JP2006193849A - Pollen deposition-proof fiber structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an excellent multifunctional fiber structure having functions including antistaticity, water repellency and stainproofness and also the function of pollen deposition-proofness. <P>SOLUTION: The fiber structure is such that single filament surface is borne with uneven-surface coating film containing inorganic microparticles and formed by polymerizing a polymerizable monomer having at least two acryloyl and/or methacryloyl groups on one or both ends of a polyalkylene oxide-based main chain or as side chain of the main chain, and also at least part of the coating film is coated with a water repellent, which is firmly fixed in layer. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an excellent fiber structure that has both a durable antistatic property and water repellency, both of which have been difficult to achieve together, and also has a function of antifouling property and prevention of pollen adhesion. .

  The fiber fabric has antistatic properties as an essential function required when it is worn not only during sewing but also as clothing. If the garment is an outer garment such as a coat or a blouson, the garment may get wet due to rain, snow, etc., and functions such as water repellency and antifouling properties are required. In addition, these outer garments are often worn in early spring, and due to the increase in the number of hay fever patients over the past few years, even the ability to adhere to pollen is required.

  However, satisfying both the antistatic property obtained by hydrophilizing the fiber and the performance that dirt is easily removed by washing, and the water repellency obtained by hydrophobizing the fiber and the performance that is difficult to get dirty. Is very difficult, and it is very difficult to make it more durable in addition to such performance. In addition, it was even more difficult to obtain a fiber structure that also had pollen adhesion prevention performance.

  As an antistatic and water repellent processing method for a fiber structure, a method for forming a fluorine-based water repellent coating layer containing a cationic or anionic antistatic agent after forming a polyetherester resin layer on the surface of a fiber fabric (Refer to Patent Document 1), a manufacturing method (refer to Patent Document 2) for imparting a hydrophilic resin to a dyed fiber fabric in the first step, and a water- and oil-repellent resin having a hydrophilic group in the second step. Is covered with a film having two or more acrylic or methacrylic groups at the end of the main chain mainly composed of a polyalkylene oxide segment or a side chain of the main chain, and has a fluoroalkyl group-containing acrylic copolymer, A water repellent antistatic fabric (see Patent Document 3) having at least one of a reaction product of a plast resin and a polyfunctional blocked isocyanate-containing urethane resin is known.

  In addition, regarding the prevention of pollen adhesion, the surface friction coefficient and surface roughness of the fiber fabric are specified, and the pollen adhesion preventing function is difficult for the fiber structure (refer to Patent Document 4) and the fiber structure which are difficult to pollen and are easy to fall off. For this purpose, a processing method (see Patent Document 5) in which the fiber structure fabric is treated with a processing agent containing colloidal silica fine particles and the colloidal silica fine particles uniformly adhere to the surface of the fabric is proposed. Has been.

  However, in the method of forming a fluorine-based water repellent film layer containing an antistatic agent, there is a problem that it is difficult to obtain sufficient water repellency because the antistatic agent is contained in the water and oil repellent resin layer. there were. In addition, a hydrophilic resin is imparted in the first step, a water- and oil-repellent resin having a hydrophilic group is imparted in the second step, and the end of the main chain mainly composed of a polyalkylene oxide segment or 2 in the side chain of the main chain. For those covered with a film having at least one acrylic or methacrylic group and having a fluoroalkyl group-containing acrylic copolymer adhered thereto, the hydrophilic film is not sufficiently durable, and the hydrophilic film and the water-repellent resin Adhesion with the film was poor and it was difficult to obtain durability.

  For high-density long-fiber fabrics proposed to prevent pollen adhesion and treated with a fluorine-based water repellent, and the surface friction coefficient and surface roughness of the fiber fabrics are defined, the surface of the fabric is smoothed and the pollen It is effective to make it easy to fall off, but it is insufficient for fabrics and knitted fabrics using short fibers, and water repellency is obtained, but antistatic performance is insufficient. It was easy to cause pollen adsorption by static electricity.

