JPS60134036A - Yarn or cloth - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a yarn or fabric based on synthetic 1liN with improved comfort.

[Prior art and its problems]

Conventionally, yarns or fabrics made of synthetic fibers have been widely recognized for their excellent properties, such as strength, abrasion resistance, wrinkle resistance, and wash-and-wear properties, and have rapidly grown in popularity. However, this is only due to the merits of strength and easy-care properties; however, the characteristics related to the internal climate of the garment and its comfort were not taken into consideration, so The industry strongly desired improvements, as underwear such as underwear has a stuffy feeling that causes discomfort. In addition, in recent years, sportswear, which has been attracting attention, has focused on comfort such as feeling stuffy, and there is also a strong demand in the industry for the development of comfortable wear that takes into account the climate inside the clothes. The reality is that there are.

In response to such requests, for example, Japanese Patent Application Laid-Open No. 58-144
No. 150 uses a two-layer knitted fabric with different water retention properties, while JP-A-56-134263 and JP-A-56-144272 use a ubiquitous water-absorbing fabric with water repellency on the surface layer and water absorption on the back layer. JP-A No. 58-104235 discloses an absorbent fabric in which hydrophilic 1ltRt with water-absorbing properties is placed in the center layer of the fibrous structure, and hydrophobic synthetic m fibers are placed in the relatively surface layer of the fibrous structure. Each of them proposes a water-permeable tstatm structure. However, all of these methods consider only the water absorption performance and ignore the moisture absorption performance, and are therefore insufficient in terms of comfort considering the climate inside the clothes.

In addition, Japanese Patent Publication No. 58-9174 proposes a fabric made by interweaving spun yarn with low water absorption and hygroscopicity and filament with high water and hygroscopicity, but this simply involves alternating one system with different water and hygroscopicity. However, with such a fabric, the stickiness and stuffiness caused by sweating may be improved, but overall a comfortable climate inside the clothes cannot be achieved.

[Purpose of the invention]

Against this background, the present invention aims to design comfortable clothing that takes into account the climate inside the clothing, and specifically, to design comfortable clothing that does not feel sticky or stuffy when worn, especially when sweating. As a result of intensive study, we arrived at the following invention.

[Structure of the invention]

Synthetic I! in which a relatively inner layer of the yarn consisting of a taIlt aggregate has moisture absorption properties! On the other hand, the relatively outer layer of the yarn is made of ordinary synthetic fibers or is mainly made of synthetic fibers with water-absorbing properties, and the total yarn or fabric is Yarn or fabric with a moisture absorption rate of 5% or more.

[Summary of effects]

By adopting such a thread or fabric design, we have created a material that does not feel stuffy when worn, which was not possible with conventional technology, and also does not feel sticky when directly applied to the skin when sweating, and has an extremely cool feeling. It becomes possible to obtain.

[Mechanism of action of the invention]

A means for obtaining such a material having the structure of the present invention which is excellent in comfort and comfortable to wear will be explained.

First, synthetic fibers with relatively high hygroscopicity present in the inner layer are obtained by graft polymerization of a hydrophilic vinyl monomer such as acrylic acid or methacrylic acid, and then, if necessary, by substitution with an alkali metal. Alternatively, synthesis III
There are methods of obtaining vinylbiolidone or its derivatives by copolymerization or blend spinning in the polymerization step, but the former method of graft polymerization is industrially advantageous.

In addition, the term "synthetic six" as used in the present invention refers to synthetic fibers in general such as polyamide, polyester, and polyacrylonitrile, but when polyacrylonitrile and the like are forcibly imparted with hygroscopic properties, the fiber physical properties change drastically. Among the synthetic IJH, polyamide and polyester synthetic fibers are preferred because they have the advantage of being easy to graft polymerize (and easily impart water absorption performance).

It is also possible to use natural m fibers such as hygroscopic fibers as a hygroscopic material, but such fibers have a moisture absorption rate of 20'C x 65%.
RH is only 7-8%, and its moisture absorption performance is too poor.
Even with a two-layer structure and synthetic fibers with poor moisture absorption performance, the comfort of the present invention cannot be achieved.

Next, common synthetic fibers relatively present in the outer layer portion include polyamide, polyester, polyacrylonitrile, polyethylene, polypropylene, vinylon, and the like.

In addition, the synthetic IlH present in these relatively outer layer parts may have normal hydrophobic properties, but synthetic IlH with hydrophilic compounds attached to the surface and imparted with water absorption and water permeability properties may be used.
1 navy blue is more preferable in achieving the object of the present invention.

