WO2018004478A1 - Procédé amélioré de production de tissu non tissé mou - Google Patents

Procédé amélioré de production de tissu non tissé mou Download PDF

Info

Publication number
WO2018004478A1
WO2018004478A1 PCT/TR2016/050202 TR2016050202W WO2018004478A1 WO 2018004478 A1 WO2018004478 A1 WO 2018004478A1 TR 2016050202 W TR2016050202 W TR 2016050202W WO 2018004478 A1 WO2018004478 A1 WO 2018004478A1
Authority
WO
WIPO (PCT)
Prior art keywords
nonwoven fabric
nonwoven
filaments
producing
softness
Prior art date
Application number
PCT/TR2016/050202
Other languages
English (en)
Inventor
Mehmet Fatih ERGÜNEY
Sebnem KEMALOGLU DOGAN
Eylem CANBOLAT
Original Assignee
Hayat Kimya San. A. Ş.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hayat Kimya San. A. Ş. filed Critical Hayat Kimya San. A. Ş.
Priority to PCT/TR2016/050202 priority Critical patent/WO2018004478A1/fr
Publication of WO2018004478A1 publication Critical patent/WO2018004478A1/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives

Definitions

  • the present invention relates to a nonwoven fabric, having improved softness.
  • the present invention relates to a process to produce a nonwoven fabric having improved softness.
  • the present invention further relates to the composition of a nonwoven fabric.
  • the present invention relates to the embossment of a nonwoven fabric.
  • Pilling can result highly undesirable conditions for consumers using disposable absorbent articles. Especially for disposable diapers, babies can swallow those bundles of fibers.
  • the present invention aims to produce nonwoven fabrics having improved softness besides, resistant to pilling and improved mechanical strength.
  • Nonwoven fabrics can be produced by a variety of known processes other than weaving or knitting.
  • the nonwoven fabric properties depend on following aspects to a great extent,
  • Fabric properties of nonwovens range from crisp to soft touch, impossible to tear to extremely weak.
  • the softness of a nonwoven web is an important factor in applications, such as disposable diapers, in which a nonwoven web is in contact with a wearer for an extended period of time.
  • Various methods of increasing the softness of a nonwoven web are known in the art. These methods include wash softening, mechanical stretching, and topical treatment of the web with softening chemicals.
  • Softness can be improved by mechanically post treating a nonwoven. For example, by incrementally stretching the nonwoven web can be made soft and extensible, while retaining sufficient strength for use in disposable absorbent articles. However, if is believed that such mechanical methods would negatively affect the pilling resistance.
  • WO2004005601 discloses a method for producing softer fiber which comprises thermoplastic polymer and additives such as; olefinic elastomers or amides. Glycerol monostearate is used in this process as an antistatic agent. There still exists a need of obtaining softer nonwoven products without losing the strength of nonwoven fabrics under cost consideration of production.
  • the present invention overcomes said problems.
  • mechanically and physically improved nonwoven fabrics are produced. Softer surfaces are obtained without losing strength of the nonwoven fabric by bonding fibers together with emboss roll calendar (18) that is set in decreased temperatures comparing to known techniques.
  • the present invention provides an improved process for producing soft nonwoven webs formed by a mixture of a thermoplastic polymer and additives selected from heat transfer agents such as; glycerol monostearate.
  • the present invention provides a method of obtaining soft nonwoven fabric formed of continuous thermoplastic filaments. Particulary polymer based masterbatch including glycerol monostearate as heat transfer agents provided.
  • the fiber filaments are thermally bonded together by using embossing roll calender (18) having reduced application temperature that is providing softness, bulk and improved strength while retaining other properties such as strength and pilling resistance.
  • said embossing roll calender (18) have specified structure of engravings. These structures of calender engravings can be round, oval, oblong, eklips, polygonal or angular shaped.
  • the materials of the invention can be used for disposable products such as diapers, sanitary napkins or any kinds of hygiene products.
  • the present invention relates to a method of using embossing roll calenders (18) having reduced temperatures. With the improved method, there is provided a nonwoven fabric with improved softness and tensile strength.
  • the process steps of the present invention comprises;
  • Nonwoven fabrics typified by spunbond or melt blown nonwoven fabrics are usually partially thermobonded via an embossing roll (18) in order to prevent the falling-off of fibers which form the nonwoven fabric and by this way to improve the strength of the fabric.
  • spun bonded or melt blown webs are bonded by thermal bonding with application of embossing roll calender (18) having reduced temperatures in contrast with the known technologies.
