KR101832073B1 - Manufacturing method of antibacterial non-woven fabrics for an absorbent article - Google Patents

Manufacturing method of antibacterial non-woven fabrics for an absorbent article Download PDF

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KR101832073B1
KR101832073B1 KR1020160174439A KR20160174439A KR101832073B1 KR 101832073 B1 KR101832073 B1 KR 101832073B1 KR 1020160174439 A KR1020160174439 A KR 1020160174439A KR 20160174439 A KR20160174439 A KR 20160174439A KR 101832073 B1 KR101832073 B1 KR 101832073B1
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South Korea
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antibacterial
nonwoven fabric
weight
absorbent article
latex
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KR1020160174439A
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Korean (ko)
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장연희
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장연희
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00Inking and printing with a printer's forme
    • B41M1/10Intaglio printing ; Gravure printing
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H13/00Other non-woven fabrics
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/01Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with hydrogen, water or heavy water; with hydrides of metals or complexes thereof; with boranes, diboranes, silanes, disilanes, phosphines, diphosphines, stibines, distibines, arsines, or diarsines or complexes thereof
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/77Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
    • D06M11/79Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/693Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00Physical properties
    • D10B2401/13Physical properties anti-allergenic or anti-bacterial
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2509/00Medical; Hygiene
    • D10B2509/02Bandages, dressings or absorbent pads
    • D10B2509/026Absorbent pads; Tampons; Laundry; Towels

Abstract

The present invention relates to a method for manufacturing antibacterial non-woven fabric for an absorbent article. The method for manufacturing the antibacterial non-woven fabric for the absorbent article according to the present invention comprises the steps of: mixing an antibacterial aqueous solution containing 3-6 wt% of complex zeolite, 4-10 wt% of latex and 87-93 wt% of water at 35-50°C; and covering the antibacterial aqueous solution on one surface of the non-woven fabric in a gravure printing manner. According to the present invention, the method for manufacturing the antibacterial non-woven fabric for the absorbent article covers and couples the antibacterial aqueous solution, including the latex containing the complex zeolite substituted with a metal element, on the one surface of the non-woven fabric in a gravure printing manner to make a manufacturing process convenient and to enable an antibacterial agent to be adsorbed in air pores on the surface of the non-woven fabric in a proper state, thereby saving antibacterial processing costs and providing the absorbent article with regular antibacterial performance. In addition, the absorbent article manufactured by the manufacturing method according to the present invention makes silver (Ag), zinc (Zn) and natrium (Na) components act as an alkali sterilizer as dissolved in body fluids or water of a user as well as enhances a health promotion effect in accordance with far-infrared ray radiation and negative ion occurrence caused by an action unique to the zeolite to efficiently sterilize bacteria existing in the absorbent article such as diapers and sanitary pads, thereby being very eco-friendly to a human body for example, alleviating a side effect such as skin eruptions and itchiness without stimulating a skin even though worn for a long time.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an antibacterial nonwoven fabric for absorbent articles,

The present invention relates to a method for producing an antibacterial nonwoven fabric for absorbent articles, and more particularly, to a method for producing an antibacterial nonwoven fabric for absorbent articles by applying an antibacterial aqueous solution composed of a latex containing a composite zeolite on one surface of a nonwoven fabric by gravure printing, Hygiene products such as diapers and sanitary napkins manufactured therefrom have a cost reduction and a manufacturing method of an antibacterial nonwoven fabric for absorbent articles which are excellent in antibacterial and deodorizing functions as well as health promoting effect by generation of negative ions and generation of anion.

In general, polyolefin-based short fibers of polyethylene, polypropylene and copolymers thereof are widely used as materials for nonwoven fabrics due to their unique low melting point and excellent chemical resistance. Such nonwoven fabrics are used for machine operation, heat treatment A nonwoven fabric bonded with a resin, a needle punch, a spun bond, a spun lace, an embossed film, a wet nonwoven fabric, or the like as a bonded fabric made by binding or entangling a fiber aggregate by physical treatment or chemical treatment such as adhesion, It belongs to this.

