JP2008163473A - Fiber structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To stably provide a fiber structure which has an anti-staining property and a washing-resistant antistatic property. <P>SOLUTION: This fiber structure has a resin coating film containing a polymerizable monomer having two or more acryl and/or methacryl groups at both the terminals or one terminal of a main chain consisting mainly of a polyalkylene oxide segment or on the side chain of the main chain as a polymerization component, on the surface of a single fiber, and contains a hydrophilic polyester-based resin, in the coating film. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a fiber structure having both durable antistatic properties and antifouling properties.

  Conventionally, the request | requirement which improves the antifouling property of a fiber structure is high, and various methods to improve are proposed. From the viewpoint of a processing agent, a fluororesin containing a hydrophilic group (Patent Documents 1 and 2) has been developed in order to impart performance that is less likely to cause aqueous stains or oily stains and is easily removed. Further, after the fiber surface is coated with a hydrophilic resin, a fiber structure (Patent Document 3) that forms a layer of a water- and oil-repellent resin having a hydrophilic group, a film made of a fluoropolymer and a hydrophilic, antistatic polymer A fiber product to be formed (Patent Document 4) has been proposed.

However, the water- and oil-repellent agent having a hydrophilic group is not fixed on the fiber surface even when a crosslinking agent or a catalyst is used in combination. What forms a layer of a water- and oil-repellent resin having a hydrophilic group on a hydrophilic resin coating has properties that conflict with hydrophilic and water-repellent properties, but the adhesion of the resin is weak and it is difficult to obtain sufficient durability It requires a two-step process of forming a water- and oil-repellent layer after the formation of the hydrophilic layer, and also involves economic problems. The method of forming a film comprising a fluorinated polymer and a hydrophilic, antistatic polymer is intended to impart high water repellency with the fluorinated polymer. Although there is no description about the antifouling property, it is expected to have a performance that dirt is difficult to adhere, but the attached dirt has a defect that it is difficult to fall off by washing or the like.
JP-A-3-70757 JP-A 61-266487 Japanese Patent No. 3748592 JP-A-55-148281

  In view of the background of the prior art, the present invention is to provide a fiber structure having antifouling property against water-based soil and oily soil excellent in durability and having antistatic properties.

In order to solve the above problems, the present invention employs the following means.
(1) A polymerizable monomer having two or more acrylic groups and / or methacrylic groups as both ends of one of the main chains mainly composed of a polyalkylene oxide segment or one end or a side chain of the main chain on the surface of a single fiber A fiber structure comprising a resin film containing as a polymerization component and a hydrophilic polyester-based resin contained in the film.
(2) The fiber structure according to 1 above, wherein the water absorption rate is 30 seconds or less.
(3) The fiber structure according to the above 1 or 2, wherein the friction withstand voltage is 3 kv or less.
(4) The fiber structure according to any one of the above items 1 to 3, which has a lipstick antifouling property of 4 or higher when measured by the following measurement method.
(Measuring method)
0.006 g of lipstick RS366 made by Shiseido Co., Ltd. is evenly applied to the surface of a 25φ rubber plug, pressed against the cloth, and the rubber plug is rotated 45 ° to contaminate the lipstick with the cloth. The contaminated cloth is allowed to stand for 24 hours, and then washed according to the method defined in JIS L0217-103, and the degree of contamination is determined (grade) on the contamination gray scale.
(5) The fiber structure according to any one of the above items 1 to 3, wherein the foundation antifouling property is 4th grade or higher when measured by the following measurement method.
(Measuring method)
0.006 g of foundation ocher 30 manufactured by Shiseido Co., Ltd. is uniformly applied to the surface of a 25φ rubber plug, pressed against the cloth, and the rubber plug is rotated 45 ° to contaminate the foundation with the cloth. The contaminated cloth is allowed to stand for 24 hours, and then washed according to the method defined in JIS L0217-103, and the degree of contamination is determined (grade) on the contamination gray scale.
(6) The fiber structure according to any one of the above items 1 to 3, wherein the antifouling property of sebum contamination when measured by the following measurement method is 4th or higher.
(Measuring method)
Apply 0.006 g of the cortical fouling agent described in the Journal of Japanese Society of Home Economics Vol. 46 No 3 265-269 (1995) uniformly to the surface of a 25φ rubber plug, press it against the fabric, rotate the rubber plug by 45 °, and cortex Contaminate the fabric with a contaminant. The contaminated cloth is allowed to stand for 24 hours, and then washed according to the method defined in JIS L0217-103, and the degree of contamination is determined (grade) on the contamination gray scale.
(7) The fiber structure according to any one of the above items 1 to 3, wherein the antifouling property when measured by the following measurement method is 4th or higher.
(Measuring method)
Collect red agate soil / black soil / water used in the multipurpose ground at a 1/1/1 weight ratio, pulverize and mix in a mortar to make a mud for contamination. 20 g of the stain is applied to a 10 cm × 10 cm fabric surface with a knife coater and left for 24 hours, and then washed according to the method specified in the JIS L0217-103 method. (Class) Judge.
(8) A garment using the fiber structure according to any one of 1 to 7 above.