  • Emboss roll calendar (18) is a thermal bonding calender that has specific design pattern to get embossed patterns on nonwoven web to obtain nonwoven fabric.
  • themoplastic polymer structures are used with glycerol monostearate as an additive having high heat transfer feature that help to transmit heat in deeper points of nonwoven structure in a short time period.
  • glycerol monostearate is used as an additive to transfer heat into deeper points during the thermal calendering process that will help to obtain soft nonwoven products having strong mechanical and physical properties.
  • embossed portions that are responsible of improving mechanical and pilling resistance properties of nonwoven fabric.
  • Embossed portions depth on nonwoven fabric is directly related with the mechanical performance of the fabric. If the fiber filaments are bonded together with high temperatures the applied heat goes deeper and the width of the embossed portions increases which will end as strong nonwoven fabric structures. On the contrary, applying high temperature on nonwoven surface dicreases softness of fabric that is an unwanted phenomena by users. Usually the application ends with the products deformed in several parts of them. In the present invention by using glycerol monostearate, applied heat to bond fibers is decreased, but it is transmitted to deeper points of the nonwoven surface by heat transfer agent. As a result of the application, two important improvement is observed;
  • an emboss roll thermobonding calendar (18) is used to bond fibers to form nonwoven fabric.
  • Said emboss roll calendar (18) has reduced temperatures in contrast with the calender temperatures used in known techniques.
  • polyethylene coating can be applied on polypropylene webs to obtain improved softness but it causes pilling and lack of strength, so there can be a need of using high weight fibers.
  • Nonwoven fabrics in which polypropylene is used as fiber former prevents pilling of fibers comparing to polyethylene coated fibers.
  • thermobonded polypropylene fiber with an embossing roll calender (18) under reduced temperatures allows obtaining nonwoven fabrics having superior softness properties in comparison to other nonwoven fabrics bonded under high temperature embossing roll calenders (18). Furthermore, it is seen that, the strength of nonwoven fabric is increased and the pilling resistance is maintained.
  • FIG. 1 Scheme of bonding process of fibers with emboss roll calendar (18)
  • FIG. 2 Embossed nonwoven fabric structure that is used in Example 1 and Comparative
  • FIG. 3 Embossed nonwoven fabric structure that is used in Example 2 and Comparative Example 2
  • FIG. 4 Embossed nonwoven fabric structure that is used in Example 3 and Comparative Example 3.
  • the present invention relates to method of production of nonwoven fabric comprising thermoplastic polymer based fibers and glycerol monostearate as heat transfer agent.
  • method decreased amount of heat is applied to bond fibers with the help of good heat transfer feature of glycerol monostearate.
  • nonwoven fabric states that in the present invention, fibers are held together by a process of bonding to form a fabric.
  • Fiber refers to structures which are used to form nonwoven fabric.
  • Fabric refers to web of fibers, that is finished by embossing with bonding techniques such as hot calendering.
  • the application temperature refers to the temperature of the calendar roll by touching on the nonwoven web surface.
  • Emboss roll application temperature refers to the calender temperature that is applied directly on nonwoven web surface.
  • the nonwoven fabric properties depend on different criteria such as; type of fiber that is used as raw material, the technology to arrange the fibers, bonding processes that allow holding fibers together, emboss structure of pattern that is applied on nonwoven web structure with the help of heat and pressure. Choosing the right fiber to process the fabric is one of the most important parts of nonwoven manufacturing. Cost effectiveness, easy to use and process according to special properties of the fiber, and further processing are taken into consideration.
  • Non-limiting examples of polymer materials suitable for forming nonwoven fiber such as; rayon, nylon, wool or cotton can be used as natural fabrics and polyesters or acrylics can be used as synthetic fibers.
  • synthetic fibers such as polypropylene, polyethylene, polyester, or polyurethane are used for cheaper, ease of processing conditions and for new and more exacting applications.
  • Nonwoven webs can be produced by different methods of production such as; wet bonded, dry bonded, filament formation spun bonded, or melt blown techniques.
  • Nonwoven webs that are produced by different known methods can be bonded by using different techniques of bonding process and the bonding agents to avoid falling off the fibers and holding them together.
  • Non-limiting examples can be applied on bonding of web such as; mechanical bonding, chemical bonding or thermal bonding.