In addition, even when colloidal silica fine particles are uniformly attached to the surface of the fabric, although it has the performance of being difficult to pollen and easy to fall off, it lacks washing durability, has no antistatic performance, and static electricity causes pollen Adsorption was likely to occur.
JP-A-6-316872 JP-A-9-3771 Japanese Patent Laid-Open No. 9-132872 JP 2003-227070 A JP 2004-3046 A

  In view of the background of such prior art, the present invention provides an excellent multifunctional fiber structure having antistatic properties, water repellency, antifouling properties, and also having a function of preventing pollen adhesion. To do.

  In order to solve the above problems, the present invention employs the following means. That is, the fiber structure of the present invention has at least two acrylics on the surface of a single fiber as both ends or one end of the main chain mainly composed of polyalkylene oxide segments containing inorganic fine particles or side chains of the main chain. And / or a film having a concavo-convex surface formed by polymerizing a polymerizable monomer having a methacryl group is formed, and at least a part of the film is coated with a water repellent and fixed in a layered manner. It is characterized by.

  According to the present invention, it is possible to provide a fiber structure having antistatic properties, water repellency and antifouling properties, which are essential functions as a fiber structure, and also having pollen adhesion prevention performance. it can.

  As a result of intensive studies on the above-mentioned problem, that is, a fiber structure having antistatic property, water repellency, antifouling property and pollen adhesion preventing property with durability against washing, the surface of the single fiber has uniformly fine irregularities. A hydrophilic film is formed, and at least a part of the surface of the film is further coated with a water repellent, particularly a water repellent composed of a copolymer having a polymer unit of (meth) acrylic acid ester having a fluoroalkyl group as an essential component. In this state, it was clarified that such problems can be solved at once by fixing them in layers.

  Hereinafter, the present invention will be described in detail.

  The fiber used in the present invention includes a polymerizable monomer having at least two acrylic and / or methacrylic groups as both ends of one of the main chains mainly composed of polyalkylene oxide segments or one terminal or a side chain of the main chain. After a certain amount of inorganic fine particles are contained in the polymer, it is polymerized on the fiber surface to form a uniform hydrophilic film on the surface of the single fiber, and the fluorine-based water repellent is fixed in layers on the film. It is.

  In general, when polymerizing a polymerizable monomer, if only the monomer is polymerized, migration occurs easily during polymerization, and a polymer lump is formed at the intersection of fiber bundles and fiber bundles to form a uniform film. Although it is difficult, in the present invention, it is preferable to mix the polymerizable monomer / inorganic fine particle in a weight mixing ratio in the range of 1 / 0.04 to 1.0. Mixing in such a range suppresses migration when the polymerizable monomer is polymerized, and a uniform film is formed on the single fiber, and this uniform film formation improves washing durability. It is. Although this film is formed uniformly, the term “uniform” as used herein does not mean that the surface is completely smooth, but means that the surface is evenly covered, and unevenness caused by inorganic fine particles as described later. Is preferably generated on the surface.

  Examples of the monomer having at least two acrylic and / or methacrylic groups as both ends or one end of the main chain or a side chain of the main chain mainly composed of the polyalkylene oxide segment in the present invention 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 in combination It can be used as a mixture.

  As a polymerization initiator for polymerizing such a monomer, a general vinyl polymerization initiator such as ammonium persulfate, potassium persulfate, azobisisobutyronitrile, ammonium sulfate, or the like can be used.

  Specific examples of the inorganic fine particles in the present invention include aluminum oxide, silicon oxide, titanium oxide, kaolin, bentonite, talc, calcium carbonate, calcium silicate, magnesium oxide, and the like. These may be used alone or in combination of two or more. Can be used. The average particle diameter of the particles is preferably 5 to 500 nm, more preferably 10 to 300 nm. If the thickness is smaller than 5 nm, fine irregularities are not embedded in the resin without appearing on the film, and the effect of preventing migration is small. If the thickness exceeds 500 nm, the continuous film formation of the polymer tends to be insufficient. For this reason, it is preferable that the inorganic fine particles have a particle size in the range of 5 to 500 nm. However, it is acceptable that particles having a particle size outside the particle size range are included to such an extent that the film formation is not affected.

