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Aftertreating flame retarding method for fiber precursors

A fiber precursor and precursor technology, applied in the fields of viscose fiber, cotton fiber and polyester fiber, can solve the problems of high investment and complex technical transformation, and achieve the effect of improving textile processing performance

Inactive Publication Date: 2016-02-10
王西平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Ordinary fiber flame retardant modification includes copolymerization method, graft modification method, blending method, skin-core composite spinning method and post-treatment flame retardant modification. The first four methods all involve the preparation process of raw silk, and the technical transformation is complicated. , requires high investment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: flame retardant treatment of viscose fiber precursor

[0018] At 40-50°C, soak viscose fiber precursors in a flame retardant solution, and the mass percentage of inorganic flame retardants is 20-25%; after 1-2 minutes, take it out and use a centrifuge for dehydration, and the obtained raw The moisture content of the silk is 55%, and it is dried in a drying equipment at 110-120° C. for 40-45 minutes to obtain non-durable flame-retardant viscose fiber.

[0019] The limiting oxygen index of the finished viscose fiber is 31-32%, and the strength retention rate is 80-90%.

Embodiment 2

[0020] Embodiment 2: flame retardant treatment of cotton fiber precursor

[0021] At 40-50°C, soak cotton fiber precursors in a flame retardant solution, and the mass percentage of inorganic flame retardants is 15-25%; after 1-3 minutes, take them out and use a centrifuge for dehydration, and the obtained raw silk sweat The rate is 50%; drying treatment in drying equipment at 110-120° C. for 40-50 minutes to obtain non-durable flame-retardant cotton fibers.

[0022] The limiting oxygen index of the finished cotton fiber is 29-30%, and the strength retention rate is 80-90%.

Embodiment 3

[0023] Embodiment 3: flame retardant treatment of polyester precursor

[0024] At 40-50°C, the polyester raw silk is immersed in the flame retardant solution, and the mass percentage of the inorganic flame retardant is 15-25%; after 2-5 minutes, it is taken out and dehydrated by a centrifuge, and the sweat rate of the obtained raw silk is It is 15%; it is dried in a drying equipment at 100-110°C for 10-12 minutes to obtain non-durable flame-retardant polyester fibers.

[0025] The limiting oxygen index of the finished cotton fiber is 22-27%, and the strength retention rate is 65-75%.

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Abstract

The invention relates to an aftertreating flame retarding modification method for precursors of viscose fibers, cotton fiber and polyester fibers. The aftertreating flame retarding modification method for the fiber precursors comprises the following steps that 1, the fiber precursors absorb an inorganic flame retardant solution through a steeping technology; 2, the remaining inorganic flame retardant solution is removed through a dewatering technology; 3, the fiber precursors are dried. According to the aftertreating flame retarding method for the fiber precursors, the fiber precursors are permeated, precipitated and adsorbed through the inorganic flame retardant solution to obtain non-durable flame retardant fibers; the flame retarding modification treatment of the fiber precursors is achieved on fiber aftertreating production equipment, the finished fibers are excellent in flame retardance and good in strength retention rate.

Description

technical field [0001] The invention relates to a post-treatment flame-retardant modification method for fiber precursors, in particular to the fields of viscose fibers, cotton fibers and polyester fibers. Background technique [0002] The number and death rate of fires caused by textiles are higher than those caused by other causes, among which bedding, upholstery and clothing are the main causes of fire. Especially in building and residential fires, textiles account for a larger proportion of fire spread. With the strengthening of fire protection awareness and the gradual improvement of safety regulations, flame retardant fabrics are more and more widely used in all aspects of life. Nowadays, in European and American countries, the use of flame-retardant fabrics in textiles in public places has become a mandatory requirement, and there are also strict requirements on the environmental protection properties of flame-retardant materials. The flame retardant modification of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06B3/02D06B15/00
Inventor 王西平
Owner 王西平
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