JP2001336066A - Fabric excellent in refreshingness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a multilayer-structured fabric excellent in refreshingness, having quick water absorptivity and hygroscopicity while, having dry surface, being suppressed in sticky feeling and suitable for various clothes such as a nightie, a blouse, sportswear and underwear. SOLUTION: This fabric comprises a multilayer-structured fabric composed of a hygroscopic fiber at >=20% one side surface area of the fabric, wherein the hygroscopic fiber is a hydrophobic hollow fiber filled with hygroscopic gel in its cavities dispersed on the fiber surface and has open cells from the fiber surface to the cavities.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fabric having excellent cooling properties, and more particularly, to a cooling property in which hollow fibers containing a moisture-absorbing gel are disposed in a hollow portion on one surface of a multi-layered fabric. The present invention relates to a multi-layer structure fabric excellent in the above.

[0002]

2. Description of the Related Art Conventionally, when sweat is sweated, the cloth forming a garment such as sports or innerwear has insufficient diffusion of sweat, or the sweat smoothly moves from the skin side to the opposite side of the cloth. Because of this, the skin side of the fabric may be sticky, and the fabric may be uncomfortable or stuffy even after sweating due to poor drying properties.

To solve this problem, see, for example, Japanese Patent Laid-Open No. 4-37.
As described in Japanese Patent No. 0251, one surface of the fabric is formed of synthetic fiber such as polyester, and the other surface is formed of hydrophilic fiber such as spun cotton yarn, and the water-absorbing fiber is used on the skin side. Improves moisture absorption and water absorption to make you feel stuffy,
There is known a method for improving the quick-drying property by utilizing the capillary phenomenon of synthetic fibers while preventing the sticky feeling.

However, the conventionally used spun yarn such as cotton has a short fiber portion which is bulky and has many voids, and water is stored in the voids, and at the same time, the fibers to be guided by the short fibers are cut. Therefore, it is difficult for water to form a continuous phase, which greatly hinders diffusion of water. Therefore, by holding water locally, the drying property is poor, and therefore, the skin side is forever given a wet feeling.

Japanese Patent Application Laid-Open No. Hei 10-25643 proposes disposing cellulose multifilaments on the back surface (outer surface) and the middle layer of a multi-layered fabric, and holding the water supplied to the surface on the back surface or the middle layer. Has been
Although this method has an effect on drying properties and prevention of re-wetting of water, the fiber on the surface in direct contact with the skin has no hygroscopicity, so absorption of sweat is slow, and it is not sufficient in terms of stickiness.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, and to provide a sport in which stickiness is suppressed by providing water diffusion and quick drying.
An object of the present invention is to obtain a multilayer fabric having excellent cooling properties suitable for various types of clothing such as innerwear.

[0007]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to achieve the above object, and have found that fibers having both water absorbing properties, hygroscopic properties and hydrophobic properties which are contradictory to each other are formed on one surface layer of a multilayer structure fabric. It was clarified that a desired fabric could be obtained by disposing only the lacquer, and the present invention was achieved.

[0008] Thus, according to the present invention, the surface of one surface is composed of a multi-layered fabric in which at least 20% of the surface area is made of a hygroscopic fiber, and the hygroscopic fiber has a communicating hole from the fiber surface to the hollow portion. There is provided a fabric having excellent cooling properties, characterized in that the fabric is a hygroscopic fiber in which a hollow portion of hydrophobic hollow fibers scattered on the surface is filled with a hygroscopic gel.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
The present invention relates to a multi-layer fabric having two or more layers, wherein at least 20% of the surface area of the surface is filled with a moisture-absorbing gel in the hollow part of the hollow fiber in which communication holes from the fiber surface to the hollow part are scattered on the fiber surface. It is constituted by the moisture absorbing fiber.

When this fabric is worn so that the hollow fibers come into contact with the skin and sweats, the moisture-absorbing gel in the hollow fibers that come into contact with the skin absorbs the sweat quickly. At this time, the moisture-absorbing gel is filled. Since the surface of the hollow fiber is hydrophobic, the surface in contact with the skin is always dry. Further, the sweat absorbed by the hollow fiber filled with the moisture-absorbing gel is diffused inside the hollow fiber, and then diffused to the opposite side of the skin. Here, since there is a space in the hollow fiber that is not filled with the gel, the effect of diffusing sweat is further enhanced.