  In the present invention, the polymerizable monomer is preferably added in an amount of 0.5 to 3% by weight based on the fiber weight. The weight mixing ratio of the polymerizable monomer and the inorganic fine particles is 0.04 with respect to the monomer 1. It is important to be in the range of -1.0. When the amount of the polymerizable monomer is less than 0.5% by weight, the film formation is insufficient, and the antistatic property cannot be obtained. When the amount exceeds 3% by weight, a uniform film is hardly obtained and the polymer is fixed in a block shape. Therefore, the texture becomes hard and the durability deteriorates. Further, when the inorganic fine particle is less than 0.04, the effect of preventing migration is small and the surface unevenness is small, and when it is more than 1.0, the film forming property is deteriorated and the washing durability is hardly obtained.

  The fiber structure is immersed in a mixed solution of a polymerizable monomer, inorganic fine particles, and a polymerization catalyst, and is squeezed at a constant squeeze rate in a mangle and treated in a saturated or supersaturated steam atmosphere at 80 to 160 ° C. for 0.5 to 10 minutes. By doing so, a continuous or discontinuous film can be formed on the fiber surface.

  The thickness of the coating can be controlled by the resin adhesion amount. That is, the resin active ingredient concentration when preparing a mixed solution of a polymerizable monomer, inorganic fine particles, and a polymerization catalyst, and the squeezing rate when the mixture is impregnated and squeezed with mangle, that is, the pressure applied to the mangle are appropriately adjusted. Thus, the resin adhesion amount, that is, the film thickness of the film can be controlled.

  By coating such a coating on the surface of a single fiber, durable antistatic and antifouling properties can be obtained. In addition, since it is preferable that this coating film has unevenness | corrugation resulting from an inorganic fine particle as mentioned above, it is preferable that the thickness of this coating film is smaller than the average particle diameter of the inorganic fine particle to be used.

  The fibers used in the present invention are those in which a water repellent is further fixed in a layer form on at least a part of the polymer coating containing such inorganic fine particles.

  When the polymer coating containing such inorganic fine particles covers a single fiber and has fine irregularities on the coating, the fine irregularities improve the adhesion to the water repellent fixed in layers on the coating. It plays a role of improving washing durability.

  In addition, the unevenness formed by the inorganic fine particles exerts an effect of preventing migration even when the water-repellent agent is fixed, and the polymer is more uniform on a single fiber than when only such a copolymer is fixed on the fiber surface. This also becomes a factor for improving the washing durability. The irregularities formed on the surface of the single fiber by the inorganic fine particles are preferably revealed on the surface of the fiber even after the copolymer is fixed, thereby further reducing the adhesiveness with floating particles such as pollen and adhering pollen. The function of prevention performance can also be provided.

  In the present invention, the water repellent may be any of known water repellents such as a fluorine water repellent, a silicone water repellent, and a paraffin water repellent, but is preferable in order to maintain high water repellency. Is preferably a fluorine-based water repellent. Particularly preferred is a copolymer essentially comprising a polymer unit of (meth) acrylic acid ester having a fluoroalkyl group. The (meth) acrylic acid ester having a fluoroalkyl group is preferably a compound in which the fluoroalkyl group is present in the alcohol residue portion of the (meth) acrylic acid ester.

  Such a fluoroalkyl group refers to a group in which two or more hydrogen atoms of an alkyl group are substituted with fluorine atoms. 2-20 are preferable and, as for carbon number of a fluoroalkyl group, 6-16 are especially preferable. The fluoroalkyl group is preferably a linear or branched group. In the case of a branched group, it is preferable that the branched portion is present at the terminal portion of the fluoroalkyl group and is a short chain having about 1 to 4 carbon atoms. Further, the fluoroalkyl group is preferably a group in which all of the hydrogen atoms of the alkyl group are substituted with fluorine atoms (that is, a perfluoroalkyl group) or a group having a perfluoroalkyl group at the terminal portion.

