Device and method for preparing auxetic composite yarn with stable structure based on thermal fuse bonding

A technology of stable structure and thermal fusible filament, applied in the direction of yarn, spinning machine, drafting equipment, etc., can solve the problems of strong limitation of spinning method, unstable yarn structure, unsuitable for continuous production, etc., to improve structural stability The effect of stability and performance stability, simple spinning method and unique performance

Inactive Publication Date: 2019-03-29
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the spinning device and method of the existing auxetic composite yarn are still immature, and there are problems such as unstable yarn structure (the slipping of the yarn component causes the overall structure to be loose), strong limitations of the spinning method, and unsuitability for continuous production. Simple spinning device and method to spin yarn with uniform and stable structure and auxetic effect to promote its wide application in various fields

Method used

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  • Device and method for preparing auxetic composite yarn with stable structure based on thermal fuse bonding
  • Device and method for preparing auxetic composite yarn with stable structure based on thermal fuse bonding
  • Device and method for preparing auxetic composite yarn with stable structure based on thermal fuse bonding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1 Preparation of spandex / thermal fuse (low melting point polyester) / nylon auxetic composite yarn

[0038] Such as figure 1 with figure 2 As shown, a device for preparing a stable structure auxetic composite yarn based on thermal fuse bonding, a multi-position yarn guide 4, can twist the rigid filament 2 and at least two thermal fuse 3 into untwisted, and The parallel of the elastic filament 1 and the rigid filament 2 and the thermal fuse 3 is fed to the yarn feeding and control mechanism of the converging twisting mechanism through the multi-position yarn guide 4 described above, and the elastic filament 1 and Convergent twisting mechanism for the parallel twisting of rigid filament 2 and thermal fuse 3 together.

[0039] The yarn feeding and control mechanism includes a tension plate 13 arranged on the yarn guide rod 12, a yarn guide roller 14, a holding roller pair 21, and a speed regulating roller 22. The elastic filament 1 passes through the tension plate 13 and...

Embodiment 2

[0045] Example 2 Preparation of spandex / thermal fuse (low melting point polyester) / ultra-high molecular weight polyethylene auxetic composite yarn

[0046] A method for preparing a stable structure auxetic composite yarn based on thermal fuse bonding, using the device for preparing a stable structure auxetic composite yarn based on thermal fuse bonding described in Example 1, respectively selecting spandex monofilament and ultra-high molecular weight Polyethylene is used as elastic filament 1 and rigid filament 2, and low-melting polyester is used as thermal fuse 3. The ultra-high molecular weight polyethylene and two low-melting polyester fibers are twist-free. The rest of the operation steps are the same as in Embodiment 1, and the description will not be repeated here. The oven treatment time is 45 minutes, and the temperature is set to 120°C. The specific process parameters are shown in Table 1.

[0047] In order to verify the innovative contribution of the present invention...

Embodiment 3

[0048] Example 3 Preparation of spandex / thermal fuse (low melting point nylon) / high-strength polyester yarn

[0049] A method for preparing a stable structure auxetic composite yarn based on thermal fuse bonding uses the device for preparing a stable structure auxetic composite yarn based on thermal fuse bonding described in Example 1, respectively selecting spandex monofilament and high-strength polyester filament As the elastic filament 1 and the rigid filament 2, low-melting nylon is used as the thermal fuse 3. The high-strength polyester yarn and two low-melting nylon yarns are twist-free. The rest of the operation steps are the same as in Embodiment 1, and the description will not be repeated here. The oven treatment time is 30 minutes, and the temperature is set to 110°C. The specific process parameters are shown in Table 1.

[0050] In order to verify the innovative contribution of the present invention, according to the ISO 3343-2010 international standard method, the cu...

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Abstract

The invention discloses a device and method for preparing a stable-structure pull-expanded compound yarn based on thermofuse yarn adhesion. The device for preparing the stable-structure pull-expanded compound yarn based on the thermofuse yarn adhesion comprises a multi-position yarn guide for performing the zero-twist doubling on a rigid filament yarn and at least two thermofuse yarns, and feeding an elastic filament yarn and a doubled yarn of the rigid filament yarn and the thermofuse yarns into a yarn feeding and controlling mechanism of a gathering twisting mechanism by the multi-position yarn guide, and the gathering twisting mechanism for performing the co-twisting on the elastic filament yarn and the doubled yarn of the rigid filament yarn and the thermofuse yarns. The spinning device is simple and easy in operation, convenient to implement, low in cost and suitable for continuous production, popularization and application. The obtained pull-expanded compound yarn has the stable structure and the unique performance, and can be used for human motion protective fabrics.

Description

Technical field [0001] The invention belongs to the technical field of spinning, and relates to a device and a method for preparing a stable structure auxetic composite yarn based on thermal fuse bonding. Background technique [0002] An auxetic material refers to a material with a negative Poisson's ratio, that is, when it is stretched (or compressed) in a certain direction relative to traditional materials, it will shrink (or expand) and deform perpendicular to the direction of the force. When stretched (or compressed) in a certain direction, it will expand (or contract) and deform perpendicular to the direction of the force. The auxetic yarn is also called negative Poise ratio yarn. Under a certain axial tension, the radial profile of the yarn increases. Research has found that, in addition to negative Poisson's ratio, auxetic materials also have other unique properties compared with traditional materials, such as shear stiffness, fracture toughness, indentation resistance, e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D02G3/04D02G3/32D01H1/18D01H5/22D02J13/00
CPCD01H1/18D01H5/22D02G3/04D02G3/324D02G3/328D02J13/00D10B2501/04
Inventor 杜赵群刘赛何玲娥
Owner DONGHUA UNIV
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