KR20040104293A - A double covered core yarn - Google Patents

Abstract

PURPOSE: Lycra soft grey yarn double-covered with nylon high-speed false twist yarn is capable of preventing warp occurred after process and maintaining elasticity. Socks knitted out of the grey yarn have high elasticity, soft restoring property, compression and wear sensations. CONSTITUTION: Lycra soft grey yarn double-covered is obtained by preparing polyurethane type lycra soft grey yarn(10) having 520denier and double-covering the lycra soft grey yarn with nylon high-speed false twist yarn(20)(30). The nylon high-speed false twist yarn is capable of being substituted with one selected from the group containing filament yarn, polyamide yarn, polyester yarn and polypropylene yarn.

Description

Double covered lycra soft yarn {A double covered core yarn}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to yarn for socks, and in particular, to a polyurethane-based Lycra Soft 520 denier yarn for preventing warpage and maintaining elasticity after processing.

In general, the yarn used for socks has produced some products using a special yarn steeping device which is a non-slip device for polyurethane yarn without any processing because of its high elasticity.

When socks are produced in this way, the unique characteristics of Lycra soft yarns (520 denier), that is, the characteristics that have stronger resilience and stretch force than ordinary yarns, appear in the socks.

However, even if the socks processed with lycra soft yarn (520 denier), it is sometimes necessary to limit the elongation rate in socks for sports purposes, but it is impossible to limit the elongation rate in conventional lycra soft yarn (520 denier) socks.

In addition, due to the structure and characteristics of the rubber yarn feeding device of the general hosiery machine, the lycra soft yarn cannot be intended to knit due to the sliding phenomenon of the yarn.

SUMMARY OF THE INVENTION The present invention has been made in an effort to provide a yarn double-covered with nylon to a polyurethane-based Lycra Soft yarn in order to prevent distortion and maintain elasticity after processing.

1 illustrates a double covered Lycra Soft 520 denier yarn according to the present invention.

<Description of Symbols for Main Parts of Drawings>

10 .... Lycra Soft Yarn 20,30 .... Nylon 70D / 24F / 1 High Speed Combustible Yarn

In order to solve the above technical problem, the double-covered lycra soft yarn according to the present invention is a polyurethane-based lycra soft 520 denier yarn for preventing warpage and maintaining elasticity after processing, wherein the lycra soft 520 denier yarn is double-covered with nylon high-speed twisted yarn It is characterized by.

In addition, the nylon high-speed twisted yarn is characterized in that the nylon 70D / 24F / 1 high-speed twisted yarn.

In addition, the nylon high-speed twisted yarn is characterized in that it is used is replaced by any one of filament yarn, polyamide yarn, polyester yarn, polypropylene yarn.

In addition, the double covering is characterized in that the primary and secondary covering in S-yeon.

In addition, the double covering is characterized in that the primary covering in S-yeon, secondary covering in the Z-yeon.

In addition, the double covering is characterized in that the primary covering with Z-yeon, secondary covering with S-yeon.

In addition, the double covering is characterized in that the primary and secondary covering with Z edge.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 illustrates an embodiment of a yarn double covered with nylon according to the present invention, consisting of a yarn 10 and nylon high-speed twisted yarn (20, 30).

Yarn 10 is a raw material of the fabric in the present invention using a polyurethane (Poly-Urethane) Lycra Soft yarn (core yarn), the Lycra Soft yarn (10) is 520 It is a denier yarn.

Nylon high-speed twisted yarn (20, 30) is a good elasticity at room temperature and excellent shrinkage by heat processing, the present invention uses nylon 70D / 24F / 1 high-speed twisted yarn.

1 is a Lycra Soft 520 denier yarn (10) is a nylon 70D / 24F / 1 high-speed twisted yarn (20, 30) double or S- or Z-yeon in order to maintain the elasticity and warping after processing Indicates a covered state.

The double covering is firstly covered with S lead, secondly covered with Z lead or firstly covered with Z lead, and secondly covered with S lead.

In addition, the double covering may cover both primary and secondary with S-lead or both primary and secondary with Z-lead.

In the present invention, the filament yarn or filament yarn, polyamide yarn, polyester yarn, polypropylene yarn may be used instead of the nylon high-speed twisted yarn, or long fiber synthetic yarn may be used.