  In the case of a perfluoroalkyl group, the carbon number is preferably 1-20, and particularly preferably 4-16. When the number of carbon atoms is less than 4, the water repellency of the processing agent composition tends to decrease. When the number is more than 16, the copolymer becomes solid at room temperature, has high sublimation properties, and is difficult to handle. There is a fear.

  The copolymer essentially including a polymer unit of (meth) acrylic acid ester having a fluoroalkyl group may contain one or two or more of such polymer units. When two or more kinds of such polymerized units are included, it is preferable to use (meth) acrylic acid esters having fluoroalkyl groups having different carbon numbers.

  Moreover, it is preferable that the copolymer which has a polymerization unit of the (meth) acrylic acid ester which has this fluoroalkyl group as an essential component contains polyalkylene glycol (meth) acrylic acid ester as a polymerization unit in a side chain. Such polyalkylene glycol is preferably polyethylene glycol and / or polypropylene glycol.

  Such a copolymer is preferably fixed simultaneously with at least one of an aminoplast resin and a polyfunctional isocyanate group-containing urethane resin to constitute a resin composition.

  As aminoplast resin, it is possible to use 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. it can. Among them, hexamethylol melamine and trimethylol melamine are preferable.

  The polyfunctional isocyanate group-containing urethane resin is not particularly limited as long as it is an organic compound containing two or more isocyanate functional groups in the molecule. Specific examples include tolylene diisocyanate, hexamethylene diisocyanate, diphenyl methane diisocyanate, hydrogenated diphenyl methane diisocyanate, triphenyl triisocyanate, xylene resin isocyanate, dichloromethane methane diisocyanate, trimethylolpropane tolylene diisocyanate adduct, fryserylene tolylene diene. Phenol, malonic acid diethyl ester, methyl ethyl ketoxime, sodium bisulfite, ε-caprolactam, etc. were reacted as blocking compounds that can be dissociated when heated to 70 to 200 ° C. on an isocyanate adduct and regenerate active isocyanate groups. A polyfunctional block isocyanate urethane resin can be mentioned. 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.

  As described above, since it is preferable that the fluorine-based water repellent coating film has irregularities caused by inorganic fine particles on the surface even after being fixed to the fiber surface, the copolymer coating film and the inorganic fine particles are formed on the surface. It is preferable that the total thickness with the polymer film to be contained is smaller than the average particle diameter of the inorganic fine particles. Further, such a copolymer film may be fixed in a layered manner on at least a part of the polymer film containing inorganic fine particles, but it is more preferable to cover the whole.

  Such a fluorine-based water repellent is preferably fixed in an amount of 0.04 to 3% by weight based on the fiber weight. If it is less than 0.04% by weight, water repellency cannot be obtained, and if it exceeds 3% by weight, the film thickness becomes thicker than the particle size of the inorganic fine particles, and adheres in a block shape and has durability and pollen adhesion. It becomes difficult to obtain preventive properties.

  As a method for applying the resin composition, it is preferable that a treatment liquid obtained by adding an aminoplast resin and / or a polyfunctional isocyanate group-containing urethane resin to a fluorine-based water repellent is attached to the fiber structure and then heat-treated. . The method of applying the treatment liquid is preferably applied by a method of applying the fiber structure after immersion in the treatment liquid by a padding method or a spray method. The heat treatment is either a dry heat treatment or a wet heat treatment, preferably a dry heat treatment at 100 to 200 ° C. When the temperature is less than 100 ° C, the washing durability is insufficient, and when the temperature exceeds 200 ° C, the fiber tends to yellow or become brittle.

