounds are adhered to the textile material in an amount of typically at least 0.01%, preferably at least 0.02%, more preferably at least 0.05%, particularly at least 0.1%, and most preferably at least about 0.15% on weight fabric of the textile material. Antimicrobial efficiency

The one or more antimicrobial agents adhered to the substrate preferably increase the reduction value of the substrate compared to the starting substrate, and/or the treated substrate preferably exhibits a reduction value of Escherichia coli ATCC 25922 and/or Staphylococcus aureus ATCC 6538 and/or Pseudomonas aeroginosa ATCC 15442 and/or Salmonella enterica ATCC 10708 and/or Candida albicans ATCC 10231 and/or Aspergillus niger 16404 measured in accordance with AATCC test method 100-2012 and/or ASTM E2149-10 by/of at least 90% (1 log), preferably at least 99% (2 log), more preferably at least 99.9% (3 log) within 10 minutes of contact time and/or of at least 99% (2 log), preferably at least 99.9% (3 log), more preferably at least 99.99% (4 log) within 1 hour of contact time and/or of at least 99% (2 log), preferably at least 99.9% (3 log), more preferably at least 99.99% (4 log), particularly at least 99.999 (5 log), and most preferably at least 99.9999% (6 log) within 24 hours of contact time.

Hydrophilic Agents/Stain Release Agents

A great variety of hydrophilic agents/stain release agents can be fixed to a substrate by using the process of the invention described below. Like the preferred antimicrobial agents, the hydrophilic agents/stain release agents are preferably non-ionic or cationic, but not anionic.

According to preferred embodiments of the invention, the one or more hydrophilic agents adhered to the substrate comprise at least one selected from the group consisting of carboxylic acid esters, polyester ether copolymers, starch based emulsions, fatty alcohol ethoxylates, and organosilane terpolymers, preferably fatty alcohol ethoxylates or organosilane terpolymers, most preferably organosilane terpolymers.

According to preferred embodiments of the invention, the one or more stain release agents adhered to the substrate comprise at least one selected from the group consisting of fatty alcohol ethoxylates and organosilane terpolymers, preferably organosilane terpolymers. In this case, the one or more or all of the stain release agents can convey hydrophilic properties to the substrate as well, which for many applications like sanitary napkins or other hygiene products is particularly advantageous. Organosilane terpolymer is known in the art and commercially available, e.g. in Hydrosil 8900, of Britacel Silicones Ltd., India. It is based on modified silicone and applicable for both natural (cellulosic) as well as synthetic substrates.

Fatty alcohol ethoxylates are known in the art and commercially available, e.g. in Hydroperm of Archroma, which contains ultra-fine polyester granules and is most suitable for cellulosic substrates, or in Permalose of Croda Chemicals, India, which contains ultra-fine polyurethane granules and is most suitable for synthetic substrates like polyester.

Both organosilane terpolymer and fatty alcohol ethoxylates are in preferred embodiments covalently bonded, or strongly fixed, optionally by using an inbuilt binder, to the substrate such that they can withstand numerous washes.

It is one merit of the invention to have recognized that the usability of many products such as sanitary napkins or other hygiene products can be increased by improving the hydrophilic properties of the substrates, which makes the substrates more absorbent. It is another merit of the invention to have recognized that the washability of such substrates can be increased by improving the stain release properties of the substrates. It is another merit of the invention to have identified several highly effective hydrophilic and stain release agents that achieve these properties. It is a further merit of the invention to have identified a process by which hydrophilic/stain release properties and in particular both antimicrobial and hydrophilic/stain release properties can be conveyed to a substrate, be it in one or more liquor application cycles, in a wash- durable or even substantially non-leaching manner. The combination of antimicrobial and stain release properties is particular advantageous for hygiene products intended for absorption of fluids because it allows to make such hygiene products washable und reusable. Finally, it is a merit of the invention to have identified combinations and amounts of antimicrobial agents and hydrophilic/stain release agents to be adhered to a substrate such that the hydrophilic/stain release agents do not prevent a satisfactory antimicrobial efficiency of the substrate, and the antimicrobial agents do not prevent satisfactory hydrophilic/stain release properties of the substrate.

Amounts of hydrophilic agents/stain release agents adhered to a textile material In preferred embodiments, the hydrophilic and/or stain release agents are adhered to a textile material in an amount of together at most 7%, preferably at most 5%, more preferably at most 4%, even more preferably at most 3%, in particular at most 2.5%, and most preferably at most about 2% on weight fabric of the textile material, and/ or in an amount of together at least 0.1%, preferably at least 0.3%, more preferably at least 0.3%, and most preferably at least about 0.4% on weight fabric of the textile material.

Organosilane terpolymers are preferably adhered to the textile material in an amount of at least 0.1%, preferably at least 0.2%, more preferably at least 0.5%, particularly at least 0.7%, and most preferably at least about 1% on weight fabric of the textile material. Fatty alcohol ethoxylates are preferably adhered to the textile material in an amount of at most 4%, preferably at most 3%, more preferably at most 2.5%, even more preferably at most 2%, and most preferably at most about 1.4% on weight fabric of the textile material. The inventors found that when more than 1% o.w.f. of organosilane terpolymers or more than 0.7% (cellulosic textiles) or 0.4% (synthetic textiles) o.w.f. of fatty alcohol ethoxylates are adhered to a textile material of 100 to 200 g/m², the efficiency of any antimicrobial agents adhered to the textile starts to decrease visibly. These amounts are about twice as high for thicker textiles having weight of, e.g., 500 g/m².

Efficiency of the hydrophilic agents/stain release agents In preferred embodiments of the invention, the one or more hydrophilic agents adhered to a textile material reduce the water absorbency time of the starting textile material by at least 20%, preferably at least 40%, more preferably at least 60%, and most preferably at least 80%, preferably when measured in accordance with AATCC test method 79-2014 (Option A). The treated textile material preferably exhibits a water absorbency time of at most 3 seconds, preferably at most 2 seconds, more preferably at most 1 second, and most preferably at most 0.5 seconds, preferably when measured in accordance with AATCC test method 79-2014 (Option A).

In some embodiments, the one or more hydrophilic agents adhered to a textile material preferably do not increase the water repellency of the starting textile material, measured in accordance with AATCC test method 22-2014. The treated textile material preferably exhibits a water repellency rating of at most 50, preferably o, measured in accordance with AATCC test method 22-2014.

In some embodiments, the one or more hydrophilic agents adhered to a textile material increase the vertical wicking rate of the starting textile material by at least a 10%, preferably at least 20%, and most preferably at least 30%, when tested according to AATCC test method 197-2013. The treated textile material preferably exhibits a vertical wicking rate of at least 0.15 mm/sec, preferably at least 0.20 mm/sec, more preferably at least 0.25 mm/sec, and most preferably at least 0.30 mm/sec, when tested according to AATCC test method 197-2013. The vertical wicking rate is the speed at which liquid travels along or through a textile held vertically.

In some embodiments, the one or more hydrophilic agents adhered to a textile material increase the horizontal wicking rate of the starting textile material by at least 20%, preferably at least 40%, more preferably at least 60% and most preferably at least 100% when tested according to AATCC test method 198-2013. The treated textile material preferably exhibits a horizontal wicking rate of at least 15 mm²/sec, preferably at least 10 mm²/sec, more preferably at least 15 mm²/sec, and most preferably at least 20 mm²/sec, when tested according to AATCC test method 197-2013. The horizontal wicking rate is the change in the area of the liquid with respect to time as the liquid travels through a textile held horizontally.

In some embodiments, the one or more hydrophilic agents adhered a the textile material have the effect that the textile material becomes noticeably more easy to squeeze out than the starting textile material, which is particularly advantageous if the textile is used together with water or other solvents.

In some embodiments, the one or more stain release agents adhered to a textile material increase the stain release rating of the starting textile material by at least one grade, more preferably by at least two grades, particularly at least three grades, and most preferably four grades, when tested according to AATCC test method 130-2010. The treated textile material preferably has a stain release rating, measured in accordance with AATCC test method 130-2010, of at least grade 3, preferably at least grade 4, and most preferably grade 5. In some embodiments, the one or more stain release agents adhered to a textile material increase the stain/oil repellency rating of the starting textile material, measured in accordance with AATCC test method 118-2013, by at most one grade, preferably do not increase the stain/oil repellency. The treated textile material preferably exhibits a stain/oil repellency rating, measured in accordance with AATCC test method 118-2013, of at most grade 1, preferably grade o.

Starting Substrate

Generally, any substrate can be used as the starting material, if it comprises functional groups having the ability to bond one or more antimicrobial agents to the substrate. According to some embodiments of the invention, the starting substrate comprises hydroxyl, peptide and/or carbonyl groups, in particular hydroxyl and/or peptide. These functional groups enable fixing, bonding, attaching or adhering of one or more antimicrobial and/or hydrophilic or stain release agents to the substrate. In exemplary embodiments, the starting substrate comprises peptide and/or hydroxyl groups, in particular hydroxyl groups. According to the preferred embodiments of the invention, the substrate is a cellulosic material, a synthetic material, or a blend comprising a cellulosic material and a synthetic material. According to specific embodiments of the invention, the cellulosic material comprises cotton, viscose, rayon, linen, hemp, ramie, jute, and combinations (blends) thereof, preferably cotton or viscose or combinations thereof, most preferably viscose. Examples of embodiments of synthetic material include polyester, polyamide (nylon), acrylic polyester, spandex (elastane, Lycra), aramids, modal, sulfar, polylactide (PLA), lyocell, polybutyl tetrachloride (PBT), and combinations (blends) thereof, preferably polyester. Blends of cellulosic and synthetic materials comprise between 20% and 80% of cellulosic material, preferably between 30% and 75%, more preferably between 50% and 70%, and most preferably about 60%. In specific embodiments, the blend of cellulosic material and synthetic material comprises between 20% and 80% of synthetic material, preferably between 25% and 70%, more preferably between 30% and 50%, and most preferably about 40%. Synthetic substrates are typically stronger and more durable than most substrates made of natural fibers. In addition, it is typically easier to bind chemical substances to a synthetic substrate. Counterexamples are the antimicrobial agents PHMB and chitosan, which are difficult to adhere to synthetic substrates. Synthetic substrates can be designed to not wrinkle, and they typically offer a priori stretching and stain release functionality. However, they are typically hydrophobic in nature and hardly biodegradable. Depending on the requirements, these functionalities may be advantageous or disadvantageous. Natural substrates are, in turn, fairly biodegradable and hydrophilic in nature. The advantages of synthetic and natural substrates tend to be opposing. Wrinkling, stain release and hydrophobic/hydrophilic properties may be mentioned as examples.

The aforementioned substrates may be textile material selected from the group consisting of woven, knitted, warp knitted, crocheted, and non-woven fabrics, such as bonded or spun bonded or melt blown or hot melted fabrics. The skilled person understands that several of the components listed above may be combined and thereby form the starting substrate to be finished with process 10 described subsequently, which is particularly suitable if the starting substrate is a textile material. In general, any starting textile material can be processed with said process 100, wherein the textile material is a fiber, preferably a yarn or a fabric, and most preferably a fabric. In case the textile material is a fabric, it can generally have any specific weight, or fabric weight, such as e.g. 100, 200 or 300 g/m² (GSM)

Finishing Process

Process Cycles The preferred process of finishing a substrate according to the present invention comprises one or more process cycles 100 of adhering antimicrobial and/or hydrophilic/stain release agents to a substrate. Each process cycle 100, exemplarily shown in Fig. 1, can be divided into at least two process steps, a first process step 110 and a second process step 120. The first process step is a liquor application process. The liquor application process is followed by the second process step 120, in which the substrate is dried, preferably by subjecting it to a heat treatment. Optionally, the step of drying is followed by a third process step 130, in which the substrate is cured. At least the last cycle of the process of finishing a substrate according to the present invention should comprise the third step 130 of curing.

Liquor Application Process

A liquor is a liquid containing chemicals to be applied to a substrate. In the present invention, the liquor comprises one or more antimicrobial agents and/or one or more hydrophilic/stain release agents. A liquor application process is any process by which the substrate is brought in contact with the liquor to treat the substrate with the chemicals. The liquor application process 110 shown in Fig. 1 comprises preferably an exhaust process 111 or a padding process 112. Preferably, the liquor has a pH-value of at most 6.9, preferably at most 6.5, more preferably at most 6.3, in particular at most 6.0, and most preferably at most about 5.5, and/or a pH-value of at least 3.0, preferably at least 3.5, more preferably at least 4.0, even more preferably at least 4.5, in particular at least 5.0, and most preferably at least about 5.5.

The liquor contains a solvent, preferably water, and the agents and the solvent preferably form a homogenous mixture, and in particular do not form a slurry or dispersion. The antimicrobial and/or the hydrophilic/stain release agents and preferably all other components in the liquor are preferably dissolved in the liquor, in particular are they not dispersed in the liquor, and/or the liquor is substantially free of solids.

The dynamic viscosity of the liquor at 20 °C and/or 80 °C, in centipoise (cP), is preferably at most 20% higher than the dynamic viscosity of water at 20 °C and/or 80 °C, respectively, preferably at most 10%, more preferably at most 5%, particularly at most 2%, and most preferably not higher at all. The amount of latex in the liquor is preferably at most 10 gpl, preferably at most 5 gpl, more preferably at most 2 gpl, even more preferably at most 1 gpl, and most preferably o. The amount of cyclodextrin and/or inclusion complexes, in particular inclusion complexes of fiber-reactive cyclodextrin derivatives and antimicrobial agents is preferably at most 10 gpl, more preferably at most 5 gpl, even more preferably at most 2 gpl, particularly at most 1 gpl, and most preferably o. The amount of dye in the liquor is preferably at most 10 gpl, more preferably at most 5 gpl, even more preferably at most 2 gpl, particularly at most 1 gpl, and most preferably o.

Exhaustion

As is known in the art, during an exhaust process (see e.g. step ill in Fig. 1), a substrate is brought in contact with a liquor which comprises ingredients which are transferred to the substrate during the exhaust process. This can be achieved by guiding the substrate through a container filled with the liquor. Yarn and woven fabrics are typically treated with exhaust processes. During a common exhaust process, chemicals to be applied to a substrate are dissolved or dispersed in a solvent, e.g. water, according to the required material to liquor ratio, which describes the ratio between the weight of the substrate to be treated and the weight of the liquor. For example, if the desired material to liquor ratio is 1:2, there would be 600 kg of liquor for 300 kg of substrate to be exhausted. The substrate is brought in contact with the liquor, for example by immersing it into the liquor, whereby the chemicals preferably contact the fibers of the substrate and more preferably enter the fibers. For obtaining proper diffusion and penetration of the chemicals in the fiber, a respective liquor temperature and respective exhaustion time are set, such that kinetic and thermodynamic reactions take place as desired. As the substrate and its fibers absorb the chemicals, the concentration thereof in the liquor decreases. As is known in the art, the degree of liquor exhaustion as a function of elapsed time is termed extent of the exhaust process. The percentage of the chemicals initially present in the liquor which is exhausted onto the substrate at the end of the process is called exhaustion rate or exhaust rate. Preferably, the exhaustion rate of the exhaust process is at least 90%, preferably at least 95%, more preferably at least 98%. This exhaustion rate allows for reducing costs, as most of the ingredients of the liquor are exhausted by the substrate. It is also more ecological than processes with lower exhaustion rates.

The exhaust process 111 shown in Fig. 1 may be performed by any suitable technique, and on any suitable machine, like a yarn dying machine, a beam machine, a winch machine, a jet-dyeing machine, a continuous dyeing range (CDR), continuous bleaching range (CBR), or a jigger machine. In a jigger machine, an open-width fabric revolves on two main rollers. The fabric passes from one roller through the liquor bath at the bottom of the machine and then onto a driven take-up roller on the other side. When all the fabric has passed through the bath, the direction is reversed. Each passage is called an end. The process typically involves an even number of ends. The liquor bath has one or more guide rollers around which the cloth travels. During the immersion, the desired contact with the process liquor is achieved. When passing through the liquor bath, the fabric picks up an adequate quantity of liquor, excess of which is drained out, but still a good quantity is held in the fabric. During rotation of the rollers, the chemicals contained in the liquor penetrate and diffuse into the fabric. The largest part of the diffusion process takes place not in the liquor bath but when the fabric is on the rollers, since only a very small length of fabric is in the liquor bath at a given time, and the major part is on the rollers. Jigger machines are preferred because they are very economical and because they can be used with a high material to liquor ratio.

The exhaust process ill shown in Fig. l allows for evenly spreading the liquor across the entire cross section of the substrate, such that preferably no spot of the substrate is left untouched by the liquor. As a result, interactions and/or bonds may be created between the substrate and one or more agents at this time. Preferably, most of the one or more agents of the liquor are exhausted evenly onto the entire cross section of the substrate.

In general, more heat on the substrate is better for bonding. Therefore, preferably, the temperature of the liquor during the exhaust process is sufficiently high and the exhaust time is sufficiently long such that the one or more agents in the liquor are substantially uniformly dispersed across the cross section of the substrate as a result of the exhaust process. Thus, the temperature of the liquor should be sufficiently high and the exhaust time should be sufficiently long such that preferably the substrate is well impregnated and the one or more agents are dispersed throughout the entire substrate. Preferably, the exhaust time is sufficiently long and the temperature of the liquor during the exhaust process is sufficiently high such that the substrate can achieve the desired performance after a respective curing process, as will be outlined below.

However, too much heat causes yellowness and weakens the substrate. Therefore, preferably, the temperature of the liquor during the exhaust process is sufficiently low and/or the exhaust time is sufficiently short such that the substrate does not discolor and/or turn yellow and/or its breaking (tensile) strength is not reduced by more than 15%, preferably not more than 10%, more preferably not more than 7%, and most preferably not more than 5%, as a result of the exhaust process. At too high temperatures, too much steam forms, reducing the efficiency of the process. Furthermore, if the temperature of the liquor is too high, turbulences can occur within the liquor bath and the substrate may get harmed.

The term exhaust time when used in the context of the present invention is preferably defined as the period starting when at least part of the batch of substrate first comes into contact with the liquor and lasting until the last part of the batch is taken out of the liquor. For a given application, the ideal exhaust time can vary significantly. In case the substrate is a fabric, it will depend on the type of machine, the size of the liquor bath, and the length and weight of the fabric. For example, if the ideal exhaust time for a fabric of a length of 1,500 meters is 60 minutes, the ideal exhaust time for a fabric of a length of 3,000 meters may be 100 minutes under otherwise identical conditions. Whenever an exhaust time is specified herein, it refers to the time which is equivalent to the exhaust time of a fabric of 1,500 meters in length and 200 g/m² in weight on a standard jigger machine (e.g. model number Y1100 manufactured by Yamuda) being operated at a standard fabric speed (e.g. 50 meters/minute). For any given substrate and exhaustion machine, the skilled person, using common general knowledge, will be able to determine the exhaust time which is equivalent to an exhaust time specified for the above-mentioned parameters.

The breaking strength may be measured with any suitable technique, and is preferably measured in accordance with ASTM standard D 5035-11 (in case the substrate is a fabric), or in accordance with ASTM standard D 2256/D 2256M-ioei (in case the substrate is a yarn).

The inventors found that in case of textile materials, the preferred temperature of the liquor during the exhaust process and the exhaust time is substantially independent of the weight and the type of the textile material, and of the agents in the liquor. This is because the ideal exhaust process parameters are determined by the way textiles, in particular multifilament yarns and fabrics, behave in general.

In the preferred embodiments, the liquor has a temperature of at least 45 °C, preferably of at least 50 °C, more preferably of at least 60 °C, particularly of at least 70 °C, and most preferably of at least about 80 °C. Furthermore, the liquor has a temperature below boiling temperature, preferably of at most 95 °C, more preferably of at most 90 °C, particularly of at most 85 °C, and most preferably of at most about 80 °C. The exhaustion process time is preferably at most 90 min, preferably at most 80 min, more preferably at most 70 min, and most preferably at most about 60 min. Furthermore, the exhaustion process time is preferably at least 45 min, preferably at least 50 min, more preferably at least 55 min, and most preferably at least about 60 min. As shown in International patent application number PCT/EP2016/054245 by the same applicant, when a textile is treated at a temperature of 80 °C for 60 minutes, it expands and opens up, exposing individual fibers so that the agent can reach even the most remote spot, and there is even dispersion of the agents. Accordingly, different textile materials can easily be treated by means of the exhaust process 111 shown in Fig. 1 without having to change parameters of the exhaust process, while still obtaining the best possible results.