Such nonwoven fabrics can be produced by various methods, such as needle punching method, chemical bonding method, thermal bonding method, melt blown method, spun lace method, stitch bond method and spun bond method. Nonwoven fabrics made of polyolefin-based staple fibers are used as sanitary articles such as napkins and diapers because of their soft feel and high strength. In particular, the polypropylene staple fiber is processed into a thermal bond nonwoven fabric by calendaring or air-through bonding due to its unique low melting point and excellent chemical resistance, and is used for disposable diapers, sanitary napkins, sanitary napkins, medical wipes, Masks, filter bags for vacuum cleaners, and table cover fabrics.

However, these nonwoven fabrics that we use on a daily basis often cause discomfort due to various microorganisms such as fungi and fungi existing in living environment, causing skin disorder of human skin, deterioration of fibers, deterioration phenomenon and odor. Appropriate measures have been demanded.

As a conventional antibacterial and deodorizing method for imparting antibacterial properties to a nonwoven fabric, there is known a method of producing an antibacterial nonwoven fabric by using an antibacterial material. In general, the antibacterial material is physically attached to the surface of the fiber A method of treatment and a method of mixing it in a polymer and spinning are mainly performed. In the case of a quaternary ammonium type which is an organic antibacterial agent which is an antibacterial substance used in a post treatment method, whiteness after processing is lowered and there are weak defects in chlorine bleaching agent Durability due to detachment of antimicrobial agent such as friction or washing is lowered and antibacterial property is liable to cause decomposition and evaporation due to heat at a high temperature and the decomposition products and derivatives thereof are likely to change and it is difficult to ensure safety to human body.

In addition, although conventional antibacterial ceramics are advantageous in terms of durability and safety, they absorb a large amount of water due to their adsorption characteristics, adversely affecting workability in the spinning process in the production of nonwoven fabric, and additionally, And there is a problem that the moisture proofing function is not good when used as a nonwoven fabric product. Since non-porous inorganic ceramics containing conventional silver, copper, zinc compounds and zirconium compounds are difficult to uniformly disperse in the polymer even though the average particle size is uniformly adjusted to several micrometers (占 퐉) There is a disadvantage that considerable difficulty is caused in workability, such as the rise and the occurrence of embroidery.

Particularly, when the silver (Ag) is treated with fine particles to improve its dispersibility when mixed with a resin material and the antimicrobial resin is molded, dissociation of silver (Ag) ions having strong oxidizing power is more easily occurred, , Bacteria, mold fungi, etc., by stopping the function of the enzyme needed to breathe them. This is because the antioxidant is sterilized by inhibiting the metabolism of germs and the electrical load of silver (Ag) released by the metal suppresses the reproductive function of germs.

A representative prior art for improving the antibacterial property of the nonwoven fabric is disclosed in Korean Patent Publication No. 10-0536004, wherein 10 to 20 parts by weight of chitosan, 2.0 to 4.0 parts by weight of a chitosan reaction catalyst composed of a quaternary ammonium salt, 0.5 to 1.0 part by weight of an absorbent composed of a copolymer of ethylene oxide and ethylene oxide and 75 to 85 parts by weight of a yellowing agent releasing far-infrared rays was used to prepare a kiss roll on a polyamide or polyolefin long fiber spunbond nonwoven fabric. (kiss-roll) or a spray dispersion method, followed by drying. There is disclosed a process for producing a spunbonded nonwoven fabric having far-infrared radiation and antimicrobial deodorization, and Japanese Patent Application Laid-Open No. 10-2006-0003787 The non-yellowing silver is produced without changing the color of the nonwoven fabric widely used Discloses a method for producing a functional nonwoven fabric capable of enhancing an effect on the human body and a living body by allowing anion to be released at an amount of 500 or more per 1 cc of air by synthesizing an anionic material while being subjected to antibacterial treatment.

