JPS616351A - Offset water absorbable 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 (a) Field of Industrial Application The present invention relates to a unevenly distributed water-absorbing fabric that, when used for clothing, reduces wetting of the skin during sweating.

(B) Conventional Technology Cotton yarn, a hydrophilic fiber, has long been used in underwear, sportswear, etc., with the intention of eliminating discomfort such as stickiness caused by wetness during sweating.

A fabric using rayon thread or the like, a fabric using a blended yarn of cotton fiber and synthetic fiber, or a fabric with a cotton lining structure using cotton yarn and synthetic fiber yarn, etc., are used. However, these conventional underwear and sportswear cannot sufficiently absorb and evaporate the sweat generated during hot and humid summers or during exercise, resulting in the skin still feeling wet and sticky, and the fabric becoming sticky. It has not yet fully resolved discomfort such as morning sickness, and in addition, in cold temperatures, absorbed sweat often cools and causes colds and muscle disorders, especially when wearing sportswear. This poses various problems, including the possibility that it may impede the movement of people.

(C) Problems to be Solved by the Invention The present invention solves the above-mentioned problem of insufficient evaporation of sweat during sweating in the fabrics used for conventional underwear and sportswear, and thereby prevents stickiness. feeling.

It is an object of the present invention to provide a fabric that can be used to form underwear, sportswear, etc. that can be comfortably worn without causing discomfort such as clinging.

(D) Means for Solving the Problems The present invention is a fabric having a laminated structure of two layers, one side of which is made of polyester fibers and the other side of which is made of polyamide fibers. This unevenly distributed water-absorbing fabric is characterized by being water-absorbing treated on only one side.

First, the unevenly distributed water-absorbent fabric of the present invention has a two-layer structure in which one layer is made of polyester fibers and the other layer is made of polyamide fibers, and also has one of the side fibers between the two layers. Also included are fabrics with a multilayer structure in which at least one intermediate layer is formed of fibers of the same kind or fibers of different kinds. Combinations include polyester fibers-boryamide fibers, polyester fibers-cotton-polyamide fibers, polyester fibers-wool-polyamide fibers, polyester fibers-polyester fibers/cotton-boryamide fibers, and polyester fibers. .

-Cotton/rayon-polyamide fibers, etc., and other suitable combinations can be selected as required. The polyester fibers forming one side of the fabric include polyethylene terephthalate fibers and isophthalic acid 5
Roseoxybenzoic acid.

There are copolymerized polyethylene terephthalate fibers containing sulfoisophthalic acid or butylene glycol as a copolymerization component, and other polyamide fibers forming one-sided layer include nylon 4 fibers, nylon 6 fibers, nylon 66 fibers, nylon 610 fibers, Examples include nylon 11 fiber. Each of these fibers is used in the form of a multifilament yarn or a spun yarn. As for the fabric, either warp knitting, weft knitting, or other knitted fabrics or woven fabrics may be selected as needed, and the conventional method is used to form a single layer of polyester fibers and polyamide fibers, respectively. !
, by the method of NiMori etc.! [Even when weaving and forming an intermediate layer, methods such as lay-in, plating, and tucking may be used. Alternatively, individual knitted fabrics of polyester fibers and polyamide fibers may be laminated with a knitted fabric serving as an intermediate layer sandwiched therebetween, if necessary, and bonded using steel, glue, adhesive, etc. .

Next, in the present invention, forming each single-sided layer of the fabric,
The fiber layer of either polyester fiber or polyamide fiber, which are basically hydrophobic fibers, is imparted with water absorption properties by water absorption processing. Underwear depends on which fiber layer has water absorbency.

Depending on the texture, dyeing, etc. desired in a specific application such as sportswear, it is determined which fiber layer is used as the front side, and the one-sided layer used as the front side is given water absorbency, and the back side, that is, the desk side. remains hydrophobic. Furthermore, in a specific application, if there is no particular designation as to which fiber layer should be the front side, any of the fiber layers imparted with water absorption properties will be used as the front side.

As a water-absorbing agent, when imparting water-absorbing properties to polyester fibers, a polycondensate of polyethylene glycol and terephthalic acid, which has almost no affinity for polyamide-based fibers, is used; When applying it, it is desirable to use a polycondensate of polyethylene glycol and polyamide, which has almost no affinity for polyester fibers. By selecting such water absorption processing chemicals,
By immersing a fabric in an aqueous solution of these chemicals, only the desired fiber layer is imparted with water absorbency. That is, for example, when it is desired to impart water absorbency to a single-sided layer made of polyester fibers, the former polycondensate of polyethylene glycol and terephthalic acid is used as the water absorption processing agent, and the fabric is immersed in an aqueous solution of the processing agent. Conversely, when imparting water absorbency to a single-sided layer made of polyamide fibers, the fabric may be treated by immersing it in an aqueous solution of the latter polycondensate of polyethylene glycol and polyamide. In any case, the treatment with these aqueous solutions of water-absorbing chemicals is carried out at a concentration of 2.
It is desirable to carry out the process under the conditions of ~20% O, W, F, temperature of 80° C. or more, and 10 minutes or more. Treatment concentration is 2% o,
w, f. If it is less than 20% o,tm, sufficient water absorption performance and durability cannot be provided.

f. Even if it is made higher, the treatment effect is almost in equilibrium, and the feel of the fabric tends to deteriorate, which is not preferable. Furthermore, if the treatment temperature is lower than 80° C. or the treatment time is shorter than 10 minutes, it is difficult to provide sufficient water absorption performance and durability, which is not preferable.