It is preferable that the surface opposite to the surface in contact with the skin is made of a hydrophobic fiber from the viewpoint of increasing the drying speed of the fabric and exhibiting the effects of the present invention more remarkably. The hydrophobic fiber is, for example, a synthetic fiber such as polyamide, polyester, acrylic, polyethylene, or polypropylene, and may be in the form of a multifilament, a processed yarn, or a spun yarn. It is preferred in that respect. Also, the cross-sectional shape is not particularly limited, but the use of a modified fiber, particularly a modified fiber having a groove, such as a W-shaped or Y-shaped cross-section, increases the capillary suction force that contributes to water diffusion. More preferred.

Examples of the hollow fiber used in the present invention include hydrophobic synthetic fibers such as polyamide, polyester, acrylic, polyethylene, and polypropylene, and hydrophobic synthetic fibers such as polyester and polyamide, and among them, polyester fibers are most preferable. Is exemplified. Also,
These fibers may contain a stabilizer, an antioxidant, a flame retardant, an antistatic agent, an optical brightener, a catalyst, a coloring inhibitor, a heat-resistant agent, a coloring agent, inorganic particles, and the like, if necessary. .

In particular, regarding the above polyester fiber, the polyester referred to herein includes terephthalic acid as a main acid component and alkylene glycol having 2 to 6 carbon atoms, that is, ethylene glycol, trimethylene glycol, tetramethylene glycol. Polyester comprising at least one glycol selected from pentamethylene glycol and hexamethylene glycol, preferably at least one glycol selected from ethylene glycol and tetramethylene glycol, more preferably ethylene glycol as a main glycol component Is exemplified.

Further, a polyester in which a part of the terephthalic acid component is replaced by another difunctional carboxylic acid component may be used, and / or a part of the glycol component is replaced by a diol component other than the glycol. It may be polyester.

The bifunctional carboxylic acids other than terephthalic acid used herein include, for example, isophthalic acid, naphthalenedicarboxylic acid, diphenyldicarboxylic acid, diphenoxyethanedicarboxylic acid, adipic acid, sebacic acid,
Aromatic, aliphatic and alicyclic bifunctional carboxylic acids such as 1,4-cyclohexanedicarboxylic acid can be mentioned. Examples of the diol compound other than the glycol include, for example, cyclohexane-1,4-dimethanol,
Aromatic, aliphatic and alicyclic diol compounds such as neopentyl glycol, bisphenol A and bisphenol S can be mentioned.

Such a polyester may be synthesized by an arbitrary method. For example, in the case of polyethylene terephthalate, usually, terephthalic acid and ethylene glycol are directly subjected to an esterification reaction or dimethyl terephthalate. A lower alkyl ester of terephthalic acid and ethylene glycol or a reaction between terephthalic acid and ethylene oxide to form a terephthalic acid glycol ester and / or a lower polymer thereof. It can be produced by a step reaction and a second step reaction in which the reaction product of the first step is heated under reduced pressure to carry out a polycondensation reaction until a desired degree of polymerization is obtained. The polyester may contain a matting agent, an ultraviolet absorber, an antioxidant and the like, which is rather preferable from the viewpoint of dyeing fastness such as light fastness.

The fineness, the number of filaments, the cross-sectional shape, the fiber properties, the fine structure and the polymer properties (such as molecular weight) of the fibers are not limited at all. further,
The fibers referred to in the present invention include various fiber aggregate forms such as yarns, spun yarns and cords.

Next, such a fiber can be made into a hollow fiber by a conventionally known method. For example, a method described in Japanese Utility Model Publication No. 2-38779 can be arbitrarily adopted. The hollow ratio of the hollow fiber is preferably in the range of 5 to 60% in order to maintain the necessary properties as a fiber and to fill a sufficient amount of gel, and to be 20 to 20%.
More preferably, it is in the range of 50%.