Korean Patent Registration No. 10-1164130 discloses a composition for preventing skin rash comprising (a) a ginseng extract, (b) iris extract, and (c) a Rhus verniciflua extract, wherein the composition is formed by coating Non-woven fabrics for prevention of skin rash comprising (a) 35-48 wt% of a bank extract, (b) 38-63 wt% of iris extract, and (c) 2-14 wt% of a Rhus verniciflua extract, It can prevent or prevent baby skin rash caused by harmful bacteria growth due to high temperature and high humidity condition inside the diaper due to antibacterial effect and ammonia deodorizing effect.

Also, Korean Patent Laid-Open Publication No. 10-2016-0008479 discloses a nonwoven fabric which is synthesized singly or in combination of two or more of viscose rayon, polyester, polypropylene, and polyetylene; The nonwoven fabric was supplied with power at a temperature of 40 ° C to 50 ° C while supplying power to the plurality of silver powers while supplying power to the power source while alternating between positive and negative powers so that Ag was eluted with 8 to 10 PPM And the mixture is stirred and mixed with the water tank in an amount of 0.3 to 2%, and then the nonwoven fabric is impregnated in a water bath, dehydrated and dried to produce a silver nonwoven fabric.

Korean Patent Publication No. 10-1646745 discloses a method for producing an anti-fungal anti-microbial antistatic nonwoven fabric product, wherein the antibacterial antiviral antiviral non-woven fabric product according to the present invention comprises a zinc zeolite catalyst having a size of 1 nm to 990 nm By incorporating liquid zinc zeolite into nonwoven products, it is possible to produce nonwoven products having excellent antimicrobial antiviral function without any preservative or oil, and can be sprayed on nonwoven products with high concentration and small amount, so that antibacterial products such as diapers, Applicable. In addition, since a very small amount of zinc zeolite in the nano unit is mixed with water, it is harmless to the human body, has excellent durability, and can remove mold and virus simultaneously.

In addition, Korean Patent Publication No. 10-1646745 discloses a method for producing a nonwoven fabric by mixing an antimicrobial agent and a polymer selected from the group consisting of charcoal, Zn, Cu and Mn nanocomposites and melt- So that the harmful gas harmful to the human body can be adsorbed, thereby effectively removing the malodor of the shoe insole or the harmful gas generated in the automobile.

On the other hand, the present invention has developed an antibacterial aqueous solution composed of a latex containing a composite zeolite substituted with a metal element such as silver (Ag), zinc (Zn), sodium (Na) And hygienic products such as diapers and sanitary napkins manufactured therefrom have excellent antibacterial and deodorizing functions as well as health promoting effect due to generation of anion and far-infrared rays, And the present invention has been completed.

For reference, far-infrared rays are close to the energy curve most beneficial to the human body, and the central part of the human body maintains body temperature over 35 ° C, thereby improving blood flow and relieving fatigue by promoting metabolism. Vitamin, or oxygen in the air. Various pollutants in the air such as cigarette smoke, sulfur dioxide, nitrogen oxides, carbon monoxide, ozone, and various organic substances form cations. The anion is known to neutralize and remove these cations to keep the surrounding air clean and fresh.

In addition, cations neutralize and remove bacteria and dust, pollen fungus, and polluted particles by allowing them to freely float to make air turbulent, while anions neutralize and remove them. Typically, anions are elements of air charged with negative charges By neutralizing and eliminating harmful cations, it cleanses blood, stimulates nervous stability and fatigue, promotes appetite, stimulates cell activation, and makes life viable.

According to the results of the researches so far known, the amount of negative ions required by the human body during the day is 700 / cm3, whereas the concentration of negative ions in the city is about 30 ~ 150 / cm3 and the concentration of the positive ions is 1000 ~ 1500 / Cm < 3 >. On the other hand, in the forests, there are large quantities of anions ranging from 2000 to 2500 / cm3, so when the stress is severely affected or the body is fatigued, the positive ions generated in the body are neutralized when they are in anion-rich forests. In addition, anion-rich air is known to eliminate headaches, inhibit free histamine, a neurohormone that causes respiratory disease, and anion to purify blood, improve appetite and enhance concentration and body immunity.