  ADVANTAGE OF THE INVENTION According to this invention, the textile structure which has the antistatic property and antifouling property with washing durability can be supplied stably.

  The present invention, as a result of intensive studies on the above-mentioned problem, that is, imparting antistatic and antifouling functions with excellent washing durability, results in antistatic polymer and hydrophilic polyester system on the surface of a single fiber. The present inventors have investigated that this problem can be solved at once by forming a resin mixed film.

  Examples of the monomer having two or more acrylic groups and / or methacrylic groups as both ends or one end of the main chain mainly composed of the polyalkylene oxide segment of the present invention or a side chain of the main chain include polyethylene glycol diester. Acrylate, polyethylene glycol dimethacrylate, polyethylene glycol-polypropylene glycol dimethacrylate, polyethylene glycol-polypropylene glycol diacrylate, ethylene oxide adduct dimethacrylate of bisphenol A, ethylene oxide adduct diacrylate of bisphenol A, propylene oxide adduct of bisphenol A Dimethacrylate, propylene oxide adduct diacrylate of bisphenol A, etc., alone or as a mixture of two or more It can be used.

  The hydrophilic polyester resin of the present invention is preferably a polyester ether copolymer obtained by copolymerizing polyethylene glycol with a polyester segment composed of an acid component and a glycol component. The acid component may be dimethyl terephthalate or dimethyl isophthalate. , 5-sodium sulfoisophthalic acid, terephthalic acid, isophthalic acid, adipic acid, etc., and glycol components include ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,2- At least one component such as butanediol, 1,4-butanediol, 1,6-hexanediol or diethylene glycol is preferably used. Polyethylene glycol having a molecular weight of 800 to 3000 can be used. Specific examples include copolymerized polyesters having a dimethyl terephthalate / ethylene glycol molar ratio of 7-9 / 3 to 1, repeating units of 5 to 8, and polyethylene glycol molecular weight of 8000 to 30000, and dimethyl terephthalate / 5 -Copolymerized polyester resin having a reaction mixture of dimethyl sodium sulfoisophthalate / ethylene glycol 250/200/330 parts and molecular weight 2000 polyethylene glycol 100 parts.

  The mixing ratio of the solid content of the polymerizable monomer of the present invention and the solid content of the hydrophilic polyester resin is preferably 100/5 to 100 by weight ratio of polymerizable monomer / hydrophilic polyester resin. More preferably, it is 100 / 20-60.