In the present invention, one surface area of 20
% Or more, in order to obtain a multi-layer structure fabric composed of hygroscopic fibers in which the hollow portions of the hollow fibers in which the communication holes from the fiber surface to the hollow portions are scattered on the fiber surface are filled with a hygroscopic gel, for example, A method of obtaining a multi-layer woven or knitted fabric using a hygroscopic fiber and other fibers, or a multi-layer woven or knitted fabric using hollow fibers in which communication holes from the fiber surface to the hollow portion are scattered on the fiber surface and other fibers A method of filling a knitted article with a hygroscopic gel, or a woven knitted article having a multilayer structure composed of hollow fibers and other fibers is first made, and then, on the fiber surface of the hollow fibers,
For example, a method of filling the moisture-absorbing gel after forming a communication hole from the fiber surface to the hollow portion is exemplified.From the viewpoint of productivity, a woven knitted fabric composed of hollow fibers and exceptional fibers is first made, and then the hollow fiber is formed. It is preferable to form a communication hole from the fiber surface to the hollow portion on the fiber surface of the fiber, and then fill the fiber with the hygroscopic gel.

At this time, the structure of the fabric and the fineness of the moisture-absorbing fiber are adjusted so that the moisture-absorbing fiber having the hollow portion filled with the moisture-absorbing gel occupies at least 20% of the surface area of one surface of the obtained multilayer structure fabric. Must be adjusted appropriately.

The ratio of the hygroscopic fiber is 20% of the surface area.
If the amount is less than the above range, the hygroscopicity of the fabric is reduced, and the effect of the present invention is not sufficiently exhibited.

The multilayer structure referred to in the present invention is a fabric having a two-, three- or more-layer structure,
Any layered fabric may be used as long as it has two or more layers. Furthermore, with the multilayer structure fabric referred to in the present invention, each layer such as the front surface, the intermediate layer, and the back surface does not need to be completely independent, and as long as the object of the present invention is not impaired, an apparently integrated structure is obtained. The fibers constituting each layer may be partially mixed with the fibers constituting adjacent layers.

Such a multi-layer structure fabric may be manufactured by any method such as a knit or a woven fabric, and is not limited to a special structure. For example, for knitting, punch roma, one bag, Milan rib, tack rib, kanako,
Single warp knitted fabrics such as circular knits such as single picket and double picket, half back half, quins coat, sharkskin and double warp knitted fabrics such as double raschel and double tricot are raised. Any structure may be used as long as the fabric can have a multilayer structure such as a woven fabric and a weft double woven fabric.

As a method for forming a communication hole from the fiber surface to the hollow portion, for example, in the case of a polyester fiber, a polyester obtained by copolymerizing an organic sulfonic acid compound is mixed and melt-spun to obtain a hollow fiber. Thereafter, a method of forming a large number of communicating portions (micropores) by alkali reduction treatment (Japanese Patent Laid-Open No. 1-20319), or a method of reducing the polyester hollow fiber to which an organic sulfonic acid metal salt is added and blended, is performed. A method of forming a large number of communicating portions (micropores) from the fiber surface to the hollow portion by treating (JP-B-61-60188, JP-B-61-1986)
No. 31231) can also be adopted.

Furthermore, if a hollow fiber having a hollow ratio of 20 area% or more is subjected to an alkali weight reduction treatment, a low-oriented portion and a low-oriented portion along the longitudinal direction of the fiber can be obtained without using the metal salt of an organic sulfonic acid as described above. / Or as a removal mark of the deformation strain concentration part,
A large number of communication holes (microgrooves) can be formed (JP-A-7-26466). Also, a method for obtaining a hollow fiber having a communicating portion (split groove) extending from the fiber surface to the hollow portion in the longitudinal direction of the fiber by subjecting the core-sheath type composite fiber to an alkali weight reduction treatment and decomposing and removing the core polymer (Japanese Patent Laid-Open No. 6
No. 173167) is also used.

The hollow fiber used in the present invention may be any hollow fiber in which the communication holes extending from the fiber surface to the hollow portion are scattered on the fiber surface. In this case, the size and number of the communication holes are not particularly limited. Although not required, it is preferable from the viewpoint of durability such as washing durability that the size of the communicating hole is smaller than the size of the polymer filled in the hollow portion in the non-swelling state in the dry state.

Next, in the present invention, as the moisture-absorbing gel filled in the hollow portion of the hollow fiber, a gel obtained by gelling a liquid having a gel-forming ability is preferable.