  • the most preferred bonding technique is thermal bonding by applying heat and pressure with hot calenders.
  • thermal bonding by applying heat and pressure with hot calenders.
  • area bonding point bonding or embossing can be performed.
  • continuous filament webs are bonded by thermal bonding using hot calendering emboss roll.
  • the important parameters are calender pattern, temperature and pressure of rollers that are related with emboss roll.
  • Embossing nonwoven web structure is one of the other critical goal for evaluating performance of nonwoven fabric.
  • Embossing process is the final step in nonwoven fabric production process since it enables to produce a product which is soft, aesthetically decorated and high in bulk.
  • emboss roll calendar (18) temperature and pressure the physical and mechanical properties of the nonwoven fabrics are changing.
  • spun bond process is widely used to produce nonwoven fabrics.
  • Typical spun bond process components are polymer addition (2), additive addition (4), polymer feed (6), extruder (8), quenching system (10), drawing and deposition system (12), conveyor belt
  • a melt solution of a fiber forming polymer or a mixture of polymers is extruded through a system requiring spinnerets in a high velocity current of air. Said formed fibers are deposited on to conveyor belt (14) to form a web. The belt than carries the web to a bonding stage where consolidation of web occurs to form nonwoven fabric.
  • Spun bonded fabrics tend to have low bulk and high strength that allows to be used in many industrial applications.
  • fabrics have strong webs, low elongation and filament diameter in the range of 1 -3 denier and more specifically 1 ,5-2 denier. Small denier is preferred because, homogeny distribution of filaments are required to form web structures which is preferred to be used at top sheet or other water and air pervious layers of hygiene articles.
  • the melt blown process is one of the widely used processes to produce nonwoven fabrics in which the production steps are in the same manner as spun bonded webs. Extruded polymers pass through the holes in a spinneret into a high velocity current of air.
  • melt blown method from spunbond method is an increased force used by the air current which breaks the filaments rather than just drawing them to produce fibers of varying lengths.
  • Melt blown fibers have smaller diameters so that the fiber size is influenced by, process air volume, throughput, temperature, number of holes of spinneret and type of polymer resin. By applying higher process air temperature then melting temperature of the used polymer endless filaments can be obtained by melt blown process.
  • Melt blown fabrics have, filament diameter in the range of 1 -3 denier, more specifically 1 - 1 ,5 denier. Melt blown filament denier is smaller that allows producing hydrophobic and liquid and air impervious web structure. Such materials are preferably used at back sheet or cuffs of diapers or hygiene articles.
  • Thermal bonding in which the fibers bond together when heated under pressure, subjected to heat a bonding agent and pressure.
  • thermal bonding succeeds in the present invention as below;
  • Nonwoven products produced by using spunbond or meltblown processes are used in various applications.
  • Nonwoven products are widely used in medical, hygiene and technical fields such as; medical applications, masks, hygenic products, diapers, incontinence peds, feminine hygiene articles or nappies, bedding, filtration or clothing.
  • Bicomponent multilayer fibers can be used to produce a bonded fabric with one of the components being thepmoplastic to facilitate heat bonding and the other component having property that will enhance the quality of final fabric area density in the process which is controlled by the speed of conveyor belt (14).
  • the created product is relatively stiff, dense and occasionally deformed which is not wanted to be used in hygiene articles or clothing. There is a need to have softer products which are strong enough.
  • a fiber which forms the nonwoven fabric is selected from natural or sythetic fibers; specifically cotton as natural fiber and thermoplastic polymers as synthetic fibers are prefered as raw material, more specifically polypropylene based polymer mixture having 25 to 27 g/10 min melt flow index (MFI) at 230 °C, is selected for the production of nonwoven fabric in the present invention.
  • natural or sythetic fibers specifically cotton as natural fiber and thermoplastic polymers as synthetic fibers are prefered as raw material, more specifically polypropylene based polymer mixture having 25 to 27 g/10 min melt flow index (MFI) at 230 °C, is selected for the production of nonwoven fabric in the present invention.
  • the polymer can be used singly or in combination of one or more species. It can include antistatic agent, flame retardant, synthetic oil, coloring inhibitor, lubricant, dye, heat transfer agent, plasticizer or pigment.
  • glycerol monostearate in the range of 0,5-5 % can be used as heat transfer agent in polymer masterbatch to decrease the emboss roll application temperature.