A fluorine-based compound can be mixed in the film of the present invention. The fluorine compound is a perfluoroacrylate compound, a perfluorosulfonamide acrylate compound, or a perfluoroalkyl polyether compound, and a fluorine compound having a hydrophilic group and / or a hydrophilic segment in a part of the skeleton. A compound. The mixing amount of the fluorine-based compound is preferably 0.01 to 50, more preferably 0.05 to 20 with respect to the mixture weight 100 of the solid content of the polymerizable monomer and the solid content of the hydrophilic polyester resin. is there.
Fine particles can be mixed in the film of the present invention. The fine particles may be either inorganic compounds or organic compounds, and the inorganic fine particles include aluminum oxide, silicon oxide, titanium oxide, kaolin, bentonite, talc, calcium carbonate, calcium silicate, magnesium oxide, and the like. It is preferably used as an aqueous dispersion. Of these, silicon oxide is preferably used. The number average particle diameter of the particles is preferably 5 to 500 nm, more preferably 10 to 100 nm. Examples of the organic fine particles include acrylic resins, urethane resins, melamine resins and copolymers thereof, and the number average particle diameter of the particles is preferably 5 to 2000 nm, more preferably 10 to 300 nm. And is preferably used as an aqueous dispersion. These inorganic fine particles and organic fine particles can be used alone or in admixture of two or more. By the addition of the particles, the formability of the antistatic resin film is improved, and it becomes a tough film and the durability can be enhanced. Furthermore, since fine irregularities are formed on the surface of the resin film by the particles, it is possible to further enhance the adhesion preventing property and drop-off property of solid contaminants. In the present invention, the mixing amount of the fine particles is preferably from 1 to 100, more preferably from 5 to 60, based on the mixture weight 100 of the solid content of the polymerizable monomer and the solid content of the hydrophilic polyester resin. .
The resin film of the present invention may contain at least one of an aminoplast resin and a polyfunctional isocyanate compound. Examples of aminoplast resins include melamine resins such as trimethylol melamine and hexamethylol melamine, urea resins such as dimethylol propylene urea, dimethylol ethylene urea, and dimethylol hydroxy urea, and uron resins such as dimethylol uron. Hexamethylol melamine and trimethylol melamine are preferably used. The polyfunctional isocyanate-based compound is not particularly limited as long as it is an organic compound containing two or more isocyanate functional groups in the molecule. Tolylene diisocyanate, hexamethylene diisocyanate, diphenylmethane diisocyanate, hydrogenated diisocyanate. Examples include phenyl methane diisocyanate, triphenyl triisocyanate, xylene resin isocyanate, dichloromethane diisocyanate, and the like. In addition, phenol and diethyl malonate, which are blocking compounds (compounds that regenerate isocyanate groups by heating to 70-200 ° C. together with isocyanate adducts), such as trimethylolpropane tolylene diisocyanate adducts and frucrine tolylene diisocyanate adducts Examples thereof include polyfunctional block isocyanate urethane resins obtained by reacting an ester, methyl ethyl ketoxime, sodium bisulfite, ε-caprolactam and the like. As the dissociation catalyst used for promoting the improvement of the thermal separation rate of the blocked isocyanate and the reduction of the thermal dissociation temperature, dibutyltin diolate, dibutyltin stearate, stearyl zinc and organic amine compounds are preferred. The mixing of the admixture has an effect of increasing the durability of the hydrophilic polyester-based resin, and it is preferable to mix it with the treatment liquid at a concentration of 0.01 to 1%.

  In the present invention, after applying a mixture of a catalyst to an aqueous liquid in which a polymerizable monomer and a hydrophilic polyester resin are blended, heat treatment is performed to form a polymer film. Examples of such catalysts include acetic acid, formic acid, acrylic acid, malic acid, tartaric acid, maleic acid, phthalic acid, sulfuric acid, persulfuric acid, hydrochloric acid, phosphoric acid and the like, and ammonium salts, sodium salts, potassium salts, magnesium salts thereof and the like. Yes, one or more of these can be used. Of these, ammonium persulfate and potassium persulfate can be preferably used. Such a catalyst is preferably used in a proportion of 0.1 to 20% by weight based on the amount of the polymerizable monomer used.

