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A light-weight sea-island composite fiber

A composite fiber and island-in-the-sea technology, applied in fiber processing, conjugated synthetic polymer artificial filament, filament/thread forming, etc., can solve problems such as poor compatibility, fiber surface cracking, and interface peeling

Active Publication Date: 2016-03-09
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the poor compatibility of polypropylene and polyester, problems such as interfacial peeling and fiber surface cracking may occur in the post-processing of fibers and the production and use of fabrics.

Method used

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  • A light-weight sea-island composite fiber
  • A light-weight sea-island composite fiber
  • A light-weight sea-island composite fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Polyester (PET) is used as the sea component, conventional polypropylene (PP) is the island component, and the sea-island weight ratio is 30 / 70. It is spun on a spinning machine equipped with a distribution-type sea-island composite spinneret, and melt-spun , After false-twisting processing, a lightweight sea-island composite fiber with a denier of 84detx and a single fiber count of 48 was obtained. After measurement, the density of the obtained fiber is 1.04g / cm 3 , the distance between the outer surface of the outermost island and the fiber surface is 0.40 μm, and the number of islands in a single fiber is 178. The cross-sectional shape of the island is circular.

[0058] After the fiber is made into a fabric, it is dyed with a disperse dye, and its L * 18, excellent dyeability; the light fastness of the fabric reaches above grade 4. The fiber is pulled out from the fabric, and its peeling degree is tested as a grade 4. The tea towel made of this fiber was evaluat...

Embodiment 2

[0060] Polyester (PET) is used as the sea component, conventional polypropylene (PP) is the island component, and the sea-island weight ratio is 15 / 85. It is spun on a spinning machine equipped with a distribution-type sea-island composite spinneret, and melt-spun , After false-twisting processing, a lightweight sea-island composite fiber with a denier of 84detx and a single fiber count of 48 was obtained. After measurement, the density of the obtained fiber is 0.98g / cm 3 , the distance between the outer surface of the outermost island and the fiber surface is 0.15 μm, and the number of islands in a single fiber is 178. The cross-sectional shape of the island is circular.

[0061] After the fiber is made into a fabric, it is dyed with a disperse dye, and its L * 20, excellent dyeability; the light fastness of the fabric reaches level 4. The fiber is pulled out from the fabric, and the degree of peeling is tested as 3 grades. The tea towel made of this fiber was evaluated f...

Embodiment 3

[0063] Polyester (PET) is used as the sea component, conventional polypropylene (PP) is the island component, and the sea-island weight ratio is 40 / 60. It is spun on a spinning machine equipped with a distribution-type sea-island composite spinneret, and melt-spun , After false-twisting processing, a lightweight sea-island composite fiber with a denier of 84detx and a single fiber number of 72 was obtained. After measurement, the density of the obtained fiber is 1.17g / cm 3 , the distance between the outer surface of the outermost island and the fiber surface is 0.50 μm, and the number of islands in a single fiber is 178. The cross-sectional shape of the island is circular.

[0064] After the fiber is made into a fabric, it is dyed with a disperse dye, and its L * It is 16, excellent dyeability; the light fastness of the fabric reaches above grade 4. The fiber is pulled out from the fabric, and its peeling degree is tested as a grade 4. The tea towel made of this fiber was ...

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Abstract

The invention discloses a light-weight sea-island composite fiber, wherein the sea component is polyester, and the island component is polypropylene or modified polypropylene; 10-10,000 islands are arranged on the cross section of a single fiber, wherein the distance between the island at the outermost side and the surface of the fiber is 0.1-3.0um; the density of the sea-island composite fiber is 0.95-1.20g / cm<3>. The sea-island composite fiber not only remains the light weight property of the polyamide but also has excellent spinning property and processing property, and meanwhile, a textile formed by the fiber has excellent dyeing property and heat resistance.

Description

technical field [0001] The invention relates to a light-weight sea-island composite fiber. Background technique [0002] Since entering the 21st century, due to the development of textile products gradually becoming thinner, the density is 1.0g / cm 3 Lightweight fibers on the left and right also follow. Lightweight fiber has superior performance, high added value and diversified functions, and has attracted extensive attention from the world's chemical fiber industry. [0003] There are many means to realize fiber weight reduction. Patent CN200920039325.5 discloses a hollow fiber, which achieves the purpose of weight reduction through the middle gap. However, the mesopore ratio of this kind of hollow fiber is small and difficult to control, and there will be problems such as insufficient light weight and uneven fiber surface. At the same time, after the hollow fiber is processed by false twisting and elastic processing, the hollow deformation will become smaller, and even ...

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 Patents(China)
IPC IPC(8): D01F8/14D01F8/06D01D5/30
Inventor 曹健倪春健施泽顺望月克彦
Owner TORAY IND INC