Preparation method and application of anisotropic elastic auxetic fabric

An anisotropic fabric technology, which is applied in the preparation of anisotropic elastic auxetic fabrics and in the field of 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: 2018-10-23
DONGHUA UNIV
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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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  • Preparation method and application of anisotropic elastic auxetic fabric
  • Preparation method and application of anisotropic elastic auxetic fabric
  • Preparation method and application of anisotropic elastic auxetic fabric

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preparation example Construction

[0034] In order to achieve the above object, the preparation method of a kind of anisotropic elastic auxetic fabric provided by the present invention comprises 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. Modeling with 3D modeling software to construct corresponding 3D models of the two materials;

[0037] Step 3. Import the built 3D model into the software to assemble and make slices, and then import the slices into the 3D printer;

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

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

[0040] Patterns of auxetic structures include concave honeyc...

Embodiment 5

[0052] Embodiment 5) Triangular sofa release.

[0053] Carry out corresponding parameter setting to the component parts involved in 5 embodiments, comprise (1) model parameter design, according to the quality of final product, thickness size requirement, design the size of model; (2) the selection of fiber, according to product quality and Performance requirements, choose two fibers with different elastic properties; (3) selection of 3D printing parameters, select the corresponding 3D printing technology and corresponding printing parameters according to the product use and raw materials; (4) post-processing design, according to the product use, Design fabric post-treatment process. The setting parameters of this embodiment are shown in Table 1.

[0054] Table 1

[0055]

[0056]

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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, belonging 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; while when compressed, the material shrinks laterally. Some materials with special structures discovered in recent years have negative Poisson's ratio effects, and have attracted much attention from material scientists and physicists due to their peculiar properties. [0003] Auxetic fabric in a narrow sense refers to a fabric that stretches along the warp direction (or weft direction) and expands in the weft direction (or warp direction). Auxetic fabric in a broad sense means that the fabric expands in the direction of non-stretch force. At present, the main research focuses on knitted fabrics and three-dimensional fabrics, among which space...

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