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Nylon latent-crimp yarn having outstanding elasticity and cool feel

A crimping, nylon technology that is used in filament/thread forming, conjugated synthetic polymer rayon, fiber processing, etc., to solve spinning performance and yarn productivity reduction, yarn bending spinning speed, It is difficult to produce on a commercial scale and other problems, to achieve the effects of high productivity, high moisture regain, and good cooling sensation

Inactive Publication Date: 2015-12-16
KOLON FASHION MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since nylon is spun at a high spinning speed above 3,000m / min, there may be a phenomenon that the yarn bends under the spinning spinneret due to a difference in relative viscosity or the spinning speed may be reduced due to a decrease in spinning speed. Problems with greatly reduced performance and yarn productivity making it difficult to produce on a commercial scale

Method used

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  • Nylon latent-crimp yarn having outstanding elasticity and cool feel
  • Nylon latent-crimp yarn having outstanding elasticity and cool feel
  • Nylon latent-crimp yarn having outstanding elasticity and cool feel

Examples

Experimental program
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Effect test

Embodiment 1

[0042] Obtain 30mol% pyrrolidone and 70mol% caprolactam by carrying out anionic polymerization reaction, and under the spinning temperature of 260 ℃, the nylon 64 random copolymer that melting point is 170 ℃ and relative viscosity (RV) is 2.6 and relative viscosity ( Nylon 6 with an RV) of 2.6 was extruded with an extruder by a side-by-side composite spinning method. After spinning in the spinning pack in a 50:50 weight ratio, it is cooled and solidified in a cooling chamber. Winding was performed at a speed of 3000 m / min by a first guide roll and a second guide roll to prepare a half-drawn yarn of 85-denier / 24 filaments.

[0043] Utilize draw-winding machine, the above-mentioned semi-drawn yarn of winding is stretched with the spinning speed of 500m / min and the drawing ratio of 1.26, and winding 70-denier / 24 long filaments (70-denier / 24filament) specification drawing yarn to prepare nylon latent crimping yarn.

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Abstract

The present invention relates to a nylon latent-crimp yarn having outstanding elastic properties and cool feel, and is characterized in that a nylon 64 random copolymer (A) and one type of polymer (B) selected from nylon 6 and nylon 66 are subjected to conjugate spinning in side-by-side form in yarn cross section. The nylon latent-crimp yarn according to the present invention has outstanding dyeing properties, dye fastness and elasticity, and exhibits high official moisture regain and a good cool feel. Also, the nylon latent-crimp yarn according to the present invention is inexpensive to produce, is highly suited to production, and also has outstanding yarn uniformity. For this reason, the nylon latent-crimp yarn according to the present invention is particularly useful as a fabric material for outdoor wear which is used like an elastic breathable waterproof polyurethane film.

Description

technical field [0001] The present invention relates to a nylon latent crimp yarn (nylon latent-crimpyarn) with excellent elasticity and cool feeling, particularly relates to a kind of (i) nylon 64 random copolymer and (ii) nylon 6 or nylon 66 Nylon latent crimping yarn with excellent elasticity and cool feeling that polymer is spun side-by-side on the cross-section of the yarn, thus providing excellent dyeing performance and color fastness And elasticity, and exhibits a high public moisture regain and a good cool feeling. Background technique [0002] Nylon stretchable yarns are produced using similar techniques to polyester stretchable yarns. However, in terms of the purpose of use, polyester-based stretchable yarns are mainly widely used in T-shirts, jackets, trousers, etc., and have recently been used as composite yarns with other materials. However, nylon stretchable yarn is mainly used for outdoor wear, underwear and socks, so there is a difference in terms of use. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/12D01D5/30
CPCD01F8/12D01D5/22D01D5/32D10B2501/04
Inventor 李东殷卢东铉朴老佑
Owner KOLON FASHION MATERIAL
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