Integral sandwiched porous fabric

A technology of porous fabrics and cores, applied in fabrics, textiles, textiles and papermaking, etc., can solve the problems of difficult continuous composite molding, limited mechanical properties, high manufacturing costs, etc., achieve broad market application prospects, avoid delamination problems, The effect of improving the overall strength

Inactive Publication Date: 2010-09-29
SINOMA SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problems to be solved by the present invention are the disadvantages of easy delamination, poor mechanical properties, and difficult processing of ordinary sandwich materials, and the second is that the hollow layer is connected with the fabric surface layer by fibers, resulting in high manufacturing costs, low output, and poor mechanical properties. Limitation, difficulty in continuous composite molding

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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  • Integral sandwiched porous fabric
  • Integral sandwiched porous fabric
  • Integral sandwiched porous fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] See attached figure 1 , this embodiment includes an upper layer 10 formed by interweaving the first upper layer warp yarn 1, the second upper layer warp yarn 2 and the upper layer weft yarn 3, and the first lower layer warp yarn 4, the second lower layer warp yarn 5 and the lower layer weft yarn 6 The lower layer 11 formed by interweaving, the upper layer and the lower layer are both one layer. After the first suede warp 7 and the second suede warp 8 are first interwoven with the lower layer weft yarn 6, they interweave successively with a plurality of sandwich weft yarns 9 distributed in a wave shape to the upper right, and interweave with the sandwich weft yarn 9 positioned at the top of the wave Finally, interweave with the weft yarn 6 of the upper layer, then turn around and interweave with the weft yarn 9 of the sandwich layer in turn to the lower right, and then interweave with the weft yarn 6 of the lower layer after arriving at the wave valley, and cycle accordi...

Embodiment 2

[0018] see figure 2 , the upper and lower layers of this embodiment are also the same as those of Embodiment 1. The difference is that the weft yarns of the sandwich layer are divided into two groups, namely the weft yarns of the sandwich layer 9 and the weft yarns of the sandwich layer 9', which are distributed in an "X" shape. Correspondingly, the first suede warp and the second suede warp are also divided into two groups. The first pile warp 7 and the second pile warp 8 of the first group first interweave with the lower layer weft yarn 6, then interweave with the first group of sandwich layer weft yarn 9 to the upper right, and finally interweave with the upper layer weft yarn 3. Second group of the first suede warp 7' and the second suede warp 8' first interweave with the upper layer weft yarn 3, then interweave with the second group of sandwich layer weft yarn 9' successively to the lower right, and finally interweave with the lower layer weft yarn 6. Finally, a two-di...

Embodiment 3

[0020] The lower layer and sandwich layer of this embodiment are the same as those of Embodiment 1, the difference is that there are two groups of weft yarns 3 on the upper layer, and the two groups of weft yarns 3 are arranged in parallel from top to bottom. The warp yarn 1 of the first upper layer and the warp yarn 2 of the second upper layer are interwoven with two sets of weft yarns 3 of the upper layer at the same time, thereby forming a thickened upper layer composed of two layers. The thicker the thickness.

[0021] In addition to the solution shown in this embodiment, the thickness of the lower layer can also be increased by increasing the number of groups of weft yarns in the lower layer.

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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Abstract

The invention discloses an integral sandwiched porous fabric, which comprises an upper surface (10) and a lower surface (11), wherein the upper surface (10) is interweaved by first upper body warps (1), second upper body warps (2) and upper surface wefts (3); the lower surface (11) is interweaved by first lower body warps (4), second lower body warps (5) and lower surface wefts (6); the layer number of both the upper and lower surface is at least one; and first pile warps (7), second pile warps (8) and sandwich wefts (9) are interweaved to form a sandwiched layer and interweaved with the upper surface wefts (3) and the lower surface wefts (6). The integral sandwiched porous fabric has strong designability and is suitable for weaving in scale. Compared with a common sandwiched fabric, the integral sandwiched porous fabric has the advantages that: the weft fiber volume content is obviously increased, and the weft strength and modulus of the fabric can be effectively improved; passages of the sandwiched layer are clearer so as to be favorable for performing functional development of embedding, filling and the like; and nondestructive inspection, later repair and maintenance are more convenient. The integral sandwiched porous fabric can be widely applied in the fields of rail transits, reinforcing marbles, double-layer storage tanks and the like.

Description

technical field [0001] The invention relates to an integral sandwich porous fabric, which belongs to the technical field of special woven fabric structure. technical background [0002] At present, the core materials widely used in the industrial field are mainly rigid foam, honeycomb and balsa wood. However, the traditional sandwich composite material is usually formed by bonding two composite material reinforced panels and a core material with a lower density. The interface bonding strength between the panel and the core material is low, and the interlayer performance is poor. After being impacted, such as falling tools, gravel, hail, impact, etc., the panels and core materials will be delaminated, which will cause a comprehensive decline in mechanical properties and easily lead to structural damage; in addition, in hot and humid environments, water immersion will occur. , causing panel foaming and other phenomena, which makes inspection and maintenance more frequent, thu...

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): D03D13/00D03D15/00D03D15/242D03D15/267D03D15/275D03D15/283D03D15/40D03D15/47
Inventor 张艳红匡宁郑云邹清
Owner SINOMA SCI & TECH
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