JPH0726274B2 - Composite yarn for weaving - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a composite yarn suitable for machine-weaving, and particularly suitable for constructing a fabric for clothing having good tightness and good tenacity.

[Conventional technology]

Generally, for clothing or equipment (hereinafter referred to as special clothing) such as underwear such as swimwear, socks, gloves, sportswear such as skiing and mountaineering, or supporters such as knee pads and elbow pads, From the aspects of wearability, motility, safety, etc., it is required that the wearer has a proper fit and has a tight fit.

Such a fit property is usually achieved by weaving a fabric constituting these special clothes with a stretchable thread material, that is, an elastic thread material. As such an elastic thread material, natural rubber thread, synthetic rubber thread, synthetic elastic fiber, or the like is used. Recently, an operon that is a polyurethane elastic fiber (spandex Spandex) having excellent properties such as elasticity and strength has been recently used. Trade name of Toray DuPont] is preferably used. In order to improve the weaving processability and at the same time impart predetermined characteristics to the processed fabric, these elastic thread materials are usually used as a composite thread in which the outer periphery of these thread materials is coated with other appropriate fibers. It is used.

[Problems to be solved by the invention]

By the way, as the coated fiber in the above-mentioned operon composite yarn, for example, a fiber made of nylon, polyester, polyacrylonitrile, or the like is usually used.
In particular, abrasion resistance and cutting resistance were not sufficiently imparted. That is, the above-mentioned special clothing, especially supporters, various sportswear, socks, etc. are required to have particularly strong strength, but these characteristics have not been sufficiently exhibited by the conventional operon composite yarn. .

Therefore, an object of the present invention is to provide a composite yarn for knitting and weaving, which has good tenacity and tightness and also has tough strength.

[Means for solving problems]

In order to achieve the above-mentioned object, the composite yarn for knitting and weaving according to the present invention uses a pair of aramid fibers around a polyurethane elastic fiber, and these are respectively S-twisted and Z-twisted to form a core yarn, Align these core threads in parallel,
It is characterized in that a pair of aramid fibers are used around it and these are respectively S-twisted and Z-twisted.

In this case, operon can be preferably used as the polyurethane elastic fiber, and Kevlar (trade name of DuPont, Kevlar USA) can be preferably used as the aramid fiber.

[Action]

The composite yarn thus constituted is provided with good extensibility and stress relaxation by the elastic yarn material constituting the core yarn, and at the same time, has excellent abrasion resistance and cut resistance due to the aramid fiber constituting the covering material. Is granted. Therefore, the fabric knitted and woven thereby exhibits good tense strength and strong strength.

〔Example〕

Next, an example of a composite yarn for knitting and weaving according to the present invention will be described in detail below with reference to the accompanying drawings.

The composite yarn 10 shown in FIG. 1 is constructed by placing an elastic fiber operon 12 on a core, S-twisting the periphery with an aramid fiber Kevlar 14, and further Z-twisting the outer periphery with an aramid fiber Kevlar 16.

In this case, the thickness of the operon 12 is preferably set to 15 denier, and the thickness of the Kevlar 14 and 16 is preferably set to cotton number 20/1. It is needless to say that another elastic thread material can be used for the core thread instead of the operon, and the number of these core threads can be set to two or more.

When tension is applied to the composite yarn 10 configured in this way, as shown in FIG. 2, due to the excellent properties of the operon 12, the composite yarn 10 is elongated with a sufficient degree of elongation and excellent stress relaxation. Exert its abilities. On the other hand, this composite yarn 10
Since a pair of Kevlar 14 and 16 are wound around the operon 12 forming the core yarn in a spiral shape in opposite directions to each other and completely covered, the Kevlar's excellent characteristics make it particularly strong and strong. Exhibits excellent wear resistance and cutting resistance. Therefore, the fabric knitted and woven by the composite yarn 10 exhibits not only excellent tightness-fitting property but also tough strength, particularly excellent abrasion resistance and cutting resistance.
That is, the characteristics required for the above-mentioned special clothing, especially various kinds of supporters, sportswear, socks and gloves are sufficiently satisfied. In addition, such a composite yarn has a good mechanical knitting and operability.

FIG. 3 shows a most preferable embodiment of the composite yarn according to the present invention. The composite yarn 20 of this embodiment is obtained by aligning two more of the composite yarns 10 of the above-described embodiment to form a core yarn. That is, the composite yarn 20 is formed by winding a pair of Kevlar 22 and 24 around two composite yarns 10 and 10 in an S twist and a Z twist. In this case, the number of composite yarns 10 forming the core yarn can be set to three or more. Then, such a composite yarn 20 can be appropriately selected according to the use of the special clothing.

〔The invention's effect〕

As described above, the composite yarn for knitting and weaving according to the present invention uses a pair of aramid fibers around the polyurethane-based elastic fiber, and these are S-twisted and Z-twisted to form a core yarn. A plurality of aramid fibers are arranged in parallel, and a pair of aramid fibers are used around them.
By twisting and Z-twisting, the polyurethane elastic fiber forming the core yarn imparts good extensibility and stress relaxation, and the aramid fiber forming the covering material provides excellent wear resistance and resistance. Cutability is given. Then, the fabric knitted by the composite yarn of the present invention having such excellent properties can exhibit good tenacity fitting property and tough strength. Therefore, as a product that can be knitted or woven by the composite yarn of the present invention, special garments such as various supporters, sportswear or socks, gloves, etc. are suitable, and further, the garment characteristics required for these special garments are also provided. Can be fully satisfied. In addition, such a composite yarn has a good mechanical knitting and operability.

Further, when a plurality of such composite yarns are aligned and knitted, a special garment for various uses can be more suitably configured.

[Brief description of drawings]

FIG. 1 is an explanatory view showing one constitutional example of a composite yarn for knitting and weaving, FIG. 2 is an explanatory view showing a stretched state of the composite yarn for knitting and weaving shown in FIG. 1, and FIG. 3 is a composite for weaving according to the present invention. It is an explanatory view showing composition of one suitable example of a thread. 10,20 …… Composite yarn 12 …… Elastic fiber (operon) 14,16,22,24 …… Aramid fiber (Kevlar)

Claims (1)

[Claims] 1. A pair of aramid fibers are used around a polyurethane-based elastic fiber, which are S twisted and Z twisted, respectively.
A knitting or weaving characterized by forming a core yarn by twisting, aligning a plurality of the core yarns in parallel, and using a pair of aramid fibers around the core yarn, and by performing S-twist and Z-twist on them, respectively. For composite yarn.