  • heat transfer agent used in polymer masterbatch is in the range of 1 -3 % and more specifically the used amount of heat transfer agent is around 1 ,5 %.
  • any known technology can be applied to form nonwoven fibers, such as wet bonded, dry bonded, spun bonded or melt blown.
  • more specifically spun bonded or melt blown technology is applied to obtain fibers.
  • the present invention is specifically including a multi-layer nonwoven fabric, consisting at least three layers which are stacked together with known techniques, wherein each of two outer nonwoven fiber layers of multi-layer nonwoven fabric are formed of a spunbond nonwoven fibers and one middle layer can be formed of a melt blown nonwoven fiber or spun bonded fiber, that can be more specifically spunbond (SSS) formed nonwoven fabric.
  • SSS spunbond
  • formed spunbond nonwoven fibers have the diameter of fiber forming the nonwoven fabric is in the range of 1 -3 denier by adjusting the line speed in the range of 700 to 750 m/min.
  • the line speed is adjusted to 720 m/min more specifically, that allows obtaining lighter web structures having improved properties.
  • nonwoven fibers can be bonded with methods of thermal bonding, mechanical or chemical bonding.
  • fibers are more specifically thermally bonded by adjusting the temperature and pressure during embossing.
  • the applied temperature on the web is in the range of 100-180 °C and more preferably it is in the range of 120-150 °C and much more preferably it is in the range of 130-135 °C.
  • the pressure applied by emboss roll on the web structure is in the range of 70-100 N/mm 2 and more preferably it is in the range of 80-85 N/mm 2 .
  • the nonwoven fabric is formed by afore mentioned emboss roll conditions
  • embossing temperature is higher than 180 °C, formed fibers are fused together and impossible to separate.
  • a nonwoven fabric has embossed and non embossed portions that creates bonding and nonbonding areas which effect the softness and strength of nonwoven fabric.
  • a nonwoven fabric having embossed structures which can be in the range of 10-50 figures/cm 2 more specifically 15-30 figures/cm 2 . This enhances softness of nonwoven fabric and provides an excellent feel to the touch.
  • Example 1 Process of preparing nonwoven fabric with the method of the present invention referring to a pattern as shown at FIG. 2
  • Nonwoven fabric sample bonded with an embossing calender having decreased temperature and pressure having emboss pattern of FIG. 2 is prepared by following the steps;
  • Cylindric granulate polypropylene having 0,90 g/cm 3 density is used as raw material in masterbatch.
  • Formed webs at step e are bonded with hot embossing calender roll that have the application temperature of 130-135 °C and 80-85 N/mm 2 pressure.
  • Comparative Example 1 Process of preparing nonwoven fabric with the known methods of referring to pattern as shown at FIG. 2 (Lack of heat transfer agent, increased temperature and pressure)
  • Nonwoven fabric sample bonded with a embossing calender having increased temperature and pressure having emboss pattern of FIG. 2 is prepared by following the steps;
  • Cylindrical granulate polypropylene having 0,90 g/cm 3 density is used as raw material in masterbatch.
  • step b Prepared polymer mixture in step a, is melted and extruded in the line of extruder (8).
  • Example 2 Process of preparing nonwoven fabric with the method of the present invention referring to a pattern as shown at FIG.3
  • Example 1 The procedure of Example 1 is repeated to produce nonwoven fabric sample bonded with a embossing calender having decreased temperature and having emboss pattern of FIG. 3
  • Comparative Example 2 Process of preparing nonwoven fabric with the known methods of referring to pattern as shown at FIG. 3
  • Comparative Example 1 The procedure of Comparative Example 1 is repeated to obtain nonwoven fabric sample bonded with a embossing calender having increased temperature and pressure having emboss pattern of FIG. 3.
  • Example 1 The procedure of Example 1 is repeated to produce nonwoven fabric sample bonded with a embossing calender having decreased temperature and pressure and having emboss pattern of FIG. 4
  • Example 3 Process for preparing nonwoven fabric with the known methods of referring to pattern as shown at FIG. 4
  • Comparative Example 1 The procedure of Comparative Example 1 is repeated to obtain nonwoven fabric sample bonded with a embossing calender having increased temperature and pressure having emboss pattern of FIG. 4.
  • Examples of 1 , 2 and 3 having different emboss structures are obtained by following the method in the present invention.
  • the comparative examples of them are obtained by the method known in the prior art.
  • Tissue Softness Analyzer used as softness measurement equipment.
  • TSA is generally used for the measurements of paper softness.
  • a new method is applied to observe the softness of nonwoven fabric by using Emtec Tissue Softness Analyzer.