A method for attaching this hydrophilic compound to the surface is to apply a compound such as polyethylene glycol diacrylate, dimethacrylate, diglycidyl ether, diisocyanate, etc. to the surface of the synthetic fiber and fix it by heat treatment such as dry heat or moist heat. There are methods of fixing polyester resins, polyamide resins, and sulfopolyester resins containing polyethylene glycol to the surface of synthetic fibers by immersion heating, pad drying, pad steaming, and the like.

Next, according to the structure of the present invention, a method is adopted in which synthetic fibers with high moisture absorption performance are arranged in a relatively inner layer of the yarn, and ordinary synthetic fibers or synthetic fibers with water absorption and permeability are arranged in a relatively outer layer of the yarn. , we will prepare spun yarn, filament yarn, and processed yarn made of synthetic fibers with high moisture absorption performance in advance.
In addition, there is a method of covering spun yarn, filament yarn, processed yarn, etc. made of ordinary synthetic fibers or synthetic mN with water absorption performance, or a method of covering with synthetic fibers that are easy to graft polymerize, such as polyamide and polyester.
If difficult-to-graft synthetic fibers are made into a yarn form by blending or blending in advance, then only synthetic IIM, which is easy to graft polymerize, is graft-polymerized, resulting in a graft-polymerized synthetic fiber! Since the fiber 1 has a large processing shrinkage, it penetrates into the relatively inner layer of the yarn, resulting in a material like the structure of the present invention.

Next, in the material of the present invention, the mixing ratio of synthetic fibers with relatively high moisture absorption performance in the inner layer part and normal synthetic fibers or synthetic fibers with water absorption performance in the relatively outer layer part is 20:
80-80: 20 is good, more preferably 40:
60-60:40 is good.

This synthetic fiber with relatively good moisture absorption performance in the inner layer is 20%
% or less, when worn in the form of a cloth, the feeling of stuffiness becomes significant and the comfortable feeling that is the object of the present invention cannot be obtained. If it exceeds 80%, the hygroscopicity becomes extremely good, but since the proportion of the outer layer is relatively small, the coverage of the synthetic fibers with hygroscopicity that occupies the inner layer decreases, and as a result, especially When a synthetic m-fiber with moisture absorption properties obtained by graft polymerization of hydrophilic monomers such as acrylic acid or methacrylic acid and subsequent substitution treatment with an alkali metal is used, it becomes slimy by absorbing sweat. This is undesirable because it causes a sticky or sticky feeling, and also reduces the dimensional stability during washing, resulting in a significant deterioration in quality.

Next, the fiber form used in the present invention is not particularly limited to filaments, processed yarns, spun yarns, etc., but for the synthetic 111ft that occupies a relatively inner layer, it is better to use filaments or processed yarns for the cover. ring thread lI
Construction is advantageous.

Furthermore, the single fiber degree is not particularly limited, and may be used as long as it is used for general clothing.

Next, as for the fabric form, the above-mentioned inner and outer layer yarns are used as a normal knitted fabric, but when used for inner underwear etc., the tissue form of the part facing the human body is made to be a relatively uneven structure. It is preferable to leave it on because it does not come into close contact with the human body during sweating, further helps eliminate the sticky feeling, and improves the feeling of wearing comfort.

Next, the total moisture absorption rate of the yarn of the present invention under the conditions of 20°C and 65% RH is regulated to be 5% or more, but if the moisture absorption performance is lower than this, it is difficult to eliminate the stuffy feeling. difficult to achieve the objective.

As explained above, the present invention uses synthetic fibers that have been imparted with a high level of moisture absorption performance through graft polymerization, etc., in the relatively inner layer of the yarn, and normal or synthetic fibers that have been imparted with water absorption ability in the relatively outer layer of the yarn. By making a knitted fabric by arranging it in the area and making a knitted fabric using such yarn, it is possible to eliminate the stickiness caused by sweat absorption caused by high moisture absorption.
It eliminates the feeling of stuffiness, and furthermore, the water absorption performance allows sweat to be absorbed quickly, and at the same time, it is possible to increase water permeability to the outside.This is the objective of the present invention, which does not make you feel sticky when sweating, and has high moisture absorption performance. This provides a product that is extremely comfortable to wear and does not feel stuffy.

Of course, the present invention mainly consists of synthetic fibers, but a small amount of semi-synthetic fibers such as cotton, linen, wool, silk, natural I13 navy blue, or rayon may also be included within the range that does not impede the purpose of the present invention. There is nothing wrong with that.

The present invention will be further explained below using specific examples.

