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Three-component composite negative Poisson ratio yarn with double-layer wrapping structure, three-channel ring spinning device for three-component composite negative Poisson ratio yarn and control method of three-channel ring spinning device

A technology of negative Poisson's ratio and ring spinning, which is applied in the field of spinning, can solve problems such as the inability to spin yarns, and achieve the effect of realizing designability and ensuring reversible transformation

Active Publication Date: 2019-08-02
滁州霞客环保色纺有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In the process of preparing negative Poisson's ratio composite materials, according to different structural and functional requirements, the negative Poisson's ratio coefficient changes along the length of the yarn, and the existing technology cannot spin yarns with negative Poisson's ratio coefficients.

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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  • Three-component composite negative Poisson ratio yarn with double-layer wrapping structure, three-channel ring spinning device for three-component composite negative Poisson ratio yarn and control method of three-channel ring spinning device
  • Three-component composite negative Poisson ratio yarn with double-layer wrapping structure, three-channel ring spinning device for three-component composite negative Poisson ratio yarn and control method of three-channel ring spinning device
  • Three-component composite negative Poisson ratio yarn with double-layer wrapping structure, three-channel ring spinning device for three-component composite negative Poisson ratio yarn and control method of three-channel ring spinning device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] Embodiment one, as shown in the following table 1, select the rigid filaments of high modulus and low elongation such as metal filament, glass filament, carbon fiber filament as the wrapping yarn 1 of double wrapping structure composite yarn (negative Poisson's ratio composite yarn) The first component of the yarn), and the proportion is less than 15%; select self-curling staple fiber, high-shrinkage staple fiber, high-lofty staple fiber, cotton, wool and their mixed fibers as the core yarn of the double-wrapped composite yarn (negative The second component of Poisson's ratio composite yarn), and the proportion is greater than 70%. Use low-density spandex yarn, nylon high-elastic yarn, polyester low-elastic yarn and other low-modulus and high-elongation elastic filaments as the wrapping yarn 2 of the double-wrapping composite yarn (the third group of negative Poisson’s ratio composite yarn) parts), and the proportion is less than 15%.

[0089]

[0090]

[0091] T...

Embodiment 2

[0093] Embodiment two, by regulating the first rear roller 4-1, the second rear roller 4-2, the middle roller 6-1, the front left roller 9-1, the front right roller 9-2, the front middle roller 9-3, and The rotating speed of the spindle realizes the online change of the covering ratio of the spun covered yarn to the core yarn, and then regulates the online change of the Poisson's ratio coefficient of the composite yarn.

[0094] The negative Poisson's ratio of the composite yarn is due to the change in the transverse dimension of the yarn due to the phase transition in the yarn structure. Let the diameter of the core yarn be D, and the diameter of the wrapping yarn 1 be d 1 , the diameter of wrapping yarn 2 is d 2 , take d=(d 1 +d 2 ) / 2. The apparent diameter of the composite yarn under low tension conditions is: (2*d+D), and the apparent diameter of the composite yarn under high tension conditions is: (2*D+d); then the diameter change rate of the composite yarn ε=-(D-d) / ...

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Abstract

The invention relates to a three-component composite negative Poisson ratio yarn with a double-layer wrapping structure, a three-channel ring spinning device for the three-component composite negativePoisson ratio yarn and a control method of the three-channel ring spinning device. According to the invention, a third component elastic filament is added, and a first-layer wrapped composite yarn iscoated with a second layer, so that the reversible transformation of a yarn structure under action of alternating tensile stress and effectiveness of negative Poisson ratio effect can be ensured; meanwhile, the linear density of staple fiber core yarns is regulated and controlled by an asynchronous drafting mechanism driven by PLC servo, so that negative Poisson ratio coefficients of the composite yarns are changed in sections according to a preset rule, and the designability of the yarn structure and the controllability of distribution of the negative Poisson ratio coefficients are realized.

Description

technical field [0001] The invention relates to a three-component composite yarn with a negative Poisson's ratio of a double-layer wrapping structure, a three-channel ring spinning device and a control method thereof, and belongs to the technical field of spinning. Background technique [0002] Negative Poisson's ratio yarn is a composite yarn with special mechanical properties. The apparent diameter of the yarn will become thicker when it is stretched in the axial direction, resulting in radial expansion deformation. Negative Poisson's ratio yarn is usually composed of two components. The first component is usually made of high modulus and low elongation fiber materials, such as carbon fiber, glass fiber, Kevlar, aramid fiber, etc.; the second component is Fiber materials with low modulus and high elongation, such as silicone rubber, natural rubber or spandex filament. The two-component composite yarn with a double helix structure is spun from these two materials. Under lo...

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): D02G3/04D02G3/32D02G3/38D01H5/22D01H5/32
CPCD02G3/04D02G3/38D02G3/328D01H5/32D01H5/22
Inventor 朱道武薛元彭旭光高杰夏威高格生郭淑军
Owner 滁州霞客环保色纺有限公司
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