Here, the liquid having a gel-forming ability refers to a liquid whose state can be reversibly or irreversibly changed from a liquid to a gel under physical and / or chemical stimuli.

Examples of such a gel-forming liquid include vinyl monomers, such as an aqueous solution containing di (meth) acrylate of polyethylene glycol, and a liquid containing a monomer capable of undergoing a polymerization and crosslinking reaction. Is mentioned.

The vinyl monomer may be water-soluble or water-insoluble.
Those which are water-soluble from the viewpoint of processing stability and the like are preferably used.

Such water-soluble vinyl monomers include:
It is preferable to use a water-soluble vinyl monomer having at least one group selected from a carboxylic acid group, a carboxylic acid group, a sulfonic acid group and a sulfonic acid group. Specific examples thereof include acrylic acid, methacrylic acid, crotonic acid, Cinnamic acid, maleic acid, fumaric acid, citraconic acid, mesaconic acid, itaconic acid, methallyl sulfonic acid, 2-acrylamido-2-methylpropane sulfonic acid and their Na salts, Li salts, K salts and the like. These can be used alone or as a mixture of two or more.

Further, as the water-soluble vinyl monomer, a polyoxyethylene polyether represented by the following formula is also preferably exemplified.

[0033]

Embedded image

In the above formula, Z is a residue of an organic compound having an active hydrogen of 1 to 6 and a molecular weight of 300 or less, and is methanol, propanol, butanol, phenol, ethylene glycol, bisphenol A, propylene glycol, butylene glycol, butane. Diol, neopentyl glycol, glycerin, trimethylolpropane,
Examples thereof include residues of hydroxyl group-containing compounds such as triethanolamine, diglycerin, pentaerythritol, and sorbitol, and residues of primary and secondary amines such as ethylenediamine, hexamethylenediamine, and diethylenetriamine. Among them, a hydroxyl group-containing compound is preferable.

R ¹ is mainly composed of an ethylene group, and may be partly another alkylene group such as a propylene group or a butylene group as long as the polyoxyethylene-based polyether (1) is water-soluble. R ² is an acryloyl group or a methacryloyl group, and a part thereof may be a hydrogen atom or a lower alkyl group such as a methyl group, an ethyl group, a propyl group, and a butyl group.

K is an integer of 1 to 6 corresponding to the number of active hydrogen atoms of the organic compound as a source of Z. l is a positive integer and may be the same or different between or within molecules. If the value of l is too large, the viscosity of the aqueous solution becomes high, and it may become difficult to penetrate into the hollow part. Therefore, the k × l value is preferably 80 or less.

Preferred specific examples of such water-soluble polyoxyethylene-based polyethers include polyethylene glycol (average molecular weight: 400) di (meth) acrylate, polyethylene glycol (average molecular weight: 600) di (meth) acrylate, and polyethylene. Glycol (average molecular weight: 1000) di (meth) acrylate, methoxypolyethylene glycol (average molecular weight: 1320) mono (meth) acrylate, bisphenol A ethylene oxide 30 mol adduct di (meth) acrylate, glycerin ethylene oxide adduct (Meth) acrylate, tri (meth) acrylate of glycerin ethylene oxide adduct, di (meth) acrylate of trimethylolpropane ethylene oxide adduct, trimethylolpropane Birds emission oxide adduct (meth)
Acrylate, di (meth) acrylate of sorbitol ethylene oxide adduct, di (meth) acrylate of sorbitol ethylene oxide adduct, tri (meth) acrylate of sorbitol ethylene oxide adduct, tetra (meth) acrylate of sorbitol ethylene oxide adduct, Examples thereof include penta (meth) acrylate of sorbitol ethylene oxide adduct and hexa (meth) acrylate of sorbitol ethylene oxide adduct.

Further, such a water-soluble polyoxyethylene-based polyether may be used alone alone,
Alternatively, two or more kinds may be used in combination. Further, the use of at least part of a water-soluble vinyl monomer having two or more vinyl groups in the molecule as such a water-soluble vinyl monomer is because the monomer functions as a cross-linking agent, thereby achieving sufficient gelation. Is preferable.