  The heat treatment for the polymerization is preferably a dry heat treatment or a steam heat treatment at a temperature of 50 to 180 ° C. for 0.1 to 30 minutes. The steam heat treatment forms a uniform film on the fiber surface. Easy, high film strength and flexible texture. For steaming, saturated steam or superheated steam at 80 to 160 ° C. is preferably used. More preferable saturated water vapor is 90 to 130 ° C., and superheated water vapor is 110 to 160 ° C., both of which perform the treatment for several seconds to several minutes. After such steaming and heat treatment, in order to remove unreacted monomers and catalysts, and to ensure dyeing fastness, washing with hot water at a temperature of 50 to 95 ° C., nonionic surfactant, sodium carbonate, hydrosal It is preferable to perform cleaning using a fight or the like.

  As the resin film of the present invention, a film having a thickness of 5 to 100 nm when observed using a transmission electron microscope (TEM) at a magnification of 100000 times is preferably used.

  The fiber structure of the present invention preferably has a water absorption speed of 30 seconds or less. Here, the water absorption rate is a method defined in JIS L 1096, in which a water droplet is dropped on the cloth and the time until it is completely absorbed is measured and displayed in (seconds). In the present invention, the water absorption rate can be reduced to 30 seconds or less by forming a film comprising a polymer containing a polyalkylene oxide segment and a hydrophilic polyester.

  The fiber structure of the present invention preferably has a friction withstand voltage of 3 kv or less. Here, the friction withstand voltage is a method defined in the JIS L 1094B method (friction band voltage measurement method), and the friction withstand voltage is measured using cotton as an object cloth in an atmosphere of 20 ° C. × 40% RH. kv). In the present invention, since a hydrophilic component film is formed on the fiber surface, by reducing the bond and adhesive strength with the contaminant, the wash-out property is increased, and the friction withstand voltage is set to 3 kv or less. be able to.

The fiber structure of the present invention preferably has a lipstick antifouling property of 4th grade or higher when measured by the following measurement method.
(Measuring method)
0.006 g of lipstick RS366 made by Shiseido Co., Ltd. is evenly applied to the surface of a 25φ rubber plug, pressed against the cloth, and the rubber plug is rotated 45 ° to contaminate the lipstick with the cloth. The contaminated cloth is allowed to stand for 24 hours, and then washed according to the method specified in the JIS L0217-103 method, and the degree of contamination is determined (grade) on the contamination gray scale. In the present invention, since a hydrophilic component film is formed on the fiber surface, the ability to remove and increase the lipstick antifouling property is increased by reducing the binding to and adhesion to a contaminant, and the lipstick antifouling property is 4th or higher. It can be.
The fiber structure of the present invention preferably has a foundation antifouling property of 4th grade or higher when measured by the following measurement method.
(Measuring method)
0.006 g of foundation ocher 30 manufactured by Shiseido Co., Ltd. is uniformly applied to the surface of a 25φ rubber plug, pressed against the cloth, and the rubber plug is rotated 45 ° to contaminate the foundation with the cloth. The contaminated cloth is allowed to stand for 24 hours, and then washed according to the method defined in JIS L0217-103, and the degree of contamination is determined (grade) on the contamination gray scale. In the present invention, since a hydrophilic component film is formed on the fiber surface, by reducing the bond with the stain and the adhesive force, the wash-off property is increased, and the foundation antifouling property is 4th or higher. It can be.
In this invention, it is preferable that the antifouling property of sebum contamination when measured by the following measuring method is 4th or higher.
(Measuring method)
Apply 0.006 g of the cortical fouling agent described in the Journal of Japanese Society of Home Economics Vol. 46 No 3 265-269 (1995) uniformly to the surface of a 25φ rubber plug, press it against the fabric, rotate the rubber plug by 45 °, and cortex Contaminate the fabric with a contaminant. The contaminated cloth is allowed to stand for 24 hours, and then washed according to the method defined in JIS L0217-103, and the degree of contamination is determined (grade) on the contamination gray scale. In the present invention, since a hydrophilic component film is formed on the fiber surface, by reducing the bond and adhesive strength with the pollutant, the washing-off property is increased, and the antifouling property of such sebum contamination is increased. Or higher.
The fiber structure of the present invention preferably has a mud antifouling property of 4th grade or higher when measured by the following measurement method.
(Measuring method)
Red jade soil / ordinary soil / water is collected at a 1/1/1 weight ratio, placed in a mortar and pulverized and mixed to prepare the mud for contamination. Apply 20 g of the stain on the surface of the fabric of 10 cm × 10 cm with a knife coater, leave it for 24 hours, tap it off by hand, and wash it by the method specified in JIS L0217-103. Determining the grade with a gray scale for contamination.
In the present invention, a hydrophilic component film is formed on the fiber surface, so that the ability to wash and drop off is increased by reducing the bond and adhesive strength with the contaminant, and this mud antifouling property is grade 4 or higher. It can be.