  • Nonwoven softness analysis is performed by using TSA as following;
  • the nonwoven sample is attached on the clamping ring of TSA equipment and fastened with screws,
  • the measuring cell measures the force applied on the surface, 5- Obtained softness results are calculated as overall softness and given as a report.
  • the improved method in the present invention can be used in different emboss structures and ends up with high softness and strength results.
  • Martindale pilling test equipment is used to measure the pilling resistance of nonwoven samples.
  • the equipment is calibrated under IS012947 standard.
  • the equipment has two parts of standard felts that are upper and lower felts. Measurement conditions are followed by using IS0139 standards. According to standards the place that is used to measure the pilling resistance of the samples is set at 20( ⁇ 2)°C and %65( ⁇ 2) humidity.
  • the test is performed under TS EN ISO 12945 standards.
  • the nonwoven sample is attached on the upper felt, that has 90 mm diameter
  • Nonwoven sample is prepared with 190 ( ⁇ 5) mm diameter, 4- The nonwoven sample is attached on the lower felt, that has 140 mm diameter,
  • test sample results and the samples which are not tested under pilling equipment are compared with each other.
  • the surface pilling is graded on the following criteria
  • Example 1 , 2 and 3 have superior pilling resistance properties compared to comparative examples 1 , 2 and 3.
  • example 1 product By application of pilling test process on the surface of example 1 product, no pilling is observed. By comparative example 1 product, it is seen that recognizable pilling has started to form.
  • Example 2 product is compared with comparative example 2 product and it is observed that, the pilling resistance of example 2 is better than comparative example 2 again.
  • Example 3 product has recognizable pilling resistance than comparative example 3 product again. The results show that, by example 3 product small amount of pilling has started but in comparative example 3, the fibers are considerably turned off. It can be said that, the best resistance of pilling is observed with the product of example 1.
  • Tensile measurement test is applied by using Zwick strength equipment to evaluate the strength of nonwoven samples.
  • Tensile measurements at maximum force (N/5 cm) are measured with test stripe having 50mm x 250 mm dimensions, 100 mm clamp distance and 100 mm/min testing speed. The results are shown as average values of four single measurements.
  • test is performed under ASTM D882-10 standard as;
  • Nonwoven test sample is prepared having 50 mm of machine direction (MD) and 250 mm of cross machine direction (CD),
  • M D and CD tensile strength values of examples 1 , 2 and 3 products are superior to comparative example 1 , 2 and 3 product's values. The most significant changes can be seen in examples 1 and 2.
  • example 1 product When the result of example 1 product is compared with the comparative example 1 product; it can be said that a recognizable increase in MD and CD strength is observed.
  • MD tensile strength of example 1 product is 31 ,9, and CD tensile strength is 16,7.
  • MD tensile strength of comparative example 1 product is 26,0 and CD tensile strength is 12,0. It has a positive effect on mechanical properties of nonwoven fabric used in industrial applications.
  • M D tensile strength of example 2 product is 35,5, and CD tensile strength is 18,8.
  • MD tensile strength of comparative example 2 product is 25,7 and CD tensile strength is 1 1 ,7.
  • example 3 product Comparing the M D and CD tensile strength test results of example 3 product with comparative example 3 product, it is seen that the MD strength of example 3 product is 26,7 and CD strength is 13,4 wherein MD strength of comparative example 3 product is 25,1 and CD strength of it is 12,0. There is a slight increase in tensile strength of example 3 product. As a result by improving softness and pilling resistance of the nonwoven, strength of the nonwoven fabric is also improved this has considerable effect on the nonwoven fabric.
  • the polypropylene spun bonded nonwoven fabric having light weight is exhibiting excellent feeling to the touch and high softness. Additionally it is observed that the nonwoven fabric of the present invention shows the best resistance to pilling and it has also improved mechanical strength comparing to the products produced with known methods.
  • the nonwoven fabrics produced with the method of invention are particularly employed as a material for hygiene products such as diapers, femcare products or nappies as a part of top sheet, back sheet, panels, cuff, waist parts or ears of baby diapers, adult diapers, incontinence diapers, pant like diapers or feminine hygiene article ears.
  • the method of invention can be applied on web bondings having different emboss structures. According to the test results, shown in table 1 , examples 1 , 2 and 3 having different emboss structures have improved properties.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