Preferably, during the exhaust process 111 shown in Fig. 1, the liquor is stirred. The stirring should be performed at intervals, in other words, the stirring is performed regularly during the exhaust process with interruptions. It will be appreciated that other suitable intervals may preferably be set, depending on the specific application. Ideally, the stirring is performed continuously during the exhaust process. This intermixing of the chemicals in the exhaust bath increases reliability of the exhaust process, as one or more agents are more evenly distributed in the bath and as a result, a product with even quality throughout the entire textile material can be obtained. Preferably, the stirring is performed by means of a circulation pump, which circulates the liquor inside the exhaustion bath and which is typically comprised by a conventional exhaustion machine. The stirrer used by the inventors is a simple mixer, which is similar to but larger than a standard household mixer. The stirrer was added by the inventors to the exhaustion machine they used as it is not provided by conventional exhaustion machines. Most preferably, the liquor is stirred by means of both a circulation pump and a stirrer. Due to this extensive mixing of the liquor, the exhaust process is supported and one or more agents are well dispersed across the cross section of the substrate during the exhaust process. As is known in the art, an exhaust process is typically applied for dyeing cloth, for example. In such applications, typically only a circulation pump is applied for ensuring proper fluid characteristics of the bath, such that a homogeneous dispersion of the dyeing molecules is present in the bath. However, since the one or more agents used in the context of the present invention can be less soluble in water compared to dyeing agents, the utilization of both a stirrer and a circulation pump assures that the agents are not undissolved and do not settle at the bottom of the bath. Instead, due to the combination of both stirring means, the agents are uniformly and homogeneous dispersed throughout the bath.

Accordingly, with exhaust process 111 shown in Fig. 1, agents are substantially uniformly dispersed across the cross section of the substrate, whereby the substrate itself, advantageously, does not yellow and essentially does not lose its breaking strength.

Padding

Any suitable technique can be utilized for performing a padding process 112 shown in Fig. 1, in which preferably a respective liquor is prepared and fed through a pump to a respective padding mangle. Accordingly, padding process 112 shown in Fig. 1 preferably comprises applications of one or more rolls to obtain optimum wet pickup of the liquor on the substrate. According to a preferred embodiment, the substrate passes through a multiple trough padding mangle, or a continuous dyeing or bleaching range. The liquor may be at room temperature or it may be heated during the padding process. The appropriate padding mangle pressure is typically predetermined, depending on the quality of the substrate, and it is in general set such that the pick-up rate (or "wet pickup") of the agents is optimized. The pick-up rate specifies the amount of liquor applied and is defined as a percentage on the weight of the dry untreated substrate as follows: % pick-up rate = weight of liquor applied x 100 / weight of dry substrate. For example, a pick-up rate of 65% means that 650 grams of liquor are applied to 1 kg of substrate. Preferably, a liquor pickup rate of the padding process is at least 30%, preferably at least 40%, more preferably at least 50%, particularly at least 60% or at least 80%, and most preferably at least about 100%, and/or at most 140%, preferably of at most 130%, more preferably of at most 120%, particularly at most 110%, and most preferably of at most about 100%. However, if the substrate is already to a certain extent saturated with agents before the padding process is applied, e.g. because another process cycle has been performed previously, it is believed that the effective pick-up rate for the agents is only about 70% of the nominal pick-up rate mentioned above, in the sense that the rest of the agents padded onto the substrate does not become permanently fixed to the substrate. Drying

Any suitable technique can be utilized for performing the drying process step 120 shown in Fig. 1. Drying is, however, preferably performed by subjecting the substrate to a heat treatment. The heat treatment is preferred because it is more efficient for various reasons: accelerated manufacturing, i.e. shortened residence time of the substrate in the production chain and lean process management without removal for drying purposes and re-insertion of the substrate in the processing chain may be mentioned as examples. Furthermore, the substrate should be dried by a heat treatment before it is washed. This is because the heat treatment will achieve basic bonding of the agents to the substrate so that they will not immediately be washed out during the washing process. After drying process 120 by heat treatment, the substrate should be 99% devoid of moisture. However, when the substrate cools down to room temperature, it will have a moisture regain of, e.g., about 7-8% for cotton and of about 4-5% for polyester.

Preferably the drying is conducted at least partially at an ambient temperature of at least 70 °C, preferably at least 100 °C, more preferably at least 110 °C, most preferably at least about 120 °C. Lower temperatures would require longer dwell time, which is disadvantageous because a longer dwell time has a negative impact on the substrate in terms of yellowing and also on the strength of the substrate. Furthermore, the drying is preferably conducted at an ambient temperature of at most 160 °C, preferably of at most 140 °C, more preferably of at most 130 °C, and most preferably of at most about 120 °C.

Preferably, the drying time at the temperatures given above is of at least 30 seconds, preferably at least 40 seconds, more preferably at least 50 seconds, and most preferably at least about 60 seconds, per 100 g of fabric weight per m² (in case the substrate is a fabric). Further preferably, the drying is performed over a period of at most 120 seconds, preferably at most 90 seconds, more preferably at most 75 seconds, most preferably at most about 60 seconds, per 100 g of fabric weight per m² (in case the substrate is a fabric). It will be appreciated that the drying times increase with increasing fabric weight (per m²). The skilled person understands that similar drying times apply if the substrate is a yarn, and understands to choose respective drying times which then depend on the yarn diameter.

Drying process 120 is typically conducted by passing the substrate through a stenter or stenter frame (sometimes also referred to as a "tenter") or similar drying machine. By drying the substrate, preferably excess moisture is removed.

Curing

A curing process in the context of the present invention (see e.g. 130 in Fig. 1) is essentially a heat treatment process applied to a substrate for inducing physical cross- linking. Curing can only be performed once the substrate is dry because the temperature of the substrate cannot exceed 100 °C until the water in the substrate is evaporated.

The curing temperature is preferably sufficiently high and the curing time is preferably sufficiently long such that one or more agents applied to (preferably exhausted and/or padded onto) the substrate are sufficiently strongly fixed or bonded to the substrate. They should preferably be set such that the agents are bound to the substrate and optionally polymerized, become an inherent part of the substrate and provide the desired properties of the substrate in a wash-durable or even non-leaching manner. Depending on the agents and chemicals used, also a large part of the crosslinkmg of the agents takes place during the curing step. In case the substrate is a fabric, the curing time depends on the weight of the fabric (per m²). However, the inventors found that the preferred curing temperature, which will be detailed below, is substantially independent of the type of the substrate.

Furthermore, the curing temperature is sufficiently low and the curing time is sufficiently short such that the substrate does not discolor and/or turn yellow, and/or its breaking strength is not significantly reduced. Further preferred, the curing temperature is sufficiently low and the curing time is sufficiently short such that the substrate does not melt and/or burn and/or yellow, and/ or that the colors of the substrate do not substantially change (discolor) as a result of the curing. In the preferred embodiments, the curing process is conducted at least partially at an ambient curing temperature of at least 140 °C, preferably at least 160 °C, more preferably at least 170 °C, particularly at least 175 °C, and most preferably at least about 180 °C. Preferably, the curing process is conducted at an ambient temperature of at most 200 °C, more preferably at most 190 °C, even more preferably at most 185 °C, and most preferably at most about 180 °C. Thus, in the most preferred embodiment, the maximum curing temperature is 180 °C, independent from the substrate treated with process 100. In particular where the substrate is a fabric of less than 350 grams per m², curing takes place at the above stated curing ambient temperatures over a period of preferably at least 30 seconds, preferably at least 40 seconds, more preferably at least 50 seconds, most preferably at least about 60 seconds, and preferably over a period of at most 120 seconds, preferably at most 90 seconds, more preferably at most 80 seconds, particularly at most 70 seconds, most preferably at most about 60 seconds.

Where the substrate is a fabric between 350 and 500 grams per m², curing takes place at the above stated curing ambient temperature over a period of preferably at least 45 seconds, preferably at least 60 seconds, more preferably at least 75 seconds, most preferably at least about 90 seconds, and preferably over a period of at most 180 seconds, preferably at most 160 seconds, more preferably at most 140 seconds, particularly at most 120 seconds, most preferably at most about 90 seconds.

Where the substrate is a fabric of at least 500 grams per m², curing takes place at the above stated curing ambient temperature over a period of preferably at least 60 seconds, preferably at least 75 seconds, more preferably at least 90 seconds, most preferably at least about 120 seconds, and preferably over a period of at most 240 seconds, preferably at most 210 seconds, more preferably at most 180 seconds, particularly at most 150 seconds, most preferably at most about 120 seconds.

The preferred process parameters for curing (at 180 °C during the curing times mentioned above) were obtained in an extensive research and development campaign performed by the inventors and described in International patent application PCT/EP2016/054245 by the same applicant. 8θ

The curing process 130 is preferably carried out in a pass through a stenter. Referring to Fig. 1, a drying process 120 following a liquor application process may be directly followed by a curing process 130. In this case, the drying process 120 and the curing process 130 is preferably carried out together with one single pass through the stenter, preferably with a temperature ramp-up and ramp-down procedure as described in International patent application PCT/EP2016/054245 by the same applicant. Furthermore, where the substrate is a fabric, drying and curing of the textile material are performed at the above stated drying/curing ambient temperatures over a period of together at least 45 seconds, preferably at least 50 seconds, more preferably at least 55 seconds, most preferably at least about 60 seconds, per 100 grams of fabric weight per square meter, and preferably at most 75 seconds, preferably at most 70 seconds, more preferably at most 65 seconds, most preferably at most about 60 seconds, per 100 grams of fabric weight per square meter.

Putting the cycles together

The subsequent sections are dedicated to the description of the preferred and most preferred embodiments based on the above stated elementary building blocks specifying the starting substrates, composition of liquors as well as processing parameters including concentrations of agents, temperatures and processing times at standard pressure.

Exhaustion is preferred over padding in the first process cycle if the starting substrate is a multifilament yarn or a fabric made out of them, which is preferred for most applications because multifilament textiles are strong, have a high surface area, and can be blended. In an exhaust process, the multifilament textile opens up and the fibers are individually exposed to penetration by the agents. Thus, by use of an exhaust process, the agents can diffuse into the fibers and do not occupy the surface space of the fibers to the same extent as it is the case in more superficial liquor application processes like padding or spraying.

The use of an exhaust process in the first process cycle is particularly advantageous in cases where the first process cycle is followed by a further process cycle. The use of an exhaustion process in the first process cycle allows to improve the performance or convey another property by a second process cycle, in particular by a second process 8l cycle in which a padding process is used. E.g., the inventors found in experiments, whose results are not reproduced herein, that the antimicrobial performance and/or the wash-durability thereof can be increased if the substrate is treated with an antimicrobial liquor application process in each of two process cycles. In this case, the first antimicrobial liquor application process is preferably an exhaust process, and the second liquor application process is preferably a padding process. The two antimicrobial cycles can then be followed by one or more cycles in which a hydrophilic/stain release liquor application process is performed. In contrast, repeated superficial liquor applications like repeated padding applications will not improve performance, or at least not to the same extent, and it will be more difficult to impart another property in the second cycle. Furthermore, the inventors found that leaching is at lowest values only when exhaustion is used in the first process cycle. On the other hand, in the case substrates such as of non-woven fabrics, padding is preferred because non-woven fabrics can oftentimes not withstand the forces applied by exhaustion machines like jiggers.

For embodiments which make use of more than one processing cycle, padding is preferred for all subsequent cycles, independent of the starting substrate. This is because once a textile has been exhausted with agents in a first process cycle, the interior of the fibers is saturated at least to a certain degree, and space for more agents to be adhered to the textile material will be found primarily on the fiber surface. Furthermore, padding is less time consuming and therefore less costly than exhaustion. Curing, which consumes large amounts of energy and decreases the breaking strength of the substrate considerably, is preferably only performed in the last cycle. This is in general sufficient for bonding even the agents applied in the previous cycles to the substrate. Some embodiments may comprise a washing step at the end of one or more or even all cycles, to obtain particularly low leaching values (for a detailed description see International patent application PCT/EP2016/054245 by the same applicant). However, this may not be necessary for most of the preferred applications disclosed herein, such as sanitary products. Where washing is carried out after the drying step, in particular without or before curing, the drying should be performed with a heat treatment, preferably at least at the above-specified temperatures for drying. The heat treatment will ensure that there is a basic bonding between the substrate and the agents applied in this cycle, which prevents washing out of these agents in the washing step.

As a rule, where both antimicrobial and hydrophilic/stain release agents are applied to the substrate, antimicrobial and hydrophilic/stain release agents are, on the one hand, separately applied, i.e. in separate cycles. On the other hand, the antimicrobial agents are applied in one or more cycles prior to the cycle in which hydrophilic/stain release agents are applied, or applied for the first time. The inventors found that it is difficult, if not impossible to apply antimicrobial agents and hydrophilic/stain release agents in the same liquor in a wash-durable manner, or to apply antimicrobial agents in a wash- durable manner after hydrophilic/stain release agents have been applied to the substrate. Metal, in particular silver is an exception to this rule, as it may be applied together with hydrophilic/stain release agents in the same liquor, i.e. in the same cycle. However, it should not be applied after the application of hydrophilic/stain release agents, as the pores of the substrate would be blocked and bonding would be severely hampered.

A first group of embodiments of the present invention comprises the finishing of starting materials by adhering only antimicrobial agents to them but no hydrophilic/stain release agents, in one or more cycles of the finishing process of the present invention. A second group of embodiments comprises the finishing of starting materials by adhering only hydrophilic/stain release agents to them but no antimicrobial agents, in one or more cycles of the finishing process of the present invention. However, the most preferred group of embodiments of the present invention comprises the application of both antimicrobial agents and hydrophilic/stain release agents, in two separate cycles.

The preferred process of adhering both antimicrobial agents and hydrophilic/stain release agents to a substrate will now be described with reference to Fig. 2. In a first cycle 200a, the starting material, preferably a woven fabric, is subjected to an exhaustion process 211 (to a padding process 211 if the starting material is not a woven fabric), wherein the liquor comprises one or more antimicrobial agents dissolved in water, with the pH-value adjusted as specified above. The selection and the concentration of the antimicrobial agents in the liquor are such that the exhaustion process 211 results in a textile material to which the agents as specified above are adhered in the combinations and the amounts as specified above. Exhaustion 211 is performed at standard pressure with an exhaustion temperature of 80 °C for 60 minutes while the liquor is stirred. The first process cycle 200a is finished by drying 212 as described above, at 120 °C.

In a second cycle 200b, the substrate is subjected to a padding process 221, wherein the liquor comprises hydrophilic/stain release agents dissolved in water, with the pH-value again adjusted as specified above. The selection and the concentration of the hydrophilic/stain agents in the liquor are such that the padding process 221 results in a substrate to which the agents are adhered in the combinations and the amounts as specified above. Padding 221 is performed at both standard pressure and temperature, with a liquor pickup rate of 100%. The second process cycle is finished by drying 222 followed by curing 223 at 180 °C, wherein drying and curing are performed in one single pass through a stenter, which provides the finished material.

It will be appreciated that one or more additional process steps or cycles may be introduced between the individual process steps or cycles of process 100 of Fig. 1. Furthermore, one or more additional process steps or cycles may be performed prior to or after performing process 100 of Fig. 1. For example, before the start of process 100 with the liquor application process 110, the material should be tested, washed and/or cleaned. Preferably, the material is first tested and if necessary washed or cleaned, so that the material is free from all chemical contaminants that would hinder the application of the chemistry to the substrate. In a particularly preferred embodiment, one or more of the following steps may be performed prior to conducting process 100 of Fig. 1: Testing the material at laboratory scale to verify and confirm that it meets respective selection criteria, batching and stitching together of individual substrate pieces on a frame, inspecting the material thoroughly for defects, ensuring that the substrate is free from any chemical contaminants.

The substrate may be dyed prior to performing process 100. In some embodiments, the substrate is manufactured to be multifunctional. After having performed process 100, i.e. after the antimicrobial and/or hydrophilic/stain release treatment, a respective multifunctional treatment is performed. With such a multifunctional treatment, the substrate may be provided e.g. with water-and-oil-repellent properties, as will be discussed below, and/or other properties. It is also possible to conduct a multifunctional treatment in a padding process 112, wherein the padding liquor 0035

84 contains the respective functional agents, in addition to antimicrobial or hydrophilic/stain release agents.

It will be appreciated that different machines may be utilized in case the substrate is a yarn. For example, the exhaustion process may be performed with a pressurized yarn dyeing machine, and the yarn may then be treated with a hydro extractor for removing excess moisture. The drying and curing of the yarn may take place in a Radio Frequency RF Dryer and curing machine. The dwell times thereby depend on the yarn diameter, wherein the temperatures mentioned above still apply.

EXAMPLES

A series of different materials were finished and tested according to the test protocols stated herein. The test results as well as the references to the underlying test protocols are summarized in Tables I to XIV. All finished materials were treated with

antimicrobial agents. The materials were produced under laboratory conditions closely simulating the finishing processes described below.

Chemicals

Chemicals used for the examples and mentioned in the tables comprise the following:

"Texguard 20" of Swissol Specialties Pvt. Ltd, India A: a solution containing 20% PHMB;

"Biogard PPZ" (= Biogard PPZ 250) of Beyond Surface Technologies, Switzerland: a solution containing 25% of propiconazole;

"Silvadur 930" of Dow Chemical Company, USA: a solution containing 0.17% of silver cations trapped in a matrix;

"AEM 5772" of Aegis, USA: a solution containing 72% of quaternary ammonium organosilane compounds; "Chitosan 102" (= Goyenchem-102) of Go Yen Chemical, Taiwan: a solution containing 15% of chitosan; "Hydrosil" (= Hydrosil 8900) of Britacel Silicones Ltd., India: a solution containing 30% of organosilane terpolymer;

"Permalose" of Croda Chemicals, India: a solution containing 12% of fatty alcohol ethoxylates; "Hydroperm" (= Hydroperm RPU New liq c) of Archroma Management LLC, Switzerland: a solution containing 20% of fatty alcohol ethoxylates.

Recipes are stated in the tables. Percentages refer to the weight of the chemicals relative to the weight of the textile material ("o.w.f.") if not otherwise stated. The percentages of active agents which were used can be calculated with the concentration of actives in the chemicals as specified above. E.g., 3% Texguard 20 means that 20% x 3% = 0.6% o.w.f. of PHMB were used. The expression "gpl" refers to the amount of a chemical in a liquor. Again, the amount of actives can be calculated with the

concentration of actives in the chemicals as specified above. E.g., 50 gpl Hydrosil means that 30% x 50 gpl = 15 gpl of organosilane terpolymer were comprised in a liquor. Other units are explicitly stated in each table.

Test protocols

The underlying test protocols are generally publically available from the American Association of Textile Chemists and Colorist (AATCC) and the American Society for Testing and Materials (ASTM).

All microbiological tests were performed with cultures of the bacteria Escherichia coli American Type Culture Collection (ATCC) 25922, Staphylococcus aureus ATCC 6538, Pseudomonas aeruginosa ATCC 15442, Salmonella enterica ATCC 10708, and of the fungi Candida albicans ATCC 10231, and Aspergillus niger ATCC 16404.

Working Examples

Tables I to III summarize the starting materials and recipes used to produce Working Examples 1 to 3 according to preferred embodiments of the invention. Further Working Examples 4 to 6 are described below without reference to the Tables. 50035

86

Working Example l - Transportation layer for hygiene product like sanitary napkin

Working Example 1 will now be described with reference to Table I. This example can be used as a transportation layer in a hygiene product like a sanitary napkin as will be described below. However, the transportation layer can also be used in other hygiene products such as a panty or underwear liner, nappy, diaper, diaper liner, adult diaper, bed pad, or nursing pad.

The starting material of Working Example l was a 100% polyester fabric, construction i50d / lsod knitted impression, width 150 cm, fabric weight 126 g/m².

In a first process cycle, the fabric was exhausted and then dried. In a second process cycle, the fabric was padded, then dried again and cured. In the exhaustion process, 300 kg (approx. 1.500 meters) of starting textile material were loaded on a jigger machine (Yamuna, model number Yiioo). Into about 600 liters of water (material to liquor ratio of about 1:2), 15 kg (5% of the weight of the textile material) of Silvadur 930, resulting in an amount of 0.0085% silver o.w.f., 3 kg (1% of the weight of the textile material) of Biogard PPZ, resulting in an amount of 0.25% propiconazole o.w.f., 0.6 kg (0,2% of the weight of the textile material) of AEM 5772, resulting in an amount of 0.14% quaternary ammonium organosilane o.w.f. were added. The pH of the liquor was adjusted with 0.03 gpl of citric acid and maintained between pH 5 and pH 6, preferably at pH 5.5. The temperature of the liquor was set to 80 °C.

The jigger machine was started and run at a speed of 50 m/s, and the run was continued for the next 60 minutes (2 ends, with a break of less than 30 seconds between the ends). The liquor was constantly stirred with a stirrer at a speed of 300 rpm throughout the exhaustion process. The exhaustion rate was about 98%. Following this, the process bath was drained and the textile material was immediately transported to a stenter machine for drying. Thus, the exhaust time was 60 minutes.