  The fiber material used in the fiber structure of the present invention is not particularly limited, but is an aromatic polyester fiber such as polyethylene terephthalate, polypropylene terephthalate and polybutylene terephthalate, and a third component such as an aromatic polyester such as isophthalic acid, isophthalic acid. Aromatic polyester fiber copolymerized or blended with acid sulfonate, adipic acid and polyethylene glycol, aliphatic polyester fiber represented by L-lactic acid as a main component, polyamide fiber such as nylon 6 and nylon 66 , Acrylic fibers based on polyacrylonitrile, polyolefin fibers such as polyethylene and polypropylene, synthetic fibers such as polyvinyl chloride fibers, semi-synthetic fibers such as acetate and rayon, cotton, hemp, silk and And natural fibers such as wool, and the like. In the present invention, these fibers can be used singly or as a mixture of two or more. However, fibers mainly composed of polyester fibers and polyamide fibers are preferably used.

  The fibers used in the present invention may be flat yarns such as false twisted yarns, strong twisted yarns, taslan yarns, thick yarns and mixed yarns in addition to ordinary flat yarns, and staple fibers, tows, or spinning yarns. Various forms of fibers such as yarn may be used.

  The fiber structure of the present invention includes a knitted fabric using the fibers, a fabric-like material such as a woven fabric or a non-woven fabric, or a string-like material.

  Since the fiber structure of the present invention has antistatic properties and antifouling properties, clothes and bedding, specifically coats, blousons, windbreakers, blouses, dress shirts, skirts, slacks, gloves, hats, It is suitably used for applications such as clothing-use products, non-clothing-use products, such as futon sides, futon drying covers, curtains or tents.

