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A kind of manufacture method of flame retardant viscose fiber

A technology of flame-retardant viscose fiber and its manufacturing method, which is applied in the direction of flame-retardant fiber, plant fiber, fiber treatment, etc., and can solve the problems of the physical and mechanical properties of the finished fiber, the stability of the spinning production process, the high production cost, and the flame retardant Expensive and other issues, the physical and mechanical performance indicators are not affected, and the flame retardant effect is good

Active Publication Date: 2021-12-17
赛得利(盐城)纤维有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the problem that these preparation methods exist one is that flame retardant is expensive, causes production cost to be too high, has seriously limited the scope of application of flame retardant products
Second, due to the mixing of flame retardant components in the production process, it has a great impact on the physical and mechanical properties of the finished fiber and the stability of the spinning production process.

Method used

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  • A kind of manufacture method of flame retardant viscose fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Alkalinizing, aging, yellowing, dissolving, filtering and degassing wood pulp to obtain viscose spinning solution, and then wet spinning, plasticizing and drawing, desulfurizing and washing viscose fiber, Soak for 12s in the flame retardant soaking solution at a temperature of 50° C.; the flame retardant soaking solution contains 220 g / l of flame retardant TCEP and 5 g / l of penetrant alkylphenol polyoxyethylene ether.

[0029] (2) curing and oiling the viscose fibers after flame retardant soaking through a curing bath with a temperature of 35° C., which contains 40 g / l of flame retardant TCEP and 3.5 g / l of oil in the curing bath, Soak in the curing bath for 20s.

[0030] (3) drying the cured and oiled viscose fiber at a temperature of 132° C. to obtain the flame-retardant viscose fiber.

Embodiment 2

[0032] (1) Cotton pulp is subjected to alkalization, aging, yellowing, dissolution, filtration and degassing to obtain viscose spinning solution, and then viscose fiber after wet spinning, plasticizing drawing, desulfurization and water washing, Soak for 10 seconds in a flame retardant soaking solution at a temperature of 55° C.; the flame retardant soaking solution contains 180 g / l of flame retardant DMMP and 6.5 g / l of penetrating agent fatty alcohol polyoxyethylene ether.

[0033] (2) be that the curing bath of 55 ℃ carries out solidifying and oiling through the viscose fiber after flame retardant soaking through temperature, the flame retardant DMMP that contains 35g / l in the described curing bath, and the oil agent of 5g / l, in Soak in the curing bath for 15s.

[0034] (3) drying the cured and oiled viscose fibers at a temperature of 125° C. to obtain the flame-retardant viscose fibers.

Embodiment 3

[0036] (1) Alkalinizing, aging, yellowing, dissolving, filtering and degassing wood pulp to obtain viscose spinning solution, and then wet spinning, plasticizing and drawing, desulfurizing and washing viscose fiber, Soak for 18s in the flame retardant soaking solution at a temperature of 42° C.; the flame retardant soaking solution contains 200 g / l of flame retardant DEEP and 5.5 g / l of penetrating agent aryl polyoxyethylene ether.

[0037] (2) be that the curing bath of 40 ℃ carries out solidifying and oiling through the viscose fiber after flame retardant immersion through temperature, the flame retardant DEEP that contains 38g / l in the described curing bath, and the oil agent of 6g / l, in Soak in the curing bath for 22s.

[0038] (3) drying the cured and oiled viscose fiber at a temperature of 128° C. to obtain the flame-retardant viscose fiber.

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Abstract

The invention discloses a method for producing flame-retardant viscose fiber, which comprises the following steps of flame-retardant finishing: (1) flame-retardant soaking: soaking the viscose fiber after desulfurization and water washing in the flame-retardant soaking solution for 3 to 20 seconds; The flame retardant soaking solution contains a flame retardant and a penetrating agent; the flame retardant is one or a combination of TCEP, DMMP, and DEEP; the penetrating agent is a polyoxyethylene ether compound. (2) Curing and oiling: the viscose fibers soaked in flame retardant are cured and oiled through a curing bath, and soaked in the curing bath for 10-30s. (3) drying the cured and oiled viscose fiber to obtain the flame-retardant viscose fiber. The flame-retardant viscose fiber obtained by post-treatment flame-retardant soaking of the present invention has good flame-retardant effect, the combustion limit oxygen index is as high as 30% or more, and the physical and mechanical performance indexes of the fiber are not affected.

Description

technical field [0001] The invention relates to the technical field of modified cellulose fibers, in particular to a flame-retardant viscose fiber. Background technique [0002] Cellulose can be used to make fibers, plastics, films, films, etc., and has a wide range of uses in civil, industrial, medical, national defense, and scientific research. Cellulose resources are unlimited, and it is of long-term and important significance to make full use of this rich resource to develop the cellulose industry. Moreover, regenerated cellulose is as environmentally friendly as natural cellulose, and can be regenerated and naturally degraded. [0003] Viscose fiber is a cellulose fiber obtained by extracting and remodeling fiber molecules from natural wood cellulose using "wood" as a raw material. The hygroscopicity of viscose fiber meets the physiological requirements of the human body. It has the characteristics of smooth and cool, breathable, antistatic, anti-ultraviolet, colorful ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/53D06M13/292D06M13/288D06M101/06
CPCD06M13/288D06M13/292D06M15/53D06M2101/06D06M2200/30
Inventor 叶荣明瞿俊荣刘海洋董帅吕正稳希姗姗周州王法
Owner 赛得利(盐城)纤维有限公司