JP2002235278A - Contact cold sensory fiber, textile product, and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a fiber or a textile product having excellent contact cold sensory actions even when washing is repeatedly carried out. SOLUTION: This fiber or textile product is obtained by holding porous inorganic powder particles enclosing a water absorbent polymer in the fiber.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a contact cooling sensible fiber and a fiber product, and a method for producing the same.

[0002]

2. Description of the Related Art Sheets in which a non-woven fabric is directly coated with a water-absorbing polymer are known. This sheet is used for the purpose of sticking to a human body, removing heat during heat generation, and lowering body temperature. That is, this sheet gives the human body a cool feeling of contact by depriving the human body of the heat of vaporization when the moisture previously contained in the water-absorbing polymer evaporates.

The above-mentioned sheet is a disposable type sheet. If the dirt on the sheet is to be removed by washing, it is inevitable that the water-absorbing polymer directly coated on the nonwoven fabric will flow into the washing bath, and the desired performance will not be exhibited. Therefore, the dirt on the sheet cannot be removed by washing, and the sheet cannot be reused repeatedly. For this reason, the sheet is not used for clothes requiring washing.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a fiber or a textile product having an excellent contact cooling sensation even when washing is repeatedly performed.

[0005]

Means for Solving the Problems The present inventor paid attention to the function of the above-mentioned water-absorbing polymer and tried to impart a contact cooling sensation to clothing. Then, in order to avoid the outflow of the water-absorbing polymer due to washing, the idea of fixing the water-absorbing polymer to the fiber with a binder resin or the like was conceived. However, the volume of the water-absorbing polymer changes significantly depending on the water content, and the water-absorbing polymer fixed to the fiber absorbs moisture and expands in volume, so that the binder resin cannot keep up with the change in the volume of the water-absorbing polymer. It was found that the water-absorbing polymer was peeled from the fiber.

The present inventor further included a water-absorbing polymer in porous inorganic powder particles while repeating trial and error,
When the porous inorganic powder particles are fixed to the fiber,
Even when the water-absorbing polymer absorbs water and expands its volume, the volume of the porous inorganic powder particles does not change, and as a result, even when the fibers are washed, the porous inorganic powder particles fixed to the fibers are removed from the fibers. It has been found that the fibers can be provided with a contact cooling sensation effect having excellent washing durability without peeling. The present invention has been completed based on such findings.

[0007] That is, the present invention relates to a fiber or a fiber product obtained by causing a fiber to grip a porous inorganic powder particle containing a water-absorbing polymer.

The fiber or fiber product of the present invention has an excellent contact cooling sensation. The fiber or fiber product of the present invention is
The washing durability is such that the contact cooling sensation does not decrease even if washing is repeated.

Further, when the fiber or the fiber product of the present invention is a fiber or a fiber product having a hydrophilic group, it has an action of generating heat when absorbing moisture and absorbing heat when drying. Heat due to heat of hydration) and heat absorption (heat of vaporization) when entering a room with cooling while sweating, but the porous inorganic powder particles containing a water-absorbing polymer are used as the fibers. Or if you let the fiber product grip,
The effect of buffering the temperature change during moisture absorption and drying is obtained, and the effect of reducing the temperature change in the clothes is exhibited.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The fiber or fiber product of the present invention is obtained by causing a fiber to hold porous inorganic powder particles containing a water-absorbing polymer.

The fibers in the present invention may be any of synthetic fibers, regenerated fibers and natural fibers.

As the synthetic fibers, known fibers can be widely used, and examples thereof include polyester, nylon, acryl and acetate.

As the regenerated fibers, known fibers can be widely used, and examples thereof include rayon.

As the natural fibers, known fibers can be widely used, and examples thereof include cotton, hemp, wool, and silk. In addition to raw cotton itself, caustic mercerized cotton
Cotton and the like treated with liquid ammonia are included.

The fiber of the present invention may be a blend of the above various fibers.

The fibers of the present invention include primary processed products of the above fibers, such as yarns, strings, ropes, woven fabrics, knitted fabrics, and nonwoven fabrics. The fibers of the present invention do not include paper, which is a primary product of the fibers.

Of the above fibers, fibers having a hydrophilic group include:
Regenerated fibers, natural fibers, and synthetic fibers into which hydrophilic groups (for example, carboxyl groups, hydroxyl groups, amino groups, and sulfone groups) have been introduced.