Polyurethane-based Lycra Soft 520 denier yarn is used as the nylon 70D / 24F / 1 high-speed twisted yarn (20, 30) for the purpose of preventing warping and stretching after processing. By double-covering by grafting both twists of S- and Z-lead simultaneously for the purpose of preventing warping, the resilience of the Lycra Soft yarn (520 Denier) according to the present invention is utilized to the maximum level while utilizing the restoring force to the maximum. Keep it.

Lycra Soft yarn 520, which is a core yarn, by winding the nylon 70D / 24F / 1 high-speed twisted yarn (20,30) with a first S (842.8 TPM) and a second Z (1960.8 TPM). Denier) shows lower elongation (tensile elongation: 440.9%, permanent elongation: 7.2%, recovery rate: 98.2%) than itself.

The use of Lycra Soft yarn (520 Denier) according to the present invention to maintain the strength to fit the body type by body part is a roller for double-covered yarn (Double-covered Yarn) is generally settled on the socks knitting (Roller) and stepping motor (Stepping Motor) by the speed of the yarn by knitting to fit the body shape.

It is ideal for double-covered Lycra Soft yarns (520 Denier) according to the present invention through elongation heat processing (about 40-50 minutes at 90-100 ° C) in related products including socks. Secondary heat shrinkage of nylon 70D / 24F / 1 high-speed twisted yarn through heat processing in the product knitted state using double covered Lycra Soft yarn (520 Denier) according to the present invention, giving a high level of elasticity This further strengthens the product's pressure by limiting the yarn elongation even more strongly in two stages.

In addition, since the yarn surface of nylon 70D / 24F / 1 high-speed twisted yarn of Lycra Soft yarn (520 Denier), which is double-covered through heat processing, becomes smooth through heat shrinkage, a feeling of wearing the product using the yarn according to the present invention It softens the skin, makes it comfortable to wear, and the overall stability of the product. This makes the tissue more elastic than the compression bandage, but it can give high elasticity with soft restoring function.

In the knitting method, the yarn according to the present invention is not used only for a specific part, but is used for the whole sock except for the heel and the toe part, and the maintenance of strength to fit the body type for each part of the body is generally used for a sock knitting machine. Knitting using the double-covered yarn according to the present invention to fit the body by the speed control of the yarn by the double-covered yarn roller and the stepping motor, which are mounted on the body, or for other purposes, the body By using a highly elastic multi-stage compression knitting method that fits the body, especially in the case of socks, by pressing the blood that can stay in the foot upwards, it promotes blood flow and protects the ankle and decreases sweating function. In addition, the effect of the durability of the whole organization can be seen.

As described above, the present invention has been described with reference to the embodiments illustrated in the drawings, which are merely exemplary, and it should be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. will be. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

According to the present invention, the lycra soft yarn double-covered by nylon high-speed twisted yarn prevents warping after processing and can maintain high elasticity. Therefore, the socks knitted by the yarn have a high elasticity and soft recovery function than the compression bandage. Not only does it give high elasticity and pressure, but also softens the fit and wears comfort.

Claims (7)

Polyurethane-based lycra soft 520 denier yarn to prevent warping and elasticity after processing, The Lycra Soft 520 Denier Yarn Double covered lycra soft yarn, characterized by being double covered with nylon high-speed twisted yarn. The method of claim 1, wherein the nylon high-speed twisted yarn Double covered lycra soft yarn, characterized by nylon 70D / 24F / 1 high-speed twisted yarn. The method of claim 2, wherein the nylon high-speed twisted yarn A double covered lycra soft yarn, characterized in that it is used in place of any one of filament yarn, polyamide yarn, polyester yarn, and polypropylene yarn. The method of claim 1, wherein the double covering Double-covered lycra soft yarns featuring primary and secondary coverings with S lead. The method of claim 1, wherein the double covering Double-covered lycra soft yarn, characterized by primary covering with S-lead and secondary covering with Z-lead. The method of claim 1, wherein the double covering Double-covered lycra soft yarn, characterized by primary covering with Z-lead and secondary covering with S-lead. The method of claim 1, wherein the double covering Double-covered lycra soft yarns featuring primary and secondary coverings with Z edges.