EXAMPLES Hereinafter, although an Example demonstrates this invention in detail, this invention is not limited to these. Moreover, the quality evaluation in an Example was implemented with the following method.
(Friction withstand voltage)
The friction withstand voltage was measured using cotton as a target cloth in an atmosphere of 20 ° C. × 40% RH by the method defined in the JIS L 1094B method (friction band voltage measurement method), and displayed in (kv).
(Water absorption)
A water drop was dropped on the cloth surface by a method defined in JIS L 1096, and the time until it was completely absorbed was measured and displayed in (seconds).
(Anti-fouling property a: Lipstick anti-fouling property)
0.006 g of lipstick RS366 made by Shiseido Co., Ltd. is evenly applied to the surface of a 25φ rubber plug, pressed against the cloth, and the rubber plug is rotated 45 ° to contaminate the lipstick with the cloth. The contaminated fabric was allowed to stand for 24 hours, and then washed according to the method defined in JIS L0217-103, and the degree of contamination was determined (grade) on the contamination gray scale.
(Anti-fouling b: Foundation anti-fouling property)
0.006 g of foundation ocher 30 manufactured by Shiseido Co., Ltd. is uniformly applied to the surface of a 25φ rubber plug, pressed against the cloth, and the rubber plug is rotated 45 ° to contaminate the foundation with the cloth. The contaminated fabric was allowed to stand for 24 hours, and then washed according to the method defined in JIS L0217-103, and the degree of contamination was determined (grade) on the contamination gray scale.
(Anti-fouling property c: Sebum stain anti-fouling property)
The following pollutants described in Journal of Japan Society of Home Economics Vol.46 No3 265-269 (1995) were prepared, 0.006 g of the pollutant was uniformly applied to the surface of a 25φ rubber plug, and pressed against the fabric to plug the rubber plug. Is rotated 45 ° to contaminate the fabric with sebum stains. The contaminated fabric was allowed to stand for 24 hours, and then washed according to the method defined in JIS L0217-103, and the degree of contamination was determined (grade) on the contamination gray scale.
<Sebum dirt pollutant>
(1) Contaminant component and quantity (A) Organic component
(A) Oily soil component oleic acid 14.2 g
Trio Rain 7.8g
Cholesterol oleate 6.1g
Liquid paraffin 1.3g
Squalene 1.3g
Cholesterol 0.8g
(B) Protein
Gelatin 3.5g
(B) Inorganic component
Red yellow soil 15.0g
Carbon black 0.25g
(2) How to make a contaminated liquid Gelatin is put into 850 mL of water having a water quality hardness of 80 mg / L or less in a 1000 mL beaker and dissolved at a temperature not exceeding 45 ° C. Thereafter, carbon black is added and stirred with a homogenizer (stirrer) until the carbon black is sufficiently dispersed, and then allowed to stand for 12 to 72 hours. Then, after stirring for 3 minutes with a homogenizer, red yellow soil is added and stirred for about 30 minutes with a homogenizer. The oily soil component is then added and stirred for about 2 minutes.
(Anti-fouling d: Mud-fouling antifouling)
Collect red jade soil / black soil / water used for the multipurpose ground at a 1/1/1 weight ratio, pulverize and mix in a mortar to make mud for contamination. 20 g of the stain is applied to a 10 cm × 10 cm fabric surface with a knife coater and left for 24 hours, and then washed according to the method specified in the JIS L0217-103 method. (Class) Judged.

(Washing durability)
A weak alkaline synthetic detergent specified in JIS K 337 is dissolved in an automatic inversion swirl electric washing machine to a concentration of 0.2%, a bath ratio of 1:50, and a temperature of 40 ± 2 ° C. under strong conditions. Was washed for 10 minutes, then drained and washed with overflow water for 10 minutes × 2 times, and this was repeated 20 times, followed by air drying. The washing cloth was measured for antifouling property by the method described above, and the washing durability performance was evaluated.

(Examples 1-4, Comparative Examples 1-3)
After weaving a plain fabric using 84 dtex, 72 filament false twisted yarn made of polyethylene terephthalate as warp and weft yarn, the fabric is scoured in a continuous manner at a temperature of 95 ° C. in a conventional manner and washed with hot water. Then, it was dried at 130 ° C. and pinter set at 180 ° C. Next, it is dyed fluorescent white at a temperature of 130 ° C. using a liquid dyeing machine, washed by a conventional method, washed with hot water, dried and pinter set at 170 ° C., and the length / width density 140/88 / 2.54 cm The woven fabric was made.