In the present invention, a fiber product means a product obtained by further processing the above-mentioned fiber, such as clothing such as outer garments, inner garments, and inner garments, bedding, interior goods, household goods, and car interior goods. Specifically, coats, jackets, pants, skirts, shirts, knit shirts, blouses,
Nightwear, underwear, sweaters, supporters, socks,
Clothing such as tights, stockings, hats, scarves, lining of clothes, interlining of clothes, batting of clothes, work clothes, uniforms, school uniforms for children; Products such as interior goods such as mats, curtains, carpets, etc .; daily necessities such as towels, handkerchiefs, towels, pot holders, etc .; and automobile interior goods such as seats, seat covers, handle covers, etc. The textiles of the present invention also include those in the form of textiles used in the field of industrial materials such as wall cloth and floor covering.

As the porous inorganic powder particles, known particles can be widely used, and examples thereof include crystalline porous aluminosilicate, porous silica, porous alumina, activated clay, diatomaceous earth, perlite, bentonite, titania and the like. Can be.

[0020] The crystalline porous aluminosilicate is called zeolite, and in addition to natural zeolite and synthetic zeolite,
This is a concept that includes metallosilicate and the like. Specific examples of the natural zeolite include mordenite, clinoptilolite, and erionite. Specific examples of the synthetic zeolite include A type, X type, Y type, ZSM series, sodalite, and the like.

In the present invention, among the above porous inorganic powder particles, crystalline porous aluminosilicate, porous silica and porous alumina are preferred, and crystalline porous aluminosilicate and porous silica are particularly preferred.

The porous inorganic powder particles include, in addition to the primary particles,
Aggregates such as secondary particles are also included, and pulverized porous inorganic powder particles are also included. The shape of the porous inorganic powder particles is not particularly limited. The size, the average particle diameter is usually 0.01 ~ 500μm, preferably 0.1 ~ 10μm,
More preferably, the thickness is 0.1 to 2 μm.

The size of the pores of the porous inorganic powder particles is smaller than that of the contained water-absorbing polymer, and is preferably a size that allows water to pass therethrough, and is usually 0.1 to 1000 nm, preferably 5 to 500 nm. Good.

The specific surface area of the porous inorganic powder particles is usually 1
0 to 1000 m ² / g, preferably 70 to 800 m ² / g
It is.

The encapsulation rate of the water-absorbing polymer is represented by% by weight of the water-absorbing polymer based on the porous inorganic powder particles enclosing the water-absorbing polymer, and is usually 0.1 to 80% by weight, preferably 1 to 40% by weight. And particularly preferably 5 to 25% by weight.

As the water-absorbing polymer included in the porous inorganic powder particles, known polymers can be widely used. The water-absorbing polymer is preferably a water-insoluble particulate water-absorbing polymer.

As the water-insoluble particulate water-absorbing polymer,
(Meth) acrylic acid or a salt thereof, (meth) acrylamide, N-substituted (meth) acrylamide, 2- (meth) acryloylethanesulfonic acid or a salt thereof, styrenesulfonic acid or a salt thereof, 2-hydroxy (meth) acrylate, Homopolymers of vinylpyrrolidone, vinyl methyl ether, polyethylene oxide (meth) acrylate or the like, or crosslinked products of copolymers using two or more of these monomers; saponified vinyl acetate-methyl acrylate copolymer, Saponified vinyl acetate-maleic acid copolymer,
Crosslinked products of isobutylene-maleic anhydride copolymer, carboxymethyl cellulose, etc .; saponified styrene-sodium maleate anhydride copolymer, starch-acrylic acid graft polymer, polysaccharide-acrylic acid graft polymer, starch-acrylonitrile Examples include a hydrolyzate of a graft polymer.

As a method for forming a crosslinked product among the above-mentioned water-insoluble particulate water-absorbing polymers, for example, (1) the above-mentioned monomer or monomer mixture is added to a polyfunctional vinyl monomer or at least A method of mixing with a crosslinking agent having a functional group other than two vinyl groups, for example, an epoxy group, and polymerizing by a known method; (2) a homopolymer or a copolymer from the above monomer or monomer mixture And then reacting the crosslinking agent by a known method.