The water absorption treatment may be carried out either after normal scouring or after dyeing, and the processing equipment may be a normal Winx dyeing machine, a jet dyeing machine, a beam dyeing machine, etc. A dyeing machine, a jigger dyeing machine, etc. may be appropriately selected and used.

(E) Effect The present invention has a laminated structure of at least two layers, one layer of which is made of polyester fibers, the other layer of which is made of polyamide fibers, and one of the layers is imparted with water absorbency. The unevenly distributed water-absorbent fabric is used as underwear, with one side that has been given water absorption properties as the front side, and the other side that remains hydrophobic as the back side, that is, the desk side.

If used in specific applications such as sportswear, when sweating when worn, the sweat adhering to the fiber surface will not be absorbed into the inside of the fiber because the fiber layer on the desk side is hydrophobic, and the sweat will be absorbed into the fiber layer on the front side. Due to its high water absorption, it is quickly sucked up to the front side and evaporated from the front surface, so there is no discomfort such as sweat running down the desk side, getting wet and sticky, or clinging to the desk side.

(F) Examples Example 1゜ 70d/24f nylon 6 false twisted yarn is used as the front yarn that forms the front side of the fabric, and 50d/24f polyethylene terephthalate false twisted yarn is used as the back yarn that forms the back side of the fabric. A smooth knitted fabric with a double structure is knitted using a 24-gauge knitting machine, and after scouring by a conventional method, Rotex A25, which is a water absorption processing agent for polyamide fibers, is applied.
(manufactured by BASF) in a 7% O, W, F aqueous solution,
Treat at 100'C for 40 minutes, then wash with water, and heat at 100'C.
The fabric was dried at 160° C. and finished for 60 seconds to obtain knitted fabric A, which is the unevenly distributed water-absorbent fabric of the present invention.

As a comparative example, the surface yarn forming the front side of the fabric was 70
Using a d/24f nylon 6 pre-combusted thread and a 50d/12f nylon 6 pre-combusted thread as the back thread forming the back surface, a double weave was formed using a 24 gauge &i machine in the same manner as in the example. A smooth knitted fabric was knitted, and subjected to water absorption treatment under exactly the same conditions as in the example.

A finishing set was performed to obtain knitted fabric B.

The water absorption performance of both knitted fabrics and the feeling of wearing them when worn as a shirt and performing extreme exercise accompanied by sweating were compared. The results are shown in Table 1.

Notes to Table 1 1) Water absorption performance: JIS L-1093 byresoku method 2) Wearing feeling: Determined by sensory test 1) Wetness due to sweat on the desk side 20... Almost no.

△: Slightly wet. ×...very wet ii) clinging: ○...almost none, Δ...slightly clinging <, ×... clinging As shown in Table 1, knitted fabric A, which is the fabric of the present invention, has the following properties: The water absorption performance of the front side is good, and the water absorption performance of the back side is very low. Therefore, the sweat adhering to the fibers on the back side is quickly transferred to the front side, and as a result, the desk side does not get sticky due to wetness due to sweat. There was almost no clinging, and it was extremely comfortable to wear. On the other hand, the knitted fabric B of the comparative example has the same water absorption performance on the front side and the back side, both showing high values, so that sweat adhering to the back side is absorbed inside the fibers and there is less migration to the front side. Sticky to the skin,
The clothes clung to each other and were uncomfortable to wear.

Example 2 A polyethylene terephthalate false twisted yarn of 150 d/48 f was used as the front yarn forming the front side of the fabric, and a nylon 6 false twisted yarn of 70 d/24 f was used as the back yarn forming the back side of the fabric. Gauge I! 1tll! After knitting a smooth knitted fabric with a double structure in a and scouring it by a conventional method, 10% O1w, f of Permalose Tl'l (manufactured by IC1), which is an absorption processing agent for polyester fibers, was prepared.
, treated in an aqueous solution at 120°C for 20 minutes, then washed with water, dried at 100°C, and subjected to finishing centrifugation at 170°C for 30 seconds to produce knitted fabric C, which is the unevenly distributed water-absorbing fabric of the present invention.
I got it. Water absorption performance of this knitted fabric C (JIS l, -109
6-byresok method), the front side is 186f1. The back side is 1
It was 5 cranes.

When I wore training pants made with this knitted fabric C and went for an intense run that caused sweating, the sweat quickly transferred from the back side to the front side, so there was almost no stickiness or clinging due to wetness due to lmo. It was comfortable to wear.

(g) Effects of the Invention The unevenly distributed water-absorbing fabric of the present invention has a layer on one side that is highly absorbent and a layer on the other side that is hydrophobic. If you make it into sportswear, it can be used during hot and humid summers or when you sweat a lot during exercise.
When sweat adheres to the hydrophobic fibers on the back side, it is absorbed almost simultaneously by the water-absorbing fibers on the front side and transferred to the front side, where it evaporates and evaporates, without being absorbed into the fibers, which quickly removes sweat from the skin. Therefore, the humidity inside the clothes increases, preventing sweat from running down, getting wet, or clinging to the skin, and providing a comfortable wearing feeling.

In addition, since the fabric of the present invention has one layer made of polyester fibers and the other layer made of polyamide fibers, when imparting water absorbency to either one layer, it is necessary to have an affinity for only the desired fibers. By simply selecting a certain water-absorbing processing agent and treating it by immersing it in an aqueous solution of the processing agent, it is possible to easily impart water-absorbing properties to only one desired fiber. Obtainable.

Claims (1)

[Claims] (1) A fabric with a laminated structure of at least two layers, one side of which is made of polyester fibers and the other side of which is made of polyamide fibers, and is characterized by being water-absorbing treated on only one side. unevenly distributed water-absorbing fabric.