Korean Registered Patent No. 10-0536004 (Registration date: December 06, 2005) Korean Patent Publication No. 10-2006-0003787 (published on Jan. 11, 2006) Korean Registered Patent No. 10-1164130 (Registration date: 2012. 07. 03) Korean Patent Laid-Open Publication No. 10-2016-0008479 (published on Jan. 22, 2016) Korean Registered Patent No. 10-1646745 (Registered on Feb. 2016)

An object of the present invention is to solve the problems associated with the use of an antimicrobial agent which is unsuitable for use on a nonwoven fabric made of a sanitary product and to solve the problem of filing of the antimicrobial agent caused by uneven dispersion of the antimicrobial agent. By coating an antimicrobial aqueous solution composed of a latex containing a composite zeolite substituted with a metal element such as zinc (Zn) and sodium (Na) by a gravure printing method on the one surface of the nonwoven fabric, the manufacturing process is simple and the antibacterial treatment cost is reduced And hygienic products such as diapers and sanitary napkins manufactured therefrom are provided with a method of manufacturing an antibacterial nonwoven fabric for an absorbent article which is excellent in antibacterial and deodorizing functions as well as health promoting effect due to emission of far-infrared rays and generation of anion.

The method for producing an antibacterial nonwoven fabric for an absorbent article according to the present invention comprises mixing an antibacterial aqueous solution containing 3 to 6% by weight of a composite zeolite, 4 to 10% by weight of a latex and 87 to 93% by weight of water at 35 to 50 ° C, Characterized in that the aqueous solution is coated on one surface of the nonwoven fabric by gravure printing.

According to a preferred embodiment of the present invention, the complex zeolite has the formula (Ag, Zn, Na) 12 [(AlO 2 ) (SiO 2 )] 12 ˙xH 2 O (x is a variable according to the water content) (Al 2 O 3 ) in an amount of 27 to 30 parts by weight, silica (SiO 2 ) in an amount of 32 to 35 parts by weight, silver (Ag) in an amount of 0.5 to 1 part by weight 5.5 to 6.5 parts by weight of zinc and 5.5 to 6 parts by weight of sodium and the latex is a styrene-butadiene latex (SB-latex) having a solid content of 45 to 50% And is 180 to 200 cps (25 DEG C).

Further, the antibacterial aqueous solution is coated on one surface of the nonwoven fabric by gravure printing method, and then the embossing treatment is carried out or the drum drying device is passed through to solidify the printing.

The method for producing an antibacterial nonwoven fabric for absorbent article of the present invention is a method in which an antibacterial aqueous solution composed of a latex containing a complex zeolite substituted with a metal element is applied on one surface of a nonwoven fabric by gravure printing method, The antibacterial agent can be adsorbed in a state suitable for the antibacterial agent, so that the antibacterial treatment cost can be reduced and an absorbent article having uniform antibacterial performance can be provided.

In addition, the absorbent article manufactured by the manufacturing method of the present invention is not limited to silver (Ag), zinc (Zn), and sodium (Na) components as well as health enhancing effect by the emission of far infrared rays and generation of negative ions by the action specific to zeolite, It is possible to effectively sterilize germs present in absorbent articles such as diapers and sanitary napkins, and to prevent side effects such as skin rashes and itching without irritating the skin even when worn for a long period of time, There is a very friendly effect on.

Hereinafter, a method for producing an antibacterial nonwoven fabric for absorbent article according to the present invention will be described, but it will be understood that those skilled in the art (hereinafter referred to as " a person skilled in the art " And is not meant to limit the technical spirit and scope of the present invention.

The method for producing an antibacterial nonwoven fabric for an absorbent article according to the present invention comprises mixing an antibacterial aqueous solution containing 3 to 6% by weight of a composite zeolite, 4 to 10% by weight of a latex and 87 to 93% by weight of water at 35 to 50 ° C, The aqueous solution is applied on one surface of the nonwoven fabric by gravure printing and then bonded, followed by embossing or passing through a drum drying device to make the printing firm.