Examples of the polyfunctional vinyl monomer used in the above method include N, N'-methylenebisacrylamide, ethylene glycol diacrylate, ethylene glycol dimethacrylate, polyethylene glycol diacrylate, polyethylene glycol dimethacrylate, triglyceride. Methylol propane triacrylate and the like.

Examples of the crosslinking agent having a functional group other than the vinyl group used in the above method include glycidyl ether-based, isocyanate-based, and maleimide-based crosslinking agents. Specific examples of the glycidyl ether-based crosslinking agent include ethylene glycol diglycidyl ether, polyethylene glycol diglycidyl ether, glycerol diglycidyl ether, glycerol triglycidyl ether, and triglycidyl isocyanurate. Specific examples of the isocyanate-based crosslinking agent include methylene bis (4-phenyl diisocyanate),
Examples thereof include 2,6-tridendiphenyl diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate, and xylidene diisocyanate. Specific examples of the maleimide-based crosslinking agent include N, N'-1,
4-phenylenediamine dimaleimide, N, N'-1,
Examples thereof include 2-phenylenediamine dimaleimide, N, N'-hexamethylenediamine dimaleimide, and N, N'-tetramethylenediamine dimaleimide.

The water-insoluble particulate water-absorbing polymer used in the present invention is particularly preferably a polymer obtained by crosslinking a sodium acrylate polymer with a crosslinking agent. As a crosslinking agent for the sodium acrylate polymer used at this time, ethylene glycol diglycidyl ether is preferable.

For enclosing the water-absorbing polymer in the porous inorganic powder particles, known methods can be widely used.
For example, (a) a method of adding a monomer as a raw material of the water-absorbing polymer to the voids of the porous inorganic powder particles, and performing a polymerization reaction in the voids to generate a water-absorbing polymer, (b) a temperature up to the melting point of the water-absorbing polymer And a method in which the water-absorbing polymer is further pressurized to put the water-absorbing polymer into the voids of the porous inorganic powder particles, and (c) a method in which the water-absorbing polymer and the porous inorganic powder particles are mixed and aggregated.

In the fiber or fiber product of the present invention, porous inorganic powder particles containing a water-absorbing polymer are held by the fiber. Grasping refers to a mode in which the porous inorganic powder particles containing the water-absorbing polymer are attached to the fiber, a mode in which the inorganic powder particles are impregnated in the fiber, and a mode in which the inorganic powder particle is inside the fiber (crystal part or amorphous part of the fiber). This is a concept including all of the aspects and the like enclosed in the quality part).

The amount by which the porous inorganic powder particles containing the water-absorbing polymer are held by the fiber or the fiber product is not limited.
The content is 1 to 30% by weight, preferably 0.1 to 20% by weight, more preferably 0.5 to 10% by weight.

The contact cool-sensible fiber or fiber product of the present invention comprises:
For example, it is produced by adhering and / or impregnating a porous inorganic powder particle containing a water-absorbing polymer to a fiber or a fiber product, and then drying.

In adhering and / or impregnating the inorganic powder particles containing the water-absorbing polymer to the fiber or the fiber product, various methods such as a dipping method, a spraying method and a coating method are widely applied. Can be. Among these, the dipping method and the coating method are preferred.

In the present invention, it is desirable to fix the inorganic powder particles to the fiber or fiber product using a binder resin in order to prevent the inorganic powder particles from falling off from the fiber or fiber product. Here, known binder resins can be widely used, and examples thereof include various thermosetting resins such as urethane resins, silicone resins, acrylic resins, melamine resins, and urea formalin resins.
Among these binder resins, urethane-based resins, silicone-based resins and acrylic-based resins are preferred, and silicone-based resins are particularly preferred because of their soft texture. The amount of the binder resin used may be such that the porous inorganic powder particles can be fixed to the fiber or fiber product.

According to the immersion method, the fiber or fiber product to be treated may be immersed in a treatment solution containing the inorganic powder particles containing the water-absorbing polymer and the binder resin. Further, according to the coating method, the fiber or the fiber product may be coated with a treatment liquid containing the water-absorbing polymer-containing inorganic powder particles and the binder resin.

Hereinafter, the immersion method will be described in detail.

The concentration of the inorganic powder particles containing the water-absorbing polymer and the binder resin in the treatment liquid may be set to the concentration calculated from the squeezing rate of the treatment liquid and the required amount of the carrier.

