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Negative poisson's ratio two-dimensional warp knitting fabric and weaving method thereof

A technology of negative Poisson's ratio and warp-knitted fabrics, which is applied in warp-knitting, textiles, papermaking, knitting, etc., can solve the problems of strong theory and weak realization ability, and achieve strong realization, simple manufacturing method and remarkable effect Effect

Active Publication Date: 2015-09-16
JIANGNAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a two-dimensional warp fabric with a simple weaving process, easy realization and good negative Poisson’s ratio effect in view of the negative Poisson’s ratio fabrics in the prior art, which are theoretically strong and relatively weak in realization ability. Braid

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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  • Negative poisson's ratio two-dimensional warp knitting fabric and weaving method thereof
  • Negative poisson's ratio two-dimensional warp knitting fabric and weaving method thereof

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments here are only for the purpose of illustration and do not impose any limitation on the present invention.

[0023] figure 1 and figure 2 It shows the deformation principle of the negative Poisson's ratio effect of the two-dimensional negative Poisson's ratio warp knitted fabric of the present invention and the weaving method of the hexagonal mesh structure.

[0024] In a specific embodiment, the weaving method of the two-dimensional negative Poisson's ratio warp knitted fabric of the present invention comprises the following steps:

[0025] Step 1: Select the warp knitting machine model;

[0026] The warp knitting machine used needs to have at least three comb bars, and has a multi-speed warp let-off mechanism.

[0027] Step 2: select yarn raw material;

[0028] The hexagonal mes...

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 belongs to the field of textiles, and relates to a negative poisson's ratio two-dimensional warp knitting fabric and a weaving method thereof, wherein the negative poisson's ratio two-dimensional warp knitting fabric comprises two parts which are a ground structure part and a deformation part. The method for weaving the negative poisson's ratio two-dimensional warp knitting fabric comprises that warp knitted tulle net fabrics are used as based fabrics, and the based fabrics loss balance to left and right tilt by adding an action of front weaving which produces a force to the based fabrics on the plane direction, thereof forming a warp knit structure with negative poisson's ratio effect, and obtaining negative poisson's ratio two-dimensional warp knitting fabrics. The weaving method is low in cost and simple in operation. The negative poisson's ratio two-dimensional warp knitting fabric is obvious in negative poisson's ratio effect, simple in weaving method and wide in actual application scope of two-dimensional fabrics, and further can be expanded to the field of three dimensional fabrics.

Description

technical field [0001] The invention belongs to the field of textiles, and relates to a two-dimensional warp-knitted fabric with negative Poisson's ratio performance and a weaving method thereof. Background technique [0002] In daily life, almost all the materials we see are positive Poisson's ratio materials, such as rubber and cloth. When these materials are stretched, their dimension perpendicular to the direction of stretching will narrow; in contrast, negative Poisson's ratio materials will widen their dimension perpendicular to the direction of stretching when they are stretched. Negative Poisson's ratio materials are relatively rare, but they have many properties superior to those of positive Poisson's ratio materials, such as isotropic bending (when materials in the same plane are stressed, the vertical direction bends in the same direction). However, the material in the same plane as the positive Poisson's ratio material bends in the opposite direction when it is ...

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): D04B21/12
Inventor 马丕波缪旭红蒋高明常玉萍
Owner JIANGNAN UNIV
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