Easy-to-sew multilayer composite woven body and application thereof

A multi-layer composite and braided technology, which is applied in the direction of multi-strand fabrics, textiles, fabrics, etc., can solve the problems of braid damage, braids are difficult to achieve rapid high strength, etc., to prevent separation, increase seamability, and scope of application wide effect

Active Publication Date: 2022-07-01
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a kind of multi-layer composite braid and its application that are easy to sew, and overcome the multi-layer braid that exists in the prior art that is prone to interlayer separation and easy stitching process. The problem of causing braid damage, especially solving the problem that thicker braids are difficult to achieve fast and high-strength sutures

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Easy-to-sew multilayer composite woven body and application thereof
  • Easy-to-sew multilayer composite woven body and application thereof
  • Easy-to-sew multilayer composite woven body and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] An easily sutured high-temperature-resistant heat-insulating braided body, comprising: upper-layer stitching warp yarns 11 and upper-layer stitching weft yarns 12 interlaced in sequence from top to bottom; high-temperature-resistant interlaced warp yarns 21 and high-temperature-resistant weft yarns 22; lower-layer stitching warp yarns 31 and lower layer stitching yarns Weft 32.

[0055] Wherein, the upper stitched warp yarns 11 and the upper stitched weft yarns 12 are interwoven to form the upper stitched layer 1 , the high temperature resistant interlaced warp yarns 21 and the high temperature resistant weft yarns 22 are interwoven to form the middle layer functional layer 2 , and the lower stitched warp yarns 31 and the lower layer stitched weft yarns 32 are interwoven to form the lower stitched layer 3 . The middle functional layer 2 is a middle heat insulating layer, which is used to prepare a heat insulating and protective braid.

[0056] In the upper stitched lay...

Embodiment 2

[0061] The difference between Example 2 and Example 1 is:

[0062] There are 2-10 layers of high temperature resistant weft yarns 22 (such as figure 2 shown);

[0063] The surface warp density of the upper seam layer 1 and the lower seam layer 3 is 6 pieces / cm, the surface weft density is 4 pieces / cm, the surface warp density of the middle functional layer 2 is 6 pieces / cm, and the surface weft density is 4 pieces / cm. . The upper stitched warp yarn 11, the upper stitched weft yarn 12, the high-temperature-resistant interlocking warp yarn 21, the high-temperature resistant weft yarn 22, the lower-layer stitched warp yarn 31, the lower-layer stitched weft yarn 32 and the high-strength stitching thread 4 are all made of glass fiber, and the high-temperature resistant interlocking warp yarn 21 and the high-temperature resistant weft yarn 22 The fineness of the upper stitching warp yarn 11, the upper stitching weft yarn 12, the lower stitching warp yarn 31, the lower stitching w...

Embodiment 3

[0066] Example 3 is basically the same as Example 2, except that:

[0067] The upper stitched warp yarns 11, the upper stitched weft yarns 12, the high-temperature-resistant interlaced warp yarns 21, the high-temperature resistant weft yarns 22, the lower-layer stitched warp yarns 31, the lower-layer stitched weft yarns 32 and the high-strength sutures 4 are all made of quartz fibers. The fineness of the high temperature resistant interlaced warp yarn 21 and the high temperature resistant weft yarn 22 is 390tex, and the fineness of the upper stitched warp 11, the upper stitched weft 12, the lower stitched warp 31, the lower stitched weft 32, and the high-strength suture 4 is 780tex.

[0068] The thermal insulation fabric of this embodiment is suitable for use in an environment of 800°C to 1000°C.

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Abstract

The invention provides a multi-layer composite woven body easy to sew and application of the multi-layer composite woven body. The multi-layer composite woven body comprises a plurality of sewing units. Each sewing unit comprises a middle functional layer, an upper sewing layer and a lower sewing layer, wherein the upper sewing layer and the lower sewing layer are arranged on the upper side and the lower side of the middle functional layer respectively. The outer surface of the upper sewing layer and the outer surface of the lower sewing layer are each of a sewing coil structure, and every two adjacent sewing units enable every two adjacent sewing coils to be hooked and sewn through a sewing line, so that multi-layer composite connection is achieved. The ring-shaped structures are ingeniously constructed on the two sides of the middle functional layer through weaving, then the sewing lines are used for hooking and sewing, operability is high, sewing strength is high, the functional layers do not need to be penetrated, and the problems that in the prior art, interlayer separation is likely to happen to a multi-layer woven body, and the woven body is likely to be damaged in the sewing process are solved; particularly, the problem that rapid and high-strength sewing of a thick woven body is difficult to achieve is solved.

Description

technical field [0001] The invention relates to the technical field of functional composite fabrics, in particular to an easy-to-sew multi-layer composite braid and its application. Background technique [0002] High-performance fiber fabric is one of the textile composite materials that has attracted much attention in recent years. It is widely used in aerospace due to its advantages of good temperature resistance, high strength, high modulus, good impact resistance, and strong designability. , military, automotive, construction and other fields. At present, the new aerospace vehicles represented by the variable configuration rudder surface of hypersonic aircraft, the flexible thermal protection layer on the leeward surface of aerospace vehicle, and the flexible thermal protection system of variable configuration spacecraft are all suitable for flexible thermal insulation and thermal protection integrated thermal protection materials and structures. An urgent need for appl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D03D11/00D03D27/00D03D15/50D03D15/267D03D15/242D03D15/25D03D15/283B32B9/00B32B9/04B32B17/02B32B17/12B32B5/08B32B5/06
CPCD03D11/00D03D27/00D03D15/50D03D15/267D03D15/242D03D15/25D03D15/283D03D15/247B32B5/02B32B5/06B32B5/26B32B5/08B32B2250/20B32B2262/101B32B2262/10B32B2307/304B32B2307/306
Inventor 李文斌李久刚刘洋何加浩刘可帅金鑫鹏徐卫林
Owner WUHAN TEXTILE UNIV
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