JPS59168143A - Material for knitted article - 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 The present invention relates to a novel tape-like material made of a composite of an elastic polymer and a fibrous structure, particularly a material for woven and braided material which is a tape-like material having a width of 3 strips or less. 0 Composites made of elastic polymers and fiber structures have been used in various fields of clothing and non-clothing, but we have attempted to develop them in the knitting field by making them into tape-like products. At that time, if the composite consisting of the elastic polymer and the fiber structure does not contain any knitted fabric, even if you try knitting it as a tape-like product with a knitting machine, the strength of the tape will be weak and thread breakage will occur. This occurred frequently and was difficult to organize. In addition, even if the knitted fabric is knitted with great effort, the loop strength is weak, so loop breakage, that is, thread breakage, occurs when worn or washed, which is a problem. In order to eliminate this problem of thread breakage, it is possible to increase the width of the tape-like material, but this reduces the commercial value of the product.

In the present invention, as a result of studying these points, if a tape-like material in which part or all of the fiber structure is made of knitted fabric is used in a composite made of an elastic polymer and a fiber structure, the width of 3 tea, It has been discovered that even the following narrow widths can be knitted using a knitting machine, and yarn breakage does not occur even after repeated wearing and washing.

The strength of the tape-like product of the present invention largely depends on the strength of the knitted fabric that constitutes part or all of the fiber structure of the composite consisting of an elastic polymer and a fiber structure, and the density of the knitted fabric is dense. The stronger the fibers that make up the knitted fabric, the more
The strength of the tape-like material increases. Therefore, if the tape-like material is prone to thread breakage, it is best to make the density of the knitted fabric denser or to use stronger fibers that make up the knitted fabric to produce a composite with an elastic polymer. .

As the elastic polymer referred to in the present invention, polyurethane elastomer and polyacrylic acid ester are preferable.

The fiber structure is made of polyester, polyamide, acrylic,
Synthetic fibers such as polypropylene and cupra rayon,
It is made of synthetic fibers such as rayon, and some or all of it is made up of fine fabrics.

The knitted fabrics constituting part or all of the fiber structure include warp knitting, circular knitting, and woven fabrics, and there are no particular limitations on their structure, density, etc., but preferably warp knitting is half knitted. , sharkskin, squish cord, etc., circular knits such as smooth, jersey, etc., woven materials such as plain weave, patterned weave,
The basis weight of these knitted fabrics, such as satin weave, is ho~/k O
? /m' is a preferred range.

In the present invention, the composite consisting of an elastic polymer and a fiber structure includes a fiber structure coated with an elastic polymer on one or both sides, or laminated with an elastic polymer film, or a fiber structure with an elastic polymer film laminated inside the fiber structure. There are products in which the elastic polymer is impregnated up to the surface of the composite material, and preferably one or both surfaces of the composite material are brushed, resulting in higher product quality.

The method of combining the elastic polymer and the fiber structure is not particularly limited, but for example, a method of impregnating a knitted fabric or a woven fabric with an elastic polymer and coagulating it, a method of coating a knitted fabric with an elastic polymer, or a method of coating a knitted fabric with an elastic polymer, or As shown in Publication No. 1-IO'lJAg, a knitted fabric is used as a base fabric, fibers cut into short lengths are entwined with the base fabric, and the resulting split fiber structure is impregnated with an elastic polymer. There are methods.

Regarding the mixing ratio of each of the composites made of the elastic polymer and the fiber structure, the elastic polymer preferably has a content of S to about 10%, and a composite with a good texture can be obtained.

In other words, if it is less than 5%, the elasticity will be poor, and if it is more than θ%, it will feel rubber-like.

The basis weight of the composite made of elastic polymer and fiber structure is /S
It is preferable that it is O~3θθy/ml, and the thickness is θS
-λ, preferably 0wn5. Both are within the range of high product quality when the composite is made into a tape-like product. When cutting the composite into a tape-like material, the width of the tape-like material must be 9112 or more, preferably ljtl1m or more; if it is less than 10fi01, the strength of the tape-like material is low and it is impossible to knit with a knitting machine. It is.

There are no particular limitations on the method for cutting a composite made of an elastic polymer and a fiber structure into a tape shape, and any method such as cutting in the warp (length) direction, cutting in the weft (width) direction, or cutting in the bias direction may be used.