The solvent constituting the treatment liquid may be an organic solvent, but it is preferable to use water as the solvent in consideration of safety, cost and the like.

The permeation time of the treatment liquid into the fiber or fiber product is sufficiently fast, and there is no particular limitation on the immersion time and bath temperature. Usually, the immersion time is 0.1 second to 300 seconds, and the bath temperature is 10
Performed at 40 ° C. The drawing differs depending on the product to be processed, and an appropriate drawing method and drawing ratio can be adopted for each. Usually, it is preferable to squeeze with a mangle or the like so as to obtain a uniform squeezing rate.

After immersion and squeezing, drying is performed. Industrially, the drying temperature may be selected from 40 to 150 ° C., and the time may be selected according to the temperature.

When a binder resin is used, it is preferable to perform a heat treatment after drying in order to fix the binder resin. The temperature and time of the heat treatment vary depending on the type of the binder resin used, etc., and cannot be described unconditionally, but the heat treatment temperature is usually 100 to 250 ° C., preferably 120 to 200 ° C., and the heat treatment time is usually 20 seconds to One hour.

In the present invention, first, a fiber holding the water-absorbing polymer-containing inorganic powder particles is manufactured, and then a fiber product may be manufactured from the fiber. Alternatively, the fiber product may be manufactured in advance, and The fiber product may be made to grip the inorganic powder particles containing the water-absorbing polymer.

The fiber or fiber product of the present invention can be manufactured by the following method. That is, when the fiber is a regenerated fiber or a synthetic fiber, when the regenerated fiber or the synthetic fiber is spun, the porous inorganic powder particles containing the water-absorbing polymer are added to the stock solution for spinning.
A fiber in which the inorganic powder particles are kneaded inside the fiber is obtained. Textile products are produced from the fibers thus obtained.

[0047]

The fiber or fiber product of the present invention has an excellent contact cooling sensation. In the present invention, since the water-absorbing polymer is included in the porous inorganic powder particles, even if the water-absorbing polymer absorbs water, the volume of the included water-absorbing polymer expands only to the internal volume of the inorganic powder particles. for that reason,
It is possible to prevent the porous inorganic powder particles containing the water-absorbing polymer, which are firmly adhered to or impregnated into the fibers by the binder resin or kneaded in the fibers, from falling off from the fibers or the fiber product. Therefore, the fiber or textile product of the present invention can maintain excellent contact cooling sensation for a long period of time even after repeated washing.

Further, when the fiber or fiber product of the present invention is a fiber or fiber product having a hydrophilic group, it has an action of generating heat when absorbing moisture and absorbing heat when drying. Heat due to heat of hydration) and heat absorption (heat of vaporization) when entering a room with cooling while sweating, but the porous inorganic powder particles containing a water-absorbing polymer are used as the fibers. Or if you let the fiber product grip,
The effect of buffering the temperature change during moisture absorption and drying is obtained, and the effect of reducing the temperature change in the clothes is exhibited.

[0049]

The following reference examples, examples and comparative examples are given below.
The present invention will be further clarified. Hereinafter, "%" means "% by weight".

REFERENCE EXAMPLE 1 A solution obtained by neutralizing 255 parts by weight of an 80% aqueous solution of acrylic acid with 280 parts by weight of a 30% aqueous sodium hydroxide solution, diethylene glycol diglycidyl ether (Denacol EX8)
10, manufactured by Nagase Kasei Co., Ltd.) 10.2 parts by weight of potassium persulfate and 0.8 part by weight of potassium persulfate dissolved in 20 parts by weight of water, and crystalline porous aluminosilicate 10 having an average particle diameter of 3 μm
0 parts by weight are added to 1000 parts by weight of cyclohexane,
Dispersed with a homomixer. Next, the temperature was raised to about 85 ° C. under a nitrogen stream, and a crosslinking reaction was performed for 2 hours. After that, azeotropic dehydration was performed, cyclohexane was distilled off, and the mixture was allowed to cool. A crystalline porous aluminosilicate having an average particle diameter of 3 μm in which 10% of the product was crosslinked using diglycidyl ether) was obtained.