The textile was dried by passing it through the stenter, which had 8 chambers and a length of 24 meters, at a speed of 20 centimeters per second. The maximum temperature of 120 °C was applied in all 8 chambers, i.e. during 120 seconds. Following this first process cycle, a second process cycle with a padding process was performed to apply a hydrophilic/stain release agent: To about 400 liters of water, 20 kg (50 gpl) of Hydrosil were added, resulting in a concentration of 15 gpl organosilane terpolymer in the liquor. During the padding process, the liquor had a temperature of 30 °C. The padding mangle pressure was 2 bar. The nominal pick-up rate was 100%. Estimating that, after the first process cycle, the effective pick-up rate in a padding process of subsequent process cycles is about 70% of the nominal pick-up rate, the amount of organosilane terpolymer adhered to the textile material was about 1.05% o.w.f.

The textile material was then dried and cured for in total 2 minutes in a single pass through the stenter, at a maximum temperature of 180 °C. The maximum curing temperature was applied for 60 seconds (in 4 of the 8 chambers of the stenter). Different tests regarding hydrophilicity, stain release capability, and antimicrobial efficiency were performed on the untreated starting textile material and on the finished textile of Working Example 1, the results of which are summarized in Table I.

With regard to hydrophilicity, the treated fabric exhibits essentially instant water absorbency, while the untreated fabric exhibits a water absorbency time of 5 seconds. Both were measured in accordance with AATCC test method 79-2014 (Option A). The vertical wicking rate of the treated textile increased slightly, from 0.28 to 0.36 mm/s, measured in accordance with AATCC test method 197-2013. However, the horizontal wicking rate increased significantly from 44,92 to 88.83 mm²/s, measured in accordance with AATCC test method 198-2013. The water repellency rating measured in accordance with AATCC test method 22-2014 was o both before and after finishing the textile. After 25 laundry washes (washes as described above), the hydrophilicity had slightly decreased. For example, the horizontal wicking rate had decreased to 63 mm²/s. However, water absorbency time was still instantaneous. The wash- durability of the increased hydrophilicity imparted by the finishing process is therefore satisfactory.

Both the starting textile material and the finished textile had an oil repellency rating of grade o when measured in accordance with AATCC test method 130-2013, which means that both absorb oily stains well. However, the finishing of the textile had the effect that the stain release capability increased from the low grade of 2 to the highest 7 050035

88 grade of 5 as measured in accordance with AATCC test method 130-2010. After 25 laundry washes, the stain release capability had slightly decreased, to grade 4. The wash-durability of the improved stain release properties imparted by the finishing process is therefore satisfactory.

While the starting textile material did not exhibit any measurable antimicrobial properties, the finished textiles were highly antimicrobial, and the imparted antimicrobial properties proved to be sufficiently wash-durable. The results following the AATCC 100-2012 and the AATCC 2149-10 test methods of the unwashed textiles showed that the treated fabric is capable of reducing all of the above-mentioned organisms by more than 99,9% (3 log) within 10 minutes of contact time. With increasing contact time (up to 24 hours), microbial reduction values increased up to more than 99,9999% (6 log) for all microbial cultures. After 25 washes as described above, the treated fabric still exhibited microbial reduction values of more than 3 log for all organisms within 10 minutes of contact time, and more than 5 log within 24 hours of contact time.

Working Example 2 - Absorption layer for hygiene product like sanitary napkin

Working Example 2 will now be described with reference to Table II. This example can be used as an absorption layer in a sanitary napkin as will be described below. However, the absorption layer can also be used in other hygiene products such as a panty or underwear liner, nappy, diaper, diaper liner, adult diaper, bed pad, or nursing pad.

The starting material of Working Example 2 was a 65% viscose and 35% polyester fabric, non-woven construction, width of 150 cm, fabric weight 500 g/m². In a first process cycle, the fabric was padded with antimicrobial agents and then dried. In a second process cycle, the fabric was padded with hydrophilic/stain release agents, then dried again and cured.

In the first process cycle, on 400 meters (300 kg) of starting textile material, a padding process was performed: To about 400 liters of water, 4 kg (10 gpl) of Silvadur 930 were added, resulting in 0.0017 gpl of silver cations, 20 kg (50 gpl) of Biogard PPZ, resulting EP2017/050035

89 in 12,5 gpl of propiconazole, 8 kg (20 gpl) of Texguard 20, resulting in 4 gpl of PHMB, and 8 kg (20 gpl) of Chitosan 102, resulting in 3 gpl of chitosan. During the padding process, the liquor had a temperature of 30 °C. The padding mangle pressure was 2 bar. The nominal pick-up rate was 100%, and it is estimated that the effective pick-up rate corresponds roughly to the nominal pick-up rate.

The textile was dried by passing it through the stenter, which had 8 chambers and a length of 24 meters, at a speed of 8 centimeters per second. The maximum temperature of 120 °C was applied in all 8 chambers, i.e. during 300 seconds.

Following this first process cycle, a second process cycle with a padding process was performed to apply a hydrophilic/stain release agent: To about 400 liters of water, 40 kg (100 gpl) of Hydrosil were added, resulting in a concentration of 60 gpl organosilane terpolymer in the liquor. During the padding process, the liquor had a temperature of 30 °C. The padding mangle pressure was 2 bar. The nominal pick-up rate was 100%. Estimating that, after the first process cycle, the effective pick-up rate in a padding process of subsequent process cycles is about 70% of the nominal pick-up rate, the amount of organosilane terpolymer adhered to the textile material was about 4.2% o.w.f.

The textile material was then dried and cured for in total 5 minutes in a single pass through the stenter, at a maximum temperature of 180 °C. The maximum curing temperature was applied for 150 seconds (in 4 of the 8 chambers of the stenter). The different performance tests of Working Example 2 are summarized in Table II.

With regard to hydrophilicity, the treated fabric exhibits essentially instant water absorbency, while the untreated fabric exhibits a water absorbency time of 7 seconds. The water holding capacity, measured with ASTM test method D 7367 was 9 times the weight of the fabric both before and after treatment, which showed that the hydrophilic agent does not increase the water holding capacity. The vertical wicking rate of the treated textile increased from 0.27 to 0.46 mm/s, and the horizontal wicking rate increased from 15,27 to 20,47 mm²/s. The water repellency rating was o both before and after finishing the textile. After 25 laundry washes, the horizontal wicking rate had decreased to 19,15 mm²/s; water absorbency time was still instantaneous. Both the starting textile material and the finished textile had an oil repellency rating of grade o. The finishing of the textile had the effect that the stain release rating increased from grade 2 to the highest grade (5). After 25 laundry washes, the stain release capability remained at grade 5.

While the starting textile material did not exhibit any measurable antimicrobial properties, the finished textiles were highly antimicrobial, and the imparted antimicrobial properties proved to be highly wash-durable. The unwashed textiles showed that the treated fabric is capable of reducing all tested organisms by more than 99,9% (3 log) within 10 minutes of contact time. With increasing contact time (up to 24 hours), microbial reduction values increased up to more than 99,999% (6 log) for most microbial cultures. After 25 washes, the treated fabric still exhibits microbial reduction values of more than 3 log for all organisms within 10 minutes of contact time, and more than 5 log within 24 hours of contact time.

Working Example 3 - Water repellent layer for hygiene product like sanitary napkin Working Example 3 will now be described with reference to Table III.

The starting material of Working Example 3 was a 100% polyester fabric, construction 8od x lsod / 144 x 76, width 150 cm, fabric weight 125 g/m². Such a fabric may be used, for instance, for a water repellent layer for a sanitary napkin. However, the water repellent layer can also be used in other hygiene products such as a panty or underwear liner, nappy, diaper, diaper liner, adult diaper, bed pad, or nursing pad.

In a first process cycle, the fabric was exhausted with antimicrobial agents and then dried. In a second process cycle, the fabric was coated with synthetic rubber, then padded with water repellency agents, then dried again and cured.

In the exhaustion process, 1,500 meters (281.25 ¾g of starting textile material were loaded on the jigger machine. Into about 600 liters of water, 2.81 kg (1% of the weight of the textile material) of Silvadur 930, resulting in an amount of 0.0017% silver o.w.f., 5.62 kg (2% of the weight of the textile material) of Biogard PPZ, resulting in an amount of 0.5% propiconazole o.w.f., 2.81 kg (1% of the weight of the textile material) of AEM 5772, resulting in an amount of 0.72% quaternary ammonium organosilane P T/EP2017/050035

91 o.w.f. The pH of the liquor was again adjusted at pH 5.5. The temperature of the liquor was set to 80 °C. The exhaustion rate was about 98%; the exhaust time was 60 minutes.

The textile was dried by passing it through the stenter, which had 8 chambers and a length of 24 meters, at a speed of 20 centimeters per second. The maximum temperature of 120 °C was applied in all 8 chambers, i.e. during 120 seconds.

Following this first process cycle, a second process cycle with a coating process was performed to apply 50% o.w.f. of synthetic rubber to the textile material, by screen or knife coating, wherein a liquor with 500 gpl of Apcotex CB300 of Apcotex Industries Limited was prepared, a chemical which contains 50% of synthetic rubber and polyurethane (PU). Then, a padding process was performed, wherein the liquor contained 100 gpl of Globe WP of Globechem Imports, India, a chemical which contains 20% of flurocarbon.

The textile material was then dried and cured for in total 2 minutes in a single pass through the stenter, at a maximum temperature of 180 °C. The maximum curing temperature was applied for 60 seconds (in 4 of the 8 chambers of the stenter). As can be seen in Table III, the treated fabric did not absorb water, while the untreated fabric exhibited a water absorbency time of 8 seconds. The finishing of the textile increased the water repellency rating measured in accordance with AATCC test method 22-2014 to grade 100. After 25 laundry washes, the absorbency remained at o, and the water repellency rating dropped slightly to grade 90. The wash-durability of the water repellency imparted by the finishing process is therefore satisfactory.

The starting textile material had an oil repellency rating of grade o (i.e., it did not repel oil) while in the finished textile, the oil repellency grade had increased to grade 7 out of 10 when measured in accordance with AATCC test method 130-2013, which means that the treated fabric repels oily stains well. The finishing of the textile also had the effect that the stain release rating increased from the grade 1 to the highest grade (5) as measured in accordance with AATCC test method 130-2010. After 25 laundry washes, the oil repellency decreased slightly to grade 5 and the stain release capability decreased slightly to grade 4. The wash-durability of the improved water repellency properties imparted by the finishing process is therefore satisfactory. While the starting textile material did not exhibit any measurable antimicrobial properties, the finished textiles were highly antimicrobial, and the imparted antimicrobial properties proved to be wash-durable.

Working Example 4: Disinfecting textile for application in diapers for incontinence

First, select a textile material comprising 100% cotton or 100% viscose or a blend of cotton and polyester or a blend of viscose and polyester.

Spray technique is used for application.

Chemicals used: 0.2 g/1 silver chloride in aluminosilicate carrier base, 5 g/1 polyhexamethylene biguanide, 10 g/1 propiconozole, and 0.03% citric acid for adjusting pH-value between 5 and 6.

All the chemicals are dissolved in water and fed into the drum of a spray gun. The textile material is then sprayed at room temperature. Following this, the material is dried with a hot air gun at 180 °C for 2 minutes.

Working Example 5: Disinfecting textile for use as a hand sanitizer

First, select a textile material comprising of 100% cotton or 100% viscose or a blend of cotton and polyester or a blend of viscose and polyester. Then prepare chemicals in a liquor, and feed into bath of exhaust machine. Fabric is dried at 120 °C using a stenter frame. Subsequent the fabric is put through a padding mangle at room temperature with chemicals and then cured at 180 °C. The fabric is then cut into required pieces and used as a napkin or handkerchief with hand sanitizing properties.

Chemicals used in exhaust: 0.2% owf silver chloride in aluminosilicate carrier base, 1 % owf of polyhexamethylene biguanide, 0.8% owf of polyglucosamine and 0.03% citric acid for adjusting pH-value between 5 and 6, along with water (OWF means on weight of fabric). Chemicals used in padding: 50 gpl of organosilane terpolymers, 50 gpl of carbendazime complex and 50 gpl of a cross linker based on acrylates. Working Example 6: Disinfecting and stain release bed pads

A bed pad can be produced by proceeding in the same manner as described above in Working Example 2.

Experimental Examples The inventors of the present invention performed comprehensive further experiments to determine the effect of different recipes and finishing process parameters. The finishing processes were in general as described above in the context of Working Example l. Where differences exist, these will be discussed below.

Most Experimental Examples were produced with two different starting textile materials: The first textile was a 100% cotton poplin (or popline), a strong and tightly woven fabric, with count 40s warp and 40s weft, construction 144 x 98, width 150 cm, fabric weight 135 g/m². Such a fabric may be used, for instance, for handkerchiefs. The second textile was a 100% polyester chiffon, a lightweight woven fabric with

construction 75D x 60D / 150 x 100, width 150 cm, fabric weight 110 g/m². Like the first textile, such a fabric may be used, for instance, for handkerchiefs.

Experimental Examples 1: Different combinations of antimicrobial agents

With Experimental Examples 1, the effect of the application of different numbers of agents to the starting textile materials was studied. The agents applied to the cotton material were taken from the group of silver, PHMB, and propiconazole, which are preferred antimicrobial agents for treating cellulosic textile materials. The agents applied to the polyester material were taken from the group of silver, propiconazole, and quaternary ammonium organosilane compounds, which is a group of preferred antimicrobial agents for treating synthetic textile materials. The textiles were treated with (1) each of the agents from the respective group individually, (2) all three tuple combinations of agents from the respective groups, and (3) all three agents from the respective groups together. The total amount of the chemicals in all experiments was 6% o.w.f. Thus, where one single agent was applied to the textile, 6% o.w.f. of the respective chemical was used, where a combination of two agents was applied, 3% o.w.f. of each of the respective two chemicals was used, and where a combination of three agents was applied, 2% o.w.f. of each of the respective three chemicals was used.

The finishing process was as described above in the context of Working Example 1, but since no hydrophilic/stain release agent was applied, there was only one process cycle. The fabric was exhausted and then dried and cured in one single pass through the stenter, with the process parameters as described above.

Tables IV AA to IV AC show the antimicrobial performance of the cotton textiles treated with one single agent. The results indicate that PHMB and silver applied individually are about equally efficient for killing bacteria (Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, and Salmonella enterica). However, they perform poorly when it comes to killing fungi (Candida albicans and Aspergillus nige ). On the other hand, propiconazole is efficient for killing fungi, but not efficient for killing bacteria.

Tables IV BA to IV BC show the antimicrobial performance of the polyester textiles treated with one single agent. Similar to the results for silver and PHMB on cotton, the results for polyester indicate that silver and quaternary ammonium organosilane compounds applied individually are about equally efficient in killing bacteria, but not efficient for killing fungi. However, unlike propiconazole adhered to cotton, propiconazole adhered to polyester is about as efficient against bacteria as silver and quaternary ammonium organosilane adhered to polyester. Furthermore, like propiconazole adhered to cotton, propiconazole adhered to polyester works well against fungi. The overall killing rates of the treated cotton materials were about the same as the killing rates of the treated polyester materials.

Tables V AA to V AC show the antimicrobial performance of the cotton textiles treated with combinations of two agents. The textile which was not treated with propiconazole (i.e. the textile treated with silver and PHMB) performed poorly against fungi. On the other hand, the textiles treated with propiconazole and either silver or PHMB performed well against both bacteria and fungi. The overall performance of the textiles treated with combinations of two agents was higher than the performance of the textiles treated with one single agent.

Tables V BA to V BC show the antimicrobial performance of the polyester textiles treated with combinations of two agents. Again, the textile which was not treated with propiconazole (i.e. the textile treated with silver and quaternary ammonium

organosilane compounds) performed poorly against fungi. On the other hand, the textiles treated with propiconazole and either silver or quaternary ammonium organosilane compounds performed well against both bacteria and fungi. The overall performance of the textiles treated with combinations of two agents also here was higher than the performance of the textiles treated with one single agent. Tables VI A and VI B show the antimicrobial performance of the cotton and polyester textiles, respectively, treated with combinations of all three agents from the above- specified groups. Overall performance is again higher than the performance of the textiles treated only with two agents.

From Experimental Examples l, it can be concluded that all antimicrobial agents identified as preferred by the inventors are about equally powerful against bacteria. This was also found in earlier experiments conducted by the inventors and discussed in International patent application PCT/EP2016/054245 by the same applicant. An exception to this rule is propiconazole (or other azole-based agents), which performs poorly against bacteria when adhered to cotton (or other cellulosic textile materials). The inventors believe that propiconazole gets more efficiently attached to synthetic textiles like polyester than to cellulosic textiles like cotton because polyester is thermoplastic polymer. Furthermore, only propiconazole (or other azole-based agents) or combinations comprising propiconazole show a good performance against fungi. Cotton (or other cellulosic textile materials) and polyester (or other synthetic textile materials) are generally equally suitable unless only propiconazole (or another azole- based agent) is applied, in which case polyester performs better. The experiments show a synergistic killing effect for the same organism with a growing number of agents. The effect is well visible.

Experimental Examples 2: Effect of hydrophilic/ stain release agents

The purpose of Experimental Examples 2 was to study the effect of the hydrophilic/stain release agents, in particular in combination with antimicrobial agents.

Tables VII A and VII B show the data of Experimental Examples 2a, where only antimicrobial agents were applied to the textile materials. The finishing process was the same as for Experimental Examples 1, but the antimicrobial recipes were more preferred recipes for cotton and polyester, respectively. As can be seen in Tables VII A and VII B, the hydrophilic/hydrophobic properties of the starting textile materials were not affected by the treatment with antimicrobial agents. The same is true for the stain release rating. It can therefore be concluded that any change in hydrophilicity and stain release rating observed above for Working Examples 1 and 2 can be attributed to the treatment with Hydrosil in the second process cycle, which contains the hydrophilic/stain release agent organosilane terpolymer.

Tables VIII AA to VIII AE (cotton) and Tables VIII BA to VIII BE (polyester) show the data of the textile materials of Experimental Examples≥b, which were treated with the same antimicrobial process as the Experimental Examples 2a of Tables VII A and VII B. However, these textiles were treated with Hydrosil in a second process cycle as described in the context of Working Examples 1 and 2. Varying amounts of Hydrosil were added to the liquor of the padding process: 30 gpl (Tables VIII AA and VIII BA), 50 gpl (like in Working Example 1, Tables VIII AB and VIII BB), 70 gpl (Tables VIII AC and VIII BC), 90 gpl (Tables VIII AD and VIII BD), and 110 gpl (Tables VIII AE and VIII BE).

The test results show that Hydrosil improves absorbency time and horizontal wicking significantly, as has already been observed in the context of the Working Examples. Vertical wicking is only marginally (cotton) or slightly (polyester) improved. Between an application of 30 gpl of Hydrosil in the padding liquor and 50 gpl, the stain release rating improves from grade 3 to grade 5. No significant changes can be observed in hydrophilicity and stain release capability when increasing the Hydrosil concentration in the liquor from 50 gpl to 110 gpl. However, the antimicrobial efficiency decreases with increasing amounts of Hydrosil.

Tables IX AA to IX AE (cotton) and Tables IX BA to IX BE (polyester) show the data of the textile materials of Experimental Examples 2c, which were treated with the same antimicrobial process as the Experimental Examples 2a and 2b. However, in the second process cycle, Permalose was applied in the padding process of the second process cycle instead of Hydrosil.

The treatment with Permalose increases the hydrophilic properties of cotton only slightly, which is not unexpected given that it is optimized for synthetic materials. Also the stain release rating of cotton is only improved to grade 2 (for more than 50 gpl). The antimicrobial efficiency decreases faster with increasing amounts of Permalose than with increasing amounts of Hydrosil. On the other hand, on polyester (Tables IX BA to IX BE), Permalose improves hydrophilicity and stain release capability equally well as Hydrosil, but again the antimicrobial efficiency decreases faster with increasing amounts of Permalose than with increasing amounts of Hydrosil.

Tables X AA to X AE (cotton) and Tables X BA to X BE (polyester) show the data of the textile materials of Experimental Examples 2d, which were treated by the same process as the Experimental Examples 2b and 2c. However, in the second process cycle, Hydroperm was applied in the padding process of the second process cycle instead of Hydrosil or Permalose.

The treatment with Hydroperm increases the hydrophilic properties of both polyester and cotton almost equally well as Hydrosil. The stain release rating of polyester is only improved to grade 3 (for 30, 50 and 70 gpl) and grade 4 (for 90 and 110 gpl), whereas the stain release rating of cotton is improved equally well or even slightly better compared to the treatment with Hydrosil. This may be due to the fact that Permalose is optimized for natural materials. The antimicrobial efficiency decreases with increasing amounts of Hydroperm about as much as with increasing amounts of Hydrosil, for both cotton and polyester.

