JPH0418527B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a clothing fabric mainly made of synthetic fibers that provides excellent comfort when worn.

[Prior art and its drawbacks]

Conventionally, fabrics made of synthetic fibers have been widely recognized for their excellent properties, such as strength, wrinkle resistance, and wash-and-wear properties, and have shown rapid growth.

However, in recent years, as comfort clothing,
As various functionalities are attracting attention and their importance is rapidly increasing, fabrics made of conventional synthetic fibers have poor sweat absorption properties when sweating, and also have no moisture absorption properties, resulting in a strong feeling of stuffiness and poor comfort. It was extremely inadequate as clothing.

On the other hand, fabrics made of natural fibers such as cotton,
Because it has moisture absorption performance, it does not feel stuffy, but when the human body absorbs sweat during sweating, it has a low water permeability and feels sticky, which is also insufficient as a comfort garment. Furthermore, fabrics made of natural fibers such as cotton have various drawbacks, such as being weak and having a rough texture after repeated washing, and there has been a strong demand in the industry for the development of comfortable clothing.

In response to such a request, for example, Japanese Patent Application Laid-Open No. 1986-
No. 144150 uses a two-layer knitted fabric with different water retention properties.
JP-A-56-134263 and JP-A-56-144272 disclose ubiquitous water-absorbing woven and knitted fabrics with water repellency on the surface layer and water absorption on the back layer, and JP-A-58-104235 with water-absorbing properties. They have proposed a water-absorbing fiber structure in which hydrophilic fibers imparted with 100% hydrophilic fibers are placed in the center layer of the fiber structure, and hydrophobic synthetic fibers are placed in a relatively surface layer of the fiber structure. However, these methods only consider water absorption performance and ignore moisture absorption performance, and are therefore insufficient in terms of comfort considering the climate inside the clothing.

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 consists of alternating yarns with different water and hygroscopicity. However, with such a fabric, the stickiness and stuffiness caused by sweating cannot be improved, and overall, a comfortable climate inside the clothes cannot be achieved.

[Purpose of the invention]

Against this background, the present invention aims to design comfort clothing that takes into consideration the internal climate of the clothing.Specifically, the present invention aims to design comfort clothing that takes into consideration the internal climate of the clothing. Excellent sex and no feeling of stuffiness.
The purpose of the present invention is to provide a comfortable clothing fabric that is comfortable to wear.

[Structure of the invention]

As a result of intensive studies to achieve this object, we have arrived at the present invention having the following configuration. That is, in the cross-sectional structure of the clothing fabric, one surface layer is made of synthetic fibers that have water-absorbing properties, and the other surface layer is made of synthetic fibers that have moisture-absorbing properties or both moisture-absorbing properties and water-repellent properties. The fabric for clothing is characterized in that the total moisture absorption rate of the fabric at 20°C and 65RH is 5% or more.

[Summary of effects]

By adopting this fabric design, it has strength that could not be obtained with conventional fabrics, and has less hardening of the texture due to repeated washing.
It is possible to obtain a fabric that does not feel stuffy when worn, does not feel sticky when sweating, and has an extremely cool feeling.

[Mechanism of action of the invention]

A means for obtaining such a clothing fabric having the structure of the present invention which is excellent in comfort and has a good feeling of wearing will be explained.

First, the material mainly composed of synthetic fibers with excellent water absorption performance located on one surface layer means synthetic fibers with a hydrophilic compound attached to the surface. These hydrophilic compounds include polyethylene glycol-containing monomers such as polyethylene glycol diacrylate, dimethacrylate, diglycidyl ether, and diisocyanate, or polyester compounds copolymerized with polyethylene glycol, polyamide compounds, and Examples include sulfopolyester resins copolymerized with a compound having a sulfonic acid group such as 5-sodium-sulfoisophthalic acid.

Methods for applying these hydrophilic compounds to the surface of synthetic fibers include methods of applying by dipping and heating, methods of applying by a pad dry method, and methods of applying by a pad steam method.

In addition, the synthetic fibers referred to in the present invention include polyamide,
Refers to all synthetic fibers such as polyester, polyacrylonitrile, polyethylene, and polypropylene.

The form of these synthetic fibers may be any form such as spun yarn, filament yarn, processed yarn, etc. In addition, synthetic fibers having an irregular cross section are more preferable than having a round cross section in terms of imparting water absorption and permeation performance, which is one of the objects of the present invention. In addition, it is more preferable for the fiber surface to have an uneven texture than a smooth one in order to achieve the object of the present invention.

Next, the other surface layer, which is made mainly of synthetic fibers with excellent moisture absorption performance, is made by graft polymerizing hydrophilic vinyl monomers such as acrylic acid or methacrylic acid, and then undergoing substitution treatment with an alkali metal. Alternatively, there are methods in which vinyl pyrrolidone or its derivatives are copolymerized or blend-spun in the manufacturing stage of synthetic fibers, especially in the polymerization stage.Industrially, the former method is based on graft polymerization. has the advantage that it is easy to impart moisture absorption performance. However, if acrylonitrile is forcibly imparted with hygroscopic properties, the physical properties of the fiber will change drastically, the sagging phenomenon will become significant, and the applicability as clothing will decrease, so polyamides and polyesters are preferred as fibers suitable for such polymerization.

Although it is possible to use natural fibers such as cotton as a hygroscopic material, such fibers must be heated at 20°C x 65%
It has a moisture absorption rate of only 7 to 8% at RH, and even if it has a two-layer structure with synthetic fibers having poor moisture absorption, the total moisture absorption rate is too low and the comfort of the present invention cannot be achieved.