Example 1 A 100% cotton woven fabric having a basis weight of 150 g / m ² was scoured, bleached, and mercerized, and then treated with 10 water-absorbing polymer (sodium polyacrylate crosslinked using ethylene glycol diglycidyl ether). % Included 3%
0.5% by weight of a crystalline porous aluminosilicate (obtained in Reference Example 1) and a silicon binder (TF3
500, manufactured by Kitahiro Chemical Co.) was immersed in an aqueous solution in which 2% by weight was mixed and dispersed, and then squeezed with a mangle (squeezing ratio: 100%).
After drying at 00 ° C for 2 minutes, heat treatment was performed at 150 ° C for 2 minutes to obtain the cotton fabric of the present invention.

Example 2 A 100% cotton woven fabric having a basis weight of 150 g / m ² was scoured, bleached, and mercerized, and then a water-absorbing polymer (a product obtained by crosslinking sodium polyacrylate with ethylene glycol diglycidyl ether) was used. % Included 3%
1.0% by weight of a crystalline porous aluminosilicate (obtained in Reference Example 1) and a silicon binder (TF3
500, manufactured by Kitahiro Chemical Co.) was immersed in an aqueous solution in which 2% by weight was mixed and dispersed, and then squeezed with a mangle (squeezing ratio: 100%)
After drying at 00 ° C for 2 minutes, heat treatment was performed at 150 ° C for 2 minutes to obtain the cotton fabric of the present invention.

Example 3 A 100% cotton woven fabric having a basis weight of 150 g / m ² was scoured, bleached, and mercerized, and then a water-absorbing polymer (sodium polyacrylate cross-linked using ethylene glycol diglycidyl ether) was added. % Included 3%
m of a crystalline porous aluminosilicate (obtained according to Reference Example 1) and 2% by weight of a silicon binder (TF3500, manufactured by Kitahiro Chemical Co., Ltd.) were mixed and dispersed. Aperture (aperture ratio: 100
%), Dried at 100 ° C. for 2 minutes, and then heat-treated at 150 ° C. for 2 minutes to obtain a cotton fabric of the present invention.

Example 4 A 100% cotton woven fabric having a basis weight of 150 g / m ² was scoured, bleached, and mercerized, and then a water-absorbing polymer (sodium polyacrylate crosslinked using ethylene glycol diglycidyl ether) was added to 20 pieces. % Included 3%
m of a crystalline porous aluminosilicate (obtained according to Reference Example 1) and 2% by weight of a silicon binder (TF3500, manufactured by Kitahiro Chemical Co., Ltd.) were mixed and dispersed. Aperture (aperture ratio: 100
%), Dried at 100 ° C. for 2 minutes, and then heat-treated at 150 ° C. for 2 minutes to obtain a cotton fabric of the present invention.

Example 5 A 100% polyester woven fabric having a basis weight of 150 g / m ² was scoured, bleached, and mercerized, and then a water-absorbing polymer (a product obtained by crosslinking sodium polyacrylate with ethylene glycol diglycidyl ether) was used. Aqueous solution containing 0.5% by weight of a crystalline porous aluminosilicate having an average particle diameter of 3 μm (obtained in Reference Example 1) and 2% by weight of a silicon binder (TF3500, manufactured by Kitahiro Chemical Co., Ltd.) And then squeezed with a mangle (squeezing ratio: 1)
00%), dried at 100 ° C. for 2 minutes, and heat-treated at 150 ° C. for 2 minutes to obtain a polyester fabric of the present invention.

Example 6 A 100% polyester woven fabric having a basis weight of 150 g / m ² was scoured, bleached, and mercerized, and then a water-absorbing polymer (crosslinked sodium polyacrylate using ethylene glycol diglycidyl ether) was added to 10 Aqueous solution containing 1.0% by weight of a crystalline porous aluminosilicate having an average particle diameter of 3 μm (obtained in Reference Example 1) and 2% by weight of a silicon binder (TF3500, manufactured by Kitahiro Chemical Co., Ltd.) And then squeezed with a mangle (squeezing ratio: 1)
00%), dried at 100 ° C. for 2 minutes, and heat-treated at 150 ° C. for 2 minutes to obtain a polyester fabric of the present invention.

