Split type composite fiber and superfine fiber fabric prepared by same

A technology of ultra-fine fiber fabric and composite fiber, which is applied in fiber processing, conjugated synthetic polymer rayon, filament/thread forming, etc. The effect of softening and eliminating fiber formation difficulties

Inactive Publication Date: 2013-12-04
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyolefin or ordinary polyester and polyamide compound segmented fibers have general segmentability and need to rely on strong alkali treatment conditions.

Method used

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  • Split type composite fiber and superfine fiber fabric prepared by same
  • Split type composite fiber and superfine fiber fabric prepared by same
  • Split type composite fiber and superfine fiber fabric prepared by same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Pass the first component polyamide chips and the second component modified copolyester chips with moisture less than 100ppm after drying through the screw extruder, make them melted, flow into the metering pump, press them into the component after accurate metering, and spit out into filaments . Modified copolyester chips and nylon 6 chips are melted at 270°C and 255°C respectively, and are extruded into filaments through a specially designed 36-hole three-split spinneret. The composite ratio of nylon 6 and modified copolyester is 60:40, the take-up speed is 4000m / min, the temperature of the first hot roller is 70°C, the temperature of the second hot roller is 160°C, the first hot roller and the second hot roller The magnification between the hot rollers is 1.5, and the denier of the spun raw yarn is 56.0 dtex. The modified copolyester shows a continuous distribution on the cross section of the raw yarn, and the nylon 6 shows a discontinuous distribution state of three ...

Embodiment 2

[0057] Except that the composite ratio of nylon 6 and modified copolyester was adjusted to 80:20, other conditions were the same as in Example 1. See Table 1 for the results and dyeing results of fabrics made from this fiber after weight reduction.

Embodiment 3

[0059] Except that the composite ratio of nylon 6 and modified copolyester was adjusted to 40:60, other conditions were the same as in Example 1. See Table 1 for the results and dyeing results of fabrics made from this fiber after weight reduction.

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Abstract

The invention discloses a split type composite fiber. The fiber is composed of aliphatic polyamide as a first component and modified copolyester as a second component, wherein the second component is the modified copolyester prepared by copolymerizing aliphatic dibasic alcohol as a third monomer and with a side chain and having the carbon atom number of six or less; the second component is distributed on the cross section of the composite fiber in a continuous phase manner and splits the first component, and the first component is distributed on the cross section of the composite fiber in a discontinuous phase manner. The split type composite fiber containing aliphatic polyamide and modified copolyester is obtained by adopting a composite spinning method, and the composite fiber further forms a fabric; after the fabric is subjected to aqueous alkali decrement treatment, the two components can be fully stripped so as to form a superfine fiber fabric; and the superfine fiber fabric can be dyed under a normal pressure, has water absorption and quick-drying properties, soft hand feeling and higher tear strength, and achieves wide application in the clothing field.

Description

technical field [0001] The invention relates to a segmented composite fiber and a superfine fiber fabric made therefrom, in particular to a polyester-nylon composite fiber and a superfine fiber fabric made therefrom. Background technique [0002] In recent years, with the development of various microfibers, the demand for high-grade woven fabrics and high-grade artificial leather has expanded rapidly. For example, split-type composite fibers composed of polyamide and polyester can be split into two components after physical or chemical treatment, and the split fine denier fibers have small bending stiffness and large bending deflection due to their small diameter. The fiber feels very soft; the specific surface area of ​​fine denier fiber is large, so the coverage, bulkiness and warmth retention of the fabric are significantly improved; the specific surface area of ​​the fiber is large, and the number of times of contact with dust or oil is more, and the oil is removed from ...

Claims

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Application Information

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IPC IPC(8): D01F8/14D01F8/12D01D5/30D01D5/253
Inventor 曹海兵藤森稔
Owner TORAY FIBER RES INST(CHINA) CO LTD
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