The tape-like material of the present invention can be knitted into a yokozuna fabric using a flat knitting machine, or an interesting knitted fabric can be produced by cross-knitting it with wool. In addition to flat knitting machines, it can also be used on light knitting machines and used as a red thread insertion yarn or as a weft insertion thread.In addition to these knitted items, it can also be used for braided strings, etc. .

Next, examples will be shown.

Example: A plain woven fabric with a weight of 0 was produced using polyester fibers of 5d/24R41. Next, the thread of polyester fiber θ/d was cut into a 3ws length, and this thread was dispersed in S-water and sprinkled on the plain woven fabric, and then water was sprayed on the plain woven fabric. /d polyester yarns were thoroughly entangled. This fibrous structure was then impregnated with a polyurethane solution and wet coagulated. Further, after drying, both sides were raised to form a composite with an elastic polymer having a basis weight of λJ OS'/m''.

This composite was cut into a tape-like product in the length direction with a width λ■, and a jersey texture was knitted using an S gauge flat knitting machine, and the number of thread breakages at that time was examined. The results are shown in Table 1.

Example /θθd/? Using Otsufil polyester fiber, the half was knitted using a tricot knitting machine. The weight is /! i0f/
m', this fabric is impregnated with a polyurethane solution, wet coagulated, and then raised on both sides to give a basis weight of 200? /rn'
It was made into a complex of. This composite was cut lengthwise into a tape-like product with a width of 2 strips, and a jersey texture was knitted using an S-gauge Yokozuna machine. The number of thread breakages at this time was determined and the results are shown in Table 7.

-6 = Example 3 Using 70d/3 II fil nylon-6 and SOd cupra, a half was knitted using a tricot knitting machine with nylon-6 used in the front. The basis weight is /Uθf/m
' is a blending ratio of 60% nylon and θ% Cuprag.

This fabric was dry-coated with polyurethane to form a composite. Furthermore, the side opposite to the coating side is brushed to increase the weight/
It became 70 f/m'. This composite was cut into a tape-like product in the length direction using a sieve having a width of λ, and a cotton jersey structure was knitted using an S gauge flat knitting machine, and the number of thread breakages was determined. The result is the first
Shown in the table.

Table l */) The number of thread breakages is shown as the number of thread breakages per /771 of the tape-like material.

In a comparative example, when manufacturing a composite by the method of Example/, the fabric included in the fiber structure was manufactured from water-soluble vinylon,
After being impregnated with polyurethane, it is immersed in hot water to dissolve the vinylon and eliminate the woven fabric, resulting in a so-called non-woven composite. What is the profit of this complex? / 90? /
It was m'.

From the yarn breakage results shown in Table 1, it can be seen that the tape-like material of the present invention does not cause yarn breakage and can produce good quality silk fabric.

If the fiber structure does not contain a knitted fabric, the width of the tape cannot be made thinner when knitting using a knitting machine, and the finished knitted fabric (product) cannot be knitted with a coarse gauge knitting machine. It looks rough and has a poor quality feel, making it particularly unsuitable for clothing. Also, when wool is mixed-knitted, the wool is not noticeable and only the tape-like material often stands out, resulting in low product quality.

On the other hand, the tape-like material of the present invention can be made as thin as 3 wIn or less, so a knitting machine with a dense gauge of approximately 3 to 7 can be used, and the finished knitted fabric (product) is smooth and extremely luxurious. When used as clothing, it is possible to create products with a completely new feel, blend well with wool even when knitted with wool, and create a special silk fabric that takes advantage of the texture of wool.

When a tape-like article containing knitted fabric is made into a sweater, for example, it may cause sagging at the elbow due to wear, so-called elbow dropout, and there is little dimensional change in other parts. When worn for a long period of time, tape-like materials that do not come off the elbows are susceptible to dimensional changes in the body as well.

As is clear from the above description, the tape-shaped woven and braided material of the present invention is a useful new material.

Patent applicant: Asahi Kasei Industries, Ltd. Representative patent attorney Toru Hoshino 9-

Claims (1)

[Claims] (1) A material for a woven or knitted material, which is a tape-like or string-like material, all or part of which is a composite of a fibrous structure, which is a knitted fabric, and an elastic polymer.