Example 7 A 100% polyester woven fabric having a basis weight of 150 g / m ² was scoured, bleached, and mercerized, and then a water-absorbing polymer (sodium polyacrylate cross-linked using ethylene glycol diglycidyl ether) was added. 0.5% by weight of a crystalline porous aluminosilicate having an average particle diameter of 3 μm (obtained according to Reference Example 1) and 2% by weight of a silicon binder (TF3500, manufactured by Kitahiro Chemical Co., Ltd.) After being immersed in the aqueous solution thus squeezed, it was squeezed with a mangle (squeezing ratio: 100%), dried at 100 ° C. for 2 minutes, and heat-treated at 150 ° C. for 2 minutes to obtain a polyester fabric of the present invention.

Example 8 A 100% polyester woven fabric having a basis weight of 150 g / m ² was subjected to scouring, bleaching, and mercerizing treatments, followed by crosslinking with 20 water-absorbing polymers (sodium polyacrylate crosslinked using ethylene glycol diglycidyl ether). And 1.0% by weight of a crystalline porous aluminosilicate having an average particle diameter of 3 μm (obtained according to Reference Example 1) and 2% by weight of a silicon binder (TF3500, manufactured by Kitahiro Chemical Co., Ltd.) After being immersed in the aqueous solution thus squeezed, it was squeezed with a mangle (squeezing ratio: 100%), dried at 100 ° C. for 2 minutes, and heat-treated at 150 ° C. for 2 minutes to obtain a polyester fabric of the present invention.

Example 9 A blended fabric of 50% cotton and 50% polyester having a basis weight of 153 g / m ^{2 was} scoured, bleached, and mercerized, and then treated with a water-absorbing polymer (sodium polyacrylate using ethylene glycol diglycidyl ether). 10)
Aqueous solution containing 0.5% by weight of a crystalline porous aluminosilicate having an average particle diameter of 3 μm (obtained in Reference Example 1) and 2% by weight of a silicon binder (TF3500, manufactured by Kitahiro Chemical Co., Ltd.) Immersed in a mangle, squeezed with a mangle (squeezing ratio: 100%), dried at 100 ° C for 2 minutes
Heat treatment was performed at 0 ° C. for 2 minutes to obtain a blended fabric of the present invention.

Comparative Example 1 A 100% cotton woven fabric having a basis weight of 150 g / m ² was scoured, bleached, and treated with mercerizing, immersed in water, squeezed with a mangle (squeezing ratio: 100%), dried at 100 ° C. for 2 minutes, and then dried at 150 ° C. For 2 minutes to obtain a cotton fabric of Comparative Example 1.

Comparative Example 2 A 100% cotton woven fabric having a basis weight of 150 g / m ² was scoured, bleached, and mercerized, immersed in a 2% by weight aqueous solution of a silicon binder, and squeezed with a mangle (squeezing ratio: 100%).
Comparative Example 1 was dried at 150 ° C. for 2 minutes and heat-treated at 150 ° C. for 2 minutes.
Was obtained.

Comparative Example 3 A 100% polyester fabric having a basis weight of 150 g / m ² was washed with hot water, immersed in water and squeezed with a mangle (squeezing rate: 100).
%), Dried at 100 ° C. for 2 minutes, and heat-treated at 150 ° C. for 2 minutes to obtain a polyester fabric of Comparative Example 3.

Comparative Example 4 A 100% polyester fabric having a basis weight of 150 g / m ² was washed with hot water, immersed in a 2% by weight aqueous solution of silicone binder, squeezed with a mangle (squeezing ratio: 100%), and dried at 100 ° C. for 2 minutes. Heat treatment was performed at 150 ° C. for 2 minutes to obtain a polyester fabric of Comparative Example 4.

Comparative Example 5 A blended woven fabric of 50% cotton and 50% polyester having a basis weight of 153 g / m ^{2 was} scoured, bleached and treated with mercerizing, immersed in water, squeezed with a mangle (squeezing ratio: 100%), 100 ° C. And then heat-treated at 150 ° C. for 2 minutes to obtain a blended fabric of Comparative Example 5.

Test Example 1 (Measurement of Contact Cooling Sensation) For each of the fabrics obtained in Examples 1 to 8 and Comparative Examples 1 to 4, a KES measuring device (KES-FB manufactured by Kato Tech Co., Ltd.) was used.
Using 7), cool feeling (q-max value (W / cm ² ))
Was measured. Further, the fabric obtained by repeatedly washing each of the fabrics obtained in Examples 1 to 8 and Comparative Examples 1 to 30 30 times also has a cold / hot feeling (q-max value (W / c) in the same manner as described above.
m ² )) was measured.