  In order to control the amount of the resin adhered, the resin active ingredient concentration when preparing a mixed liquid of a fluorine-based water repellent, an aminoplast resin and / or a polyfunctional isocyanate group-containing urethane resin, and impregnating the mixed liquid By adjusting the squeezing rate at the time of squeezing with the mangle, that is, the pressure applied to the mangle, the resin adhesion amount, that is, the film thickness of the coating film can be controlled.

  The fiber structure of the present invention has pollen adhesion preventing performance in addition to antistatic property, antifouling property and water repellency.

  In the fiber structure of the present invention, pollen adhesion prevention performance is evaluated using simulated pollen. The simulated pollen referred to in the present invention is a particle size of pollen called Ishimatsuko (manufactured by Tsuda Shoten). Refers to natural products close to. Ishimatsuko is a spore of 30-40 μm fern family, and has a particle size and shape close to that of pollen. It is possible to confirm the prevention of pollen adhesion by using this Ishimatsuko as pseudo-pollen.

  The method for measuring the pollen adhesion preventing performance is performed by the following method. That is, 30 pieces of 7 × 7 cm fiber fabrics are conditioned at 20 ° C. × 65% RH for 24 hours, placed in a polyethylene bag together with 1 g of artificial pollen, and about 20 liters at 20 ° C. × 65% RH in air. Inflate to tie your mouth. After tying such a polyethylene bag at a speed of 1 sec / sec and shaking it up and down 100 times based on the mouth, take out the fiber fabric and take three photos of the fiber fabric surface magnified 50 times. Count the number of pseudo-pollens within the range of 7.5 × 10 cm and calculate the average of the three locations.

  The fiber structure of the present invention is preferably such that the pollen adhesion preventing performance by this measuring method is such that the average number of three places is 250 or less. When the number of deposits exceeds 250, pollen adhesion is clearly confirmed when the fabric surface is viewed with the naked eye, and it is difficult to say that pollen is difficult to adhere.

  Examples of the polyester fiber used in the present invention include a polyester fiber containing an aromatic component and an aliphatic polyester fiber. Examples of polyester fibers containing an aromatic component include polyethylene terephthalate, polybutylene terephthalate, polypropylene terephthalate, or those and third components such as isophthalic acid, isophthalic acid sulfonate, adipic acid, and polyethylene glycol. can do. Examples of the aliphatic polyester fiber include poly L lactic acid, poly D lactic acid and poly D, homopolymer composed of L lactic acid, polylactic acid-glycolic acid copolymer, and the like.

  The polyester fiber used in the present invention may contain various commonly used additives in order to improve productivity and properties in the production process and processing process of the raw yarn. For example, additives such as heat stabilizers, antioxidants, light stabilizers, UV absorbers, antistatic agents, colorants, smoothing agents, plasticizers, antibacterial agents, fungicides, and deodorants are added to polyester fibers. It can be included.

  In the present invention, these polyester fibers can be used alone or in admixture of two or more, and short fibers, long fibers or these may be mixed. In addition, other fibers, for example, natural fibers such as cotton, wool and silk, and semi-synthetic fibers such as rayon and acetate can be mixed and used within a range not impairing the effects of the present invention.

    As the polyester-based fiber structure of the present invention, those in the form of a fabric-like material such as a woven fabric, a knitted fabric and a non-woven fabric composed of the polyester-based fibers can be used, but are not limited thereto.

  Since the fiber structure of the present invention has antistatic properties, water repellency, antifouling properties, and pollen adhesion prevention properties, it is particularly clothes and bedding called outerwear, specifically coats, blousons, windbreakers, blouse , Dress shirts, skirts, slacks, gloves, hats, futon sides, duvet cover or curtains.

  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.

(Antistatic)
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 withstand voltage measurement method) and displayed in (kV). The smaller the value, the better the antistatic property.

