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Sheath-core bicomponent fibre

A composite fiber, skin-core technology, applied in the direction of conjugated synthetic polymer rayon, textile and papermaking, thin material processing, etc., can solve the problems of poor yarn making operability, and achieve the effect of excellent productivity and excellent hygroscopicity

Active Publication Date: 2015-03-25
SEIREN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, in the partially open sheath-core composite fiber of Patent Document 1, since the hygroscopic polymer is exposed on the surface of the fiber, there is a problem that yarn making workability is poor.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Sheath-core bicomponent fibre
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  • Sheath-core bicomponent fibre

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The hard segment is 6-nylon and the soft segment is a polyether block amide copolymer (PEBAX MH1657 manufactured by Arkema Co., Ltd.) of polyethylene glycol for the core, and the relative viscosity in 95.7% sulfuric acid solution is 2.43 for the skin. 6-Nylon (1010J manufactured by DSM Co., Ltd.), a sheath-core composite fiber obtained by melt spinning in a shape in which the core / sheath area ratio is 1 / 1 and the core is not exposed. The fineness is set to 78dtex, and the number of threads is set to 24. The breaking strength was 2.29cN / dtex, and the breaking elongation was 50.5%.

Embodiment 2

[0048]The hard segment is 6-nylon and the soft segment is a polyether block amide copolymer (PEBAX MH1657 manufactured by Arkema Co., Ltd.) of polyethylene glycol for the core, and the relative viscosity in 95.7% sulfuric acid solution is 2.43 for the skin. 6-Nylon (1010J manufactured by DSM Co., Ltd.), a sheath-core composite fiber having a shape in which the core / sheath area ratio is 1 / 2 and the core is not exposed was obtained by melt spinning. The fineness is set to 78dtex, and the number of threads is set to 24. The breaking strength was 3.04cN / dtex, and the breaking elongation was 51.5%.

Embodiment 3

[0050] The hard segment is 6-nylon and the soft segment is a polyether block amide copolymer (PEBAX MH1657 manufactured by Arkema Co., Ltd.) of polyethylene glycol for the core, and the relative viscosity in 95.7% sulfuric acid solution is 2.43 for the skin. 6-Nylon (1010J manufactured by DSM Co., Ltd.), a sheath-core composite fiber having a shape in which the core / sheath area ratio is 1 / 3 and the core is not exposed was obtained by melt spinning. The fineness is set to 78dtex, and the number of threads is set to 24. The breaking strength was 3.44cN / dtex, and the breaking elongation was 53.5%.

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Abstract

Bicomponent fibres are obtained having superior hygroscopicity, anti-static properties, and tactile coolness, while having few problems in post processing, even after cross-knitting with polyurethane or polyethylene terephthalate. Each sheath-core bicomponent fibre comprises a core part and a sheath part and is shaped so that the core part is not exposed to the surface of the fibre. The core part comprises a polyether block amide copolymer (see general formula (1)) of which the hard segment indicated in general formula (1) is nylon 6, and the sheath part is a nylon 6 resin. The area ratio of the core part and the sheath part in a cross-section of the fibre is 3 / 1-1 / 5. [In the formula, PA indicates a polyamide unit (hard segment), PE indicates a polyether unit (soft segment), and n indicates a repeating unit.]

Description

technical field [0001] The present invention relates to a sheath-core composite fiber suitable for clothing, which has excellent hygroscopicity, antistatic properties (anti-static properties) and contact cold sensitivity. Background technique [0002] Polyamide fibers and polyester fibers are widely used for clothing because of their high strength and excellent dyeability and processability. In particular, polyamide fibers have a soft texture and are excellent in hygroscopicity among synthetic fibers, and are often used for underwear. However, compared with natural fibers such as cotton, polyamide fiber cannot be said to have sufficient hygroscopicity. In addition, there are problems such as airtightness and stickiness, and it is easy to be charged, and there is a problem that it is easy to cause discomfort due to static electricity. . [0003] Against such a background, synthetic fibers having excellent moisture absorption and desorption for preventing air-tightness and s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/12
CPCD01F8/12D10B2331/02Y10T428/2929
Inventor 森江健吾伊黑敏裕
Owner SEIREN CO LTD
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