Example 1, Comparative Example 1.2 After graft polymerizing 9.5% of acrylic acid, 6-nylon filament was substituted with sodium carbonate (
40 denier, 13 filaments) as an acid component, 5
- Sodium sulfoisophthalic acid is 30 mol%, terephthalic acid is 50 mol%, isophthalic acid is 20 mol%, while ethylene glycol is 8 mol% as an alcohol component.
By winding polyester filaments (40 denier, 13 filaments) to which a sulfopolyester resin consisting of 0 mol% and 20 mol% of diethylene glycol is attached using a covering machine, the inner layer of the yarn has a relatively highly hygroscopic 6 A yarn was obtained in which nylon and polyester with high water absorption performance were arranged in a relatively outer layer of the yarn. This yarn was knitted into a half-tricot knitted fabric, which was then sewn into women's lingerie. When this sewing material was actually worn and evaluated for stuffiness and stickiness, it was confirmed that the material had extremely good thermal comfort. The suction rate of this product (at 20°C and 65% RH) is 8.4%.
Also, water absorption (bisic method: JIS-Ll 079
) showed a good value of 150M (Example 1).

Next, as a comparison, a half tricot (Comparative Example 1) consisting only of highly hygroscopic 6 nylon filament used for the inner layer of the yarn in this example, and a water absorbing and permeable material used for the outer layer of the yarn in this example. A half tricot (Comparative Example 2) consisting only of polyester filaments with high viscosity was knitted and sewn into lingerie in the same manner as in this example and evaluated for wearing.The former had a remarkable effect in eliminating unevenness, but , during sweating,
It had a strong slimy and sticky feel, which caused discomfort to the wearer. On the other hand, the latter had good sweat absorption properties when sweating, and did not give a slimy or sticky feeling, but since it did not have moisture absorption properties, it gave a strong stuffy feeling, which also caused discomfort, and the purpose of the present invention is to could not be achieved.

Moisture absorption rate Water absorption Sticky feeling Stuffy feeling Example 18.4% 150# No No Comparative Example 1 16.3% 105m Yes No Comparative Example 20,
4% 15611m No Yes Example 2 A mixed yarn consisting of 6 nylon filaments (40 denier, 13 filaments) and ordinary polyester filaments (50 denier, 1 day filament) was subjected to false twisting,
Next, it was soft rolled into a cheese shape, and heated in a package dyeing machine at 90°C for 60 minutes with a solution consisting of 2OQ/α of acrylic acid and 19/α of potassium persulfate. A 10.2% yarn was obtained. next,
Heat treatment was performed at 80° C. for 30 minutes with a solution consisting of 8a/n sodium carbonate to obtain a sodium-substituted acrylic acid grafted nylon mixed fiber yarn. When this yarn was dyed with a cationic dye, it was confirmed that compared to the yarn without acrylic acid grafting, the nylon side was located in a relatively inner layer of the yarn, and the relatively outer layer of the yarn was mostly occupied by polyester. Ta.

Next, the yarn was knitted into a smooth knitted fabric, and in the state of the fabric, a fluorescent dye and the sulfopolyester resin used in Example 1 were added at 2% ovIf, respectively, using a jet dyeing machine.
Heat treatment was performed at 120° C. for 30 minutes with a solution containing 1% OWF to brighten the film and attach the sulfopolyester resin to the polyester side. When such a fabric was sewn into a T-shirt and actually worn, it was found that the T-shirt did not feel stuffy, had good sweat absorption and permeability, and was extremely comfortable to wear. The moisture absorption rate of this fabric is 8
．． 7%, water absorption (bisic method) was 162% (
Example 2).

Next, as a comparison, there was a mixed fiber yarn similar to this example that was not treated with acrylic acid graft and sulfopolyester resin (Comparative Example 3), and a yarn that was treated with sulfopolyester resin only without acrylic acid graft. (Comparative Example 4) was prepared and then processed and manufactured in the same manner as in this example, but the former had a strong stuffy feeling and poor sweat absorption, while the latter had good sweat absorption but had a stuffy feeling. However, none of them satisfied the purpose of the present invention.

Patent applicant Higashi Shikikai Co., Ltd.

Claims (1)

[Claims] The relatively inner layer of the yarn consisting of aggregate No. 11 is made of synthetic fibers having moisture absorbing properties, while the relatively outer layer of the yarn is made of ordinary synthetic lIN or is mainly made of synthetic fibers having water absorbing properties. A yarn or fabric having a total moisture absorption rate of 5% or more at 20° C. and 65% RH.