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Variable-density three-dimensional fabric and weaving method thereof

A three-dimensional fabric and variable density technology, which is applied in fabrics, textiles, papermaking, textiles, etc., can solve problems such as single structure, inability to realize continuous weaving, and single density change form

Pending Publication Date: 2021-04-30
NANJING FIBERGLASS RES & DESIGN INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a variable-density three-dimensional fabric and its its weaving method

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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  • Variable-density three-dimensional fabric and weaving method thereof
  • Variable-density three-dimensional fabric and weaving method thereof
  • Variable-density three-dimensional fabric and weaving method thereof

Examples

Experimental program
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Embodiment 1

[0044] refer tofigure 1 , this embodiment provides a three-dimensional fabric with variable density along the thickness direction. This embodiment realizes the density change of the fabric along the three regions of the thickness direction through the change of the structure and the change of the weft yarn density. The structure of the first density zone 11 is a hollow interlayer , the tissue structure of the second density zone 13 is shallow cross-curved joints, the tissue structure of the third density zone 15 is an orthogonal three-way, and the interface connection 12 between the first density zone and the second density zone is connected by a shallow cross-curved structure , the interface connection 14 between the second density area and the third density area is connected by a shallow cross-bending structure, and the yarns are continuous.

[0045] In this embodiment, the variable-density three-dimensional fabric is woven with 500tex glass fiber.

[0046] The process param...

Embodiment 2

[0062] refer to Figure 11 , this embodiment provides a three-dimensional fabric with variable density along the thickness direction and the width direction at the same time, through the structure change, warp density change, yarn fineness change, and yarn type change, the fabric can be realized in three regions along the thickness direction and along the width. The density changes in the three regions in the thickness direction, the tissue structure of the first density zone 21 in the thickness direction is an orthogonal three-dimensional structure, the tissue structure of the second density zone 23 in the thickness direction is shallow cross-curved joints, and the tissue structure of the third density zone 25 in the thickness direction It is a shallow intersection and direct connection, the interface connection 22 between the first density region and the second density region in the thickness direction is connected by a shallow cross-bend structure, and the interface connecti...

Embodiment 3

[0080] refer to Figure 16 , this embodiment provides a three-dimensional fabric with variable density along the thickness direction and along the length direction at the same time, through the change of the structure, the change of the weft yarn density, and the change of the number of yarn strands, the fabric can be realized in two regions along the thickness direction and along the length direction. Density changes in the two areas, the tissue structure of the first density zone 31 in the thickness direction is an orthogonal three-dimensional structure, the tissue structure of the second density zone 33 in the thickness direction is a shallow cross-bending joint, and the interface between the first density zone and the second density zone The joint 32 is connected by a shallow cross-bending structure. The first density zone in the length direction uses a yarn share ratio of 1:1, and the second density zone in the length direction uses a yarn share ratio of 1:2. Different str...

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 a variable-density three-dimensional fabric and a weaving method thereof. The density of the three-dimensional fabric changes in one of the thickness direction, the width direction and the length direction or changes in two or more of the thickness direction, the width direction and the length direction at the same time; the variable-density three-dimensional fabric is connected through a layer connection structure; interface layers of different density areas are connected with each other, and yarns are continuous; and the whole body is formed by continuous weaving. The variable-density three-dimensional fabric has the advantages of being diversified in weave structure, large in fabric size control range, high in designability, compact in structure, good in integrity, simple in weaving process, suitable for continuous weaving and the like; and a variable-density material compositely reinforced by the fabric has the advantages of low thermal expansion coefficient, high heat resistance, high specific strength, high specific modulus, impact resistance, wear resistance, aging resistance and the like, and can be widely applied to the fields of automobiles, aviation, spaceflight, mechanical manufacturing, petroleum and the like.

Description

technical field [0001] The invention relates to the technical field of three-dimensional fabric weaving, in particular to a three-dimensional fabric with three variable densities and a weaving method thereof. Background technique [0002] Variable density material is a new type of composite material in which two or more materials are combined and the composition and structure change continuously. Its mechanical properties and functions change continuously along a certain direction. It is a new type of functional material developed to satisfy repeated normal work in extreme environments. The variable density material has low thermal expansion coefficient, high heat resistance, has the surface properties of enhanced material structure, and has the advantages of high specific strength, high specific modulus, impact resistance, wear resistance and anti-aging in terms of dynamic structure, and is very popular among people. Favored, it can be widely used in automotive, aerospace,...

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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IPC IPC(8): D03D25/00
CPCD03D25/005
Inventor 王群朱梦蝶李小欢刘延友胡方田
Owner NANJING FIBERGLASS RES & DESIGN INST CO LTD
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