Tables XI AA to XI AC (blend of 65% viscose and 35% polyester), Tables XI BA to XI BC (cotton), and Tables XI CA to XI CC (polyester) show the data of Experimental Examples 2e, where textile materials similar to the textile materials of Working Example 2 (absorption layer for hygiene product) were treated. The starting textile material was a fabric with non-woven construction and a weight of 500 g/m². The antimicrobial process was the same as for Working Example 2. Also the second process cycle was essentially the same as for Working Example 2, but Hydrosil was applied in increasing amounts of 50 gpl (Tables XI AA, BA, and CA), 100 gpl (Tables XI AB, BB, and CB), and 150 gpl (Tables XI AC, BC, and CC).

With the textile materials of 500 g/m², the hydrophilic properties still increase noticeably between a Hydrosil concentration of 50 gpl and 100 gpl. No further noticeable increase is observed for 150 gpl. On the other hand, the antimicrobial properties decrease only slightly between the Hydrosil concentration of 50 gpl and 100 gpl, whereas a significant decrease is observed between 100 and 150 gpl. From Experimental Examples 2, it can be concluded that it is not the antimicrobial agents used herein but only the hydrophilic/stain release agents which affect hydrophilicity and stain release capability. Furthermore, Permalose is preferred only for polyester or other synthetic textile materials. An optimum concentration of Hydrosil, Permalose and Hydroperm in a padding process with a pick-up rate of 100% seems to be 50 gpl for many applications, in particular textiles with a weight around ioo to 20o g/m² which results in actives adhered to the textile material in an amount of about 1% o.w.f. (organosilane terpolymer/Hydrosil) and about 0.4% o.w.f. (fatty alcohol ethoxylates/Permalose) or 0.7% o.w.f. (fatty alcohol ethoxylates/Hydroperm). On the other hand, for thicker textile materials, e.g. textile materials with a weight of 500 g/m², the optimum concentration appears to be twice as high. The inventors believe that this is due to the fact that for thicker fabrics, to get uniform penetration across the cross section, a higher concentration of hydrophilic/stain release agents is needed so that they reach to the core of the fabric.

Experimental Examples 3: Variations in the finishing process

In previous research efforts related to processes of conveying antimicrobial properties to textiles, the inventors had already found out that for the exhaustion process, a temperature of the exhaust liquor of 80 °C and an exhaust time of 60 min is ideal in terms of antimicrobial efficiency and wash-durability thereof, see International patent application PCT/EP2016/054245 by the same applicant. Furthermore, application of an exhaustion process with these parameters leads to higher antimicrobial efficiency and wash-durability than application of a padding process. Finally, the ideal curing temperature had been determined to be 180 °C. Experimental Examples 3 were manufactured to confirm that these earlier findings hold true also when a hydrophilic/stain release agent is applied to the textile, subsequent to the application of the antimicrobial agents. Tables XII AA to XII AC (cotton) and Tables XII BA to XII BC (polyester) show the data of the textile materials of Experimental Examples 3a. They were manufactured by finishing the starting textile material with the same antimicrobial exhaustion process cycle followed by a hydrophilic/stain release padding process cycle, and with the same recipes, as described above for Working Example I. However, the exhaust time was varied between 40, 60, and 80 minutes. The performance tests were made on the finished textile after 25 laundry washes. As could be expected, the variation in exhaust time in the antimicrobial process cycle had no impact on the hydrophilic and stain release properties. However, the tests confirmed that the antimicrobial performance after 25 washes for the samples treated with an exhaust time of 60 minutes is considerably higher (about 1 log) than that of the samples treated for 40 minutes, and slightly higher than that of the samples treated for 80 minutes.

Tables XIII AA to XIII AD (cotton) and Tables XIII BA to XIII BD (polyester) show the data of the textile materials of Experimental Examples 3b. They were finished with the same process as described above for Working Example 1, but the curing temperature (at the end of the second process cycle) was varied between 160, 170, 180, and 190 °C.

The performance tests were again made on the finished textile after 25 laundry washes. The hydrophilic properties peaked for a curing temperature of 180 °C. This could be observed in the horizontal wicking rate, which increased for the cotton textile material from 10 mm²/sec (curing temperature of 160 °C) to 25 mm²/sec (curing temperature of 180 °C), and then declined again to 20 mm²/sec (curing temperature of 190 °C). Similar results could be observed for the polyester textile material. However, the absorption time was the same for all curing temperatures, namely instantaneous for cotton and 5 seconds for polyester.

A similar observation could be made for the stain release capability, which for both cotton and polyester peaked at grade 4 for the curing temperature of 180 °C. For the lower curing temperatures of 160 °C and 170 °C, the stain release ratings were grade 2 and grade 3, respectively. For the curing temperatures of 190 °C, the stain release rating started to decline again, to grade 3.

Finally, also the antimicrobial performance peaked for both cotton and polyester at the curing temperature of 180 °C. A considerable performance increase could be observed when the curing temperatures went from 160 to 170 °C, and a slight increase when the curing temperature went from 170 to 180 °C. When the curing temperature was further increased to 190 °C, the performance started to decline again. Table XIV shows the data of the textile material of Experimental Example 3c, which was finished using a padding process in the first (the antimicrobial) cycle, instead of an lOO exhaust process. The concentrations of the antimicrobial chemicals in the padding liquor were chosen such that the amount of antimicrobial agents adhered to the finished textile material were the same as for the examples finished with an exhaust process. This experiment was only made with cotton, not with polyester.

The performance tests were again made on the finished textile after 25 laundry washes. Interestingly, hydrophilicity and the stain release capability were somewhat lower than in the examples finished with an exhaust process in the antimicrobial cycle. For example, the vertical wicking rate was only 20 mm²/sec instead of 25, and the stain release rating was only grade 3 instead of grade 4. It is believed that if the antimicrobial agents are padded in the first cycle, they occupy more space on the fiber surface than when they are exhausted, leaving less space for the hydrophilic/stain release agents to be adhered in the padding process of the subsequent cycle. Even more importantly, the antimicrobial performance of Experimental Example 3c was much lower (by about 2 log) than that of the examples where an exhaustion process was used for applying the antimicrobial agents.

From Experimental Example 3c, it can be concluded that applying the antimicrobials with an exhaustion process leads to much better antimicrobial performance and/or wash-durability of the antimicrobial properties than the application of a padding process. It even increases the hydrophilic and stain release properties conveyed in a subsequent padding process, and/or the wash-durability thereof. Experimental Example 3a confirmed that even when hydrophilic/stain release agents are applied to a textile which had been treated with antimicrobials in an exhaust process, an exhaust time of 60 minutes is ideal for antimicrobial performance and/or wash-durability thereof. Finally, Experimental Example 3b showed that a curing time of 180 °C is ideal not only for antimicrobial performance but also for hydrophilic and stain release capability, and/or wash-durability thereof.

EXAMPLES FOR THE USE OF THE FINISHED TEXTILE MATERIAL

Hygiene products and other products lOl

Embodiments of the materials according to the invention can be used, e.g., as a hygiene product. The hygiene product comprises at least one layer, preferably at least two layers, more preferably three layers or at least three layers. The one or more layers can comprise, consist, or be formed by a substrate which conveys stain release capability, antimicrobial efficiency, water holding capacity, water absorption time, stain/oil repellency, or water repellency, in particular stain release, absorbing, and/or antimicrobial properties. In exemplary embodiments, the hygiene product comprises one layer, preferably formed by a textile material, and at least a second layer formed by a textile material conveying stain release, absorbing and/or antimicrobial properties. In further embodiments, the hygiene product comprises a further layer of a textile material. The layer, the second layer and/or the further layer of the textile material may comprise or consist of a synthetic fabric or a natural fabric or a blend of both, with or without the addition of a stretch yarn, in particular lycra or spandex. In exemplary embodiments, the textile material comprises polyester, preferably consists of polyester. In other exemplary embodiments, the textile material comprises a blend of polyester and cotton, preferably consists of a blend of polyester and cotton, e.g. about 65% polyester and about 35% cotton.

In exemplary embodiments of the hygiene product, at least one of the surfaces of the further layer is finished with a water-and-oil repellant, optionally including polyurethane (PU). In other exemplary embodiments, the further layer is formed by a material which is a blend of polyester and cotton, e.g. about 65% polyester and about 35% cotton.

In further exemplary embodiments, the hygiene product comprises three layers, wherein two layers are formed by a material conveying stain release, absorbing and/or antimicrobial properties, and the third layer is impermeable to liquids, e.g. the third layer is formed by a substrate finished with a water-and-oil repellant. The layers of a hygiene product may be connected by ultra-sound welding, stitching, gluing or by gluing using fusible interlinings.

The hygiene product can be a sanitary napkin. Further exemplary hygiene products are panty or underwear liners, tampons, nappies, diapers, diaper liners, adult diapers, panties or underwear, bras, or nursing pads. Other exemplary embodiments are a towel, kitchen towel, napkin, handkerchief, face mask, floor cleaning mop, wipe, or substrate used in wound care. As an exemplary embodiment, the hygiene product may be used as a hand sanitizer.

The hygiene product of the invention provides the advantage that due to its stain release properties it can be washed easily at mild conditions, e.g. with water only, optionally using some mild detergent, by hand or in a washing machine at low temperatures, e.g. 30 °C or 40 °C.

The invention will be further described by the following example, which illustrates preferred embodiments without limiting the scope of the invention.

Hygiene product such as sanitary napkin A preferred embodiment of the invention is a sanitary napkin. However, the structure of the product described below can also be used in other hygiene products such as a panty or underwear liner, nappy, diaper, diaper liner, adult diaper, bed pad, or nursing pad.

Layers of the hygiene product

Referring to Fig. 3 and 4, the hygiene product comprises one or more dispersion layers (2, 4) comprising or consisting of a substrate like a textile material. In a preferred embodiment of the hygiene product, the one or more dispersion layers in conjunction have fluid dispersion properties such that if 1 ml of water is dropped onto the dispersion layers, the water is dispersed within 1 sec in a dispersion area having an average diameter of at least 3 cm, preferably at least 4 cm, more preferably at least 4.5 cm, and most preferably at least 5 cm.

The hygiene product also comprises one or more water repellent layers 3, 5, preferably having a water repellency rating of at least 70, preferably at least 80, more preferably at least 90, measured in accordance with AATCC test method 22-2014.

Transportation layer (first layer) IO3

The one or more dispersion layers can comprise a transportation layer 2, a preferred embodiment of which has already been described above as Working Example 1. This transportation layer 2 can be the layer which lies against the skin of the user when the hygiene product is worn by the user. In this case, the transportation layer 2 forms the inner (upper) layer of the hygiene product.

As its name implies, the main purpose of the transportation layer is to allow for quick transportation of fluids to the layer(s) below the transportation layer, and to provide a layer which is kept relatively dry. This can be achieved with a substrate like a textile material with at least 10, preferably at least 15, more preferably at least 25, particularly at least 30, and most preferably at least about 40 holes, per cm². The substrate can have at most 625, preferably at most 300, more preferably at most 100, and most preferably at most about 40 holes, per cm². The size of the holes may be at least 0.02 mm, preferably at least 0.04 mm, more preferably at least 0.06 mm, in average diameter. The size of the holes can be at most 2.0 mm, preferably at most 1.5 mm, more preferably at most 1.0 mm, and most preferably at most 0.08 mm, in average diameter. Such a substrate may be an impression fabric, a knitted, warp knitted, and/or a multifilament fabric. Preferably, the knitted or warp knitted fabric is a knit pique fabric.

The starting material of the transportation layer 2 may comprise at least 95%, preferably at least 97%, more preferably at least 99% of a synthetic fiber, such as polyamide (nylon), or preferably polyester. Synthetic materials are preferred, inter alia, because they can be welded with ultrasound.

In exemplary embodiments, the substrate of the transportation layer 2 has a weight of at least 50 GSM (grams per square meter), preferably at least 80 GSM, more preferably at least 100 GSM, particularly at least 120 GSM, and most preferably at least about 125 GSM. The substrate can have a weight of at most 250 GSM, preferably at most 200 GSM, more preferably at least 170 GSM, particularly at least 150 GSM, and most preferably at most about 125 GSM.

Advantageously, the substrate is equipped with antimicrobial agents. For example, an azole-based compound is adhered to the substrate in an amount of at least 0.05%, preferably at least 0.10%, more preferably at least 0.15%, particularly at least 0.20%, and most preferably at least about 0.25%, and/or in an amount of at most 2.0%, preferably at most 1.5%, more preferably at most 1.0%, particularly at most 0.5%, most preferably at most about 0.25% on weight fabric of the substrate; and/or metal is adhered to the substrate in an amount of at least 0.0005%, preferably at least 0.001%, more preferably at least 0.002%, particularly at least 0.005%, most preferably at least about 0.0085%, and/or in an amount of at most 0.1%, preferably at most 0.05%, more preferably at most 0.03%, particularly at most 0.02%, most preferably at most about 0.085% on weight fabric of the substrate; and/or a quaternary ammonium organosilane compound is adhered to the substrate in an amount of at least 0.01%, preferably at least 0.02%, more preferably at least 0.05%, particularly at least 0.10%, and most preferably at least about 0.14%, and/or in an amount of at most 1.0%, preferably at most 0.75%, more preferably at most 0.5%, particularly at most 0.25%, most preferably at most about 0.14% on weight fabric of the substrate.

Advantageously, hydrophilic and/or stain release agents are adhered to the substrate, with the types and amounts of agents selected as described in the sections above, to accelerate the distribution of fluid in the layer, and to increase its washability.

The antimicrobial agents and/or the hydrophilic agents can be applied to the substrate by the process as described above.

Main Absorption layer(s) (second layer(s))

The one or more dispersion layers can also comprise one or more main absorption layers 4, a preferred embodiment of which has already been described above as Working Example 2. The one or more main absorption layers 4 can be located between the transportation layer 2 and the one or more water repellent layers 3, 5.

As its name implies, the main purpose of the absorption layer(s) is to store as much fluid as possible. The inventors found that it is hardly possibly to increase the water holding capacity of a textile with a re-usable hydrophilic agent by a significant amount. Already the starting material of the absorption layer(s) should therefore exhibit a fluid holding capacity of preferably at least 5 times its weight, more preferably at least 6 times its weight, even more preferably at least 7 times its weight, and most preferably at least 9 times its weight, when tested according to ASTM D7367-14. The inventors found that such a fluid holding capacity can be achieved, e.g., by a polar or preferably terry fleece fabric, or a heat set or heat bonded, spun bonded, melt blown, or preferably needle punch non-woven fabric. The non-woven fabric has preferably fibers with an average diameter of at most 10 microns, preferably at most 6 microns, more preferably at most 3 microns, even more preferably at most 2 microns, and most preferably at most 1.5 microns. The inventors found that the smaller the diameter of the fibers, the larger is the water holding capacity of the fabric.

The substrate may comprise at least 30%, preferably at least 45%, more preferably at least 60%, most preferably at least about 65% viscose. The substrate may comprise at most 100%, preferably at most 75%, more preferably at most 70%, most preferably at most about 65% viscose. The substrate may comprise at least 15%, preferably at least 25%, more preferably at least 30%, most preferably at least about 35% of a synthetic fiber, such as polyamide (nylon) or preferably polyester. The substrate may comprise at most 100%, preferably at most 65%, more preferably at most 40%, most preferably at most about 35% of a synthetic fiber, such as polyamide (nylon) or, preferably, polyester.

During a menstrual cycle, the average quantity of total flow is of approximately 120 ml. On the heaviest days, the quantity of the flow can be up to 45 ml, to which a margin has to be added for other possible fluids such as urine. In a preferred embodiment, the hygiene product has then an absorption capacity in the range of 70-80 ml. Based on a fluid holding capacity of 5 to 9 times the weight of the textile, and on the assumption that the transportation layer 2 will also absorb parts of the fluid, the total weight of the one or more main absorption layers 4 is at least 1 gram, preferably at least 2 grams, more preferably at least 2.5 grams, most preferably at least 3 grams, and/or at most 20 grams, preferably at most 15 grams, more preferably at most 10 grams, even more preferably at most 8 grams, and most preferably at most 6 grams. Given the dimensions of the hygiene product as outlined below, in an exemplary embodiment, one or more of the absorption layers 4 are advantageously made of a fabric of at least 50 GSM, preferably at least 100 GSM, more preferably at least 200, and most preferably at least 300 GSM, and/or of at most 700 GSM, preferably at most 500 GSM, more preferably at most 400, and most preferably at most 300 GSM. 1θ6

In an exemplary embodiment where the hygiene product comprises two main absorption layers 4, one absorption layer is a fabric of at least 50 GSM, preferably at least 100 GSM, more preferably at least 200, and most preferably at least 300 GSM, and/or of at most 500 GSM, preferably at most 400 GSM, more preferably at most 350, and most preferably at most 300 GSM. The second absorption layer is a fabric of at least 50 GSM, preferably at least 100 GSM, more preferably at least 150, and most preferably at least 200 GSM, and/or of at most 500 GSM, preferably at most 400 GSM, more preferably at most 300 GSM, most preferably at most 200 GSM.

Advantageously, the substrate is equipped with antimicrobial agents. For example, an azole-based compound is adhered to the substrate in an amount of at least 0.10%, preferably at least 0.20%, more preferably at least 0.50%, particularly at least 1.0%, and most preferably at least about 1.25%, and/or in an amount of at most 3.0%, preferably at most 2.5%, more preferably at most 2.0%, particularly at most 1.75%, most preferably at most about 1.25% on weight fabric of the substrate; and/or a metal is adhered to the substrate in an amount of at least 0.0001%, preferably at least 0.0002%, more preferably at least 0.0005%, particularly at least o.ooio%, most preferably at least about 0.0017%, and/or in an amount of at most 0.05%, preferably at most 0.02%, more preferably at most 0.01%, particularly at most 0.005%, most preferably at most about 0.0017% on weight fabric of the substrate; and/or polyhexamethylene biguanide is adhered to the substrate in an amount of at least 0.05%, preferably at least 0.1%, more preferably at least 0.2%, particularly at least 0.3%, and most preferably at least about 0.4%, and/or in an amount of at most 2.0%, preferably at most 1.5%, more preferably at most 1.0%, particularly at most 0.8%, most preferably at most about 0.4% on weight fabric of the substrate; and/or polyglucosamine is adhered to the substrate in an amount of the at least 0.05%, preferably at least 0.10%, more preferably at least 0.15%, particularly at least 0.20%, and most preferably at least about 0.3%, and/or in an amount of at most 2.0%, preferably at most 1.5%, more preferably at most 1.0%, particularly at most 0.6%, most preferably at most about 0.3% on weight fabric of the substrate.

Quaternary ammonium organosilane is less preferred for treating the main absorption layer due to its hydrophobic properties. Therefore, the use of at most only small or very small amounts of quaternary ammonium organosilane is preferred. Quaternary ammonium organosilane compounds may be adhered to the substrate in an amount of at most 1.5%, preferably at most 1.0%, more preferably at most 0.5%, in particular at most 0.3%, and most preferably at most about 0.15% on weight fabric of the substrate. The quaternary ammonium organosilane compounds are adhered to the substrate in an amount of typically at least 0.01%, preferably at least 0.02%, more preferably at least 0.05%, particularly at least 0.1%, and most preferably at least about 0.15% on weight fabric of the substrate.

Advantageously, hydrophilic and/or stain release agents are adhered to the substrate, with the types and amounts of agents selected as described in the sections above, to accelerate the absorption of fluid in the layer, and to increase its washability. The antimicrobial agents and/or the hydrophilic agents can be applied to the substrate by the process as described above.

Water repellant layer (fourth layer)

Water repellant layer 3 is an outer layer preventing leakage of liquids or fluids. The material suitable as water repellant layer is not subject to any restrictions and can be any textile or non-textile material known in the art for that purpose. In a preferred embodiment, water repellent layer 3 is or comprises a textile material produced using the above-described process, an example of which has already been described above as Working Example 3.

In preferred embodiments, the textile material of the water repellant layer 3 is woven and/or a microfiber, to give stability to the hygiene product. At least 95%, preferably at least 97%, more preferably at least 99%, of the textile material may consist of polyester, nylon, polyamide, polypropylene, or any other synthetic textile substrate. Synthetic textile materials are preferred, because they can be welded with ultrasound, they have a higher breaking strength, and they are easier to be made water-repellent than natural textiles.