The amount of the vinyl monomer is preferably in the range of 1 to 50% by weight based on the weight of the hollow fiber, and more preferably 5 to 50% by weight.
Particularly preferred is a range of -30% by weight.

The gel-forming liquid used in the present invention may optionally contain a function-imparting agent. Examples of the functionalizing agent include medicinal properties such as aloe, cucumbers, and garlic, substances having a plant flavor (plant extracts and plant proteins), bacterial cultures such as collagen, keratin, and sericin, and medical and physiological treatments for wound treatment. Octacarboiron phthalocyanine, a function-imparting substance (animal protein), an electric function-imparting substance (ceramic fine particles) for conductors such as titanium oxide, silica, alumina, and zeolite;
Dimethyl phthalate, organosilicon quaternary ammonium,
Antimicrobial and deodorant substances such as organic nitrogen compounds, various flavors (flavors and fragrances), water-absorbing, moisture-absorbing and water-retaining substances such as polyethylene glycol, and compounds having a perfluoroalkyl group. Water-based, oil-repellent substances and the like can be appropriately mentioned.

Further, the liquid having a gel-forming ability can easily have a role as a function-imparting agent and a role as a liquid capable of gelling when dissolved in the liquid having a gel-forming ability. Low molecular weight polyethylene glycol, acrylate, methacrylate, polyacrylate, polymethacrylate, etc., which can be used, can simultaneously obtain functions such as water absorption, moisture absorption, and water retention. I can do it.

Further, as the liquid having a gel-forming ability used in the present invention, it is preferable to use a liquid having a high cloud point. More specifically, when introducing the liquid having a gel-forming ability into a hollow portion, It is preferable to use one having a cloud point higher than the temperature. If the cloud point is lower than the temperature at which the liquid having a gel-forming ability is introduced into the hollow portion, uniform and reproducible processing may not be performed, and the reproducibility of filling the hollow portion may be reduced. In some cases, the dispersion is insufficient and the washing durability is insufficient.

Here, the method of filling the hollow portion of the hollow fiber with the liquid having a gel-forming ability is as follows: (1) A hollow fiber having a communicating hole is put in a closed container, and the inside of the container is evacuated using a rotary pump. (2) a method of introducing a liquid having a gel-forming ability into a hollow portion by injecting the liquid into a hollow portion by injecting a liquid having a gel-forming ability and maintaining the reduced pressure state for a certain period of time using a rotary pump. A method of immersing the hollow fiber in a liquid having a gel-forming ability and then leaving it at room temperature to fill the hollow portion with the liquid (called a cold batch method); After immersion in a liquid having the following formula: Among these, the method (3) is more preferable because continuous production is possible.

At this time, a gelling initiator may be contained in the above-mentioned liquid having a gel-forming ability. In particular, when the filling method involving heating is employed as described in the above (3),
The gelation starts simultaneously with the filling of the liquid having the gel forming ability into the hollow portion, and the filling of the liquid becomes insufficient. Therefore, first, only the liquid having the gel forming ability is filled, and after the filling is completed, the gelation initiator Is preferably applied by a spray method or the like, and a gelling initiator is preferably contained in the liquid.

The above-mentioned gelling initiator is not particularly limited as long as it can polymerize and cross-link the above-mentioned vinyl monomer, and any ordinary radical generator can be used arbitrarily. In addition, a polymerization initiator is preferably used for water-absorbing, hygroscopic, and water-retaining substances such as the low-molecular-weight polyethylene glycol, acrylate, methacrylate, polyacrylate, and polymethacrylate. Can be

These radical initiators and polymerization initiators include, for example, peroxides such as potassium persulfate, ammonium persulfate, hydrogen peroxide and benzoyl peroxide;
Cerium ammonium salts such as cerium ammonium and ceric ammonium nitrate, or α, α′-azobisisobutyronitrile, 2,2′-azobis (amidinopropane) dihydrochloride, 2,2′-azobis (N , N'-dimethyleneisobutyramidin) dihydrochloride, 2- (carbamoylazo) isobutyronitrile and the like.

The amount of the gelling initiator used is preferably in the range of 0.01 to 5% by weight based on the weight of the hollow fibers.
Especially, the range of 0.5 to 2% by weight is particularly preferable. If the amount is less than 0.01% by weight, for example, the gelation of the vinyl monomer may be insufficient, and if it exceeds 5% by weight, the washing durability of the gel filled in the hollow portion is reduced. Tend to.

