Anti-static, wet absorption and dyeable core-skin composite fiber and its preparing method

A composite fiber, skin-core technology, used in fiber processing, filament/thread forming, conjugated synthetic polymer rayon, etc., can solve problems such as loss of antistatic properties

Inactive Publication Date: 2006-08-23
BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during heat treatment such as fabric scouring and dyeing, because the core resin is easy to expand afte...

Method used

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  • Anti-static, wet absorption and dyeable core-skin composite fiber and its preparing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The sheath-core composite fiber uses two screws to control their respective temperatures to melt the high-temperature and high-pressure cationic dyeable polyester (CDP) (A) and PBT-PEG copolyether ester (B) to form the sheath-core respectively. , transported to the spinning box through their respective melt pipelines, and then the melt is quantitatively sent to the sheath-core composite spinning assembly by the metering pump according to the regulations, extruded, cooled, oiled, and wound to obtain the sheath-core Precursors of fiber-type composite fibers, which can then be stretched and shaped to obtain finished sheath-core fibers. The spinning temperature is 275°C, the winding speed can be adjusted within the range of 2200m / min, the stretching temperature is 80°C, the setting temperature is 156°C, and the stretching ratio is 2.5 times. The equilibrium moisture regain of this fiber is 2.5%, and it can be dyed in any color. Table 1 is a comparison of the specific resis...

Embodiment 2

[0020] The sheath-core composite fiber uses two screws to control their respective temperatures to melt the sheath-core atmospheric pressure boiling dyeable cationic dyeable polyester (ECDP) (B) and PET-PEG copolyether ester (A) respectively. Raw materials, B / A=70 / 30 (mass ratio), are transported to the spinning box through their respective melt pipelines, and then the melts are quantitatively sent to the sheath-core composite spinning assembly by the metering pump for extrusion. out, cooling, oiling, hot roller stretching, and winding to obtain the finished sheath-core composite fiber yarn. The spinning temperature is 270°C, the winding speed is adjusted within the range of 1800m / min, the stretching temperature is 80°C, the setting temperature is 160°C, and the stretching ratio is 2.7 times. The equilibrium moisture regain of the fiber is 2.6%, and it can be dyed in any color. The specific resistance value of the fiber measured under standard conditions is 10. 7 Ω·cm.

Embodiment 3

[0022] The sheath-core composite fiber uses two screws to control their respective temperatures to melt the sheath-core atmospheric pressure boiling dyeable cationic dyeable polyester (ECDP) (B) and PBT-PEG copolyether ester (A)2 respectively. Raw materials, B / A=72 / 28 (mass ratio), are transported to the spinning box through their respective melt pipelines, and then the melts are quantitatively sent to the sheath-core composite spinning assembly by the metering pump for extrusion. After drawing, cooling, oiling and winding, the raw silk of sheath-core composite fiber is obtained, and the raw silk is stretched and shaped to obtain the finished sheath-core fiber. The spinning temperature is 270°C, the winding speed can be 1200m / min, the stretching temperature is 80°C, the setting temperature is 155°C, and the stretching ratio is 3.2 times. The sheath-core composite fiber fabric also has good antistatic performance. The initial frictional static voltage of the fabric is only 0.14...

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Abstract

The core-skin type composite fiber and its preparation process is disclosed. The core-skin type composite fiber comprises two kinds one polymer material, and includes a core layer of A-B block copolyether ester and a skin layer of melt spun fiber forming polymer in the core/skin ratio of 40/60 to 6-96. The fiber may be long or short fiber for woven fabric, knitted fabric and non-woven fabric. The fabric has excellent hydroscopicity, antistatic performance, dry and smooth hand feeling and high color fastness and is suitable for use in underwear, shirt, coat, lining, etc.

Description

technical field [0001] The invention relates to a sheath-core composite fiber, in particular to a pure high polymer sheath-core composite fiber without carbon powder and carbon nanotubes. Background technique [0002] Fiber type shortcoming Pure conductive polymer fiber high cost metal fiber Not easy to weave, not dyeable Polymer Surface Carburized Fiber High cost, complex process, black fiber, non-dyeable carbon conductive fiber High cost, high modulus, non-dyeable Blended Carbon Black Conductive Fiber Spinning and stretching workability is poor, the fiber is black, not dyeable Composite carbon black conductive fiber Spinning processing has poor operability, high cost, black fiber and cannot be dyed [0003] At present, polymer conductive and antistatic fibers mostly use carbon black and carbon nanotubes as the conductive medium, and then use a certain polymer as a carrier to form a blend...

Claims

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Application Information

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IPC IPC(8): D01D5/34D01F8/14D01F8/08
Inventor 张大省王锐陈玉顺
Owner BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
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