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Flexible and heterogeneous nylon-6 fiber and preparation method thereof

A nylon, light and soft technology, applied in the field of functional differential fiber production, can solve the problems of nylon 6 fiber not soft enough, poor spinnability and shape degree, poor elasticity, etc., achieve novel design method, improve spinnability properties, increasing the surface area

Active Publication Date: 2012-04-11
YIWU HUADING NYLON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method improves the hygroscopic performance of nylon 6 fiber, the spinnability and shape degree of the fiber are not good, and the prepared nylon 6 fiber is not soft enough and has poor elasticity.

Method used

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  • Flexible and heterogeneous nylon-6 fiber and preparation method thereof
  • Flexible and heterogeneous nylon-6 fiber and preparation method thereof
  • Flexible and heterogeneous nylon-6 fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Preparation of soft polyisopolyamide 6 POY

[0053] Product specification: 90dtex / 24f POY, using fiber-grade nylon 6 slices with a relative viscosity of 2.2-2.6 as raw material, fiber-grade nylon 6 slices do not contain matting agent, adopts melt spinning method, the process is: feeding - melting, spinning - cooling forming - oiling - winding.

[0054] In this embodiment: V-shaped micro-hole combined spinneret, the size of the V-shaped spinneret micro-holes: the intersection angle α of the two sides of the V shape is 60??, the lengths of the two sides are equal, and the aspect ratio (L / b ) is 8, and L=0.70mm. The 3 V shapes are arranged in an equilateral triangle, the V-shaped cone angle faces outward, the V-shaped opening faces inward, and the gap between adjacent V-shaped spinneret microholes is 0.06mm, so they are combined into a structural unit (see attached figure 2 shown). The oil agent is Takemoto F5178, an aqueous solution with an oil concentration of 8%.

...

Embodiment 2

[0058] Preparation of soft polyisopolyamide 6 HOY

[0059] Fiber-grade nylon 6 slices with a relative viscosity of 2.42 are used as raw materials, and the fiber-grade nylon 6 slices contain 0.3% mass percentage of matting agent titanium dioxide. The melt spinning method is adopted, and the process is: feeding—melting, spinning—cooling Forming - oiling - winding.

[0060] In this embodiment: V-shaped micro-hole combined spinneret, the size of the V-shaped spinneret micro-hole: the intersection angle α of the two sides of the V shape is 75??, the lengths of the two sides are equal, and the aspect ratio (L / b ) is 5, and L=1.0mm. The three V shapes are arranged in an equilateral triangle, the V-shaped cone angle faces outward, the V-shaped opening faces inward, and the gap between adjacent V-shaped spinneret microholes is 0.055 mm, thus forming a structural unit. The oil agent is Dak L-1838, an aqueous solution with a mass concentration of oil agent of 10%. The specific process...

Embodiment 3

[0063] Preparation of soft polyisopolyamide 6 FDY

[0064] Fiber-grade nylon 6 chips with a relative viscosity of 2.45 are used as raw materials, and the mass percentage of titanium dioxide, a matting agent, is 0.3%. The melt spinning method is adopted. The process is: raw material pretreatment—melting, spinning—cooling and forming—— Oiling - stretching - heat setting - winding.

[0065] In this embodiment: V-shaped micro-hole combined spinneret, the size of the V-shaped spinneret micro-holes: the intersection angle α of the two sides of the V shape is 60??, the lengths of the two sides are equal, and the aspect ratio (L / b ) is 6, and L=0.8mm. The three V shapes are arranged in an equilateral triangle, the V-shaped cone angle faces outward, the V-shaped opening faces inward, and the gap between the adjacent V-shaped spinneret microholes is 0.04 mm, thus forming a structural unit. The oil agent is Takemoto F6468, an aqueous solution with a mass concentration of oil agent of 1...

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Abstract

The invention relates to the technical field of functional and differentiated fiber production, and aims to provide flexible and heterogeneous nylon-6 fiber and a preparation method thereof. The flexible and heterogeneous nylon-6 fiber is formed by V-shaped jet micropore spinning and a melting spinning method by using fiber-level nylon-6 chips as substrates; the internal part of the section of the flexible and heterogeneous nylon-6 fiber is hollow, and the periphery of the section is triangular; and the relative radial profile degree of the cross section of the flexible and heterogeneous nylon-6 fiber is 20 to 30 percent, and the relative section profile degree is 35 to 55 percent, and hollowness of the flexible and heterogeneous nylon-6 fiber is 10 to 30 percent. The fiber has good mechanical properties, and high elasticity, hygroscopicity and heat retention, and can be widely used for the fields of underwear, socks, clothing and the like.

Description

technical field [0001] The invention relates to the technical field of functional differential fiber production, in particular to a soft polyisonylon 6 fiber and a preparation method thereof. Background technique [0002] With the improvement of living standards and the increase of leisure time, people put forward higher requirements for the quality of clothing fabrics. Fashionable, healthy, comfortable and casual clothing is more and more popular among consumers, and clothing fabrics are becoming more and more high-end and diverse. Development in the direction of modernization and functionalization. As one of the four major synthetic fibers, nylon 6 fiber is widely used in textiles, clothing and other non-woven fields because of its excellent physical and chemical properties. In terms of developing differentiated fibers, Europe, the United States, and Japan started earlier and are more advanced, and have obtained many patents and product brands, but most of them are concen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/24D01D5/253D01D5/088
Inventor 宁佐龙张顺花韩建
Owner YIWU HUADING NYLON
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