Next, the gel-forming liquid filled in the hollow portion of the hollow fiber is gelled by the above-mentioned method. The method is as follows: (a) The gel-forming liquid can be dissolved or dispersed. A method of heat-treating the hollow fiber in the liquid to remove the gel-forming liquid attached to the fiber surface at the same time or after removing the gel-forming liquid in the hollow portion, b) a method of performing a heat treatment under an air atmosphere, a nitrogen atmosphere, a normal pressure steam atmosphere, or a heated steam atmosphere;
Specific examples include (c) a method of applying a physical stimulus such as heat or electromagnetic waves, and (d) a method of holding under reduced pressure. Among them, the method (a) is more preferable because the liquid adhering to the fiber surface can be removed at the same time as the gelation, and the efficiency is high.

In the above-mentioned gelation, when the gelling initiator is not contained in the liquid having a gel-forming ability, the gelling initiator is applied prior to the gelation as described above.

[0050]

EXAMPLES The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples. In addition, each physical property in an Example was measured by the following method.

(1) Proportion of Gel for Making Hollow Fiber Hollow Volume A cross section of the fabric was photographed with a scanning electron microscope. The ratio was measured, and the average value of the ratios of the cross-sectional areas of the 100 gels to be converted into hollow fibers was defined as the ratio of the gel to the hollow volume of the hollow fibers.

(2) Drying property A 10 cm square knitted fabric was placed on an electronic balance placed in a room where the ambient temperature was adjusted to 40 ° C. and the relative humidity was adjusted to 50%.
0.3 cc of water was dropped on the surface (the side of the skin), and the time required for complete drying was measured.

(3) Feeling of Wetness and Stickiness A 0.3 cc water drop was placed on a glass plate, and a 10 cm square knitted fabric was placed on the water drop so that the surface (skin side) was facing down. After applying water to the knitted fabric for 30 seconds while applying a load of ² cm2, the cloth that has absorbed water is placed on the upper arm of a total of 10 panelists, 5 men and women, so that the water absorption surface is on the skin side, and a feeling of wetness is obtained. The sensory evaluation of stickiness and stickiness was scored on the basis of the following criteria, and the average value of 10 persons was used as the characteristic value of wet feeling and stickiness. 4 points: There is no wet feeling, no sticky feeling and light. 3 points: I feel wet and cold, but not sticky. 2 points; feels wet and cold and sticky. 1 point: Feeling wet and cold, and the fabric is very sticky.

Example 1 (1) Preparation of Work Cloth 55 dtex / 20-filament polyester multifilament round hollow section yarn having a hollow ratio of 40% and 83 dte
Using a 28-gauge portable circular knitting machine in a single-bag knitting structure using x / 24 filament polyester round solid yarn,
A double-layer knitted fabric having a surface (skin side surface) having a hollow cross-section yarn and a back surface having a solid yarn was obtained. Perform scouring on this double-layer knitted fabric,
Then, using a high-pressure liquid jet dyeing machine, it is treated in a solution containing 0.5 g / liter of sodium carbonate at a temperature of 130 ° C. for 30 minutes, and has a hollow fiber portion having a communication hole of 2 μm or less in a two-layer structure. I got the land.

(2) Preparation of liquid having hygroscopic gel-forming ability As a liquid having hygroscopic gel-forming ability, a liquid having the formulation shown in Table 1 below was used. The two-layer knitted fabric (width: 120 cm, length: 20 m) prepared in the above (1) is immersed in a liquid having a hygroscopic gel-forming ability shown in Table 1 below. The squeezing was performed so that the amount of adhesion was 120% by weight with respect to the knitted fabric, and subsequently, the residence time was 7 minutes at a temperature of 100 ° C. under steam using a normal-pressure steam steamer (“Normal-pressure steamer” manufactured by Hirano Techseed). Heat treatment was performed so that

Thereafter, a 5% aqueous solution of ammonium persulfate (reagent first grade; manufactured by Wako Pure Chemical Industries, Ltd.) as a gelling initiator was applied to the knitted fabric by spraying at 20 g / m ^2.
Sprayed. Thereafter, the knitted fabric was immersed in hot water of 100 ° C. for 5 minutes while stirring, and then the liquid was gelled, and then a dry heat setting was performed.

