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

An eccentric fiber and multi-component technology, applied in fiber processing, conjugated synthetic polymer artificial filament, artificial filament cleaning/drying, etc., can solve the problem of production cost reduction, poor compatibility between the skin layer and the core layer, etc. problem, to achieve the effect of cost reduction, low density and energy saving

Active Publication Date: 2011-12-14
DONGHUA UNIV
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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

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The core layer component is PP and maleic anhydride modified PP, the mass ratio is 60:40, the skin layer component is PA6, and the graft ratio of maleic anhydride 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; 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. The spinning speed is 3300m / min, the stretching temperature of the stretching process is 100°C, and the stretching ratio is 1.5 times to obtain a composite three-dimensional crimped fiber of various compone...

Embodiment 2

[0039] The core component melt is PP and EVA, the mass ratio is 90:10, and the skin 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; 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. The spinning speed is 3000m / min, the stretching temperature of the stretching process is 100°C, and the stretching ratio is 1.65 times to obtain a composite three-dimensional crimped fiber of multiple components whose cross-sectional area of ​​the skin layer component accounts for 70% of the cr...

Embodiment 3

[0042] The core layer component is PP and maleic anhydride modified PP, the mass ratio is 80:20, the skin layer component is PA6, and the graft ratio of maleic anhydride modified PP is 5%.

[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; 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; spinning temperature: melting temperature: zone I: 210°C, zone II: 230°C, zone III: 250°C, Zone IV: 270°C, the temperature of the composite spin pack is 265°C. The spinning speed is 1500m / min, the stretching temperature of the stretching process is 100°C, and the stretching ratio is 2.8 times to obtain a composite three-dimensional crimped fiber of va...

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Abstract

The invention relates to a multi-component composite eccentric fiber. The fiber is a sheath-core composite fiber with an eccentric structure spun by using different components for the skin layer and the core layer. The core layer component is composed of PP components and modified Two-component mixed components composed of PP or EVA components; or the core layer component is a three-component mixed component composed of PP components, low melting point PA6 components and modified PP or EVA components; the modified PP refers to the A PP that improves compatibility with the cortex. A method for preparing multi-component composite eccentric fibers. After drying the skin layer component and the two-component core layer separately, the skin layer component is melted by a screw alone, and the two-component core layer is melted and mixed by a screw, and then enters the eccentric The sheath-core composite spinning assembly spins and winds to obtain multi-component composite eccentric fibers. 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 the composite fiber capable of producing permanent crimp elasticity.

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 improvement of people's quality of life, the demand for textiles is also changing. Especially for clothing products, people not only want to wear body coverings, but also want to pursue comfort and health. Advocating the combination of external image beauty and internal health care functions has become A hot spot in clothing consumption. Therefore, we should speed up the structural optimization and adjustment and industrial upgrading of the chemical fiber industry, increase the proportion of differentiated and functional fibers, develop the chemical fiber market, and achieve breakthroughs in high-tech fiber industrialization engineering technology. [0003...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/12D01F8/06D01D5/34D01D10/06
Inventor 王依民彭刚施佳炜叶敏倪建华王燕萍
Owner DONGHUA UNIV
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