First, the composite zeolite is silver (Ag), zinc (Zn) and sodium (Na) and metal element is as a combination of a substituted zeolite such, formulas (Ag, Zn, Na) 12 [(AlO 2) (SiO 2 ) 12 占 H H 2 O (x is a variable according to the amount of water), an average particle size of 1 to 3 占 퐉, a specific gravity of 0.3 to 0.5, and 27 to 30 parts by weight of alumina (Al 2 O 3 ) 32 to 35 parts by weight of silver (SiO 2 ), 0.5 to 1 part by weight of silver (Ag), 5.5 to 6.5 parts by weight of zinc (Zn) and 5.5 to 6 parts by weight of sodium (Na).

Zeolite (zeolite), commonly referred to, is a term collectively referred to as a crystalline aluminum silicate mineral which collectively refers to a mineral having an alkali metal and an alkaline earth metal bonded to an anion generated by the combination of aluminum oxide and silicate oxide. (Si, Al) O 4 , which is a kind of hydrated aluminum silicate mineral mainly containing an alkali metal or an alkaline earth metal, has a structure in which a tetrahedron of a (Si, Al) O 4 is bonded in a cubic network. (WmZnO 2 ) nnH 2 O (W is Na, Ca, Ba, Sr, and Z = Si + Al). The composition is similar to that of feldspar or quartz, but feldspar is quartz SiO 2 , part of Si in a three-dimensional network in which the diamond-like tetrahedral structure is endlessly connected by Al, while zeolite is the normal rule of this network Is broken and there is a gap in the skeleton, it is possible to adsorb a large amount of water at the same time while having molecular sieve function by this gap.

The major efficacy of zeolite revealed so far is that it promotes the flow of blood due to the high far-infrared emissivity and emits waste matter in the body. The adsorption action by the capillary phenomenon of the porous rock removes odor and contaminants, adsorbs bacteria, , Disassemble. In addition, the ion exchange function removes impurities in the liquid to increase the activity of growth and development, brain activity, reproductive function, hormone production and activity, cell activation and metabolism, as well as resonance It has been shown that it is effective for the elderly diseases such as hypertension, diabetes, circulatory disorder and the like by promoting the metabolism by effectively discharging the wasted material between the cells.

As a result of many experiments, the present inventors have found that the composite zeolite contained in the antibacterial aqueous solution of the present invention can be produced by mixing silver (Ag), zinc (Zn) and sodium (Na) (Al 2 O 3 ) in an amount of 27 to 30 parts by weight, silica (SiO 2 ) in an amount of 32 to 35 parts by weight, silver (Ag) in an amount of 0.5 to 1 part by weight, zinc (Ag) is the most thermally conductive metal among the metals, and when it touches the silver surface, the heat of the contact surface is rapidly discharged to the opposite side. And "Dongbibogam" is good for the prevention and treatment of women's diseases such as cold, It is known to be effective for strong sterilization power, far infrared ray emission, negative ion generation, antibacterial antifungal action, silver (Ag + ) release, air pollutant removal, human growth and cell regeneration.

In addition, zinc (Zn) substituted with the composite zeolite has antioxidative action to delay the aging of the skin, to activate the cells to prevent destruction, and to remove harmful active oxygen in the body. And sodium (Na) is a kind of minerals distributed throughout the body. It mainly exists in the extracellular fluid and maintains the osmotic pressure of the extracellular fluid and maintains the extracellular fluid volume, and accounts for about 0.15-0.2% of the human body weight. Of these, about 50% are present in the extracellular fluid, 40% in the skeleton, and about 10% in the intracellular fluid, and play an important role in cell mass exchange with potassium (K) in the body. Especially, as a function of controlling osmotic pressure, the ratio of potassium and sodium in the inside and outside of the cell is kept constant to maintain a constant osmotic pressure.