Table 1 shows the results. q-max value (W / c
The larger the value of m ² ), the greater the contact cooling sensation effect.

[0067]

[Table 1]

Test Example 2 (Temperature change buffering effect test) Test cloth (mixed fabric obtained in Example 9, fabric obtained by repeating washing the blended fabric obtained in Example 9 for 30 times, and Comparative Example 5) Woven fabric) is folded in four, a temperature sensor is installed inside, and put in a thermo-hygrostat to reach a temperature of 30%.
After leaving for 1 hour at 50 ° C. and a humidity of 50%, the humidity was changed (humidity 50% → 90% → 50%) and the temperature change in the fabric was measured.

FIG. 1 shows the results.

FIG. 1 shows the following. (1) When the environment changes from 50% to 90% in humidity, moisture is adsorbed on cotton to generate heat of hydration and generate heat. The blended fabric of Example 9 generated less heat than the blended fabric of Comparative Example 5. (2) When the environment changes from 90% to 50% in humidity, the moisture adsorbed on the cotton is cooled by heat of vaporization for evaporating. In the blended fabric of Example 9, excessive cooling was suppressed as compared with the blended fabric of Comparative Example 5. (3) From the above (1) and (2), when the blended fabric of Example 9 is sweaty and stuffed, it becomes cooler than the blended fabric of Comparative Example 5 and also from the sweaty and stuffy condition. It was confirmed that when the room was suddenly cooled, it did not become too cold. (4) It was confirmed that the above effect hardly changed even after the washing was repeated 30 times.

[Brief description of the drawings]

FIG. 1 is a graph showing the relationship between humidity and the temperature of a fabric.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) A41D 31/00 501 A41D 31/00 502A 4L036 502 502P 4L048 503A 503 D01F 1/10 D01F 1/10 D02G 3 / 02 D02G 3/02 D03D 15/00 E D03D 15/00 D06M 15/263 D06M 11/45 23/08 15/263 101: 02 23/08 101: 06 // D06M 101: 02 101: 16 101: 06 11 / 12 101: 16 11/06 F term (reference) 3B028 DA00 3B030 AA01 AB08 4L031 AA01 AA02 AA12 AB21 AB32 AB33 BA19 BA20 DA00 DA08 4L033 AA01 AA02 AA04 AB05 AB06 AC07 AC10 AC15 BA16 BA53 CA18 DA04 DA06 4L035 BB31 GG31 EE 4L036 MA04 PA26 RA24 UA08 UA25 4L048 AA06 AA07 AA13 AA14 AA19 AA54 AA56 AC00 AC15 CA00 CA07 DA01

Claims (10)

[Claims] 1. A fiber or fiber product obtained by holding a porous inorganic powder particle containing a water-absorbing polymer in a fiber. 2. The fiber or fiber product according to claim 1, wherein the porous inorganic powder particles are at least one selected from the group consisting of crystalline porous aluminosilicate, porous silica, and porous alumina. 3. The fiber or fiber product according to claim 1, wherein the fiber is a natural fiber, a regenerated fiber or a synthetic fiber. 4. The fiber or fiber product according to claim 1, wherein the primary processed product of the fiber is at least one selected from the group consisting of a yarn, a string, a rope, a woven fabric, a knitted fabric, and a nonwoven fabric. 5. The textile product may be clothing, bedding, interior,
The fiber or fiber product according to claim 1 or 2, wherein the fiber or fiber product is at least one selected from the group consisting of household goods and automobile interior parts. 6. Adhering porous inorganic powder particles containing a water-absorbing polymer to natural fibers, regenerated fibers or synthetic fibers and / or
Or a fiber or a fiber product impregnated. 7. A fiber or fiber product in which porous inorganic powder particles containing a water-absorbing polymer are kneaded into a regenerated fiber or a synthetic fiber. 8. A fiber or textile product having a contact cooling sensation effect with washing durability. 9. Adhering and / or impregnating a porous inorganic powder particle containing a water-absorbing polymer to a fiber or a fiber product,
The fiber or fiber product according to claim 1, which is obtained by drying. 10. The method for producing a fiber or a fiber product according to claim 1, wherein the fiber or the fiber product is adhered and / or impregnated with porous inorganic powder particles containing a water-absorbing polymer, and then dried.