L'invention concerne un procédé de production d'un tissu non tissé présentant une souplesse et une résistance à la traction améliorées. La présente invention concerne un tissu non tissé comprenant un mélange de polymères à base de polypropylène et du monostéarate de glycérol en tant qu'additif qui contribue à transférer la chaleur appliquée sur la surface non tissée. La présente invention concerne en outre un procédé de collage de bandes à une température et à une pression réduites pour obtenir des produits non tissés ayant une souplesse, une résistance au boulochage et une résistance à la traction améliorées.
PCT/TR2016/050202 2016-06-29 2016-06-29 Procédé amélioré de production de tissu non tissé mou WO2018004478A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/TR2016/050202 WO2018004478A1 (fr) 2016-06-29 2016-06-29 Procédé amélioré de production de tissu non tissé mou

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/TR2016/050202 WO2018004478A1 (fr) 2016-06-29 2016-06-29 Procédé amélioré de production de tissu non tissé mou

Publications (1)

Publication Number Publication Date
WO2018004478A1 true WO2018004478A1 (fr) 2018-01-04

Family

ID=56611548

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2016/050202 WO2018004478A1 (fr) 2016-06-29 2016-06-29 Procédé amélioré de production de tissu non tissé mou

Country Status (1)

Country Link
WO (1) WO2018004478A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020096533A3 (fr) * 2018-11-09 2020-08-20 Hayat Kimya Sanayi Anonim Sirketi Lingette humide à distribution facile
CN112080858A (zh) * 2020-08-31 2020-12-15 临海市恒泰无纺布有限公司 一种熔喷布的生产方法、及接收辊筒
WO2021138512A1 (fr) 2020-01-03 2021-07-08 Incyte Corporation Polythérapie comprenant des inhibiteurs d'a2a/a2b et de pd-1/pd-l1
WO2022088996A1 (fr) * 2020-10-30 2022-05-05 The Procter & Gamble Company Non-tissé et articles absorbants les comprenant
WO2022147092A1 (fr) 2020-12-29 2022-07-07 Incyte Corporation Polythérapie comprenant des inhibiteurs a2a/a2b, des inhibiteurs pd-1/pd-l1 et des anticorps anti-cd73
US11673894B2 (en) 2018-02-27 2023-06-13 Incyte Corporation Imidazopyrimidines and triazolopyrimidines as A2A / A2B inhibitors
US11873304B2 (en) 2018-05-18 2024-01-16 Incyte Corporation Fused pyrimidine derivatives as A2A/A2B inhibitors
US11884665B2 (en) 2019-01-29 2024-01-30 Incyte Corporation Pyrazolopyridines and triazolopyridines as A2A / A2B inhibitors
US11999740B2 (en) 2018-07-05 2024-06-04 Incyte Corporation Fused pyrazine derivatives as A2A / A2B inhibitors

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5244724A (en) * 1992-05-08 1993-09-14 Amoco Corporation Self-bonded fibrous nonwoven webs having improved softness
US20040005457A1 (en) * 2002-07-03 2004-01-08 Kimberly-Clark Worldwide, Inc. Methods of improving the softness of fibers and nonwoven webs and fibers and nonwoven webs having improved softness
US6740609B1 (en) 2000-08-15 2004-05-25 Polymer Group, Inc. Soft polypropylene melt spun nonwoven fabric
US20100330861A1 (en) * 2009-06-25 2010-12-30 Techmer Pm, Llc Hydrophobic additive for use with fabric, fiber, and film

