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A kind of preparation method and use of anisotropic elastic auxetic fabric

An anisotropic fabric technology, applied in the preparation of anisotropic elastic auxetic fabrics and textile materials, can solve the problems of low production efficiency, cumbersome production, and difficult to meet, and achieve low cost, simple process, and simple production process easy-to-use effects

Active Publication Date: 2020-08-11
DONGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The two-dimensional negative Poisson structure textile materials reported above all use weaving and knitting structure design methods, which have good plane auxetic effect, but the production is cumbersome and the production efficiency is low.
Three-dimensional negative Poisson's ratio fabrics require specially improved knitting equipment, which is expensive and difficult to meet the large demand in the market

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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  • A kind of preparation method and use of anisotropic elastic auxetic fabric
  • A kind of preparation method and use of anisotropic elastic auxetic fabric
  • A kind of preparation method and use of anisotropic elastic auxetic fabric

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preparation example Construction

[0034] In order to achieve the above objective, the method for preparing an anisotropic elastic auxetic fabric provided by the present invention includes the following steps:

[0035] Step 1. According to different requirements and uses, design the material, shape and size of the fabric so that the fabric has an auxetic structure;

[0036] Step 2. Use 3D modeling software to model and construct the corresponding 3D models of the two materials;

[0037] Step 3. Import the built 3D model into the software for assembly and slice, and then import the slice into the 3D printer;

[0038] Step 4. Select 3D printer materials according to the design purpose, and ensure that the elasticity of horizontal materials is greater than that of vertical materials;

[0039] Step 5. According to different design purposes, post-processing the fabric printed by the 3D printing technology to obtain an auxetic structural material.

[0040] The pattern of the auxetic structure includes concave honeycomb, star ne...

Embodiment 5

[0052] Example 5) Triangular sand release.

[0053] The corresponding parameter settings for the constituent parts involved in the five embodiments include (1) model parameter design, according to the quality and thickness of the final product, and the size of the design model; (2) fiber selection, according to product quality and For performance requirements, select two fibers with different elastic properties; (3) Selection of 3D printing parameters, select the corresponding 3D printing technology and corresponding printing parameters according to product usage and raw materials; (4) Post-processing design, according to product usage, Design fabric post-processing technology. The setting parameters of this embodiment are shown in Table 1.

[0054] Table 1

[0055]

[0056]

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 relates to a preparation method and application of anisotropic elastic auxetic fabric. The preparation method adopts three-dimensional modeling software to model and introduce the modelinto a 3D printer which can print out bi-component materials, and the 3D printer prints an auxetic fabric which is softer and more elastic in the lateral direction than the longitudinal material. Theprepared anisotropic elastic auxetic fabric can be used as clothing, backpacks, masks, artificial blood vessels, filter materials and the like. The preparation method has the characteristics of convenient processing, integrated molding and good material cohesiveness, and extensive available raw materials.

Description

Technical field [0001] The invention relates to a preparation method and application of an anisotropic elastic auxetic fabric and belongs to the field of textile materials and technology. Background technique [0002] The negative Poisson's ratio effect means that when stretched, the material expands laterally within the elastic range; when compressed, the material contracts laterally instead. Some materials with special structures discovered in recent years have a negative Poisson's ratio effect. Because of their peculiar properties, materials scientists and physicists have paid much attention. [0003] The narrowly defined auxetic fabric refers to a fabric stretched along the warp direction (or weft direction) and expanded in the weft direction (or warp direction). In a broad sense, auxetic fabric refers to the expansion of the fabric in the direction of non-stretching force. At present, the main research focuses on knitted fabrics and three-dimensional fabrics, among which spa...

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 Patents(China)
IPC IPC(8): B29C64/10B33Y10/00
CPCB29C64/10B29L2031/726B33Y10/00
Inventor 杜赵群顾龙鑫何玲娥
Owner DONGHUA UNIV
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