[0057]

[Table 1]

As a result, 100% of the surface (skin side) is
A two-layer knitted fabric comprising a moisture-absorbing fiber in which a hollow portion of a hollow fiber in which a communication hole from the fiber surface to the hollow portion is scattered on the fiber surface was filled with a moisture-absorbing gel was obtained. The ratio of the moisture-absorbing gel in the hollow fibers constituting the double-layer knitted fabric to the hollow inside is 20%.
%, Drying property for 4 minutes, wet feeling and sticky feeling.
8 points, and the knitted fabric was excellent in refreshing feeling.

[Embodiment 2] In the embodiment 1, 55 dt
ex / 20 filament polyester multifilament round hollow fiber, 28 dtex / 10 filament polyester multifilament round hollow fiber and 28 dtex
The same procedure as in Example 1 was carried out except that a mixed fiber with a tex / 10 filament polyester multifilament round solid yarn was used, and 50% of the surface (skin side surface) was communicated from the fiber surface to the hollow portion. A two-layer structure knitted fabric consisting of a moisture-absorbing fiber in which the hollow portion of the hollow fiber having holes scattered on the fiber surface was filled with a moisture-absorbing gel was obtained. The proportion of the moisture-absorbing gel in the hollow fibers constituting the double-layer knitted fabric in the hollow interior is 20%,
The drying property was 5 minutes, the wet feeling and the sticky feeling were 3.6 points, and the knitted fabric was excellent in refreshing feeling.

Comparative Example 1 The double-layered knitted fabric prepared in (1) of Example 1 was directly evaluated for dryness, wet feeling and stickiness without filling the gel. Since the double-layered knitted fabric does not have a water absorbing and moisture absorbing ability, the drying property is 20%.
More than a minute, the wetness and stickiness were 1 point, and only a knitted fabric without a refreshing feeling was obtained.

[Comparative Example 2] In Example 1, 55 dt
Single-bag knitting was carried out in the same manner as in Example 1 except that a cotton yarn of No. 60 single yarn was used in place of the polyester multifilament round hollow fiber of ex / 20 filament, and 100% of the surface (skin side surface) was made of cotton yarn. Was obtained.
The dryness of the double-layered knitted fabric was 15 minutes, and the wetness and stickiness were 1.5 points, and only a knitted fabric having no cool feeling was obtained.

[0062]

According to the present invention, it has an excellent refreshing property suitable for various kinds of clothing such as nighties, blouses, sportswear, innerwear, etc., having a quick water absorption, a hygroscopicity and a smooth surface, and suppressing a sticky feeling. A multilayer fabric is obtained.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (reference) // A41D 31/00 501 A41D 31/00 501D 31/02 31/02 A C09K 3/18 C09K 3/18 (72) Inventor Toyoshi Suzuki 3-4-1, Amihara, Ibaraki-shi, Osaka F-term in the Osaka Research Center, Teijin Limited (Reference) 4H020 AA03 AA04 AA05 AB02 4L002 AA07 BB01 CB01 DA01 DA03 DA05 FA01 FA06 4L033 AB02 AB04 AC07 AC15 CA18 4L048 AA20 AA39 AA54 AA56 AB07 AC15 BA09 CA00 CA07 DA01 DA03 EB04

Claims (3)

[Claims] 1. On the other hand, a multi-layered fabric in which at least 20% of the surface area of the surface is made of a hygroscopic fiber, the hygroscopic fiber is formed of a hydrophobic material in which communication holes from the fiber surface to the hollow portion are scattered on the fiber surface. A fabric excellent in refreshing properties, characterized in that it is a hygroscopic fiber in which a hygroscopic gel is filled in a hollow portion of a water-soluble hollow fiber. 2. The fabric according to claim 1, wherein the moisture-absorbing gel occupies 2 to 80% of the volume of the hollow portion of the hollow fiber. 3. The fabric having excellent cooling properties according to claim 1, wherein the other surface of the multilayer structured fabric is constituted by hydrophobic fibers.