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A kind of multi-component composite eccentric fiber and its preparation method

An eccentric fiber, multi-component technology, applied in fiber processing, conjugated synthetic polymer rayon, filament/thread forming, etc., can solve the problems of lower production cost, poor compatibility between skin and core layer, etc. , to achieve the effect of cost reduction, low density, and reduction of sewage discharge

Inactive Publication Date: 2011-12-14
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention solves the problem of poor compatibility between the skin layer and the core layer in the eccentric sheath-core composite fiber, and obtains a composite fiber capable of producing permanent crimp elasticity. The composite fiber is easy to dye in post-processing, which can save energy and reduce sewage discharge ; and the resulting fabric is light and soft, and the patented process also reduces the production cost of the fabric

Method used

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  • A kind of multi-component composite eccentric fiber and its preparation method
  • A kind of multi-component composite eccentric fiber and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The skin layer is PA6 and modified PA6, the modified PA6 is 5wt% of PA6, the modified PA6 is silane A-143 modified PA6, and the grafting rate is 0.5%; the core layer components are PP and γ-neon propyl trimethyl nitrogen PP modified by γ-neuryl silane, the mass ratio is 60:40, the skin layer component is PA6, and the grafting rate of γ-neonopropyltrimethylazinosilane modified PP is 0.6%.

[0037] The composite mass ratio of skin layer / core layer is 70:30, PA6 drying process: drying temperature 110°C, drying time 8 hours, vacuum degree during drying 0.1MPa; modified PA6 drying process: drying temperature 110°C, drying time 8 hours , The vacuum degree during drying is 0.1MPa; spinning temperature: melting temperature: zone I: 230°C, zone II: 250°C, zone III: 260°C, zone IV: 278°C, the temperature of the metering pump is 265°C. Core component drying process: drying temperature 110°C, drying time 8 hours, vacuum degree 0.1MPa during drying; spinning temperature: melting tem...

Embodiment 2

[0039] The skin layer is PA6 and modified PA6, the modified PA6 is 10wt% of PA6, the modified PA6 is vinyltrichlorosilane modified PA6, and the grafting rate is 5%; the core layer component melt is PP and EVA, the mass ratio The ratio is 90:10, and the cortical component is PA6.

[0040] The composite mass ratio of skin layer / core layer is 70:30, PA6 drying process: drying temperature 110°C, drying time 8 hours, vacuum degree during drying 0.1MPa; modified PA6 drying process: drying temperature 110°C, drying time 8 hours , The vacuum degree during drying is 0.1MPa; spinning temperature: melting temperature: zone I: 230°C, zone II: 250°C, zone III: 260°C, zone IV: 278°C, the temperature of the metering pump is 265°C. Core component drying process: drying temperature 110°C, drying time 8 hours, vacuum degree 0.1MPa during drying; spinning temperature: melting temperature: zone I: 210°C, zone II: 230°C, zone III: 250°C, zone IV Zone: 270°C, composite spin pack temperature 265°C....

Embodiment 3

[0042] The cortex is PA6 and modified PA6, the modified PA6 is 8wt% of PA6, the modified PA6 is γ-2,3-glycidoxypropyltrimethoxysilane modified PA6, and the grafting rate is 2%; the core The layer components are PP and γ-2,3-glycidoxypropyltrimethoxysilane modified PP, the mass ratio is 80:20, and the skin layer components are PA6, γ-2,3-glycidoxypropoxy The grafting rate of propyltrimethoxysilane modified PP is 3%.

[0043] The composite mass ratio of skin layer / core layer is 50:50, PA6 drying process: drying temperature 110°C, drying time 8 hours, vacuum degree during drying 0.1MPa; modified PA6 drying process: drying temperature 110°C, drying time 8 hours , The vacuum degree during drying is 0.1MPa; spinning temperature: melting temperature: zone I: 230°C, zone II: 250°C, zone III: 260°C, zone IV: 278°C, the temperature of the metering pump is 265°C. Core layer component drying process: drying temperature 110°C, drying time 8 hours, vacuum degree 0.1MPa during drying; spinn...

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Abstract

The invention relates to a multi-component composite eccentric fiber. The fiber is a skin-core type composite fiber with an eccentric structure spun by using different components for the skin layer and the core layer. The skin layer component is PA6 and modified PA6, and the core layer is PA6. The layer component is a two-component mixed component composed of PP component and modified PP or EVA component; or the core layer component is a three-component mixed component composed of PP component, low melting point PA6 component and modified PP or EVA component . A method for preparing multi-component composite eccentric fibers. After drying the two components of the skin layer component and the core layer separately, the skin layer component and the core layer component are respectively melted and mixed by a screw, and then enter the eccentric skin-core composite spinning assembly After spinning and winding, multi-component composite eccentric fibers are obtained. The invention solves the problem of poor compatibility between the skin layer and the core layer in the eccentric sheath-core composite fiber, and obtains a composite fiber capable of producing permanent crimp elasticity. The post-processing and dyeing is simple, the obtained fabric is light and soft, and the production cost of the fabric is reduced. At the same time, it can save energy and reduce sewage discharge.

Description

technical field [0001] The invention relates to a multi-component composite eccentric fiber and a preparation method thereof, in particular to a sheath-core composite fiber with an eccentric structure, which is spun by using different components for the skin layer and the core layer. Background technique [0002] With the development of society, people's demand for textiles is also constantly changing. In order to make people wear comfortable and healthy, and to show the beauty of the external image and the internal health care function, it is necessary to speed up the optimization and adjustment of the chemical fiber industry structure and industrial upgrading, and improve the differentiation and function. Increase the proportion of chemical fiber, open up the chemical fiber market, and achieve a breakthrough in high-tech fiber industrialization engineering technology. [0003] Composite spinning method is one of the important ways of chemical fiber modification, and sheath...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/12D01F8/06D01F8/10D01D5/34
Inventor 王依民李金福倪建华彭刚夏于旻王燕萍
Owner DONGHUA UNIV
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