(Anti-fouling property)
A 10 × 10 cm test cloth is placed on a glass plate, 0.1 ml of a stain is dropped on the center of the test cloth, a glass plate is placed thereon, and a 1.92 N load is applied and left for 1 minute. Remove the load and glass plate and leave it in a horizontal state for 24 hours. Put 25L of 0.1% slightly alkaline synthetic detergent solution at 40 ± 2 ° C in the washing tub of the two-tank washing machine, put 500g of the test cloth and the load cloth after contamination and put it in the strong condition of the washing machine for 5 minutes. do laundry. Repeat the operation of dehydrating for 30 seconds and rinsing for 2 minutes twice. Remove the test cloth and air dry on filter paper. The change in the color of the dyed part after drying is classified on the gray scale for contamination (from grade 5 to grade 1). The higher the value, the better the antifouling property.
* Pollutant: Sesame oil (made by Kadoya Refinery)
* Raw oil (manufactured by SB Foods Co., Ltd.)
(Water repellency)
Evaluation was made by the spray method according to the method specified in JIS L 1092 “Testing method for waterproofness of textile products” (1998), and the grade was determined.

Grade 5: No wetting or water droplets on the surface. Grade 4: No wetting on the surface but showing small water droplets. Grade 3: Showing small individual water droplets on the surface. Grade 2: Half of the surface. Indicating wetness, indicating that individual small wetness penetrates the cloth. Grade 1: Indicating wetting on the entire surface, or indicating wetting on the entire surface and backside (prevention of pollen)
30 sheets of 7 x 7 cm fiber fabric is conditioned at 20 ° C x 65% RH for 24 hours, placed in a polyethylene bag with 1 g of artificial pollen, and inflated to about 20 liters with 20 ° C x 65% RH air. Tie your mouth. After tying such a polyethylene bag at a speed of 1 sec / sec and shaking it up and down 100 times based on the mouth, take out the fiber fabric and take three photos of the fiber fabric surface magnified 50 times. Count the number of pseudo-pollens within the range of 7.5 × 10 cm and calculate the average of the three locations.

(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 25 minutes, then drained and washed with overflow water for 10 minutes × twice twice and then air-dried.

Examples 1-8
After weaving a plain fabric using 84 dtex, 72 filament false twisted yarn made of polyethylene terephthalate as warp and weft yarns, the fabric is scoured in a conventional method at a temperature of 95 ° C. using a continuous scourer and washed with hot water. Then, it was dried at 130 ° C. and pinter set at 180 ° C. Subsequently, it was dyed with a liquid dyeing machine, dried at 130 ° C., and pintter set at 170 ° C. to obtain a scarlet woven fabric having a warp / width of 140/88 / 2.54 cm.

  The dyed fabric was treated in two steps by the following method, and the results of performance evaluation are shown in Table 1. All of them had durable antistatic properties, antifouling properties, water repellency, and pollen adhesion preventing properties.

First stage treatment <polymerizable monomer>
Polyethylene glycol dimethacrylate (active ingredient 100%) having a molecular weight of 1000 as the polyalkylene oxide segment was used.
<Inorganic fine particles>
Silicon oxide having the following particle size was used as an aqueous dispersion of 20% active ingredient.
a. Particle size 6-8nm
b. Particle size 10-20nm
c. Particle size 40-50nm
d. Particle size 80-100nm
e. Particle size 180-200nm
f. Particle size 280-300nm
g. Particle size 400-450nm
The monomer is dissolved in water at a concentration of 20 g / L, and the active ingredient of silicon oxide in the liquid is a weight ratio of 0.05, 0.1, 0.2, 0.4 to the monomer 1 Then, 2 g / lL of ammonium peracid sulfate was added as a polymerization catalyst to prepare each treatment solution.

  Next, the dyed cloth was immersed in the treatment liquid, mangled and adjusted so that the amount of treatment liquid adhered was 100% by weight, and then treated in a saturated steam atmosphere at 106 ° C. for 3 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, and dried at 130 ° C.