The textile material may have a weight of at least 50 GSM (grams per square meter), preferably at least 80 GSM, more preferably at least 110 GSM, and most preferably at least about 125 GSM. The textile material may have a weight of at most 250 GSM, preferably at most 200 GSM, more preferably at least 150 GSM, and most preferably at most about 125 GSM. 1θ8

Advantageously, the textile material is equipped with antimicrobial agents. For example, an azole-based compound is adhered to the textile material in an amount of at least 0.1%, preferably at least 0.2%, more preferably at least 0.3%, particularly at least 0.4%, and most preferably at least about 0.5%, and/or in an amount of at most 2.0%, preferably at most 1.5%, more preferably at most 1.0%, particularly at most 0.75%, most preferably at most about 0.50% on weight fabric of the textile material; and/or a metal is adhered to the textile material in an amount of at least 0.0001%, preferably at least 0.0002%, more preferably at least 0.0005%, particularly at least o.ooio%, most preferably at least about 0.0017%, and/or in an amount of at most 0.05%, preferably at most 0.02%, more preferably at most 0.01%, particularly at most 0.005%, most preferably at most about 0.0017% on weight fabric of the textile material; and/or a quaternary ammonium organosilane compound is adhered to the textile material in an amount of at least 0.1%, preferably at least 0.2%, more preferably at least 0.3%, particularly at least 0.4%, and most preferably at least about 0.72%, and/or in an amount of at most 2.0%, preferably at most 1.5%, more preferably at most 1.3%, particularly at most 1.0%, most preferably at most about 0.72% on weight fabric of the textile material.

The textile material of the water repellent layer 3 has preferably a water repellency rating of at least 80, preferably at least 90, more preferably 100, measured in accordance with the AATCC test method 22-2014. Furthermore, the textile material of the water repellant layer should exhibit a stain/oil repellency rating, measured in accordance with AATCC test method 118-2013, of at least grade 4, preferably at least grade 5, more preferably at least grade 6, particularly at least grade 6, and most preferably at least grade 7.

Such repellency ratings can be achieved by adhering one or more water repellent agents like C6- or C8-fluorocarbon and/or polyurethane (PU) to the textile material. The total amount of the one or more water repellency agents adhered to the textile material can be at least 0.2%, preferably at least 0.5%, more preferably at least 1.0%, particularly at least 1.5%, and most preferably at least about 2.0%, and/ or at most 5.0%, preferably at most 4.0%, more preferably at most 3.0%, particularly at most 2.5%, most preferably at most about 2.0% on weight fabric of the textile material. The antimicrobial agents and/or water repellency agents can be applied to the textile material by the process as described above in the context of Working Example 3, in which the hydrophilic/stain release liquor application process is replaced by a water repellency liquor application process like a coating and/or a padding process, wherein the liquor comprises the one or more water repellency agents.

Water impermeable layer (third layer)

The inventors found that the water repellent outer layer (layer 4) is preferably not made of full plastic because in this case, it does not feel well on the skin. Furthermore, it may change in shape when washed. For this reason, the outer layer is preferably a textile.

However, it is difficult to make textiles fully waterproof. Even if expensive technologies like Gore Tex are used, eventually liquid will trickle though. Furthermore, even where such a textile like a woven fabric is treated with a composition as described above to make it water repellent, blood or other stains remain on the fabric after use which cannot easily be washed out.

Therefore, in a preferred embodiment of the hygiene product, a water impermeable layer 5 is placed between the dispersion layers and the outer layer. Although the water impermeable layer may be made of or comprise a layer of plastic, it will not

significantly change its shape when washed because it is protected and is welded into the seam and held together with the other layers, so it and preferably cannot move. The water impermeable layer can be air permeable, which increases the wearing comfort, but is more expensive. The water impermeable layer should be very thin and soft, in order to provide good comfort to the user.

This water impermeable layer may comprise or consist of a plastic material, in particular polypropylene (PP), polyethersulfon (PES), polyamide (PA), or preferably polyvinyl chloride (PVC). The material should not smell. The average weight of the water impermeable layer is then preferably at least 30 GSM, preferably at least 50 GSM, more preferably at least 60 GSM, particularly at least 70 GSM, and most preferably at least 85 GSM, and/or preferably at most 300 GSM, preferably at most 200 GSM, more preferably at most 150 GSM, particularly at most 125 GSM, and preferably at most 85 GSM. The average thickness of the water impermeable layer is preferably at least 0.03 mm, preferably at least 0.05 mm, more preferably at least 0.07 mm, particularly at least 0.08 mm, and most preferably at least about 0.1 mm and/or at HO most 0.4 mm, preferably at most 0.3 mm, more preferably at most 0.2 mm, particularly at most 0.15 mm, and most preferably at most 0.1 mm.

In an alternative embodiment, the water impermeable layer 5 comprises a substrate such as bonded, preferably spun bonded non-woven textile fabric or paper, the substrate being coated by a water impermeable film. This water impermeable film 5 can be made of or comprise plastic, preferably polyurethane CPU). The water impermeable film can be located on the inner (upper) side of the water impermeable layer 5, with the substrate being located on the outer (lower) side of the water impermeable layer 5, or the water impermeable film can be sandwiched between two layers of substrate. In the latter case, the inner substrate layer of the sandwich may have a brown color so that blood stains which cannot be washed out are less visible. Even though paper is used in this embodiment, the water impermeable layer is washable because of the coating (laminate), and because the water impermeable layer is protected by the outer layers of the hygiene product. In exemplary embodiments of the hygiene product, the weight of the water impermeable layer 5 is at least 20 GSM, preferably at least 30 GSM, more preferably at least 40 GSM, most preferably at least 50 GSM, and/or at most 150 GSM, preferably at most 100 GSM, more preferably at most 75 GSM, most preferably at most 50 GSM.

Seam

The hygiene product can have a seam 1 which is located at one or more edges of the hygiene product, where one or more layers of the hygiene product are directly or indirectly attached together. The layers may be attached together by stitching, gluing, or preferably by ultrasonic welding. The seam 1 can have a width of at least 2 millimeters, preferably at least 4 millimeters, more preferably at least 6 millimeters, even more preferably at least 8 millimeters, most preferably at least 1 centimeter, and/or of at most 2 centimeters, preferably at most 1.5 centimeters, more preferably at most 1.3 centimeters, most preferably at most 1 centimeter.

In a preferred embodiment of the hygiene product, the seam 1 is located on one or preferably both longitudinal edges of the hygiene product, more preferably on all edges of the hygiene product. The layers attached together by the seam 1 can be at least the inner 2 and/or the outer layer 3, so that all layers of the hygiene product are held together. The water impermeable layer 5 may be among the layers attached together by the seam, in order to fix the impermeable layer 5 in place and to ensure that no fluid can trickle through to the outer layer even in the area of the seam. The one or more or preferably all main absorption layers 4 are preferably not among the layers attached together by the seam 1, in order to avoid leakage by capillarity through the seam 1 and also to ease the attachment at the level of the seam 1, especially when the seam 1 is made by ultrasonic welding.

In an exemplary embodiment, where the seam 1 is located at least on both longitudinal edges of the hygiene product, in order to ensure the stability of the one or more absorption layers 4, and to make the best use of the space, the width of one or more or preferably all of the absorption layers 4 is substantially equal to the respective distance between the inner edges of the seams 1 on the longitudinal sides, along at least 50%, preferably at least 75%, more preferably at least 90%, most preferably 100% of the of the length of the respective absorption layer. Substantially equal here means plus/minus 2 centimeters, preferably plus/minus 1.5 centimeters, more preferably plus/minus 1 centimeter, even more preferably plus/ minus 5 millimeters, and most preferably plus/minus 3 millimeters. When realized by stitching, the seam 1 of the hygiene product may not present the best protection against leaks. Indeed, the needle creates holes through which blood can leak, especially when an impermeable layer 5 as described above is used. Moreover, leaks can also result from the stitching thread conducting fluids on the outer side of the hygiene product. When the seam 1 of the hygiene product is made with glue, the seam may loosen after some wash cycles, as the glue can come out of the seam 1. Moreover, as it comes out, the glue can make the edges of the hygiene product abrasive. Hence, in the preferred embodiments, the seam is made by ultrasonic welding. A preferred sonotrode for such welding is described further below.

Shape of the hygiene product and fixing means

The hygiene product can have a functional zone 10 as delimited by the dotted line in Fig. 3 and Fig. 6., through which it absorbs fluids. In an exemplary embodiment of the hygiene product, the functional zone has a maximum, minimum and/or average width of at least 3 cm, preferably at least 4 cm, most preferably at least 6 cm, and/or of at most 20, preferably at most 15 cm, more preferably at most 10 cm, most preferably at most 7.5 cm. The functional zone can have a maximum, minimum and/or average length of at least 10 cm, preferably at least 15 cm, more preferably at least 20 cm, most preferably at least 23 cm, and/or of at most 50 cm, preferably at most 40 cm, more preferably at most 35cm, most preferably at most 30 cm.

In a preferred embodiment of the hygiene product, the water repellent layer 3 is folded on one or preferably both longitudinal edges of the hygiene product such that the water repellent layer 3 covers the one or more dispersion layers in an area of the seam, thereby preventing leakage on the edges of the hygiene product, in particular through the transportation layer 2. Also the water impermeable layer 5 can be folded on one or preferably both longitudinal edges of the hygiene product such that the water impermeable layer covers the one or more dispersion layers in an area of the seam 1, to further improve the protection against leakage on the edges, as shown in Fig. 5.

The hygiene product can comprise fixing means to attach the hygiene product to a textile, in particular an undergarment, or to the user.

In one embodiment as shown in Fig. 6 and Fig. 7, the fixing means are wings 6 which can be wrapped around the undergarment of the user and attached to each other, preferably by a snap fastener 7. These wings 6 can be an extension of the outer layer 3, and/or can be part of the outer layer. Where the outer layer is folded on the longitudinal edges to cover the dispersion layers in an area of the seam, the wings are obtained by folding the outer layer once more and on itself, at the level of the seam 1.

This kind of fixing means is particularly suitable where the hygiene product is a pad. Such a pad can have a total minimum, maximum and/ or average length of at least 10 cm, preferably at least 20 cm, more preferably at least 25 cm, most preferably at least 28 cm, and of at most 60 cm, preferably at most 40 cm, more preferably at most 35 cm, most preferably at most 31,5 cm. The minimum, maximum and/or average width of the pad can be of at least 4 cm, preferably at least 6 cm, more preferably at least 8 cm, most preferably at least 8,7 cm, and/or of at most 20 cm, preferably at most 12 cm, more preferably at most 9 cm, most preferably at most 8,7 cm. The fixing means (e.g. the wings) are not considered to be part of the hygiene product for determining the width and/or length of the hygiene product. The functional zone of this pad can have a minimum, maximum and/or average width of at least 3 cm, preferably at least 5 cm, more preferably at least 6 cm, most preferably at least 7 cm, and/or a of at most 20 cm, preferably at most 15 cm, more preferably at most 10 cm, most preferably at most 7 cm. The functional zone of this pad can have a minimum, maximum and/or average length of at least 10 cm, preferably at least 20 cm, more preferably at least 25 cm, most preferably at least 27 cm, and/or of at most 60 cm, preferably at most 40 cm, more preferably at most 35 cm, most preferably at most 30 cm.

In another embodiment of the hygiene product, shown in Fig. 8 and 9, the fixing means are one or more ribbons 8 by which the hygiene product can be fixed to the user, for example by stretching them around the waist of the user. Preferably, the ribbons 8 are made of an elastic material, more preferably rubber. They can be attached at each of the opposing edges of the longitudinal ends of the hygiene product, preferably at an extension of the outer layer 3. Preferably, the outer layer 3 of the hygiene product is folded at one or more preferably both longitudinal ends, and attached to itself 9, leaving a passing through which the one or more ribbons are disposed as shown in Fig. 9.

This kind of fixing means is particularly suitable for sanitary napkins as shown in Fig. 8 and Fig. 10. Such a sanitary napkin can have a minimum, maximum and/or average length of at least 20 cm, preferably at least 40 cm, more preferably at least 50 cm, most preferably at least 56 cm, and/or of at 100 most cm, preferably at most 80 cm, more preferably at most 70 cm, most preferably at most 61 cm. The minimum, maximum and/or average width of such a sanitary napkin may be of at least 4 cm, preferably at least 5 cm, more preferably at least 7 cm, most preferably at least 8 cm, and/or of at most 25 cm, preferably at most 15 cm, more preferably at most 10 cm, most preferably at most 9 cm. The fixing means (e.g. the ribbons) are not considered to be part of the sanitary napkin for determining the width and/or length of the sanitary napkin. The functional zone of such a sanitary napkin can have a minimum, maximum and/or average width of at least 3 cm, preferably at least 4 cm, more preferably at least 5 cm, most preferably at least 6 cm, and/or of at most 24 cm, preferably at most 14 cm, more preferably at most 9 cm, most preferably at most 7 cm. The minimum, maximum and/or average length of the functional zone can be of at least 10 cm, preferably at least 15 cm, more preferably at least 20 cm, most preferably at least 23 cm, and/or of at most 60 cm, preferably at most 40 cm, more preferably at most 35 cm, most preferably at most 30 cm. Sonotrode:

The inventors developed a sonotrode for use in the process of attaching the various layers of the hygiene product together at the level of the seam, by ultrasonic welding.

Such a sonotrode comprises protrusions which emit the energy of the sonotrode to the textile. The protrusions are typically arranged in repeating patterns, e.g. in lines, or preferably in grids formed by lines. In preferred embodiments of the hygiene product, several layers have to be welded together, which requires a high level of energy. When using some prior art sonotrodes, some of the layers may melt during the binding and become brittle, resulting again in an increased risk of leaks at the level of the seam. With other prior art sonotrodes, the energy imparted to the layers may not be large enough so that the seam created by ultrasonic welding cannot withstand a satisfying number of wash cycles. In fact, the seam of washable hygiene products must be much stronger than that of disposables because disposables are not concerned about washing, and oftentimes not concerned about small leakages due to a shorter use period. Besides, wearer comfort is essential, so that the seams should not only be leak proof and wash durable but also soft and pliable, and should not cause any chafing on the skin.

The inventors found that this problem can be reduced or solved by, first, reducing the distance between the lines formed by the protrusions, thereby increasing the amount of protrusions per unit of area. This distance, being calculated between the centers of the tops of two consecutive protrusions, can be of at least of 1 mm, preferably of at least 1,5 mm, more preferably of at least 1,8 mm and most preferably of at least of 2mm, and/or of at most of 4 mm, preferably of at most 3 mm, more preferably of at most 2.5 mm and most preferably of at most of 2 mm. Furthermore, since the protrusions of some the prior art sonotrodes have a relatively large width as shown in Fig. 11, showing a cross-sectional view of the prior art sonotrodes, they cannot deliver the required amounts of energy. The attachment of a multilayer seam can thus prove difficult and result in weakness in the seam, with in an increased risk of leaks at the level of the seam. For this reason, and to get a perfect weld with the right amount of overlap, in an embodiment of the invention, a sonotrode is used where one or preferably all the sides of the protrusions form with the vertical direction an angle Θ of at least 35⁰, preferably at least 40 °, more preferably at least 45⁰ and most preferably of at least 48.2°, and/or of at most 6o°, preferably of at most 55⁰, more preferably of at most 50⁰ and most preferably of at most 48.2⁰. Cross section of such protrusions are shown in Fig. 12, 13, 14, 16, and 17. Preferably, the protrusion, when viewed from the top, has a rectangular or even more preferably quadratic layout. In the latter case, if all sides have a side angle as defined above, the protrusions have the shape of pyramids, as is shown in the enlarged view of the protrusions of the sonotrode of Fig. 15. When the sonotrodes have protrusions with such side angles, as shown in Fig. 12, the tops of the protrusion may be sharp, and in the case of a pyramid even be reduced to a point such as point a. With such pointed or sharp protrusions, the ultrasonic wave is cut and does not diffuse evenly around the protrusion resulting in failures to properly attach the various layers of the hygiene products. Again, some of the layers may melt during the binding and become brittle. For these reasons, in a preferred embodiment of the sonotrode, shown e.g. in Fig. 13 to 17, the tops of the protrusions have a width Δ of at least 0.1 mm, preferably at least 0.2 mm, more preferably at least 0.25 mm and most preferably of at least 0.3 mm, and/or of at most 0.5 mm, preferably at most 0.4 mm, more preferably at most 0.35 mm and most preferably of at most 0.3 mm. In the case of pyramids, the pointed top of the pyramids looks as if it was cut off.

However, the inventors found that even if the sharp or pointed top of the protrusions is cut off, the ultrasonic wave may still not diffuse evenly, resulting in failures to properly attach the various layers of the hygiene products. Therefore, the inventors developed a novel sonotrode, where the top and/ or the transitions between the sides and the top of protrusions is rounded and/or has no edges, in particular no sharp edges, as shown in Fig. 14. Preferably, the diameter of the circle defining the curvature on the top is equal to or greater than the distance between the centres of the protrusions, and/or not greater than 4 times the distance between the centres of the protrusions, preferably not greater than 3 times that distance, more preferably not more than 2 time that distance. The angle of the slope of a protrusion, in particular in the area of the top and/or the transitions between the sides and the top of the protrusion, preferably does not change by more than 30⁰, or preferably not more than 20⁰, more preferably not more than 15⁰, even more preferably not more than io°, particularly not more than 8°, and most preferably not more than 6° within a distance of 0.01 mm. Mathematically speaking, ll6

the curve describing the cross section of the protrusion does preferably not comprise a removable discontinuity in the area of the top of the protrusion or in a transition between a side and the top of the protrusion.

In the case where the top and/or the transitions between the sides and the top of protrusions are rounded, the width Δ of the top is defined as the distance between the two points b where the slope of the sides of the protrusion reaches an angle with the horizontal direction of at most 25⁰, preferably of at most 20⁰, more preferably at most 15⁰ and most preferably of at most io° .

In an embodiment of the sonotrode the protrusions have a height H of at most 1,5 mm, preferably at most 1,2 mm, more preferably of at most 0,9 mm, most preferably of at most 0,7 mm, and/or of at least 0,3 mm, preferably at least 0,5 mm, more preferably of at least 0,6 mm, most preferably of at least 0,7 mm.

The protrusions of the sonotrode can be arranged on a roller, or preferably on a plane, e.g. a flat blade as shown in Fig. 15. Fig. 16 shows an enlarged view on a section of the longitudinal side of the sonotrode of Fig. 15, with the angles of the sides of the protrusions indicated, and the width of the protrusions (2 mm), the height of the protrusions (0.7 mm), and the width of the top of the protrusions. Unlike in the preferred embodiment, the top of the protrusions shown in Fig. 16 (and also in Fig. 15 and Fig. 17) is not rounded, and the transitions between the sides and the top of protrusions is not rounded and has sharp edges.

Finally, the inventors found that the number of lines of protrusions running in the longitudinal direction of the sonotrode has a great impact on the energy distribution. Prior art sonotrodes have a length of about 4 to 6 centimeters. However, for welding the seam of reusable hygiene products, longer sonotrodes of 20 or 30 cm or even more are advantageous, so that a seam can be welded in one pass. One problem with such longer sonotrodes is that it is difficult to obtain the same amount of energy in every point of the sonotrode. In fact, it is highly desirable to have approximately the same amount of frequency or energy at the ends of the sonotrode as in the center. With four or more lines of protrusions in the longitudinal direction the energy imparted on the layers oftentimes proved to be too low so that the welded hygiene product could not withstand a suf icient amount of wash cycles. The inventors found that the use of two lines yields acceptable results, but the energy distribution is uneven, which has the effect that at some points the seam is not strong enough, and at other points too much energy is imparted so that the seam due to the melting of the layers is not smooth or could be penetrated by liquids. Optimum results are achieved with three lines. Fig. 17 shows an enlarged view on the front side of the sonotrode of Fig. 15. As can be seen in Fig. 17, this sonotrode has three lines of protrusions running in the longitudinal direction, as is preferred. In an exemplary embodiment, the parameters of the ultrasonic welding are the following:

Fig. 18 to 22 show various intermediate products of a process of manufacturing a sanitary napkin according to an embodiment of the invention. However, the process can also be used for manufacturing other hygiene products as described above comprising a top layer as described above, one or more main absorption layers as described above, and a bottom layer as described above, in particular a panty or underwear liner, nappy, diaper, diaper liner, adult diaper, bed pad, or nursing pad.

As shown in Fig. 18, the top (inner) or transportation layer (larger rectangle) is preferably attached to the one or more main absorption layers (smaller rectangle) in a first step. Preferably, the attachment of the one or more absorption layers to the top layer is by way of ultrasonic welding. For example, six welding spots are shown as circles in Fig. 18. The welding spots have preferably a length of at most 10 cm, or at most 8 cm, more preferably at most 6 cm, even more preferably at most 4 cm, particularly at mot 2 cm, and most preferably at most 1 cm and/or a width (or diameter, where the welding spots are round) of at most 3 cm, preferably at most 2 cm, more preferably at most 1.5 cm, and most preferably at most 1 cm. ll8

Where the one or more absorption layers of the hygiene product have two longitudinal sides and two front sides, each of the longitudinal sides being at least twice as long as each of the front sides, the one or more absorption layers are preferably attached to the top layer at least at two different areas on each of the longitudinal sides. Furthermore, the distance between any point of attachment of the one or more absorption layers to the top layer at a longitudinal side and the edge of the longitudinal side is preferably is at most 3 cm, or preferably at most 2.5 cm, more preferably at most 2 cm, and most preferably at most 1.5 cm. Where the one or more absorption layers have four sides, the one or more absorption layers are preferably attached to the top layer on each of the four sides. Attaching the top layer to the one or more absorption layers has two advantages: first of all, even in the preferred case where the absorption layer do not form part of the seam as described below, the are still fixed (to the top layer) so that they do not move during use or washing. Secondly, attaching the top layer and the one or more absorption layers together prior to placing them against the bottom layer makes the manufacturing process easier.

