3D printing stretched yarn, processing method and application

A 3D printing and 3D printer technology, applied in the fields of processing, auxetic yarn structure, and textile science, can solve the problems that are difficult to meet the requirements of functional textiles and difficult to be favored by consumers, and achieve good controllability and large adjustability , Good stretching effect

Active Publication Date: 2018-07-06
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

make it difficult for consumers to favor
[0006] Obviously, conventional auxetic yarn structures and processing methods are difficult to meet people's requirements for functional textiles due to the limitations of structure, materials and other factors.

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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  • 3D printing stretched yarn, processing method and application
  • 3D printing stretched yarn, processing method and application
  • 3D printing stretched yarn, processing method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Example 1 Preparation of PLA concave hexagonal auxetic yarn

[0063] Such as figure 1 The 3D printed auxetic yarn 1 shown in (a) includes a multi-layer structure formed by 3D printing, the surface of each layer contains an auxetic geometric structure 2, and adjacent layers are connected to each other. The multi-layer structure is composed of a plurality of cylindrical layers arranged in sequence from the inside to the outside. The number of layers contained in the 3D printed auxetic yarn 1 and the spacing between each layer can be adjusted within the diameter range of the yarn, and the surface porosity of the yarn can be controlled. The layers of the 3D printed auxetic yarn 1 are connected by the connection points printed by the direct molding process (such as figure 1 (b) shown).

[0064] The auxetic geometric unit that produces the auxetic effect on the surface of the auxetic yarn is a concave hexagon, such as figure 2 As shown in (a), the printing material is PL...

Embodiment 2

[0067] Embodiment 2 Preparation of PLA star-shaped auxetic yarn

[0068] Similar to the 3D printing auxetic yarn of Example 1, the difference is that the multi-layer structure is composed of a plurality of involute cylindrical layers sequentially arranged from the inside to the outside. The auxetic geometric unit that produces the auxetic effect on the surface of the auxetic yarn is star-shaped, such as figure 2 As shown in (b), the printing material is PLA, and the molding method is fusion deposition, which is formed by stacking and stacking involute cylinders.

[0069] The above-mentioned 3D printing auxetic yarn processing method is: use CAD design software to design a three-dimensional data model of the yarn with a star-shaped auxetic structure, ensure that the designed model size matches the actual yarn magnitude, and then the designed model Export it to a common format, use the slicing software of the 3D printer to slice the above-mentioned design model, obtain a slice...

Embodiment 3

[0071] Example 3 Preparation of Photosensitive Resin Double Arrowhead Auxetic Yarn

[0072] Similar to the 3D printed auxetic yarn in Example 1, the difference is that the auxetic geometric unit that produces the auxetic effect on the surface of the auxetic yarn is a double arrow shape, such as figure 2 As shown in (c), the printing material is photosensitive resin, and the molding method is light curing, which is formed by stacking and stacking concentric cylinders.

[0073]The above-mentioned 3D printing auxetic yarn processing method is as follows: use CAD design software to design a three-dimensional data model of the yarn with a double arrow-shaped auxetic structure, ensure that the designed model size matches the actual yarn order of magnitude, and then print the designed The model is exported to a common format, and the above-mentioned design model is sliced ​​using the slicing software of the 3D printer to obtain a sliced ​​data model that can be printed on the 3D pri...

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Abstract

The invention provides a 3D printing auxetic yarn, a processing method and an application. The 3D printing auxetic yarn is characterized by comprising a multi-layer structure formed by 3D printing, the surface of each layer comprises aN auxetic geometric structure, and the adjacent layers are connected to each other. The 3D printing auxetic yarn, the processing method and the application can be applied to the design of the auxetic yarns with simple structures, and with complex structures such as non-cylindrical section auxetic yarns, composite yarns and the like, and the obtained stretched yarn structures has good controllability; and meanwhile, the system is simple in implementation process, a large number of intermediate processes are not needed, damage to the yarn performance due to themulti-stage process in the traditional spinning process is avoided, yarns with the optimal performance under the design structure can be obtained, the production efficiency is high, the manufacturedyarn is good in tensile effect and stable in structure, the mechanical property is excellent, adjustability is large, and the basic requirements of functional textiles can be met.

Description

technical field [0001] The invention relates to the structure, processing method and application of auxetic yarn, especially the structure and spinning method of auxetic yarn prepared by using rapid prototyping technology, belonging to the field of textile science and technology. Background technique [0002] Auxetic material is a new type of material with excellent fracture toughness, shear stiffness, indentation resistance and energy absorption properties. Unlike most materials in nature, this material has a unique deformation mechanism of stretching expansion and compression contraction. Based on the excellent physical and mechanical properties of auxetic materials, this material has been favored by researchers in textile and related fields. [0003] At present, the research on auxetic materials in the textile industry mainly focuses on: automotive textile materials such as seat cushions and seat belts, human body protection materials such as knee pads, wrist guards, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/118B33Y10/00B33Y80/00
CPCB33Y10/00B33Y80/00
Inventor 杜赵群陈俊丽何玲娥仵玉芝张明月龚占江邵青青李涵余卫东马明英
Owner DONGHUA UNIV
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