Forming method and application of high-shape-memory, high-flexibility and negative-Poisson-ratio fabric

A technology of negative Poisson's ratio and forming method, which is applied in pattern design devices, textiles, papermaking, textiles, etc., can solve the problems of fixed wrinkle direction, small wrinkle cycle, and permanent effect, so as to improve structural stability, Increased diversity, promising effects

Pending Publication Date: 2022-01-07
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Analyzing the research on origami fabrics at home and abroad in recent years, the forming method is mainly high-temperature pressing. Issey Miyake has rich experience in using high-temperature pressing to prepare folded or three-dimensional clothing. Formability is good, but the cost is too high, such as woven fabric and its manufacturing method (patent publication number CN111448345A)
However, the one-time weaving method has limitations. It can only form a simple fold repeating structure, the fold direction is fixed and the fold cycle is small, and it is impossible to form a large-scale fold. A woven fabric with a pleated effect (Chinese patent, invention patent announcement number CN207727235), can only form wrinkles in the warp direction, or the folding effect is simple and cannot form a large cycle, and the three-dimensional shrinkage in the fabric is achieved by the finishing process Non-yarn and fabric weaving methods form rich folds, such as a three-dimensional jacquard fabric weaving process awarded to Jinjiang Yuanda Garment Weaving Co., Ltd. (Chinese patent, invention patent publication number CN102534932 A)
The above-mentioned fabrics with folding effect are mainly prepared by high-temperature pressing and hand-sewing. High-temperature pressing requires the fabric to have a certain degree of ductility, and the effect after high-temperature pressing is not permanent; although hand-sewing has rich shapes, it is expensive

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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  • Forming method and application of high-shape-memory, high-flexibility and negative-Poisson-ratio fabric
  • Forming method and application of high-shape-memory, high-flexibility and negative-Poisson-ratio fabric
  • Forming method and application of high-shape-memory, high-flexibility and negative-Poisson-ratio fabric

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Experimental program
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Effect test

Embodiment 1

[0047] The non-elastic pure polyester is used as the warp yarn, the cotton-spandex blended yarn is used as the elastic weft yarn, and the shape-memory yarn is used as the core yarn in the elastic yarn. The shape-memory yarn has shape-memory function. At the same time, pure cotton yarn is used as non-elastic weft yarn, and weft double weaving is adopted. Elastic yarn in non-folding area uses four pieces of warp surface to make twill, non-elastic yarn uses eight pieces of three-flying weft surface twill, and elastic yarn in raised area For the whole warp weave point, the non-elastic yarn uses four pieces of right twill on the weft surface, the elastic yarn in the concave area is used as the full weft weave point, and the non-elastic yarn uses four pieces of right twill weave on the warp surface, using Miura folding structure to weave the fabric, Because the shape-memory yarn in the weft turns into a straightened spiral state at high temperature and can be fixed, a high-stretch fa...

Embodiment 2

[0049] Use pure cotton yarn as warp yarn, cotton-spandex blended yarn as elastic weft yarn, pure cotton yarn as non-elastic weft yarn, double weft weaving, plain weave for elastic weft yarn in non-folding area, plain weave for non-elastic weft yarn, and elastic in raised area The weft yarn is used as the whole warp weave point, the non-elastic weft yarn uses four pieces of right twill on the weft surface, the elastic weft yarn in the concave area is used as the full weft weave point, and the non-elastic weft yarn uses four pieces of warp surface right twill weave, weaving with Miura origami structure, after weaving The surface of the fabric is coated with temperature-sensitive shape-memory polyurethane. Under high temperature, the overall structure of the fabric shrinks and the fabric becomes thicker, thus ensuring the safety of the human body.

Embodiment 3

[0051] Elastic nylon yarn is used as warp yarn, cotton and ammonia wrapped yarn is used as elastic weft yarn, pure cotton yarn is used as non-elastic weft yarn, double weft weaving is adopted, elastic weft yarn in non-folding area uses four warp surfaces to make twill, and non-elastic weft yarn uses mountain line Twill weave, the elastic weft yarn in the convex area is used as the whole warp weave point, the non-elastic weft yarn is made of four weft right twill weaves, the elastic weft yarn in the concave area is used as the full weft weave point, the non-elastic weft yarn is used four warp surface right twill weave, weaving has a three-dimensional shape The wedding dress is coated with temperature-sensitive shape memory polymer. Due to its high elasticity, this wedding dress can be applied to more customers, especially suitable for the clothing rental market. At the same time, due to the shape memory function, this wedding dress can be worn on different customers. The same sh...

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 forming method and application of a high-shape-memory high-flexibility and negative-Poisson-ratio fabric. The forming method comprises the steps of drawing a design drawing of a negative-Poisson-ratio fabric of a folding structure, and distinguishing a non-folding area and a folding area composed of a convex area and a concave area; selecting elastic yarns and non-elastic yarns; designing a fabric weave structure adopted by the elastic yarns and the non-elastic yarns; laying a weave on the design drawing according to the fabric weave structure; generating a pattern file; performing weaving on a weaving machine to form the negative-Poisson-ratio fabric of the folding structure; and loading a shape memory material on the woven negative-Poisson-ratio fabric or directly weaving the shape memory material in the weaving process. The weaving method is adopted for one-time forming; the fabric is endowed with the folding diversity, the structural stability, the negative-Poisson-ratio effect and the shape memory effect; the folding structure is subjected to bidirectional large deformation under excitation so as to generate the negative-Poisson-ratio effect and high flexibility; and the fabric can be restored to the initial form after excitation is removed.

Description

technical field [0001] The invention relates to the preparation of a functional fabric and an intelligent fabric, in particular to a forming method of a negative Poisson's ratio fabric with high shape memory and high stretchability and its application, belonging to the technical field of textile science and engineering. Background technique [0002] The shape memory effect was first discovered in the Au-Cd alloy by Read et al. in the United States in 1951. It has a thermoelastic martensitic phase transformation, which can bring shape memory effect and superelasticity to the material. Origami fabrics with negative Poisson’s ratio effects are widely used in decorative design and functional fabrics. In decorative design, fabrics with three-dimensional effects can be formed, which has a unique visual aesthetic feeling; fabrics with origami configurations can be used in functional fabrics to form origami fabrics. Or the effect of paper cutting, so that the fabric has intrinsic fu...

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): D03D15/567D03D15/283D03D15/47D03D15/56D03D15/217D03D15/225D03D11/00D03D1/00D03C19/00
CPCD03D15/567D03D15/283D03D15/56D03D15/47D03D15/217D03D15/225D03D11/00D03D1/00D03C19/00D10B2501/00D10B2509/00D10B2501/04
Inventor 杜赵群许巧丽刘倬然刘一铭陈韦韦朱秋雨顾婧苏玛艳·阿力甫何玲娥
Owner DONGHUA UNIV
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