Melt-resistant flame-proof cellulose viscose and method for making same

A flame-retardant viscose fiber and flame-retardant fiber technology, which is applied in the manufacture of fire-retardant and flame-retardant filaments, can solve the problems of non-degradability, high temperature resistance, easy melting and dripping of fibers, etc. Filtering performance, the effect of improving the flame retardant effect

Inactive Publication Date: 2007-09-19
CHTC HELON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main method for people to prepare flame-retardant viscose fibers is the coating method, that is, after the fiber is made or during the production process (when the fiber is in a gel state), the adhesive that combines the flame retardant with other substances It is coated on the surface of the fiber in latex state. At present, there are flame retardant adhesives combined with polyvinyl chloride latex, polyvinyl bromide latex, chlorinated paraffin or brominated aromatics, and the flame retardant Halogen-containing flame retardants are mostly used, which are non-degradable and have certain pollution after being discarded. Moreover, this kind of flame retardant is not resistant to high temperature, washing and

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Add 20kg of flame retardant DXL1212 emulsion with an effective content of 38.8% into 60L of the yellowing solution, and stir to make it fully mixed to obtain the yellowing solution of the flame retardant; the cellulose pulp is soaked, squeezed, pulverized, After aging and yellowing, the cellulose xanthate is obtained, and then the yellowing solution containing a flame retardant is added to the cellulose xanthate and mixed and stirred to dissolve to obtain a flame-retardant viscose, which is filtered, matured, and defoamed. The mass ratio of cellulose A is 7.06%, the effective content of flame retardant is 23.2% relative to cellulose A, the mass ratio of sodium hydroxide is 6.24%, the viscosity is 39s, and the spinning glue with a maturity of 12ml is passed through the sulfuric acid content of 100g. / L, sodium sulfate 330g / L, zinc sulfate 35g / L, spinning in a coagulation acid bath at a temperature of 38°C, and then stretching to produce 1.5D short fibers, washing the fibe...

Embodiment 2

[0018] Add 6.5 kg of flame retardant NLD-02 emulsion with an effective content of 38.4% into 20L of the yellowing solution, and stir to make it fully mixed to obtain the flame retardant yellowing solution; the cellulose pulp is soaked, Squeeze, pulverize, age, and yellow to obtain cellulose xanthate, then add yellowing solution containing flame retardant to cellulose xanthate, mix and stir to dissolve, and prepare flame-retardant viscose, which is filtered and aged , defoaming to obtain a cellulose content mass ratio of 8.86%, a fire retardant relative to a cellulose effective content mass ratio of 15.4%, a sodium hydroxide content mass ratio of 6.24%, a viscosity of 42s, and a spinning glue with a maturity of 15ml. Spun in a coagulation acid bath with a sulfuric acid content of 115g / L, sodium sulfate 330g / L, zinc sulfate 45g / L, and a temperature of 40°C, and then stretched to produce 3.0D short fibers, which were washed to neutral and desulfurized , dehydration, oiling, and d...

Embodiment 3

[0021] Add 20kg of flame retardant DXL1212 emulsion with an effective content of 38.8% into 60L of the yellowing solution, and stir to make it fully mixed to obtain the yellowing solution of the flame retardant; the cellulose pulp is soaked, squeezed, pulverized, After aging and yellowing, the cellulose xanthate is obtained, and then the yellowing solution containing a flame retardant is added to the cellulose xanthate and mixed and stirred to dissolve to obtain a flame-retardant viscose, which is filtered, matured, and defoamed. Obtain the viscose glue with a cellulose content mass ratio of 7.04%, flame retardant to a cellulose effective content mass ratio of 21.6%, and a sodium hydroxide content mass ratio of 5.44%, and obtain spinning glue through filtration, maturation and deaeration , viscosity 32s, maturity 10ml, spun in a coagulation acid bath with a sulfuric acid content of 120g / L, sodium sulfate 330g / L, zinc sulfate 18g / L, and a temperature of 42°C, and the fibers were...

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Abstract

The invention discloses a anti-melting flameretardant fiber and preparation method thereof. The flame-retardant is added in the dissolving procedure to using production method of viscose fiber, and then processed by mixing, filtration, ripening, debubbling, spinning, refinning, drying, and finished product to produce flameretardant fiber. When burning, the said anti-melting flameretardant fiber will not melt but only carbonize to keeping the original shape of fibre, therefore it prevent high temperature melting drip scalding the people. Furthermore the flame-retardant homogeneously disperses in viscose, and does not smolders and is easy to self extinguish after leaving fire source. The said preparation method is simple and easily operated. The flame retardant property is good, and the disperse of flame-retardant is homogeneous.

Description

technical field [0001] The invention relates to a man-made fiber, in particular to a melt-resistant flame-retardant fiber and a preparation method of the melt-resistant flame-retardant viscose fiber. Background technique [0002] In order to effectively solve the problem of fire prevention in various places, people have adopted various methods. Among them, the use of flame-retardant fibers to prevent and reduce the harm caused by fabric fires is an effective way to prevent disasters in places where fabrics are used. Method, flame retardant viscose fiber is a very common flame retardant fiber that people use at present. At present, the main method for people to prepare flame-retardant viscose fibers is the coating method, that is, after the fiber is made or during the production process (when the fiber is in a gel state), the adhesive that combines the flame retardant with other substances It is coated on the surface of the fiber in latex state. At present, there are flame r...

Claims

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Application Information

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IPC IPC(8): D01F2/10D01F1/07
Inventor 逄奉建马君志王乐军刘建华
Owner CHTC HELON
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