Second-stage treatment Next, the substrate was immersed in a treatment liquid in which the following was mixed and squeezed with a mangle to adjust the amount of the treatment liquid to be 100% by weight.

<Fluorine-based water repellent>
TK guard 208 (Takamatsu Yushi Co., Ltd., active ingredient 20%) 60 g / l
<Aminoplast resin>
Sumitses Resin M-3 (active ingredient 80%) 3g / l
Catalyst RC-W (active ingredient 16%) 1g / l
<Polyfunctional blocked isocyanate-containing urethane resin>
Super Fresh JB-7200 (active ingredient 40%) 5g / l
Then, it dried with the 130 degreeC dryer and performed the heat processing for 1 minute at 170 degreeC.

Comparative Example 1
The same treatment as in Example 3 was performed except that the treatment was not performed with the second-stage fluorine-based water repellent-containing treatment liquid. The results of evaluating the performance are shown in Table 1.

  Although antistatic properties, antifouling properties, and pollen adhesion prevention properties can be obtained, water repellency cannot be obtained, and when applied to a coat or the like, basically required functions are not provided.

Comparative Example 2
The same treatment as in Example 3 was performed except that the inorganic fine particles were not contained. The results of evaluating the performance are shown in Table 1. After finishing, the antistatic property, antifouling property, pollen adhesion preventing property and water repellency were obtained, but the washing durability was insufficient.

Comparative Example 3
The same treatment as in Example 3 was carried out except that the treatment was not carried out with the treatment solution of the first-stage polymerizable monomer and inorganic fine particles. The results of evaluating the performance are shown in Table 1. Although it has water repellency, it has no antistatic property, and pollen adheres due to static electricity, which is undesirable for clothing.

Claims (9)

Polymerization containing at least two acrylic and / or methacrylic groups on the surface of a single fiber and containing inorganic fine particles and having both ends of one of the main chains mainly composed of a polyalkylene oxide segment, or one terminal or a side chain of the main chain A fiber structure characterized in that a film having an uneven surface formed by polymerizing a photopolymerizable monomer is formed, and at least a part of the film is coated with a water repellent and fixed in a layered manner . The fiber structure according to claim 1, wherein the water repellent is a fluorine-based water repellent. The fiber structure according to claim 1 or 2, wherein the fluorine-based water repellent is a copolymer having a polymerization unit of (meth) acrylic acid ester having a fluoroalkyl group as an essential component. The copolymer having a polymer unit of (meth) acrylic acid ester having a fluoroalkyl group as an essential component has polyethylene glycol and / or polypropylene glycol in the side chain. The fiber structure according to any one of the above. The fiber structure according to any one of claims 1 to 4, wherein the unevenness is also manifested on a film of a water repellent that is fixed in the layer shape. The fiber structure according to any one of claims 1 to 5, wherein the inorganic fine particles are silicon oxide. The fiber structure according to any one of claims 1 to 6, wherein the water repellent is a resin composition formed simultaneously with an aminoplast resin or / and a polyfunctional blocked isocyanate-containing urethane resin. The fiber structure according to any one of claims 1 to 7, wherein the fiber structure is a cloth having 250 or less pseudo pollen adhered to the surface of the fiber structure as measured by the following measurement method.
(Measuring method)
30 sheets of 7 x 7 cm fiber fabrics are conditioned at 20 ° C x 65% RH for 24 hours, placed in a polyethylene bag with 1 g of artificial pollen, and inflated to about 20 liters with 20 ° C x 65% RH air. Tie your mouth. The polyethylene bag was tied at a speed of 1 sec / sec and shaken up and down 100 times with respect to the mouth, and then the fiber fabric was taken out, and three photos of the fiber fabric surface magnified 50 times were taken. Count the number of x10 cm pseudo-pollen and calculate the average of the three locations. The coat, blouson, windbreaker, blouse, dress shirt, skirt, slacks, gloves, hat, duvet side, duvet cover or curtain are used. Fiber structure.