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A multi-component asymmetric fiber

An asymmetric, multi-component technology, applied in fiber processing, filament/thread forming, textile and paper making, which can solve problems such as not easy to split

Active Publication Date: 2021-01-05
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-component asymmetric fiber to solve the problem that the existing multi-component fiber has a symmetrical structure and is not easy to split

Method used

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  • A multi-component asymmetric fiber
  • A multi-component asymmetric fiber
  • A multi-component asymmetric fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1As shown, the multi-component asymmetric fiber of this example is a solid fiber with a circular cross section and a diameter of 1 μm, composed of polypropylene (A) and polyethylene (B); polypropylene (A) and polyethylene ( B) Divide the cross-section of the fiber into 16 successively adjacent independent fan-shaped regions, among which, the component polypropylene (A) occupies 8 fan-shaped regions; the component polyethylene (B) occupies 8 fan-shaped regions, and the 16 regions will be The cross-section of the multi-component asymmetric fiber is divided into asymmetric figures, so that the regions of multiple components form a mechanical asymmetric structure, so that the multi-component asymmetric fiber can be split into 16 secondary fibers spontaneously.

Embodiment 2

[0034] Such as figure 2 As shown, the multi-component asymmetric fiber of this embodiment is a solid fiber with a circular cross section and a diameter of 5 μm, made of polypropylene (A), polyethylene (B) and polyethylene terephthalate ( C) Composition; polypropylene (A), polyethylene (B) and polyethylene terephthalate (C) divide the cross-section of the fiber into 6 successively adjacent independent regions, and the dividing line between adjacent regions is Curve; Among them, the component polypropylene (A) occupies 2 regions, the component polyethylene (B) occupies 2 regions, and the component polyethylene terephthalate (C) occupies 2 regions; 6 regions The cross-section of the multi-component asymmetric fiber is divided into asymmetric figures, so that the regions of multiple components form a mechanically asymmetric structure, so that the multi-component asymmetric fiber can be spontaneously split into 6 secondary fibers.

Embodiment 3

[0036] Such as image 3 As shown, the multi-component asymmetric fiber of this example is a solid fiber with a circular cross section and a diameter of 1 μm, composed of polypropylene (A) and polyethylene (B); polypropylene (A) and polyethylene ( B) Divide the cross-section of the fiber into 8 successively adjacent independent regions, and the boundary line between adjacent regions is a curve; among them, the component polypropylene (A) occupies 4 regions, and the component polyethylene (B) occupies 4 regions Area; 8 areas divide the cross-section of the multi-component asymmetric fiber into asymmetric graphics, so that the multiple components form a mechanically asymmetric structure, so that the multi-component asymmetric fiber can be spontaneously split into 8 secondary fiber.

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Abstract

The invention discloses a multi-component asymmetric fiber. The multi-component asymmetric fiber comprises a plurality of components, wherein the heat shrinkage rates of the plurality of components are different; the cross section of the multi-component asymmetric fiber is round or oval; the plurality of components are used for separating the cross section of the fiber into a plurality of independent regions which are adjacent in sequence; a dividing line of the adjacent regions is a straight line or a curved line; a plurality of regions formed by the plurality of components are used for dividing the cross section of the fiber into asymmetric patterns; the regions composed of the plurality of components are of mechanical asymmetric structures, so that the multi-component asymmetric fiber is easily spontaneously split into a plurality of secondary fibers. In a fiber spinning, stretching or heat treatment process, the heat shrinkage rates of all the components are different and the tension is different, so that the multi-component asymmetric fiber can be induced and be initiatively split into the plurality of secondary fibers.

Description

technical field [0001] The invention relates to the technical field of composite fibers, in particular to a multi-component asymmetric fiber. Background technique [0002] Fibers are natural or synthetic filamentous substances. In modern life, fibers are used everywhere, including textiles, construction, military, biology, etc. With the development of society, single-component fibers have single performance and limited applicable conditions, which can no longer meet the needs of contemporary life and production. . In order to meet the application requirements of multi-functional fibers, two-component and multi-component composite fiber technology has become one of the important development directions of fiber characterization. Products with different properties can be produced through different melt compounding forms, which greatly expands the spinning capacity. room for technological development. In many composite spinning technologies, the main fiber composed of multipl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/06D01F8/14D01F8/16D01F8/08D01D5/30
CPCD01D5/30D01F8/06D01F8/08D01F8/14D01F8/16
Inventor 宁新石川郑杰慎张飞綦宝良王栋
Owner QINGDAO UNIV