The white fabric was treated by the following method to form an antifouling resin. The results of evaluating the performance of the obtained woven fabric are shown in Table 1. All of them had durable antistatic and antifouling properties and a soft texture.
<Anti-fouling resin>
The following polymerizable monomers were mixed in the proportions shown in Table 1, and ammonium persulfate was mixed as a polymerization catalyst at a concentration of 0.02% to prepare a treatment solution. The fabric was immersed in the treatment liquid, adjusted so that the amount of the treatment liquid adhered was 90% by weight, narrowed with mangles, and treated in a saturated steam atmosphere at 105 ° C. for 5 minutes. Subsequently, it was washed for 1 minute in a 60 ° C. aqueous solution containing 1 g / L of a nonionic surfactant and 1 g / L of sodium carbonate, washed with water, dried at 130 ° C., and pinter set at a temperature of 170 ° C. The antistatic property and antifouling property of the finished product of the processed fabric and the laundry product washed 20 times were measured.
(Polymerizable monomer)
A: Polyethylene glycol dimethacrylate having a polyalkylene oxide segment having a molecular weight of 1000 (solid content: 100%).
(Hydrophilic polyester resin)
B: SR1800 (manufactured by Takamatsu Yushi Co., Ltd., hydrophilic polyester resin, solid content 10%)
(Fluorine compounds)
C: Asahi Guard AG1100 (manufactured by Meisei Chemical Co., Ltd., fluorine-based water and oil repellent, solid content 20%)

Claims (8)

Polymeric monomer having two or more acrylic groups and / or methacrylic groups as both ends of the main chain mainly composed of a polyalkylene oxide segment or one terminal or side chain of the main chain on the surface of a single fiber The fiber structure which has a resin film formed as and contains a hydrophilic polyester-based resin in the film. The fiber structure according to claim 1, wherein the water absorption speed is 30 seconds or less. The fiber structure according to claim 1 or 2, wherein the withstand voltage of friction is 3 kv or less. The fiber structure according to any one of claims 1 to 3, which has a lipstick antifouling property of 4th grade or higher when measured by the following measurement method.
(Measuring method)
0.006 g of lipstick RS366 made by Shiseido Co., Ltd. is evenly applied to the surface of a 25φ rubber plug, pressed against the cloth, and the rubber plug is rotated 45 ° to contaminate the lipstick with the cloth. The contaminated cloth is allowed to stand for 24 hours, and then washed according to the method defined in JIS L0217-103, and the degree of contamination is determined (grade) on the contamination gray scale. The fiber structure according to any one of claims 1 to 3, which has a foundation antifouling property of 4th grade or higher when measured by the following measurement method.
(Measuring method)
0.006 g of foundation ocher 30 manufactured by Shiseido Co., Ltd. is uniformly applied to the surface of a 25φ rubber plug, pressed against the cloth, and the rubber plug is rotated 45 ° to contaminate the foundation with the cloth. The contaminated cloth is allowed to stand for 24 hours, and then washed according to the method defined in JIS L0217-103, and the degree of contamination is determined (grade) on the contamination gray scale. The fiber structure according to any one of claims 1 to 3, wherein the antifouling property of sebum contamination when measured by the following measurement method is 4 or more.
(Measuring method)
Apply 0.006 g of the cortical fouling agent described in the Journal of Japanese Society of Home Economics Vol. 46 No 3 265-269 (1995) uniformly to the surface of a 25φ rubber plug, press it against the fabric, rotate the rubber plug by 45 °, and cortex Contaminate the fabric with a contaminant. The contaminated cloth is allowed to stand for 24 hours, and then washed according to the method defined in JIS L0217-103, and the degree of contamination is determined (grade) on the contamination gray scale. The fiber structure according to any one of claims 1 to 3, wherein the antifouling property when measured by the following measurement method is 4th or higher.
(Measuring method)
Collect red agate soil / black soil / water used in the multipurpose ground at a 1/1/1 weight ratio, pulverize and mix in a mortar to make a mud for contamination. 20 g of the stain is applied to a 10 cm × 10 cm fabric surface with a knife coater and left for 24 hours, and then washed according to the method specified in the JIS L0217-103 method. (Class) Judge. The clothing which uses the fiber structure in any one of Claims 1-7.