Since the silver (Ag), zinc (Zn) and sodium (Na) components in the composite zeolite are dissolved in the user's body fluids and water, they act as alkaline fungicides. Therefore, the bacteria present in the diaper or sanitary napkin The composite zeolite has an average particle size within a range of 1 to 3 占 퐉 and a specific gravity of 0.3 to 0.5. The latex aqueous solution has an average particle size of 1 to 3 占 퐉 and a specific gravity of 0.3 to 0.5, It is possible to satisfy both the dispersibility, the adhesion and the excellent adsorptivity within the maximum particle size, and it is preferable that the maximum particle size does not exceed 4 탆.

On the other hand, silver (Ag) is 27 to 30 parts by weight of silica by replacing the zinc (Zn) and sodium (Na) component constituting the zeolite with silver (Ag), alumina (Al 2 O 3) contained in the composite zeolite ( SiO 2) 32 ~ 35 parts by weight, are (Ag) 0.5 ~ 1 weight part, zinc (Zn) 5.5 ~ 6.5 parts by weight of sodium (Na) 5.5 ~ 6 composite zeolite {(Ag being the composition in parts by weight, Zn, Na) 12 [(AlO 2 ) (SiO 2 )] 12 xH 2 O, where x is a variable depending on the water content.

In addition, the present invention relates to a binder used for binding an antibacterial aqueous solution to a nonwoven fabric, wherein latex and water are mixed in an appropriate amount. Usually, latex means a resin material used for making rubber, (Styrene Butadiene) -Latex, MB (Methylmethacrylate Butadiene) -Latex, NB (Acrylonitrile Butadiene) -Latex, PVA (Polyvinyl acetate) -Latex and Acryl-Latex. And is melted to form a film. The properties of the film such as hardness, flexibility, texture, adhesion, color retention, and chemical resistance depend on the type and composition of the resin.

The latex to be used in the present invention is not particularly limited, but it is most preferable to use styrene-butadiene latex prepared by stirring and emulsifying styrene and butadiene with an emulsifier, a polymerization initiator, a molecular weight regulator, etc., followed by radical polymerization Styrene butadiene latex, SB-Latex) was found to be most suitable for human skin and suitable for adsorbing the antibacterial aqueous solution on the surface of the nonwoven fabric. Since the latex has a solid content of 45 to 50% and a viscosity of 180 to 200 cps (at 25 ° C), the surface tension is maintained at about 55 to 60 dyne / cm, so that the latex has excellent dispersibility and mixing property with the composite zeolite and water. Therefore, it was studied that the adhesion of the antibacterial aqueous solution by the gravure printing method is good as well as the touch and durability.

As described above, the antibacterial aqueous solution bonded to one surface of the nonwoven fabric according to the production method of the present invention is applied in an amount of about 0.2 to 0.7 g / m 2 on the basis of the solid content after drying, thereby fully exhibiting its effect.

The present invention also relates to a process for preparing a nonwoven fabric by mixing an antibacterial aqueous solution containing 3-6 wt% of a composite zeolite, 4-10 wt% of a latex and 87-93 wt% of water at 35-50 캜, The antibacterial aqueous solution is preferably melted at a warm temperature of 35 to 50 DEG C so that the antibacterial aqueous solution penetrates into the spaces of the nonwoven fabric well, and gravure printing is performed by using a copper plate This is a method of printing on a large plate of copper plate made by corrosion or sculpture by a concave printing method at a high speed in a manner similar to a rotation by using a cylinder.

The gravure printing method according to the present invention requires smoothness of the surface. However, in the case of a material having a high amount of an antibacterial aqueous solution to be transferred, such as a nonwoven fabric used for a diaper or a sanitary napkin, The antibacterial aqueous solution can be printed in a predetermined pattern so that the application range can be arbitrarily set, thereby reducing the cost of antibacterial treatment. In addition, a visual effect can be imparted by adding a small amount of aqueous ink or the like . The non-woven fabric to which the antibacterial aqueous solution is bonded can be continuously manufactured by embossing or passing through a drum dryer or the like in order to firmly perform printing, so that the productivity of the product can be greatly improved.