An example of the shape of the bottom layer is shown in Fig. 19. The top layer and the one or more main absorption layers are brought against the bottom layer such that the one or more main absorption layers are placed between the top layer and the bottom layer. A water impermeable layer as described above can placed between the bottom layer and the one or more absorption layers.

At least parts of the longitudinal sides of the bottom layer are then folded such that the folded parts of the bottom layer cover the top layer on the top side as shown in Fig. 20. Where applicable at least parts of the longitudinal sides of the water impermeable layer may also be folded such that folded parts of the water impermeable layer are located between the top side of the top layer and the folded parts of the bottom layer.

Prior to creating a seam, the folded part of the bottom layer, the top layer and the part of the bottom layer located at the bottom and where applicable the water impermeable layer are preferably attached together by ultrasonic welding at two or more spots on each longitudinal side of the bottom layer. These spots are shown as eight circles at the longitudinal edges of the product in Fig. 20. In a next step, a seam is created where the folded part of the bottom layer, the top layer and the part of the bottom layer located at the bottom and where applicable the water impermeable layer are attached together by ultrasonic welding. Such a seem is indicated as the two horizontal dotted areas at the longitudinal edges of the product in Fig. 21. Preferably, the seam spans at least 70%, or preferably at least 80%, more preferably at least 90%, and most preferably about 100% of the longitudinal sides of the top layer. A seam can also be created where the front sides of the top layer and the part of the bottom layer located at the bottom and where applicable the water impermeable layer are attached together by ultrasonic welding. Such a seem is indicated as the two vertical dotted areas at the longitudinal edges of the product in Fig. 21. The one or more main absorption layers are preferably not among the layers attached together by the seams. The sonotrode used for creating the seam comprises protrusions arranged in two or preferably three longitudinal lines on a plane as described above, the plane having at least the length of the seam.

The ends of the hygiene product are then attached to each other, e.g. sewn with double needle stitch as shown in Fig. 22, to form a passageway through which one or more ribbons can be passed, which attach the hygiene product by a loop to the waist of the user. Such a ribbon is shown in Fig 23. It comprises preferably means for adjusting the length of the loop around the waist of the user, e.g. the adjuster pointed to by the rightmost arrow in Fig. 23. It may also comprise means for opening and closing the loop, e.g. the plastic buckle pointed to by the leftmost arrow in Fig. 24. The arrow in the center in Fig. 23 points to the material of the ribbon, which is preferably elastic.

The fully assembled sanitary napkin is shown in Fig. 24.

5

120

Annex: Tables I to XIV

Table I Substrate: 65% Viscose + 35% Polyester Fabric End Product: Sanitary Napkin Layer 2

Construction: Nonwoven 500 GSM

Process Recipe

Test results Silvadur 930 10 pl

Test Test standards Untreated Treated After 25 washes Bioguard PPZ 50 gpl

Step 1: Pad

Absorbency AATCC 79:2014 7 sec Instant instant Texgurad 20 20 gpL

Vertical wicking AATCC 197:2013 0,27 mm/sec 0,46 mm /sec 0,34 mm/sec Chitosan 102 20 gpl

Horizontal wicking AATCC 198:2013 15,27 mm2/$ec 20,47 mm2/sec 19,15 mm2/sec

Water repelbcy AATCC 22 0 0 0 Step 2: Pad Hydrosil 100 gpL

Oil repellency AATCC 130 0 0 0

Stain release property AATCC 130 2 5 5

Water holding capacity ASTM D 7367 9 times 9 times 9 times

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can, Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

lO min 3,54 3,52 3,51 3,53 3,51 3,52

30 min. 4,21 4,23 4,21 4,2 4,23 4,21

60 min. 5,35 5,36 5,37 5,33 5,34 5,34

24 hr. 6,11 6,13 6,13 6,13 6,12 6,11

AATCC 2149:10

10 min 3,54 3,53 3,54 3,53 3,55 3,54

30 min. 4,25 4,26 4,24 4,23 4,25 4,24

60 min. 5,23 5,26 5,25 5,24 5,25 5,23

24 hr. 6,09 6,05 6,06 6,04 6,09

Antimicrobial

properties

(Log reduction)

AATCC 100:2012 after 25 washes

10 min 3,15 3,17 3,15 3,16 3,17 3,2

30 min. 4,09 4,05 4,07 4,07 4,08 4,07

60 min. 5,11 5,13 5,12 5,11 5,12 5,34

24 hr. 5,56 5,54 5,53 5,54 5,53 5,55

AATCC 2149:10 a ter 25 washes

10 min 3,11 3,14 3,12 3,14 3,12 3,13

30 min. 4,02 4 4,02 4 4,01 4

60 min. 4,97 4,96 4,95 4,97 4,98 4,96

24 hr. 5,53 5,52 5,51 5,5 5,53 5,52

Control 24 hr. 0 0 0 0 0 0

Table II Substrate: 100% Polyester End Product: Sanitary Napkin Layer 4

Construction: Od x 150d / 144 x 76 125 GSM

Process Recipe

Test results Si^'lvadur 930 n

Test Test standards Untreated Treated After 25 washes Bioguard PPZ 11

Step 1: Exhaust

Absorbency AATCC 79:2014 8 sec 0 0 AEM 5772 IX

Vertical wicking AATCC 197:2013 0,21 mm/sec 0 mm/sec 0 mm /sec

Horizontal wicking AATCC 198:2013 25 mm2/sec 0 mm2/sec 0 mm2/sec Step 2: Coat PU coat 500 gpl

Water repellenc AATCC 22 0 100 90 Step 3: Pad Globe WP 100 gpl

Oil repellency AATCC 130 0 7 5

Stain release property AATCC 130 1 5 4

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

lO min 3,45 3,43 3,42 3,45 3,42 3,41

30 min. 4,24 4,25 4,26 4,24 4,23 4,24

60 min. 4,78 4,79 4,78 4,77 4,76 4,79

24 hr. 5,78 5,67 5,79 5,74 5,75 5,76

AATCC 2149:10

10 min 3,33 3,34 3,34 3,42 3,42 3,41

30 min, 4,2 4,2 4,19 4,17 4,2 4,21

60 min. 5,09 5,06 5,07 5,08 5,05 5,07

24 hr. 5,67 5,65 5,64 5,67 5,65 5,64

Antimicrobial

properties

(Log reduction)

AATCC 100:2012 after 25 washes

10 min 3,13 3,12 3,15 3,17 3,14 3,15

30 min. 4,11 4,12 4,13 4,14 4,15 4,13

60 min, 4,56 4,52 4,53 4,53 4,52 4,51

24 hr. 5,14 5,12 5,1 5,09 5,12 5,13

AATCC 2149:10 a ter 25 washes

10 min 3,05 3,06 3,08 3,05 3,06 3,05

30 min, 4,1 4,11 4,12 4,13 4,13 4,11

60 min. 4,45 4,43 4,42 4,45 4,34 4,37

24 hr. 5,04 5,02 5,08 5 5,04 5,05

Control 24 hr. 0 0 0 0 0 0

Table III Substrate: 100% Cotton Popline

Process Recipe [dosage, ¾owf

Exhaust Texguard 20 | 6

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can, Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 2,09 2,04 2,04 2,11 0,56 0,53 properties

30 min. 2,35 2,34 2,32 2,42 0,89 0,91 (Log reduction)

60 min. 2,56 2,46 2,49 2,53 1,21 1,32

24 nr. 3,21 3,24 3,1 3,22 1,53 1,59

Control 24 hr, 0 0 0 0 0 0

Table IV AA

Table IV AB

Substrate: 100% Cotton Poptine

Process Recipe dosage, Stowf

Exhaust Bioguard PPZ 6

E.coii Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 0,98 0,95 0,89 0,83 2,13 2,23 properties

30 min. 1,02 1,03 1,06 1,06 2,45 2,43 (Log reduction)

60 min. 1,11 1,13 1,11 1,1 2,51 2,54

24 r. 1,34 1,37 1,34 1,31 3,47 3,45

Control 24 hr. 0 0 0 0 0 0

Table IV AC

Table IV BA

2017/050035

125

Table IV BB

Table IV BC

Substrate: 100% Cotton Po[ )line

Process Recipe dosage, ¾o f

Texguard 20 3

Exhaust

Silvadur 930 3

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 2,17 2,19 2,21 2,18 0,67 0,76 properties

30 min. 2,39 2,42 2,43 2,47 0,99 1,06 (Log reduction)

60 min. 2,64 2,63 2,6 2,71 1,24 1,39

24 nr. 3,23 3,32 3,26 3,27 1,74 1,78

Control 24 nr. 0 0 0 0 0 0

Table V AA

Table VAB

Substrate: 100% Cotton Poptine

Process Recipe dosage, ¾owf

Silvadur 930 3

Exhaust

Bioguard PPZ 3

Exoli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp, Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

lO min 2,15 2,18 2,19 2,17 2,21 2,29 properties

30 min. 2,31 2,35 2,36 2,35 2,73 2,57 (Log reduction)

60 min. 2,41 2,46 2,56 2,53 2,61 2,64

24 hr. 3,23 3,3 3,21 3,24 3,53 3,42

Control 24 hr. 0 0 0 0 0 0

Table VAC

Table V BA

Substrate: 100% Polyester Chiffon

Process Recipe dosage, ¾owf

Silvadur 930 3

Exhaust

Bioguard PPZ 3

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 2,74 2,73 2,67 2,65 2,15 2,15 properties

30 min. 2,83 2,84 2,8 2,8 2,34 2,43 (Log reduction)

60 min. 3,43 3,42 3,43 3,42 2,64 2,67

24 dr. 3,54 3,54 3,55 3,58 2,89 2,91

Control 24 hr. 0 0 0 0 0 0

Table V BB

Table V BC

Substrate: 100% Cotton Popline

Process Recipe dosage, ¾owf

Texguard 20 2

Exhaust Silvadur 930 2

Bioguard PPZ 2

Exoli Sty.aureus Pseu. aeruginosa Sal. enterica Can, Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 3 3,2 3,1 3,2 3,5 3,6 properties

30 min. 3,45 3,42 3,47 3,43 4,1 4,3 (Log reduction)

60 min. 3,89 3,91 3,92 3,91 4,45 4,65

24 hr. 4,1 4,2 4 4,1 4,68 4,71

Control 24 nr. 0 0 0 0 0 0

Table VI A

Table VI B

Substrate: 100% Cotton Popline

Test results Units Process Recipe

Test Test standards Untreated Treated Texguard 20 3¾

Absorbency AATCC 79:2014 3 sec 3 sec Step 1: Exhaust Silvadur 930 IX

Vertical wicking AATCC 197:2013 0,64 0,64 mm/sec Bioguard PPZ 2*

Horizontal wicking AATCC 198:2013 6,05 6,06 i /sec

Oil repellency AATCC 118 0 0

Stain release property AATCC 130 1 1

E. co ^" Sty.aureus Pseu. aeruginosa Sal, enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial properties lO min 3,4 3,1 3,2 3,2 3,1 3,2 (Log reduction) 30 min. 4,1 3,5 4,2 4,5 4,2 4,2

60 min. 4,7 4,2 4,3 4,7 4,6 4,1

24 hr. 5,3 5,2 5,3 5,7 5,3 5,2

Control 24 hr. 0 0 0 0 0 0

Table VII A

Substrate: 100% Polyester Chiffon

Test results Units Process Recipe

Test Test standards Untreated Treated Silvadur 930 5X

Absorbency AATCC 79:2014 8 sec 8 sec Step 1: Exhaust Bioguard PPZ 3¾

Vertical wicking AATCC 197:2013 0,168 0,168 mm/sec AEM5772 0,1%

Horizontal wicking AATCC 198:2013 5 5 mn /sec

Oil repellency AATCC 118 0 0

Stain release property AATCC 130 1 1

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial properties 10 min 3,21 3,3 3,2 3,4 3,3 3,1 (Log reduction) 30 min, 3,73 3,94 4,31 4,3 4,25 4,45

60 min. 4,5 4,56 4,62 4,1 4,31 4,56

24 hr. 4,7 4,7 5,3 5,4 5,2 5

Control 24 hr. 0 0 0 0 0 0

Table VII

Table VIII AA

Table VIII AB Substrate: 100% Cotton Popline

Test results Units Process Recipe

Test Test standards Untreated Treated Texguard 20 3¾

Absorbency AATCC 79:2014 3 sec instant Step 1: Exhaust Silvadur 930 U

Vertical wicking AATCC 197:2013 0,64 0,71 mm/sec Bioguard PPZ 3¾

Horizontal wicking AATCC 198:2013 6,05 60 mm'/sec

Oil repellency AATCC 118 0 0 Step 2: Pad Hydrosit 70 pl

Stain release property AATCC 130 0 5

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp, Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 3,15 2,82 2,89 3,05 2,89 2,87 properties

30 min. 3,6 3,2 3,5 4,2 3,56 3,67 (Log reduction)

60 min. 4,1 3,8 3,8 4,24 4,3 3,72

24 hr. 4,99 5 5 5,12 5,08 4,89

Control 24 hr. 0 0 0 0 0 0

Table VIII AC

Substrate: 100% Cotton Po iline

Test results Units Process Recipe

Test Test standards Untreated Treated Texguard 20 3»

Absorbency AATCC 79:2014 3 sec instant Step 1: Exhaust Silvadur 930 IX

Vertical wicking AATCC 197:2013 0,64 0,73 mm/sec Bioguard PPZ 3¾

Horizontal wicking AATCC 198:2013 6,05 62 mn /sec

Oil repellency AATCC 118 0 0 Step 2: Pad Hydrosil 90 gpl

Stain release property AATCC 130 0 5

E.coli Sty.aureus Pseu, aeruginosa Sal. enterica Can, Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 3,09 2,73 2,43 2,79 2,56 2,53 properties

30 min. 3,54 3,13 3,32 3,89 3,32 3,34 (Log reduction)

60 min. 3,89 3,67 3,45 4,04 4,11 3,42

24 hr. 4,83 4,76 4,67 4,89 4,78 4,65

Control 24 hr. 0 0 0 0 0 0

Table VIII AD Substrate: 100% Cotton Po pline

Test results Units Process Recipe

Test Test standards Untreated Treated Texguard 20 3X

Absorbency AATCC 79:2014 3 sec instant Step 1: Exhaust Silvadur 930 1*

Vertical wicking AATCC 197:2013 0,64 0,75 mm/sec Bioguard PPZ 3¾

Horizontal wicking AATCC 198:2013 6,05 64 mm'/sec

Oil repellency AATCC 118 0 0 Step 2: Pad Hydrosil HOgpl

Stain release property AATCC 130 0 5

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 2,78 2,34 2,43 2,47 2,41 2,37 properties

30 min. 2,97 2,78 2,76 2,81 2,76 2,81 (Log reduction)

60 min. 3,21 2,93 2,98 3,01 2,86 3,02

24 hr. 3,78 3,35 3,87 3,91 3,97 3,86

Control 24 hr. 0 0 0 0 0 0

Table VIII AE

Substrate: 100% Polyester Chiffon

Test results Units Process Recipe

Test Test standards Untreated Treated Silvadur 930 5¾

Absorbency AATCC 79:2014 8 sec Instant Step 1 : Exhaust Bioguard PPZ 3¾

Vertical wicking AATCC 197:2013 0,168 0,23 mm/sec AE 5772 0,U

Horizontal wicking AATCC 198:2013 5 28 mmVsec

Oil repellency AATCC 118 0 0 Step 2: Pad Hydrosil 30 gpl

Stain release property AATCC 130 0 3

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 3,28 3 3,11 3,11 2,99 2,98 properties

30 min. 3,98 4,1 4 4,45 4 4,15 (Log reduction)

60 min. 3,56 4,3 4,25 4,65 4,45 4,38

24 hr. 5 5,21 5,2 5,61 5,22 5,15

Control 24 hr. 0 0 0 0 0 0

Table VIII BA Substrate: 100% Polyester Chiffon

Test results Units Process Recipe

Test Test standards Untreated Treated Silvadur 930 5¾

Absorbency AATCC 79:2014 8 sec Instant Step 1: Exhaust Bioguard PPZ 3¾

Vertical wicking AATCC 197:2013 0,168 0,232 mm/sec AEM 5772 0,1%

Horizontal wicking AATCC 198:2013 5 30 mm'/sec

Oil repellency AATCC 118 0 0 Step 2: Pad Hydrosil 50gp!

Stain release property AATCC 130 0 5

E.coli Sty, aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

lO min 3,25 3 3,1 3,1 2,97 2,97 properties

30 min. 3,91 4,1 4 4,42 4 4,15 (Log reduction)

60 min, 3,52 4,3 4,23 4,61 4,43 4,35

24 hr. 4,99 5,2 5,2 5,58 5,21 5,13

Control 24 hr. 0 0 0 0 0 0

Table VIII BB

Substrate: 100% Polyester Chiffon

Test results Units Process Recipe

Test _j Test standards Untreated Treated Silvadur 930 5¾

Absorbency AATCC 79:2014 8 sec Instant Step 1: Exhaust Bioguard PPZ 3¾

Vertical wicking AATCC 197:2013 0,168 0,234 mm/sec AEM 5772 0,1»

Horizontal wicking AATCC 198:2013 5 35 n /sec

Oil repellency AATCC 118 0 0 Step 2: Pad Hydrosil 70 gpl

Stain release property AATCC 130 0 5

E,coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 3,21 2,97 3,07 3,04 2,95 2,94 properties

30 min, 3,89 4 3,97 4,38 3,97 4,11 (Log reduction)

60 min, 3,5 4,24 4,21 4,59 4,43 4,25

24 hr. 4,95 5,17 5,18 5,53 5,2 5,1

Control 24 hr. 0 0 0 0 0 0

Table VIII BC Substrate: 100% Polyester Chiffon

Test results Units Process Recipe

Test Test standards Untreated Treated Silvadur 930 5¾

Absorbency AATCC 79:2014 8 sec Instant Step 1: Exhaust Bioguard PP2 3»

Vertical wicking AATCC 197:2013 0,168 0,239 mm /sec AEM 5772 0,1%

Horizontal wicking TCC 198:2013 5 37 mm^z/sec

Oil repeliency AATCC 118 0 0 Step 2: Pad Hydrosil 90 gpl

Stain release property AATCC 130 0 5

E.co(i Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

lO min 3,16 2,87 2,89 2,91 2,87 2,85 properties

30 min. 3,64 3,78 3,64 3,78 3,11 3,67 (Log reduction)

60 min. 3,23 4,09 3,92 4,12 3,96 3,78

24 hr. 4,11 4,67 4,83 4,92 4,85 4,89

Control 24 hr. 0 0 0 0 0 0

Table VIII BD

Substrate: 100% Polyester Chiffon

Test results Units Process Recipe

Test Test standards Untreated Treated Silvadur 930 5¾

Absorbency AATCC 79:2014 8 sec Instant Step 1: Exhaust Bioguard PPZ 3¾

Vertical wicking AATCC 197:2013 0,168 0,241 mm/sec AEM 5772 0,1%

Horizontal wicking AATCC 198:2013 5 40 mmVsec

Oil repeliency AATCC 118 0 0 Step 2: Pad Hydrosil 110 gpl

Stain release property AATCC 130 0 5

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 2,76 2,64 2,74 2,84 2,65 2,63 properties

30 min. 2,99 2,87 3,13 3,25 3,03 3,24 (Log reduction)

60 min. 3,12 3,09 3,1 3,14 3,45 3,63

24 hr. 3,89 3,87 3,88 3,96 3,87 3,75

Control 24 hr. 0 0 0 0 0 0

Table VIII BE 7050035

136

Substrate: 100% Cotton Po line

Test results Units Process Recipe

Test Test standards Untreated Treated Texguard 20 3»

Absorbency AATCC 79:2014 3 sec Isec Step 1: Exhaust Sifvadur 930 n

Vertical wicking AATCC 197:2013 0,64 0,66 mm/sec Bioguard PPZ 3¾

Horizontal wicking AATCC 198:2013 6,05 7,12 mnr/sec

Oil repellency AATCC 118 0 0 Step 2: Pad Per alose 70 gpl

Stain release property AATCC 130 0 2

E.coli Sty.aureus Pseu. aeruginosa Sal, enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

lO in 2,65 2,76 2,74 2,81 2,79 2,7 properties

30 min. 3,2 2,79 3,45 3,35 3,45 3,64 (Log reduction)

