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Processing method and device of friction spinning negative Poisson's ratio yarn of front tension structure

A negative Poisson's ratio and processing device technology, which is applied in the field of processing devices for negative Poisson's ratio yarns, can solve the problems of thick yarns and difficult to obtain high-quality favors, and achieve stable structure, suitable for continuous production and promotion Low cost of application and implementation

Active Publication Date: 2018-05-04
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the yarn produced by this method is relatively thick, so it is regarded as a general low-end product; especially the yarn spun from recycled fibers is difficult to obtain high-quality products in the market.

Method used

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  • Processing method and device of friction spinning negative Poisson's ratio yarn of front tension structure
  • Processing method and device of friction spinning negative Poisson's ratio yarn of front tension structure
  • Processing method and device of friction spinning negative Poisson's ratio yarn of front tension structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The preparation of embodiment 1 concave hexagon-negative Poisson's ratio cotton fiber yarn

[0048] The shape of the surface grooves on the upper and lower templates of the stereotyped template 25 is a concave hexagon, such as image 3 (a) shown.

[0049] Select cotton staple roving 12 whiskers as raw material, cotton staple roving is fed to delivery roller 11, after passing through the draft zone that delivery roller 11 and draft roller 13 form, output from the front nip of draft roller 13; The short fiber roving 12 is fed to the carding roller 23 after preliminary drafting and carding, and enters the shaping template 25 after being carded by the carding roller 23 to form the shape of the auxetic structure and is synchronized under the action of the hot steam containing the sizing agent blown by the blowing pipe 24 Output after sizing; the auxetic spun yarn 26 output by the carding roller 23 and the sizing template 25 is delivered to the surface of the dust cage 31 wi...

Embodiment 2

[0051] The preparation of embodiment 2 double arrow shape-negative Poisson's ratio cotton fiber yarn

[0052] The shape of the surface grooves on the upper and lower templates of the stereotyped template 25 is a double arrow shape, such as image 3 (b) shown.

[0053] Select cotton staple roving 12 whiskers as raw material, cotton staple roving is fed to delivery roller 11, after passing through the draft zone that delivery roller 11 and draft roller 13 form, output from the front nip of draft roller 13; The short fiber roving 12 is fed to the carding roller 23 after preliminary drafting and carding, and enters the shaping template 25 after being carded by the carding roller 23 to form the shape of the auxetic structure and is synchronized under the action of the hot steam containing the sizing agent blown by the blowing pipe 24 Output after sizing; the auxetic spun yarn 26 output by the carding roller 23 and the sizing template 25 is delivered to the surface of the dust cage...

Embodiment 3

[0055] The preparation of embodiment 3 star-negative Poisson's ratio cotton fiber yarn

[0056] The surface groove shape on the sizing template 25 upper and lower templates is star-shaped, as image 3 (c) shown.

[0057] Select spun roving 12 strands as raw materials, feed the spun roving to the conveying roller 11, pass through the drafting zone formed by the conveying roller 11 and the drafting roller 13, and output it from the front jaw of the drafting roller 13; 12 After preliminary drawing and carding, it is fed to the carding roller 23, and after being carded by the carding roller 23, it enters the shaping template 25 to form the shape of the auxetic structure and is synchronously shaped by the hot steam containing the sizing agent blown in by the blowing pipe 24 and then output The auxetic spun yarn 26 output by the carding roller 23 and the sizing template 25 is delivered to the surface of the dust cage 31 with air suction channels and built-in air suction devices on ...

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Abstract

The invention provides a processing method and device of friction spinning negative Poisson's ratio yarn of a front tension structure. The processing device comprises a short fiber yarn feeding and drafting mechanism used for feeding short fiber coarse yarn and drafting and carding the short fiber coarse yarn to make the cohesive force of the fiber increased; a tension structure forming mechanismused for carding the short fiber coarse yarn after being drafted and opened, also utilizing a shaping mechanism template to form the shape of the tension structure and shaping the short fiber coarse yarn under the thermal effect to form the tension structure of the short fiber coarse yarn and a twisting and winding mechanism used for twisting the tension short fiber yarn and winding the tension short fiber yarn on a spool. The method can used for spinning short fiber, recycled, opened or recycled fiber of waste fabric or blended fiber of the recycled, opened or recycled fiber of waste fabric.The processing method and device have the advantages that the formed yarn has an obvious tension effect and is stable in structure, and meanwhile, the raw material is low in uniformity requirement, wide in selection range, convenient to implement, low in cost and applicable to continuous production and application and popularization.

Description

technical field [0001] The invention relates to a processing device for negative Poisson's ratio yarns, a processing method and application using the processing device, especially a spinning method and equipment for preparing negative Poisson's ratio yarns by using a friction spinning system, belonging to textile science and technology field. Background technique [0002] Negative Poisson's ratio yarn is also called auxetic yarn, and its radial radius will increase under the action of axial stretching. Compared with traditional materials, negative Poisson's ratio materials endow them with good fracture toughness and energy absorption (ultrasound, sound, damping) performance with their unique deformation properties, which makes negative Poisson's ratio materials widely used in the automotive industry (seat cushions, seat belts), Aerospace (wing panels, fairings), human protection (knee pads, wrist guards, helmets), biomedicine (artificial blood vessels, sutures) and other fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/34D01H4/16D02J13/00
CPCD01H4/16D02G3/34D02J13/00D02J13/003
Inventor 杜赵群陈俊丽何玲娥马明英仵玉芝龚占江张明月邵青青李涵余卫东
Owner DONGHUA UNIV
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