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Polyamide fibers, fiber structure using same, and clothing

A polyamide fiber and polyamide technology, applied in the direction of single-component polyamide rayon, fiber type, fiber treatment, etc., can solve the problems of insufficient improvement and decline of hygroscopicity/water absorption, and achieve excellent The effect of humidity control effect

Active Publication Date: 2017-04-19
KURARAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods still have the following problems: the hygroscopicity / water absorbency is not sufficiently improved, and the imparted performance decreases after washing

Method used

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  • Polyamide fibers, fiber structure using same, and clothing
  • Polyamide fibers, fiber structure using same, and clothing
  • Polyamide fibers, fiber structure using same, and clothing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] (Preparation of Polyamide Fiber)

[0052] Nylon-6 with a reduced viscosity of 1.80dL / g (concentration in o-chlorophenol: 1g / dL, 30°C) was used as the polyamide component (component A), and thermoplastic modified polyvinyl alcohol (modified PVA) (KURARAY Made by a company, degree of saponification: 98.5, ethylene content: 8.0 mol%, degree of copolymerization: 390) as a soluble component (component B). Component A and component B are melted with separate extruders, set to: Nylon-6: modified PVA = 60: 40 (weight ratio), so that there is figure 1 The composite fibers of the cross-section shown were ejected from the composite spinneret. Next, the filaments ejected through the spinning head were cooled with a side blowing type cooling device having a length of 1.0 m, and then oiled with a spinning finish made of an antistatic agent component and a lubricant component not containing water. Next, the composite fiber of 111dtex / 24f was produced by taking up by a roll at a draw...

Embodiment 2

[0081]As component B, polyethylene terephthalate (copolyPET) was used, which was made of polyethylene glycol with a molecular weight of 2000 in an amount of 8% by weight and 5 Mole % of 5-sodium sulfoisophthalic acid was copolymerized, except that the intrinsic viscosity [η] was 0.52 dL / g. Polyamide fibers were prepared in the same manner as in Example 1, and the degree of orientation and moisture absorption were measured. rate, water absorption elongation, crimp elongation, and the wearing comfort of the fabric was evaluated. The above results are shown in Table 1.

Embodiment 3～4

[0083] As shown in Table 1, except that component A was changed to nylon-6,6 (Example 3), or component A was changed to Nylon-6 / 12 (Example 4), polyamide was prepared in the same manner as in Example 1. For amide fibers, the degree of orientation, moisture absorption, water absorption elongation, and crimp elongation were measured, and the wearing comfort of the fabric was evaluated. The above results are shown in Table 1.

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Abstract

Polyamide fibers having a degree of orientation between 0.7 and 0.85, inclusive. Said polyamide fibers can be suitably obtained, for example, by forming a highly-hygroscopic polyamide component and a specific soluble component into bicomponent fibers and setting specific fiber-formation conditions.

Description

technical field [0001] The present invention relates to polyamide fibers used in clothing such as sportswear, underwear and the like and fibrous structures made of the polyamide fibers. Background technique [0002] So far, synthetic fibers such as polyester fiber, polyamide fiber (nylon-6, nylon-6,6) have excellent physical and chemical properties, so the synthetic fiber is not only used for making clothes, but also widely used It is widely used in various industries and has important industrial value. [0003] However, the actual situation is that because these synthetic fibers have low hygroscopicity and water absorption, when these synthetic fibers are used to make underwear, bottoming shirts (clothes under the coat), bed sheets, towels, etc., require hygroscopicity, When it comes to absorbent clothing, its application is limited. Then, for example, methods for improving hygroscopicity / absorbency have been proposed for polyester fibers, and it can be said that insuffic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/60A41B17/00D01F8/12D01F8/14D03D15/00D06M11/00D06M11/05
CPCA41B17/00D06M11/00D06M11/05D01F8/12D01F8/14D01D5/34D01D5/36D01F8/10D01F6/60D06M2101/24D06M2101/34
Inventor 中塚均河角慎也池田贵志大贺大介村手靖典
Owner KURARAY CO LTD
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