Skin-core type composite fiber and production method thereof

A composite fiber and sheath-core technology, applied in fiber processing, filament/thread forming, conjugated synthetic polymer artificial filament, etc., can solve the problem of low strength, sheath component reduction, and slow alkali reduction speed, etc. problem, to achieve a good light feeling effect

Active Publication Date: 2014-02-12
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the alkali decrement rate of the core component of this composite fiber is not fast, which causes the sheath component to decrease in weight, resulting in low strength.

Method used

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  • Skin-core type composite fiber and production method thereof
  • Skin-core type composite fiber and production method thereof
  • Skin-core type composite fiber and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Slices of the skin component polymer polyethylene terephthalate (PET) and the core component polymer alkali-soluble copolyester (copolymerization component SSIA: 8mol%, PEG1000: 5wt%, IAP: 7wt%) were dried separately To below 100ppm, the PET chip enters the A screw through the A silo and melts at a temperature of 290°C, and the discharge volume is controlled by the A metering pump, and the alkali-soluble copolyester chips enters the B screw through the B silo to melt at a temperature of 270°C. The discharge volume is controlled by the B metering pump. The sheath-core composition passes through the composite spinning assembly at a temperature of 290°C controlled by the spinning box according to the discharge volume ratio of 50:50, and the as-spun fibers are spun. Cooling and solidification under certain conditions, and then oil the fibers evenly through the oil nozzle to bundle the fibers and reduce friction. The oil supply rate is 0.7%. The fibers that have been oiled a...

Embodiment 2

[0057] Except that the skin component polymer was changed to polybutylene terephthalate (PBT), other conditions were the same as in Example 1. See Table 1 for the specific data of the results after weight reduction of the fibers and fabrics.

Embodiment 3

[0059] Except that the skin component polymer was changed to polytrimethylene terephthalate (PTT), other conditions were the same as in Example 1. See Table 1 for the specific data of the results after weight reduction of the fibers and fabrics.

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Abstract

The invention discloses a skin-core type composite fiber and a production method thereof. Skin-core components of the composite fiber are through continuously along the length direction of the fiber. The weight ratio of the skin to the core is 40:60-80:20. The core component is an alkali-soluble modified polyester, and the skin component is a thermoplastic fiber forming polymer. In the cross section of the composite fiber, the core component is exposed on the skin component only in one position, and the arc length of the exposed part is 15-25% of the outer circumference of the composite fiber. The alkali minimization dissolution speed of the core component of the composite fiber is fast. The treated fiber maintains over 98% of strength and maintains a complete C-type section morphology, and therefore fabrics have good lightweight sense, heat insulating capability, a moisture absorbable function and a sweat releasing function.

Description

technical field [0001] The invention relates to a sheath-core composite fiber and a manufacturing method thereof. Background technique [0002] With the rapid development of science and technology and the continuous improvement of people's living standards, people's requirements for the practical functions of clothing are not only to protect the body from the cold, but also in many ways: from comfort to health care, from safety to hygiene, from convenience for storage and It can be processed to suit different climates and environments, from adapting to the rhythm of life of modern people to adapting to the way of life of modern people. Especially in recent years, the climate is erratic, and the daily temperature difference is large. People often cause frequent outbreaks of many diseases due to untimely replacement of clothes. higher requirements. [0003] The human body and the outside world transfer heat to the outside world through clothing in three forms of heat conduct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/84D01F8/12D01F8/14D01D5/34C08G63/672
Inventor 曹海兵藤森稔
Owner TORAY IND INC
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