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Special-shaped cross-section fiber aggregate, fiber structure and polymer composite fiber

A technology of fiber aggregates and special-shaped cross-sections, which can be used in fiber processing, fiber chemical characteristics, textiles and papermaking, etc., and can solve the problems of not greatly improving the moisture absorption effect and inhibiting dissolution.

Active Publication Date: 2019-02-22
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] But this invention is blended spinning, and when the formed fiber and fabric are subjected to weight reduction treatment, the stripping property of the fiber surface layer is better, the stripping property of the inner layer is suppressed, and its hygroscopic effect cannot be greatly improved.

Method used

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  • Special-shaped cross-section fiber aggregate, fiber structure and polymer composite fiber

Examples

Experimental program
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Effect test

preparation example Construction

[0041] The preparation method of the polymer composite fiber of the present invention can be listed as follows: 50-90% of the A component of the poorly soluble polymer chip and 10-50% of the B component of the easily soluble polymer chip are melted and composited through the spinneret. Spraying, spinning, and coiling to obtain composite fibers.

[0042] The component A of the poorly soluble polymer chip is a non-eluting polymer, preferably a polyamide polymer or a polyester polymer. Polyester-based polymers include polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, and modified copolymers thereof. Examples of polyamide-based polymers include nylon 6, nylon 66, and modified copolymers thereof.

[0043] The easily soluble polymer chip B component is preferably a soluble copolyester chip, which is mainly formed by copolymerization of terephthalic acid and ethylene glycol, and contains at least the third comonomer isophthalic acid 5-sulfonate ...

Embodiment 1

[0097] 80 wt% polyethylene terephthalate (PET) and 20 wt% soluble polyester chips were pre-crystallized and dried to less than 100 ppm, respectively, and put into each silo, and passed through each screw at a temperature of 250-300°C Melting, the discharge volume is controlled by a separate metering pump, and the primary composite fiber is spun out through the composite spinning assembly whose temperature is controlled by the spinning box at about 290°C, and cooled and solidified under the condition of side blowing wind speed of 40m / min. , and then oil the fibers evenly through the oil nozzle to bundle the fibers and reduce friction. The oil supply rate is 1.0%.

[0098] The fibers that have been oiled and bundled pass through the spinning shaft, are entangled by the pre-interlacer, enter the first hot roller 1HR (temperature is 80°C), and are wound on the first hot roller for 6 turns, and then pass through the second hot roller. The roll 2HR is also wound 6 times on it (tempe...

Embodiment 2

[0104] 80 wt% polyethylene terephthalate (PET) and 20 wt% soluble polyester chips were pre-crystallized, dried to below 100 ppm, and spun as in Example 1 to obtain composite fibers. Use SEM to observe the section of the composite fiber, the number of leaves of the first component polyethylene terephthalate is 12, and calculate the filament factor K 2 =4.3.

[0105] The above-mentioned fibers were made into fabrics, and the fabrics were reduced in NaOH solution with a concentration of 1% and a liquor ratio of 150 for 35 minutes, and the fabric reduction rate was 20%.

[0106] Use SEM to observe the section of the heterosexual fiber, the fiber section is in the shape of 12 leaves, and the filament factor is K 1 =4.3.

[0107] It is measured that the fabric has water absorption and quick-drying performance. The water absorption performance of climbing is tested with the Japanese standard JISL 1907:2010, and the height of the liquid water rises to 85mm; the water absorption is t...

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Abstract

The invention provides a special-shaped cross-section fiber assembly. The cross sections of signal fibers are multi-leaf-shaped. The long filament factor K1 is 1.5 to 8. K is determined by the following general formula: (b) K1 is equal to N1 [2(R1-r1) plus (R1+r1) / Alfa1 plus (Beta-Alfa1) Pi*r1] / 180[D1 / Rho 11000pi)] caret (0.5)2Pi. Alfa 1 is an angle of each special-shaped cross-section blade. Beta 1 is an angle between blades. R1 is the radius of a circumcircle at the outer end part of each blade, and r1 represents the radius of a circumcircle at the inner end part of each blade. N1 is the number of blades. D1 is the fineness of signal fibers, and Rho 1 is the density of the fiber assembly. The multi-leaf-shaped special-shaped cross-section fiber assembly provided by the invention has fine water absorption and quick-drying performance and high elongation and has a bright prospect of clothing.

Description

technical field [0001] The invention relates to a special-shaped section fiber assembly. The present invention also relates to polymer composite fibers that are precursors to shaped fiber assemblies. The present invention also relates to a fibrous structure comprising a fibrous assembly with a special-shaped cross-section. Background technique [0002] In recent years, with the continuous improvement of people's requirements for wearing comfort, the high-tech content of clothing fabrics has become higher and higher, and the fashion and fashion stage has blown the sports and leisure style. People choose sportswear not only to look good, but more importantly, to provide the most thoughtful protection and to sweat freely without any worries. Therefore, higher requirements are placed on the moisture absorption and perspiration performance of clothing fabrics. Natural fiber has good hygroscopicity and is comfortable to wear, but its disadvantage is that when the human body pers...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/253D01F1/10D01D5/30
Inventor 黄儒藤森稔
Owner TORAY FIBER RES INST(CHINA) CO LTD
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