High-strength colored organic flame-retardant regenerated cellulose fiber and preparation method thereof

A technology of regenerated cellulose and fiber, which is applied in the field of viscose fiber, can solve the problems of attenuation of flame retardant properties of flame retardant fibers, high environmental protection pressure, and high dyeing cost, achieve high temperature resistance and flame retardant effect, reduce environmental pressure, and improve physical properties. The effect of indicators

Active Publication Date: 2016-02-03
潍坊欣龙生物材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The first technical problem to be solved by the present invention is: in view of the current printing and dyeing industry with high environmental protection pressure and high dyeing cost; at the same time, the flame-retardant fiber is attenuated in high-temperature dyeing and difficult to dye, etc., to provide a high physical strength and flame-retardant performance. Good, preparation method of colored flame-retardant viscose fiber with good textile processing performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1) Preparation process of spinning stock solution: using cellulose pulp as raw material, the spinning stock solution is prepared through impregnation, pressing, crushing, aging, yellowing, filtering, aging and degassing.

[0033] 2) Preparation process of flame retardant spinning viscose: organic pyrophosphate is used as flame retardant, polyoxyethylene fatty amine is used as denaturant, and the particle size of color paste is required to be ≤0.5um. Mix evenly, after defoaming and filtering, accurately add into the spinning stock solution through a metering pump, and then pass through a dynamic mixer and a static mixer to fully mix it with the viscose stock solution. The active ingredient of the organic pyrophosphate ester flame retardant is 18wt% relative to the amount of Type A cellulose. Cellulose is 1.8wt%, and the obtained spinning glue consists of: viscose solid content 9.5wt%, viscosity 38s, maturity 15ml (10%NH 4 Cl).

[0034] 3) Spinning process: the black fl...

Embodiment 2

[0040] 1) Preparation process of spinning stock solution: using cellulose pulp as raw material, the spinning stock solution is prepared through impregnation, pressing, crushing, aging, yellowing, filtering, aging and degassing.

[0041] 2) Preparation process of flame retardant spinning viscose: organic pyrophosphate is used as flame retardant, polyoxyethylene fatty amine is used as denaturant, and the particle size of color paste is required to be ≤0.5um. After mixing evenly, defoaming and filtering, it is accurately added to the spinning stock solution through a metering pump, and is fully mixed with the spinning stock solution through a dynamic mixer and a static mixer respectively. The active ingredient of the organic pyrophosphate ester flame retardant is 20wt% relative to the amount of Type A cellulose. Cellulose is 2.0wt%, and the obtained spinning glue consists of: viscose solid content 9.4wt%, viscosity 40s, maturity 16ml (10%NH 4 Cl).

[0042] 3) Spinning process: ...

Embodiment 3

[0048] 1) Preparation process of spinning stock solution: using cellulose pulp as raw material, the spinning stock solution is prepared through impregnation, pressing, crushing, aging, yellowing, filtering, aging and degassing.

[0049] 2) Preparation process of flame retardant spinning viscose: organic pyrophosphate is used as flame retardant, polyoxyethylene fatty amine is used as denaturant, and the particle size of color paste is required to be ≤0.5um. After mixing evenly, defoaming and filtering, it is accurately added to the spinning stock solution through a metering pump, and is fully mixed with the spinning stock solution through a dynamic mixer and a static mixer respectively. The active ingredient of the organic pyrophosphate ester flame retardant is 20wt% relative to the amount of Type A cellulose. Cellulose is 2.0wt%, and the obtained spinning glue consists of: viscose solid content 9.4wt%, viscosity 40s, maturity 16ml (10%NH 4 Cl).

[0050] 3) Spinning process: ...

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Abstract

The invention relates to the technical field of regenerated cellulose fibers, in particular to a preparation method of a high-strength colored organic flame-retardant regenerated cellulose fiber. The preparation steps include the procedure of preparing a spinning solution, the procedure of preparing flame-retardant spinning adhesives, the procedure of spinning, and the procedure of post-processing. In the procedure of preparing the flame-retardant spinning adhesives, flame retardants, denaturants and color paste need to be added after the procedure of preparing the spinning solution, organic pyrophosphate flame retardants are adopted as the flame retardants, polyoxyethylene fatty amine is adopted as the denaturants, and the particle size of the color paste is required to be smaller than or equal to 0.5 micron. The limit oxygen index of the flame-retardant fiber prepared through the method is larger than or equal to 28.0%, the cotton staining grade and the original sample color changing grade of the fiber are both higher than the fourth grade, and the color fastness is good. Environmental protection pressure caused by subsequent dyeing of downstream customers is greatly reduced, and the flame-retardant performance attenuation problem caused by high temperature dyeing is solved. The mode that drying is performed before cutting is adopted for the post-processing procedure, the mixing problem of fibers in different colors is avoided, and production cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of viscose fibers, in particular to a high-strength colored organic flame-retardant viscose fiber and a preparation method thereof. Background technique [0002] Studies have shown that the fire caused by the burning of fiber products has become one of the major disasters in modern society, and the harmful gas released when combustible textiles are burned is much more harmful to the human body than flame-retardant textiles. At present, the flame-retardant fiber products on the market are mainly synthetic fibers, and the melting and dripping of flame-retardant synthetic fibers can easily cause secondary damage; the flame-retardant fiber products themselves include aramid, etc., which have problems such as high price and poor wearing comfort. The promotion and application in the downstream is limited. [0003] With the release of the most stringent new "Environmental Protection Law" in history, the printing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/10D01D10/02D01D10/06
Inventor 刘长军马君志郝连庆吴亚红李昌垒
Owner 潍坊欣龙生物材料有限公司
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