Therefore, the gravure printing method according to the present invention can be said to be advantageous in all aspects such as the manufacturing process, the raw material cost, the productivity, etc. compared with the spray dispersion method and the impregnation method for the nonwoven fabric or the nonwoven fabric to which the antimicrobial agent is added.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it should be understood that the invention may be embodied in many other specific forms without departing from the spirit or essential characteristics thereof.

[Example 1]

An antibacterial aqueous solution prepared by mixing an antibacterial aqueous solution containing 3% by weight of composite zeolite, 7% by weight of latex and 90% by weight of water at 35 to 50 ° C was applied on one side of the nonwoven fabric by gravure printing method, An antibacterial nonwoven fabric coated on a nonwoven fabric in an amount of about 0.5 g / m 2 on a solid basis was prepared.

[Example 2]

An antibacterial aqueous solution prepared by mixing an antibacterial aqueous solution containing 6% by weight of composite zeolite, 7% by weight of latex and 87% by weight of water at 35 to 50 캜 was applied on one side of the nonwoven fabric by gravure printing method, An antibacterial nonwoven fabric coated on a nonwoven fabric in an amount of about 0.5 g / m 2 on a solid basis was prepared.

[Experimental Example 1] - [Experimental Example 3]

For the far infrared ray emission, anion generation and antimicrobial test on the composite zeolite used in the present invention, the test results of the respective tests commissioned by the Korean Institute of Construction Materials (1465-4 Seocho 3-dong, Seocho-gu, Seoul, Korea) Table 3].

Emissivity (5 to 20 탆) Radiant energy (W / ㎡) 0.923 3.73 × 10 2

1) This test was conducted at 40 ° C, and the results were compared with BLACK BODY using FT-IR Spectrometer.

Anion (ION / cc) 9828

1) Test method: KICM-FIR-1042

2) Test piece: Cylinder of inner diameter = 44 (mm) and height = 297 (mm) - 1.0 g

3) The test was conducted under the condition of temperature 21 ℃, humidity 45% and air anion count 73 / cc using the charge particle measuring device. The result of measurement of the anion released from the object to be measured is expressed as ION number per unit volume.

Test Items Test result Initial concentration
(CFU / 40p)
After 24 hours concentration
(CFU / 40p)
Bacterial reduction rate
(%)
By E. coli
Antibacterial test
BLANK 422 2856 -
Antimicrobial agent 422 One 99.8

1) Test method: KICM-FIR-1002

2) Strain used: Escherichia coli ATCC 25922

[Experimental Example 4]

The deodorization rate of the composite zeolite used in the present invention is shown in Table 4 below, which was measured by a Korean Yarn Fabric Test Research Institute (892-64, Jagi 2-dong, Dongdaemun-gu, Seoul)

Gas detection method Deodorization rate (%) 5 minutes 94.1 15 minutes > 98.3 30 minutes > 98.3 60 minutes > 98.3

1) Test piece: 5 × 5 ㎠

2) Test gas: ammonia

3) Amount of injection: 8 μl

4) Test vessel: 3 L

5) Deodorization rate (%) = (Cb - Cs) / Cb 100

 - Cb: BLANK, the concentration of the test gas remaining in the test vessel after each time

 - Cs: the concentration of the test gas remaining in the test vessel after each elapse of time

[Experimental Example 5]

Table 5 shows the results of the tests carried out by the FITI test institute (498, Worryong Road, Daegu, Korea) for the antibacterial test on the nonwoven fabric according to Examples 1 and 2.

division BLANK Untreated Example 1 Example 2 Strain 1 Initial number of bacteria 2.4 × 10 4 2.4 × 10 4 2.4 × 10 4 2.4 × 10 4 After 18 hours 2.0 × 10 6 5.0 × 10 5 1.1 x 10 3 <10 Bacteriostatic reduction rate - 75.0 99.9 99.9 Strain 2 Initial number of bacteria 2.2 x 10 4 2.2 x 10 4 2.2 x 10 4 2.2 x 10 4 After 18 hours 2.0 × 10 7 2.2 x 10 7 6.6 x 10 3 <10 Bacteriostatic reduction rate - 0 99.9 99.9