60 min. 3,5 3,5 3,45 3,67 3,64 3,4

24hr. 4,98 4,97 5 4,98 4,96 4,6

Control 24 hr. 0 0 0 0 0 0

Table IX AC

Substrate: 100% Cotton Popline

Test results Units Process Recipe

Test Test standards Untreated Treated Texguard 20 3¾

Absorbency AATCC 79:2014 3 sec Isec Step 1: Exhaust Silvadur 930 1*

Vertical wicking AATCC 197:2013 0,64 0,67 mm/sec Bioguard PPZ 3X

Horizontal wicking AATCC 198:2013 6,05 7,13 mn Vsec

Oil repellency AATCC 118 0 0 Step 2: Pad Permalose 90 gpl

Stain release property AATCC 130 0 2

E.coli Sty.aureus Pseu. aeruginosa Sal, enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 2,61 2,65 2,67 2,64 2,64 2,56 properties

30 min, 3,12 2,73 3,33 3,12 3,12 2,89 (Log reduction)

60 min, 3,23 2,91 3,25 3,56 3,35 3,25

24 hr, 4,76 4,87 4,87 4,67 4,85 4,31

Control 24 hr. 0 0 0 0 0 0

Table IX AD 7050035

138

Table IX AE

Table IX BA Substrate: 100% Polyester Chiffon

Test results Units Process Recipe

Test Test standards Untreated Treated Silvadur 930 5¾

Absorbenc AATCC 79:2014 8 sec Instant Step 1: Exhaust Bioguard PPZ 3¾

Vertical wicking AATCC 197:2013 0,168 0,232 mm/sec AEM5772 0,1*

Horizontal wicking AATCC 198:2013 5 30 mm^z/sec

Oil repellency AATCC 118 0 0 Step 2: Pad Permalose 50gpl

Stain release property AATCC 130 0 5

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATC 16404

AATCC 100:2012

Antimicrobial

10 min 3,25 3 3,1 3,1 2,97 2,97 properties

30 min. 3,91 4,1 4 4,42 4 4,15 (Log reduction)

60 min. 3,52 4,3 4,23 4,61 4,43 4,35

24 hr. 4,99 5,2 5,2 5,58 5,21 5,13

Control 24 hr. 0 0 0 0 0 0

Table IX BB

Substrate: I00¾ Polyester Chiffon

Test results Units Process Recipe

Test Test standards Untreated Treated Silvadur 930 5»

Absorbency AATCC 79:2014 8 sec Instant Step 1: Exhaust Bioguard PPZ 3%

Vertical wicking AATCC 197:2013 0,168 0,234 mm/sec AE 5772 0,11

Horizontal wicking AATCC 198:2013 5 35 mm²/sec

Oil repellency AATCC 118 0 0 Step 2: Pad Permalose 70 gpl

Stain release property AATCC 130 0 5

E.coli Sty.aureus Pseu. aeruginosa Sal enterica Can, Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 3,21 2,97 3,07 3,04 2,95 2,94 properties

30 min. 3,89 4 3,97 4,38 3,97 4,11 (Log reduction)

60 min. 3,5 4,24 4,21 4,59 4,43 4,25

24 hr. 4,95 5,17 5,18 5,53 5,2 5,1

Control 24 hr. 0 0 0 0 0 0

Table IX BC Substrate: 100% Polyester Chiffon

Test results Units Process Recipe

Test Test standards Untreated Treated Silvadur 930 5*

Absorbency AATCC 79:2014 8 sec Instant Step 1: Exhaust BioguardPPZ 3JE

Vertical wicking AATCC 197:2013 0,168 0,239 mm/sec AEM5772 0,1*

Horizontal wicking AATCC 198:2013 5 42 mmVsec

Oil repellency AATCC 118 0 0 Step 2: Pad Permalose 90 gpl

Stain release property AATCC 130 0 5

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can, Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10min 2,89 2,78 2,78 2,69 2,65 2,56 properties

30 min. 3,11 3,78 3,45 3,34 3,55 3,61 (Log reduction)

60 min. 3,34 3,89 3,85 3,75 3,76 3,66

24 hr. 4,78 4,67 4,75 4,79 4,86 4,85

Control 24 hr. 0 0 0 0 0 0

Table IX BD

Table IX BE Substrate: 100% Cotton Po >line

Test results Units Process Redpe

Test Test standards Untreated Treated Texguard 20 3*

Absorbency AATCC 79:2014 3 sec instant Step 1: Exhaust SHvadur 930 IX

Vertical wi^'cking AATCC 197:2013 0,64 0,67 mm/sec Bioguard PPZ 3»

Horizontal wicking AATCC 198:2013 6,05 48 mmVsec

Oil repellency AATCC 118 0 0 Step 2: Pad Hydroperm RPU 30 gpl

Stain release property AATCC 130 0 4

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 3,29 3,12 3,1 3,11 3 3,02 properties

30 min. 3,98 3,39 4,09 4,49 4,06 4,18 (Log reduction)

60 min. 4,56 4 4,3 4,65 4,53 4,39

24 hr. 5,16 5,08 5,2 5,54 5,21 5,16

— _— _ _ _ Control 24 hr. 0 0 0 0 0 0

Table X

Table X AB Substrate: 100% Cotton Po ptine

Test results Units Process Recipe

Test Test standards Untreated Treated Texguard 20 3X

Absorbency AATCC 79:2014 3 sec instant Step 1: Exhaust Stlvadur 930 IX

Vertical wicking TCC 197:2013 0,64 0,7 mm/sec Bioguard PPZ 3%

Horizontal wicking AATCC 198:2013 6,05 59 mm'/sec

Oil repellency AATCC 118 0 0 Step 2: Pad Hydroperm RPU 70 gpl

Stain release property AATCC 130 0 5

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp, Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 3,14 2,83 2,85 3 2,86 2,85 properties

30 min. 3,56 3,17 3,49 4,18 3,55 3,65 (Log reduction)

60 min, 4,08 3,76 3,76 4,23 4,28 3,7

24 hr. 4,86 4,97 4,97 4,87 5,01 4,84

Control 24 hr. 0 0 0 0 0 0

Table X AC

Substrate: 100% Cotton Popline

Test results Units Process Recipe

Test Test standards Untreated Treated Texguard 20 3%

Absorbency AATCC 79:2014 3 sec instant Step 1: Exhaust Silvadur 930 IX

Vertical wicking AATCC 197:2013 0,64 0,72 mm/sec Bioguard PPZ 3%

Horizontal wicking AATCC 198:2013 6,05 60 n /sec

Oil repellency AATCC 118 0 0 Step 2: Pad Hydroperm RPU 90 gpl

Stain release property AATCC 130 0 5

E.coli Sty.aureus Pseu. aeruginosa Sal enterica Can. Albicans Asp, Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 3,06 2,72 2,41 2,75 2,5 2,51 properties

30 min. 3,53 3,12 3,28 3,83 3,31 3,32 (Log reduction)

60 min. 3,86 3,64 3,41 4,01 4,08 3,38

24 hr. 4,8 4,74 4,63 4,67 4,65 4,56

Control 24 hr. 0 0 0 0 0 0

Table X AD Substrate: 100% Cotton Po Mine

Test results Units Process Recipe

Test Test standards Untreated Treated Texguard 20 3¾

Absorbency AATCC 79:2014 3 sec instant Step 1: Exhaust Silvadur 930 IX

Vertical wicking AATCC 197:2013 0,64 0,73 mm/sec Bioguard PPZ 3¾

Horizontal wicking AATCC 198:2013 6,05 63 mm^z/sec

Oil repellency AATCC 118 0 0 Step 2: Pad Hydroperm RPU 110gpl

Stain release property AATCC 130 0 5

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

lOmin 2,75 2,29 2,38 2,44 2,38 2,32 properties

30 min. 2,93 2J3 2,71 2,78 2,75 2,78 (Log reduction)

60 min. 3,19 2,89 2,92 3 2,77 3

24 nr. 3,73 3,29 3,82 3,89 3,89 3,79

Control 24 hr. 0 0 0 0 0 0

Table X AE

Substrate: 100% Polyester Chiffon

Test results Units Process Recipe

Test Test standards Untreated Treated Silvadur 930 5¾

Absorbency AATCC 79:2014 8 sec Instant Step 1: Exhaust Bioguard PPZ 3Ϊ

Vertical wicking AATCC 197:2013 0,168 0,18 mm/sec AE 5772 0,1%

Horizontal wicking AATCC 198:2013 5 23 mm'/sec

Oil repellency AATCC 118 0 0 Step 2: Pad Hydroperm RPU 30 gpl

Stain release property AATCC 130 0 3

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 3,25 3 3,09 3,09 2,92 2,85 properties

30 min. 3,92 4,1 4 4,38 3,98 4,12 (Log reduction)

60 min, 3,53 4,27 4,23 4,54 4,41 4,35

24 hr. 4,98 5,19 5,17 5,58 5,19 5,13

Control 24 hr, 0 0 0 0 0 0

Table X BA Substrate: 100% Polyester Chiffon

Test results Units Process Recipe

Test Test standards Untreated Treated Siivadur 930 5»

Absorbency AATCC 79:2014 8 sec Instant Step 1: Exhaust Bioguard PPZ 3%

Vertical wicking AATCC 197:2013 0,168 0,21 mm/sec AE 5772 0,1*

Horizontal wicking AATCC 198:2013 5 28 n /sec

Oil repellency AATCC 118 0 0 Step 2: Pad Hydroperm RPU 50 pl

Stain release property AATCC 130 0 3

E.coli Sty.aureus Pseu, aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 3,22 3,03 3,08 3,06 2,93 2,94 properties

30 min. 3,89 4,11 3,96 4,4 4 4,12 (Log reduction)

60 min. 3,48 4,3 4,22 4,58 4,41 4,33

24 hr. 4,93 5,21 5,18 5,53 5,19 5,11

Control 24 hr. 0 0 0 0 0 0

Table XBB

Table X BC Substrate: 100% Polyester Chiffon

Test results Units Process Recipe

Test Test standards Untreated Treated Si^'lvadur 930 5%

Absorbency AATCC 79:2014 8 sec Instant Step 1: Exhaust Bioguard PPZ 3%

Vertical wicking AATCC 197:2013 0,168 0,23 mm/sec AEM5772 0,1¾

Horizontal wicking AATCC 198:2013 5 33 mm'/sec

Oil repellency AATCC 118 0 0 Step 2: Pad Hydroperm RPU 90gpl

Stain release property AATCC 130 0 4

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 3,13 2,83 2,83 2,89 2,83 2,83 properties

30min. 3,61 3,73 3,58 3,73 3,06 3,61 (Log reduction)

60 min. 3,2 4,03 3,89 4,08 3,9 3,73

24 hr. 4,07 4,59 4,81 4,91 4,83 4,84

Control 24 hr. 0 0 0 0 0 0

Table X BD

Substrate: 100% Polyester Chiffon

Test results Units Process Recipe

Test Test standards Untreated Treated Silvadur 930 5»

Absorbency AATCC 79:2014 8 sec Instant Step 1: Exhaust Bioguard PPZ 3»

Vertical wicking AATCC 197:2013 0,168 0,235 mm/sec AE 5772 0,1%

Horizontal wicking AATCC 198:2013 5 35 mm'/sec

Oil repellency AATCC 118 0 0 Step 2: Pad Hydroperm RPU 110 gpl

Stain release property AATCC 130 0 4

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp, Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 2,73 2,63 2,72 2,81 2,62 2,61 properties

30 min. 2,92 2,85 3,12 3,23 3,02 3,18 (Log reduction)

60 min. 3,11 3,04 3,1 3,13 3,38 3,58

24 hr. 3,85 3,83 3,85 3,92 3,78 3,65

Control 24 hr. 0 0 0 0 0 0

Table X BE Substrate: 65% Viscose + 35% Polyester Fabric End Product: Sanitary Napkin Layer 2 After 25 washes

Construction: Nonwoven GSM 500

Process Recipe spi

Test results Units Silvadur 930 10

Test Test standards Untreated Treated BioguardPPZ 50

Step 1: Exhaust

Absorbency TCC 79:2014 7 sec instant Texgurad 20 20

Vertical widtinj AATCC 197:2013 0,27 0,29 mm/sec Chitosan 102 20

Horizontal wicking AATCC 198:2013 15,27 18,1 m '/sec

water repellency AATCC 22 0 0 Step 2: Pad Hydros* 50

Oil repellency AATCC 130 0 0

Stain release property AATCC 130 2 5

water holding capacity AST D 7367 9 times 9 times

E.coli Sty.aureus Pseu. aeruginosa Sal, enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

10 min 3,26 3,21 3,21 3,17 3,21 3,21

30min. ll 4,13 4,12 4,11 4,13 4,12

60 min. 5,15 5,15 5,11 5,15 5,17 5,39

Antimicrobial 24 hr. 5,63 5,61 5,59 5,58 5,58 5,61 properties

(Log reduction) AATCC 2149:10

10 min 3,15 3,17 3,17 3,15 3,17 3,18

30 min. 4,08 4,11 4,06 4,05 4,12 4,07

60 min. 4,99 4,99 4,98 4,98 5,07 4,99

24 hr. 5,62 5,56 5,59 5,59 5,63 5,56

Control 24 hr. 0 0 0 0 0 0

Table XI AA

Substrate: 65% Viscose + 35¾ Polyester Fabric End Product: Sanitary Napkin Layer 2 After 25 washes

Construction: Nonwoven GSM 500

Process Recipe gpl

Test results Units SUvadur 930 10

Test Test standards Untreated Treated Bioguard PPZ 50

Step 1: Exhaust

Absorbenc AATCC 79:2014 7sec instant Texgurad 20 20

Vertical wicking AATCC 197:2013 0,27 0,34 mm/sec Chitosan 102 20

Horizontal icking AATCC 198:2013 15,27 19,15 mm'/sec

water repellency AATCC 22 0 0 Step 2: Pad HydrosiL 100

Oil repeiiency AATCC 130 0 0

Stain release property AATCC 130 2 5

water holding capacity ASTMD 7367 9 times 9 times

E.coli Sty.aureus Pseu. aeruginosa Sal, enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

lOmin 3,15 3,17 3,15 3,16 3,17 3,2

30 min. 4,09 4,05 4,07 4,07 4,08 4,07

60 min. 5,11 5,13 5,12 5,11 5,12 5,34

Antimicrobial 24 nr. 5,56 5,54 5,53 5,54 5,53 5,55 properties

(Log reduction) AATCC 2149:10

10 min 3,11 3,14 3,12 3,14 3,12 3,13

30 min. 4,02 4 4,02 4 4,01 4

60 min. 4,97 4,96 4,95 4,97 4,98 4,%

24 nr. 5,53 5,52 5,51 5,5 5,53 5,52

Control 24 hr. 0 0 0 0 0 0

Table XI AB

Substrate: 65% Viscose + 35% Polyester Fabric End Product: Sanitary Napkin Layer 2 After 25 washes

Construction: Nonwoven GSM 500

Process Recipe gpl

Test results Units Silvadur 930 10

Test Test standards Untreated Treated BioguardPPZ 50

Step 1 : Exhaust

Absorbency AATCC 79:2014 7sec instant Texgurad 20 20

Vertical wicking AATCC 197:2013 0,27 0,36 mm/sec Chitosan 102 20

Horizontal wicking AATCC 198:2013 15,27 19,65 mm'/sec

water repellenc AATCC 22 0 0 Step 2: Pad Hydrosil 100

Oil repellency AATCC 130 0 0

Stain release property AATCC 130 2 5

water holding capacity AS M D 7367 9 times 9 times

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can, Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

lOmin 3,02 3,13 3,11 3,09 3,13 3,06

30 min. 3,89 3,89 3,89 3,67 3,89 3,87

60 mi^'n. 4,87 4,87 4,78 4,67 5 5,23

Antimicrobial 24 nr. 5,46 5,32 5,13 5,34 5,32 5,41 properties

(Log reduction) AATCC 2149:10

10 min 3,03 3,05 3 3,01 3,04 2,89

30 min. 3,76 3,89 3,56 3,67 3,66 3,56

60 min. 4,32 4,67 4,34 4,56 4,36 4,23

24 hr. 4,84 5,06 4,89 4,99 4,96 4,76

Control 24 hr. 0 0 0 0 0 0

Table XI AC

Substrate: 100% Cotton Fabric End Product: Sanitary Napkin Layer 2 After 25 washes

Construction: Nonwoven GSM 500

Process Recipe gpi

Test results Units Silvadur 930 10

Test Test standards Untreated Treated Bioguard PZ 50

Step 1: Exhaust

Absorbency AATCC 79:2014 7 sec instant Texgurad 20 20

Vertical wicking MTCC 197:2013 0,27 0,3 mm/sec Chitosan 102 20

Horizontal wicking AATCC 198:2013 15,27 18,25 mm'/sec

water repeliency MTCC 22 0 0 Step 2: Pad Hydrosil 50

Oil repeliency AATCC 130 0 0

Stain release property AATCC 130 2 5

water holding capacity ASTM D 7367 9 times 9 times

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

10 min 3,28 3,23 3,26 3,19 3,27 3,27

30 min. 4,15 4,18 4,19 4,17 4,19 4,19

60 min. 5,17 5,19 5,16 5,18 5,2 5,42

Antimicrobial 24 hr. 5,67 5,66 5,64 5,67 5,63 5,68 properties

(Log reduction) AATCC 2149:10

10 min 3,18 3,21 3,23 3,19 3,23 3,19

30 min. 4,11 4,17 4,29 4,18 4,18 4,12

60 min. 5,07 5,09 5,12 5,08 L 5,13 5,23

24 hr. 5,76 5,82 5,64 5,78 5,74 5,87

Control 24 hr. 0 0 0 0 0 0

Table XI BA

Table XI BB

Construction: Nonwoven GSM 500

Process Recipe ≠

Test results Units Silvadur 930 10

Test Test standards Untreated Treated Bioguard PZ 50

Step 1: Exhaust

Absorbency AATCC 79:2014 7 sec instant Texgurad 20 20

Vertical wicking AATCC 197:2013 0,27 0,39 mm/sec Chitosan 102 20

Horizontal wicking AATCC 198:2013 15,27 19,65 mm'/sec

water repellency AATCC 22 0 0 Step 2: Pad Hydrosil 100

Oil repellency AATCC 130 0 0

Stain release property AATCC 130 2 5

water holding capacity AS™ D 7367 9 times 9 times

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can, Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

10 min 3,07 3,06 3,03 3,05 3,02 3,01

30min. 3,91 3,74 3,67 3,62 3,67 3,82

60 min, 4,88 4,34 4,65 4,65 4,96 5,15

Antimicrobial 24 nr. 5,45 5,32 4,89 5,3 5,21 5,32 properties

(Log reduction) AATCC 2149:10

10 min 3 3,01 3 2,99 2,94 2,78

30 min, 3,45 3,67 3,44 3,57 3,56 3,45

60 min. 4,25 4,34 4,28 4,51 4,12 4,15

24 hr. 4,67 4,72 4,62 4,84 4,87 4,65

Control 24 hr. 0 0 0 0 0 0

Table XI BC

Substrate: 100% Polyester Fabric End Product: Sanitary Napkin Layer 2 After 25 washes

Construction: Nonwoven GSM 500

Process Recipe SPl

Test results Units Sitvadur 930 10

Test Test standards Untreated Treated Bioguard PPZ 50

Step 1: Exhaust

Absorbency AATCC 79:2014 7 sec instant Texgurad 20 20

Vertical wicking AATCC 197:2013 0,27 0,28 mm/sec Chitosan 102 20

Horizontal wi^'cking AATCC 198:2013 15,27 18,22 m'/sec

water repellency AATCC 22 0 0 Step 2: Pad Hydrosil 50

Oil repellency AATCC 130 0 0

Stain release property AATCC 130 2 5

water holding capacity ASTMD7367 9 times 9 times

E.co(i Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

10 min 3,2 3,12 3,23 3,14 3,18 3,21

30 min. 4,11 4,09 4,13 4,13 4,12 4,11

60 min. 5 5,03 5,11 5,09 5,13 5,34

Antimicrobial 24 nr. 5,34 5,35 5,36 5,31 5,29 5,31 properties

(Log reduction) AATCC 2149:10

10 min 3,13 3,18 3,18 3,13 3,18 3,13

30 min. 4,08 4,14 4,24 4,14 4,12 4,09

60 min. 5,02 5,05 5,06 5,03 5,13 5,15

24 hr. 5,67 5,78 5,56 5,65 5,65 5,67

Control 24 hr. 0 0 0 0 0 0

Table XI CA

Substrate: 100% Polyester Fabric End Product: Sanitary Hapkin Layer 2 After 25 washes