Next, the ratio of one surface layer having water absorption performance and the other surface layer having moisture absorption performance or water repellency in addition to moisture absorption performance of the present invention is preferably in the range of 30:70 to 70:30. More preferably, the range is 40:60 to 60:40. In this ratio, if the synthetic fiber group with water absorption performance in one surface layer is less than 30%, it will absorb sweat when sweating, but the water permeation and wicking performance to the outside will decrease, resulting in a sticky feeling and making it extremely sticky when worn. give discomfort. On the other hand, this ratio is 70%
If it exceeds this, it will have excellent sweat absorption and water permeability when sweating, but the moisture-absorbing material will decrease, making it feel stuffy, which will also cause discomfort when worn. Therefore, in order to achieve the object of the present invention, the above-mentioned ratio is essential.

Note that the fabric form of one surface layer may be a plain texture, but from the viewpoint of eliminating the sticky feeling caused by perspiration, a textured texture is more effective in achieving the object of the present invention. This is preferable. In this case, the area ratio of the uneven parts should be 80:20 to 80:20 to balance water absorption and sticky feeling.
A range of 30:70 is preferred.

Note that the synthetic fibers of one surface layer and the other surface layer can be obtained by considering the woven structure or knitted structure as a method for producing the main fabric layer.
For example, in a three-layer double-sided jersey, the yarn appearing on the inner layer and the yarn appearing on the outer layer may be used, or in a jersey with a four-hole punch structure, a yarn satisfying the structure of the present invention may be used in one of the inner layer or outer layer. There are ways to arrange them.

Next, it is essential that the fabric constituting the present invention has a total moisture absorption rate of 5% or more at 20° C. and 65% RH. If the moisture absorption performance is lower than this, it will be difficult to eliminate the feeling of stuffiness, and it will be difficult to achieve the object of the present invention.

That is, in the present invention, synthetic fibers to which a hydrophilic compound has been added are placed on the inner layer (layer on the human body side) of the fabric, and synthetic fibers that have been given high moisture absorption performance through graft polymerization or the like are placed on the outside. The sweat absorption and water permeability of the product are greatly improved, and by adding high moisture absorption performance, it eliminates the feeling of stuffiness and at the same time eliminates the slimy feeling caused by contact with the human body due to sweat absorption due to high moisture absorption, making it extremely comfortable to wear. This makes it possible to obtain a product that is rich in refreshing sensation.

Of course, the present invention is mainly composed of synthetic fibers, but a small amount of natural fibers such as cotton, linen, wool, etc., or semi-synthetic fibers such as rayon may be included within a range that does not impede the effects of the present invention. I have no problem with that either.

Hereinafter, the present invention will be further explained in detail using specific examples.

Example 1, Comparative Examples 1 and 2 A false twisted yarn made of ordinary polyester filament of 150 denier and 48 filaments was mixed with 30 mol% of 5-sodium-sulfoisophthalic acid and 50 mol% of terephthalic acid as dicarboxylic acid components. , a sulfopolyester compound consisting of 10 mol% isophthalic acid and 10 mol% adipic acid, and 80 mol% ethylene glycol and 20 mol% diethylene glycol as glycol components was adjusted to a 1% owf concentration. The fibers were immersed in an aqueous solution, gradually raised in temperature, and heat-treated at 130°C for 30 minutes (polyester fibers with water-absorbing properties).

On the other hand, after graft polymerizing 12.5% of acrylic acid, a tentatively twisted yarn (polyamide fiber imparted with hygroscopicity) consisting of 48 filaments of 150 denier 6-nylon substituted with sodium metal was produced.

A jersey with a 4-hole punch roman structure with two holes each (water-absorbing performance Polyester fibers with moisture absorption properties: polyamide fibers with moisture absorption properties = 50:50) were knitted. The jersey is sewn into a sports shirt,
When tested on actual wear, it was confirmed that the clothing has excellent sweat absorption even when sweating, does not feel sticky, and is extremely comfortable without feeling stuffy.

The moisture absorption rate of this jersey at 20° C. and 65% RH was 10.5% (Example 1).

Next, as a comparison, a polyester fiber with water absorption properties in this example was used alone, the rest was the same as in this example (Comparative Example 1), and a polyamide fiber with moisture absorption properties in this example was used. The fiber alone was used in the same manner as in this example (Comparative Example 2),
I actually tested it, and the former had excellent sweat absorption, but
The feeling of stuffiness was strong, but I didn't feel stuffy afterwards,
When sweating, the product had a strong slimy and sticky feeling, and neither of them could sufficiently achieve the object of the present invention.

Example 2 Polyamide fibers with the moisture absorption properties of Example 1 were treated in an aqueous solution containing 50 g of the fluorine water repellent Asahi Guard AG-710 (manufactured by Asahi Glass Co., Ltd.) at 115°C for 60 minutes to make them water repellent. gave performance.

A jersey with a four-necked punch liner structure was knitted in the same manner as in Example 1, except that the above-mentioned yarn was used in place of the polyamide fiber having moisture absorbing properties.

The moisture absorption rate of this jersey at 20℃65%RH is 10.3
It was %.

When a sports shirt was sewn using the jersey and a wear test was conducted, it was found to have excellent sweat absorption and stuffiness prevention properties, and also had good water repellency in rainy weather.

Claims (1)

[Claims] 1. In the cross-sectional structure of a clothing fabric, one surface layer is mainly made of synthetic fibers that have water-absorbing properties, and the other surface layer is mainly made of synthetic fibers that have moisture-absorbing properties or simultaneously having moisture-absorbing properties and water-repellent properties. ,
A clothing fabric characterized in that the total moisture absorption rate of the fabric at 20°C and 65% RH is 5% or more.