1) Test method: KS K 0693: 2010: Number of bacteria, reduction rate of bacterium%

2) Strain used: Strain 1 - Staphylococcus aureus ATCC 6538

Strain 2 - Klebsiella pneumoniae ATCC 4352

As described above, in the antibacterial nonwoven fabric for absorbent article manufactured by the manufacturing method of the present invention, an aqueous antibacterial solution composed of a latex containing a composite zeolite substituted with a specific metal element is applied on one side of the nonwoven fabric by gravure printing method It has been confirmed that it has excellent antistatic function in addition to health promotion effect, antibacterial and deodorizing function due to generation of far-infrared rays and anion, and thus it is possible to prevent skin rashes and troubles caused by toxins produced by harmful bacteria in sanitary products such as diapers and sanitary napkins It is possible to achieve a significantly differentiated quality compared to existing products.

Therefore, the antibacterial nonwoven fabric for absorbent article manufactured as described above can be variously substituted, modified and changed by those skilled in the art without departing from the technical idea of the present invention, so that disposable diapers and sanitary napkins as well as sanitary wear for adults and infants, It can be used in various applications and forms as an environment-friendly material for use effectively in various functional products such as personal hygiene materials, clothes, bags, sporting goods, protective clothing, bed cover and surgical gown.

Claims (6)

  1. An antibacterial aqueous solution containing 3 to 6% by weight of a composite zeolite, 4 to 10% by weight of a latex and 87 to 93% by weight of water is mixed at 35 to 50 ° C. and then the antibacterial aqueous solution is coated on one side of the nonwoven fabric by gravure printing Thereby producing an antibacterial nonwoven fabric for absorbent articles,
    The composite zeolite has the following chemical formula: (Ag, Zn, Na) 12 [(AlO 2 ) (SiO 2 )] 12 ˙xH 2 O (x is a variable according to the water content) (Al 2 O 3 ), 32 to 35 parts by weight of silica (SiO 2 ), 0.5 to 1 part by weight of silver (Ag), 5.5 to 6.5 parts by weight of zinc (Zn) , And sodium (Na) in an amount of 5.5 to 6 parts by weight based on the total weight of the nonwoven fabric.
  2. delete
  3. delete
  4. The method according to claim 1,
    Wherein the latex is styrene butadiene latex (SB-Latex). &Lt; RTI ID = 0.0 &gt; 21. &lt; / RTI &gt;
  5. The method according to claim 1 or 4,
    Wherein the latex has a solid content of 45 to 50% and a viscosity of 180 to 200 cps (25 캜).
  6. The method according to claim 1,
    Characterized in that the antibacterial aqueous solution is coated on one surface of the nonwoven fabric by gravure printing and then bonded to the surface of the nonwoven fabric, and then the embossing treatment or the drum drying device is passed in order to firmly print the antibacterial nonwoven fabric.

KR1020160174439A 2016-12-20 2016-12-20 Manufacturing method of antibacterial non-woven fabrics for an absorbent article KR101832073B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001057931A (en) 1999-08-23 2001-03-06 Mitsubishi Paper Mills Ltd Deodorizing antibacterial sheet
JP2003048280A (en) 2001-08-08 2003-02-18 Hiraoka & Co Ltd Stainproof printing sheet and manufacturing method therefor
JP2003518525A (en) 1999-12-28 2003-06-10 キンバリー クラーク ワールドワイド インコーポレイテッド Use-dependent indicator system for an absorbent article

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001057931A (en) 1999-08-23 2001-03-06 Mitsubishi Paper Mills Ltd Deodorizing antibacterial sheet
JP2003518525A (en) 1999-12-28 2003-06-10 キンバリー クラーク ワールドワイド インコーポレイテッド Use-dependent indicator system for an absorbent article
JP2003048280A (en) 2001-08-08 2003-02-18 Hiraoka & Co Ltd Stainproof printing sheet and manufacturing method therefor

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