Construction: Nonwoven GSM 500

Process Recipe ≠

Test results Units Silvadur 930 10

Test Test standards Untreated Treated Bioguard PPZ 50

Step 1: Exhaust

Absorbency AATCC 79:2014 7 sec instant Texgurad 20 20

Vertical wicking AATCC 197:2013 0,27 0,33 mm/sec Chitosan 102 20

Horizontal wicking AATCC 198:2013 15,27 19,32 mm'/sec

water repellency AATCC 22 0 0 Step 2: Pad Hydrosil 100

Oil repellency AATCC 130 0 0

Stain release property AATCC 130 2 5

water holding capacity ASTMD 367 9 times 9 times

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp, Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

10 min 3,08 3,07 3,07 3,1 3,02 3

30 min. 3,96 3,95 3,89 3,98 3,78 3,87

60 min. 5,03 5,01 5,01 5,03 4,97 5,08

Antimicrobial 24 hr. 5,39 5,37 5,38 5,41 5,31 5,11 properties

(Log reduction) AATCC 2149:10

10 min 3,01 3,09 3,05 3,02 3 3,1

30 min. 3,84 3,91 3,89 3,75 3,74 3,99

60 min. 4,81 4,88 4,87 4,79 4,74 4,83

24 hr. 5,42 5,36 5,32 5,21 5,12 5,32

Control 24 hr, 0 0 0 0 0 0

Table XJ CB

Construction: Nonwoven GSM 500

Process Recipe ≠

Test results Units Stlvadur 930 10

Test Test standards Untreated Treated Bioguard PPZ 50

Step 1: Exhaust

Absorbency AATCC 79:2014 7 sec instant Texgurad 20 20

Vertical wicking AATCC 197:2013 0,27 0,35 m /sec Chiton 102 20

Horizontal wicking AATCC 198:2013 15,27 19,63 mmVsec

water repellency AATCC 22 0 0 Step 2: Pad Hydrosil 100

Oil repellency AATCC 130 0 0

Stain release property AATCC 130 2 5

water holding capacity ASTM 07367 9 times 9 times

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

lO min 3 2,89 2,93 3,02 3 2,87

30 min. 3,23 3,15 3,17 3,25 3,22 3,12

60 min. 3,67 3,56 3,61 3,75 3,66 3,5

Antimicrobial 24 nr. 4,67 4,62 4,63 4,78 4,68 4,53 properties

(Log reduction) AATCC 2149:10

10 min 2,89 2,92 3 2,65 2,94 2,78

30 min. 3,11 3,34 3,45 3,07 3,56 3,45

60 min. 3,87 3,89 3,92 4,51 4,12 4,15

24 hr. 4,32 4,35 4,38 4,84 4,87 4,65

Control 24 hr. 0 0 0 0 0 0

Table XI CC

Table XII AA

Substrate: 100% Cotton Popline Exhaust time: 60 min

Test results Units Process Recipe

Test Test standards Untreated Treated Texguard 20 3%

Absorbency AATCC 79:2014 3 sec instant Step 1: Exhaust Silvadur 930 IX

Vertical wicking AATCC 197:2013 0,64 0,65 mm/sec Bioguard PPZ 3X

Horizontal wicking AATCC 198:2013 6,05 25 n /sec

Oil repellency AATCC 118 0 0 Step 2: Pad Hydrosil 50 gpl

Stain release property AATCC 130 1 4

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 2,57 2,6 2,6 2,59 2,58 2,55 properties

30 min. 3,06 3,05 3,07 3,1 3,11 3,12 (Log reduction)

60 min. 3,32 3,32 3,33 3,3 3,32 3,31

24 hr, 3,81 3,84 3,89 3,82 3,86 3,84

Control 24 hr. 0 0 0 0 0 0

Table XII AB Substrate: 100% Cotton Popline Exhaust time: 80 min

Test results Units Process Reripe

Test Test standards Untreated Treated Texguard 20 3»

Absorbency AATCC 79:2014 3 sec instant Step 1: Exhaust Silvadur 930 U

Vertical wicking AATCC 197:2013 0,64 0,65 mm/sec Bioguard PZ 3¾

Horizontal wicking AATCC 198:2013 6,05 25 mm sec

Oil repellency AATCC 118 0 0 Step 2: Pad Hydrosil 50gpl

Stain release property AATCC 130 1 4

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 2,55 2,57 2,59 2,55 2,56 2,52 properties

30min. 3,01 3,04 3,01 3 3,09 3,11 (Log reduction)

60 min. 3,3 3,28 3,34 3,1 3,15 3,3

24 hr. 3,75 3,78 3,83 3,8 3,76 3,81

Control 24 hr. 0 0 0 0 0 0

Table XII AC

Table XII BA Substrate: 100% Polyester Chiffon Exhaust time: 60 min

Test results Units Process Recipe

Test Test standards Untreated Treated Silvadur 930

Absorbency MTCC 79:2014 8 sec 5 sec Step 1: Exhaust Bioguard PPZ 3%

Vertical wicking AATCC 197:2013 0,168 0,17 mm/sec AEM5772 0,1%

Horizontal wicking AATCC 198:2013 5 20 mmVsec

Oil repelLency AATCC 118 0 0 Step 2: Pad Hydrosil 50 gpl

Stain release property AATCC 130 1 4

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

lO min 2,54 2,56 2,55 2,55 2,56 2,53 properties

30 min. 3,08 2,9 3,07 3,02 3,05 3,1 (Log reduction)

60 min. 3,25 3,25 3,21 3,25 3,2 3,1

24 r. 3,71 3,7 3,7 3,77 3,75 3,75

Control 24 hr. 0 0 0 0 0 0

Table XII BB

Substrate: 100% Polyester Chiffon Exhaust time: 80 min

Test results Units Process Recipe

Test Test standards Untreated Treated Silvadur 930 5%

Absorbency AATCC 79:2014 8 sec 5 sec Step 1: Exhaust Bioguard PPZ 3%

Vertical wicking AATCC 197:2013 0,168 0,17 mm/sec AE 5772 0,1%

Horizontal wicking AATCC 198:2013 5 20 mmVsec

Oil repellency AATCC 118 0 0 Step 2: Pad Hydrosil 50 gpl

Stain release property AATCC 130 1 4

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 2,4 2,35 2,34 2,34 2,31 2,3 properties

30 min. 2,99 2,5 3,07 3,02 3,05 3,1 (Log reduction)

60 min. 3,22 3,25 3,21 3,25 3,2 3,1

24 hr. 3,5 3,6 3,7 3,6 3,5 3,6

Control 24 hr, 0 0 0 0 0 0

Table XII BC

Table XIII AA

Substrate: 100% Cotton Popline Curing temp.: 170 "C After 25 washes

Test results Units Process Recipe

Test Test standards Untreated Treated Texguard 20 3»

Absorbency AATCC 79:2014 3 sec instant Step 1: Exhaust Silvadur 930 1¾

Vertical wicking AATCC 197:2013 0,64 0,65 mm/sec Bioguard PZ 3¾

Horizontal wicking AATCC 198:2013 6,05 15 mn /sec

Oil repellency AATCC 118 0 0 Step 2: Pad Hydrosil 50 gpl

Stain release property AATCC 130 1 3

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can, Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 min 2,5 2,56 2,53 2,53 2,51 2,5 properties

30 min. 2,98 2,9 3,07 3,02 3,05 2,98 (Log reduction)

60 min. 3,23 3,24 3,21 3,2 3,2 3,1

24 hr. 3,67 3,69 3,7 3,75 3,76 3,72

Control 24 hr. 0 0 0 0 0 0

Table XIII AB Substrate: 100% Cotton Po iline Curing temp.: 180 "C After 25 washes

Test results Units Process Recipe

Test Test standards Untreated Treated Texguard 20 3¾

Absorbency AATCC 79:2014 3 sec instant Step 1: Exhaust Silvadur 930 1»

Vertical wicking AATCC 197:2013 0,64 0,65 mm /sec Bioguard PPZ 3%

Horizontal wicking AATCC 198:2013 6,05 25 mmVsec

Oil repellency AATCC 118 0 0 Step 2: Pad Hydrosil 50 gpl

Stain release property AATCC 130 1 4

E.coli Sty.aureus Pseu, aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

10 in 2,55 2,6 2,59 2,59 2,58 2,55 properties

30 min. 3,06 3,05 3,07 3,1 3,11 3,12 (Log reduction)

60 min. 3,31 3,32 3,34 3,3 3,32 3,31

24 hr. 3,82 3,84 3,89 3,82 3,86 3,83

Control 24 nr. 0 0 0 0 0 0

Table XIII AC

Table XIII AD ΐ6θ

Table XIII BB l6l

Table XIII BD Substrate: 100% Cotton Popline

Test results Units Process Recipe

Test Test standards Untreated Treated Texguard 20 30 gpl

Absorbency AATCC 79:2014 3 sec instant Step 1: Pad Silvadur 930 10 gpl

Vertical wicking AATCC 197:2013 0,64 0,65 mm/sec Bioguard PPZ 30 gpl

Horizontal wicking AATCC 198:2013 6,05 20 n /sec

Oil repellency AATCC 118 0 0 Step 2: Pad Hydrosil 50 gpl

Stain release property AATCC 130 1 3

E.coli Sty.aureus Pseu. aeruginosa Sal. enterica Can. Albicans Asp. Niger

ATCC 25922 ATCC 6538 ATCC 15442 ATCC10708 ATCC 10231 ATCC 16404

AATCC 100:2012

Antimicrobial

lOmin 1,01 1,02 1 1,05 1,03 1 properties

30 min. 1,23 1,24 1,2 1,2 1,23 1,24 (Log reduction)

60 min. 1,89 1,92 1,78 1,76 1,81 1,91

24 nr. 2,08 2,1 2,11 2,13 2,14 2,11

Control 24 nr. 0 0 0 0 0 0

Table XIX

Claims

A washable and reusable hygiene product, in particular a sanitary napkin, panty or underwear liner, nappy, diaper, diaper liner, adult diaper, bed pad, or nursing pad, comprising

one or more dispersion layers comprising or consisting of a substrate having a water repellency rating, measured in accordance with AATCC test method 22-2014, of at most 50;

an outer layer comprising or consisting of a textile material; and a water impermeable layer placed between the one or more dispersion layers and the outer layer.

The hygiene product of claim 1, wherein the water impermeable layer comprises or consists of a plastic material, in particular polypropylene (PP), polyethersulfon (PES), polyamide (PA), or preferably polyvinyl chloride (PVC),

The hygiene product of any one of claims 1 or 2, wherein the average weight of the water impermeable layer is at most 300 g/m².

The hygiene product of any one of claims 1 to 3, wherein the average thickness of the water impermeable layer is at most 0,4 mm.

The hygiene product of any one of claims 1 to 4, wherein the hygiene product has a seam which is located at one or more edges of the hygiene product, where one or more layers of the hygiene product are directly or indirectly attached together, preferably by ultrasonic welding, and wherem the water impermeable layer is among the layers attached together by the seam.

The hygiene product of claim 5, wherein the water impermeable layer is folded on one or more edges hygiene product such that the water impermeable layer covers the one or more dispersion layers on the top or inner side in an area of the seam.

The hygiene product of any one of claims 1 to 6 wherein the textile material of the outer layer has a water repellency rating of at least 70 when measured in accordance with AATCC test method 22-2014.

The sanitary napkin of any of the claims 1 to 7, wherein the outer layer is folded on one or preferably both longitudinal edges of the sanitary napkin such that the outer layer covers the one or more dispersion layers on the top or inner side in an area of the seam.

The sanitary napkin of any one of claims 1 to 8, wherein the sanitary napkin comprises wings which can be attached to each other, preferably by a snap fastener, to attach the sanitary napkin to a textile, in particular an undergarment, and the wings are an extension of the outer layer.

The sanitary napkin of both claims 8 and 9, wherein the wings are part of the outer layer, and obtained by folding the outer layer on itself in an area of the seam.

A washable and reusable hygiene product, in particular a sanitary napkin, parity or underwear liner, nappy, diaper, diaper liner, adult diaper, bed pad, or nursing pad, comprising

a first and a second outer layer and

one or more main absorption layers,

the hygiene product having a seam which is located at one or more edges of the hygiene product, where one or more layers of the hygiene product are directly or indirectly attached together, preferably by ultrasonic welding,

characterized in that the one or more main absorption layers are not among the layers attached together by the seam.

The hygiene product of claim 11, wherein the one or more main absorption layers are directly or indirectly attached to an outer layer.

The hygiene product of claim 12, wherein an outer layer to which the one or more main absorption layers are attached is a dispersion layer comprising or consisting of a substrate having a water repellency rating, measured in accordance with AATCC test method 22-2014, of at most 50.

14. The hygiene product of any one of claim 12 or 13, wherein the attachment of the one or more absorption layers to an outer layer is by way of ultrasonic welding.

15. The hygiene product of claim 14, wherein the attachment of the one or more absorption layers to an outer layer is by way of welding spots having a length of at most 6 cm and/or a width of at most 2 cm.

16. The hygiene product of any one of claims 12 to 15, wherein the one or more absorption layers have two longitudinal sides and two front sides, each of the longitudinal sides being at least twice as long as each of the front sides, and the one or more absorption layers are attached to an outer layer at least at two different areas on each of the longitudinal sides.

17. The hygiene product of any one of claims 12 to 16, wherein the one or more absorption layers have four sides, and the one or more absorption layers are attached to an outer layer on each of the four sides.

18. The hygiene product of any one of claims 12 to 17, wherein the one or more absorption layers have two longitudinal sides and two front sides, each of the longitudinal sides being at least twice as long as each of the front sides, and the distance between any point of attachment of the one or more absorption layers to an outer layer at a longitudinal side and the edge of the longitudinal side is at most 2.5 cm.

19. The hygiene product of any one of claims 11 to 18, wherein the hygiene product is a product of any one of claims 1 to 7.

20. A sanitary napkin, comprising

a plane main body having a minimum length of at least 40 cm, the main body comprising one or more dispersion layers comprising or consisting of a substrate having a water repellency rating, measured in accordance with AATCC test method 22-2014, of at most 50 and a water repellent layer having a water repellency rating of at least 70 when measured in accordance with AATCC test method 22-2014; and one or more ribbons, wherein the one or more ribbons, or the one or more ribbons together with the main body, form a loop around the waist of the user when the sanitary napkin is worn by the user.

21. The sanitary napkin of claim 20, wherein the one or more ribbons are attached on one or preferably both longitudinal ends of the main body.

22. The sanitary napkin of claim 21, wherein the one or more ribbons are attached at the edge of the one or preferably both longitudinal ends of the main body.

23. The sanitary napkin of any one of claims 20 to 22, wherein the main body of the sanitary napkin comprises two or more layers and the one or more ribbons are attached only at the layer which is away from body of the user when the sanitary napkin is worn by the user.

24. The sanitary napkin of any one of claims 20 to 23, wherein the ribbons are passed through one or more passageways created by one or preferably both longitudinal ends of the main body being folded and attached to themselves, preferably by sewing.

25. The sanitary napkin of any one of claims 20 to 24, wherein the one or more ribbons comprise means for adjusting the length of the loop around the waist of the user.

26. The sanitary napkin of any one of claims 20 to 25, wherein the one or more ribbons comprise means for opening and closing the loop, preferably a buckle.

27. The sanitary napkin of any one of claims 20 to 26, wherein the one or more ribbons are made of or comprise an elastic material, preferably rubber.

28. The sanitary napkin of any one of claims 20 to 27, wherein the maximum width of the main body is at most 20 cm, preferably at most 15 cm.

29. The sanitary napkin of any one of claims 20 to 28, wherein the maximum width or diameter of the ribbons is at most 3 cm.

30. The sanitary napkin of any one of claims 20 to 29, wherein the main body is a hygiene product of any one of claims 1 to 19.

A sonotrode suitable for use in the process of attaching together one or more dispersion layers and one or more water repellent layers of a hygiene product using ultrasonic welding,

the sonotrode comprising protrusions arranged in grids of lines, wherein the top of protrusions has a width of at least 0.1 mm and the top and/or the transitions between the sides and the top of the protrusions are rounded.

The sonotrode of claim 31, wherein the width of the top of a protrusion is the distance between two points at which the slope of the sides of the protrusion reaches an angle with the horizontal direction of at most 25⁰.

The sonotrode of any one of claims 31 or 32, wherein the angle of the slope of a protrusion, in particular in the area of the top and/or the transitions between the sides and the top of the protrusion, does not change by more than 20° within a distance of 0.01 mm.

The sonotrode of any one of claim 31 to 33, wherein the number of lines of protrusions running in the longitudinal direction is 2 or preferably 3.

The sonotrode of any one of claim 31 to 34, wherein the protrusions are arranged on a plane.

A washable and reusable hygiene product, in particular a sanitary napkin, panty or underwear liner, nappy, diaper, diaper liner, adult diaper, bed pad, or nursing pad, the hygiene product comprising one or more dispersion layers and one or more water repellent layers, the hygiene product having a seam which is located at one or more edges of the hygiene product, where one or more layers of the hygiene product are directly or indirectly attached together by ultrasonic welding using the sonotrode of any one of claims 31 to 35.

37- A washable and reusable hygiene product, in particular a sanitary napkin, panty or underwear liner, nappy, diaper, diaper liner, adult diaper, bed pad, or nursing pad, hygiene product comprising one or more dispersion layers and one or more water repellent layers, the hygiene product having a seam which is located at one or more edges of the hygiene product, where one or more layers of the hygiene product are directly or indirectly attached together by ultrasonic welding using a sonotrode comprising protrusions arranged in grids of lines, wherein the number of lines of protrusions running in the longitudinal direction is 2 or preferably 3.

The hygiene product of any one of claims 36 or 37, wherein the hygiene product is the product of any one of claims 1 to 19.

A method of directly or indirectly attaching together one or more layers of a washable and reusable hygiene product, in particular a sanitary napkin, panty or underwear liner, nappy, diaper, diaper liner, adult diaper, bed pad, or nursing pad, the hygiene product comprising one or more dispersion layers and one or more water repellent layers, at a seam which is located at one or more edges of the hygiene product, by ultrasonic welding using a sonotrode comprising protrusions arranged in grids of lines, wherein the number of lines of protrusions running in the longitudinal direction is 2 or preferably 3.

A method of assembling a washable and reusable hygiene product, in particular a sanitary napkin, panty or underwear liner, nappy, diaper, diaper liner, adult diaper, bed pad, or nursing pad, the hygiene product comprising a top layer, one or more main absorption layers, and a bottom layer, the method comprising the steps of

optionally welding the top layer and the one or more main absorption layers together;

folding at least parts of the longitudinal sides of the bottom layer such that the folded parts of the bottom layer cover the top layer on the top side;

creating a seam where at least the folded part of the bottom layer, the top layer and the part of the bottom layer located at the bottom are attached together by ultrasonic welding.

41. The method of claim 40, wherein the seam spans at least 90% of the longitudinal sides of the top layer.

42. The method of any one of claims 40 or 41, comprising creating a seam where at least the front sides of the top layer and the part of the bottom layer located at the bottom are attached together by ultrasonic welding.

43. The method of any one of claims 40 to 42, wherein the one or more main absorption layers are not among the layers attached together by the seam of claim 40 and/ or the seam of claim 42.

44. The method of any one of claims 40 to 43, wherein prior to creating the seam of claim 40, at least the folded part of the bottom layer, the top layer and the part of the bottom layer located at the bottom are attached together by ultrasonic welding at two or more spots on each longitudinal side of the bottom layer.

45. The method of any one of claims 40 to 44, comprising placing a water impermeable layer between the bottom layer and the one or more absorption layers, wherein the water impermeable layer is among the layers attached together by the seam of claim 40 and/ or the seam of claim 42.

46. The method of claim 45, comprising folding at least parts of the longitudinal sides of the water impermeable layer such that folded parts of the water impermeable layer are located between the top side of the top layer and the folded parts of the bottom layer, wherein folded parts of the water impermeable layer are among the layers attached together by the seam of claim 40.

47. The method of any one of claims 40 to 45, wherein the seam is created by means of the sonotrode of any one of claims 31 to 35.

48. The method of any one of claims 40 to 47, wherein the seam is created by means of a sonotrode comprising protrusions arranged in grids of lines, wherein the number of lines of protrusions running in the longitudinal direction is 2 or preferably 3. The method of any one of claims 40 to 48, wherein the sonotrode used for creating the seam of claim 40 comprises protrusions arranged on a plane having at least the length of the seam of claim 40.

The method of any one of claims 40 to 49, wherein the hygiene product is the product of any one of claims 1 to 19.

A hygiene product obtainable by the method according to any one of claims 40 to 50.