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5244724A (en) * 1992-05-08 1993-09-14 Amoco Corporation Self-bonded fibrous nonwoven webs having improved softness
US6740609B1 (en) 2000-08-15 2004-05-25 Polymer Group, Inc. Soft polypropylene melt spun nonwoven fabric
US20040005457A1 (en) * 2002-07-03 2004-01-08 Kimberly-Clark Worldwide, Inc. Methods of improving the softness of fibers and nonwoven webs and fibers and nonwoven webs having improved softness
WO2004005601A1 (fr) 2002-07-03 2004-01-15 Kimberly-Clark Worldwide, Inc. Procedes destines a ameliorer la douceur des fibres et des toiles non tissees, fibres et toiles non tissees a douceur amelioree
US20100330861A1 (en) * 2009-06-25 2010-12-30 Techmer Pm, Llc Hydrophobic additive for use with fabric, fiber, and film

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11673894B2 (en) 2018-02-27 2023-06-13 Incyte Corporation Imidazopyrimidines and triazolopyrimidines as A2A / A2B inhibitors
US11873304B2 (en) 2018-05-18 2024-01-16 Incyte Corporation Fused pyrimidine derivatives as A2A/A2B inhibitors
US11999740B2 (en) 2018-07-05 2024-06-04 Incyte Corporation Fused pyrazine derivatives as A2A / A2B inhibitors
WO2020096533A3 (fr) * 2018-11-09 2020-08-20 Hayat Kimya Sanayi Anonim Sirketi Lingette humide à distribution facile
US11884665B2 (en) 2019-01-29 2024-01-30 Incyte Corporation Pyrazolopyridines and triazolopyridines as A2A / A2B inhibitors
WO2021138512A1 (fr) 2020-01-03 2021-07-08 Incyte Corporation Polythérapie comprenant des inhibiteurs d'a2a/a2b et de pd-1/pd-l1
CN112080858A (zh) * 2020-08-31 2020-12-15 临海市恒泰无纺布有限公司 一种熔喷布的生产方法、及接收辊筒
WO2022088996A1 (fr) * 2020-10-30 2022-05-05 The Procter & Gamble Company Non-tissé et articles absorbants les comprenant
WO2022088786A1 (fr) * 2020-10-30 2022-05-05 The Procter & Gamble Company Appareil et processus de déformation d'un voile
WO2022147092A1 (fr) 2020-12-29 2022-07-07 Incyte Corporation Polythérapie comprenant des inhibiteurs a2a/a2b, des inhibiteurs pd-1/pd-l1 et des anticorps anti-cd73

Similar Documents

Publication Publication Date Title
WO2018004478A1 (fr) Procédé amélioré de production de tissu non tissé mou
EP3187635A1 (fr) Tissu doux non-tisse
JP6633783B2 (ja) 伸張性不織布
KR100384663B1 (ko) 복합섬유 부직포
KR100761571B1 (ko) 터프트 형성된 섬유질 웨브
EP3452652B1 (fr) Bande non tissée comprenant des fibres thermofusibles et des impressions de liaison formant un motif
US20140072767A1 (en) Nonwoven webs with enhanced loft and process for forming such webs
EP2630285B1 (fr) Tissu non-tissé, tissu stratifié, produit non-tissé, fibre multi-composants, voile, ainsi qu'un procédé de fabrication du tissu non-tissé
US10767296B2 (en) Multi-denier hydraulically treated nonwoven fabrics and method of making the same
WO2002098653A1 (fr) Nontisse presentant des zones de masse surfacique differente
JP2008509295A (ja) 延伸された弾性不織布
US10737459B2 (en) Hydraulically treated nonwoven fabrics and method of making the same
WO2015175676A1 (fr) Non-tissé à motifs et son procédé de fabrication au moyen d'un procédé de séchage à l'atmosphère
KR20180056892A (ko) 기능성이 향상된 크림프 스펀본드 부직포 및 그 제조 방법
KR20050018939A (ko) 섬유 및 부직웹의 연성 개선 방법 및 개선된 연성을 가진섬유 및 부직웹

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16748171

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16748171

Country of ref document: EP

Kind code of ref document: A1