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A kind of production method of the blended yarn containing flame-retardant polyamide fiber and polyarylate fiber

A flame-retardant polyamide and polyarylate fiber technology, which is applied in fiber treatment, yarn, textiles and papermaking, can solve the problems of poor mechanical properties of flame-retardant polyamide blended yarns, and achieve increased noil rate and short-staple rate, increase in raw material loss, and reduce the effect of carding partitions

Active Publication Date: 2020-08-25
无锡高仕康新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of poor mechanical properties of flame-retardant polyamide blended yarn in the prior art, and to provide a flame-retardant polyamide blended yarn with excellent mechanical properties

Method used

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  • A kind of production method of the blended yarn containing flame-retardant polyamide fiber and polyarylate fiber
  • A kind of production method of the blended yarn containing flame-retardant polyamide fiber and polyarylate fiber
  • A kind of production method of the blended yarn containing flame-retardant polyamide fiber and polyarylate fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] A production method of a blended yarn containing flame-retardant polyamide fiber and polyarylate fiber, after the flame-retardant polyamide fiber combed sliver and polyarylate fiber combed sliver are made into a mixed cooked sliver through a second drawing process , the mixed cooked sliver is made into a blended yarn through a roving process and a spun process;

[0082] Flame-retardant polyamide fiber combed sliver and polyarylate fiber combed sliver are respectively made from flame-retardant polyamide fiber and polyarylate fiber through pretreatment process, cleaning-carding process and combing process;

[0083] Among the raw materials used for spinning, the mass content of flame-retardant polyamide fiber and polyarylate fiber is 70wt% and 30wt% respectively; the flame-retardant polyamide fiber is flame-retardant PA6 fiber; the breaking strength of flame-retardant polyamide fiber is 3.70cN / dtex, the average length is 38mm; the breaking strength of polyarylate fiber is...

Embodiment 2

[0096] A production method of a blended yarn containing flame-retardant polyamide fibers and polyarylate fibers is basically the same as in Example 1, except that the mass contents of flame-retardant polyamide fibers and polyarylate fibers are 60 wt% and 40wt%, the total number of longitudinal needle rows of other carding zones except the first carding zone is 16, the working angle of the tooth piece is 58°, the tooth density of the top comb is 220 teeth / 100mm, the tooth tip angle is 20°, the cylinder The average tooth density is 30 teeth / cm 2 , The total number of teeth in the cylinder is 16000 teeth, and the length of the cylinder carding dead zone is 10mm.

[0097] After the flame-retardant polyamide fiber and polyarylate fiber are combed, the noil rate is 10.4%, the noil short-lint rate is 1.5%, and the average straightness of the combed sliver is 0.95.

[0098] The smoldering time of the finally prepared blended yarn is 0s, the afterburning time is 0s, the carbonization ...

Embodiment 3

[0100] A production method of a blended yarn containing flame-retardant polyamide fibers and polyarylate fibers is basically the same as in Example 1, except that the mass contents of flame-retardant polyamide fibers and polyarylate fibers are 50 wt% and 50 wt% respectively. 50wt%, the total number of longitudinal pin rows of other carding partitions except the first carding partition is 14, the working angle of the tooth piece is 65°, the tooth density of the top comb is 150 teeth / 100mm, the tooth tip angle is 21°, the cylinder The average tooth density is 28 teeth / cm 2 , The total number of teeth in the cylinder is 12000 teeth, and the length of the cylinder carding dead zone is 12mm.

[0101] After the flame-retardant polyamide fiber and polyarylate fiber are combed, the noil rate is 9.5%, the noil short-lint rate is 1.2%, and the average straightness of the combed sliver is 0.94.

[0102] The smoldering time of the finally prepared blended yarn is 0s, the afterburning tim...

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Abstract

The invention relates to a production method of blended yarn containing antiflaming polyamide fiber and polyarylester fiber. After antiflaming polyamide fiber combing sliver and polyarylester fiber combing sliver are subjected to two-step drawing procedures to manufacture mixed cooked sliver, the mixed cooked sliver is subjected to the roving step and the spinning step to obtain blended yarn; theantiflaming polyamide fiber combing sliver and the polyarylester fiber combing sliver are each manufactured by antiflaming polyamide fiber and polyarylester fiber through the proprocessing step, the blowing-carding step and the combing step; according to the combing step corresponding to the antiflaming polyamide fiber and the polyarylester fiber, the cylinder combing dread region length is 0-3 mmlarger than the bent hook part average length of the antiflaming polyamide fiber and the polyarylester fiber. The antiflaming polyamide fiber and the polyarylester fiber are blended according to thespecific combing technology, the cylinder combing dead region length in the combing step is controlled, and the manufactured blended yarn has the advantages of being excellent in mechanical performance, anti-flaming performance, anti-dripping performance and the like.

Description

technical field [0001] The invention belongs to the technical field of blended yarns, and in particular relates to a production method of blended yarns containing flame-retardant polyamide fibers and polyarylate fibers. Background technique [0002] The modulus of polyamide fiber itself is low, the physical and mechanical properties of polyamide fiber after flame-retardant modification or finishing are reduced, the strength of flame-retardant polyamide fiber and its pure textile fabric is lost to a certain extent, and the fabric feels soft, Skinny. Flame-retardant polyamide fibers shrink strongly when exposed to fire, and are prone to melt and drip. The flame-retardant textiles woven from this are likely to cause secondary injuries such as burns to the human body. In addition, the wash resistance of flame-retardant polyamide fabrics cannot be guaranteed. [0003] At present, flame-retardant polyamide fibers are mainly used for blending with other fibers to prepare flame-re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D02G3/04D02G3/44D01G19/10
Inventor 郁崇文杨建平钱希茜王依民倪建华
Owner 无锡高仕康新材料科技有限公司
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