A kind of anti-fibrillation cellulose fiber and its preparation method

A cellulose fiber and cellulose technology, applied in the field of fiber manufacturing, can solve the problems of unsustainable anti-fiber effects, long processing time, hard and brittle fibers, etc., and achieve the effect of unaffected softness

Active Publication Date: 2021-10-15
潍坊欣龙生物材料有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] (1) The processing temperature is high and the processing time is long;
[0011] (2) It has a great impact on the mechanical properties of the fiber, reducing the mechanical properties such as the breaking strength and elongation of the fiber;
[0012] (3) Ordinary high-temperature cross-linking treatment makes the fiber hard and brittle and loses its original softness;
[0013] (4) The anti-fiber effect is not lasting

Method used

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  • A kind of anti-fibrillation cellulose fiber and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1 A kind of preparation method of anti-fibrillation cellulose fiber

[0045] Include the following steps:

[0046] (1) Preparation of cellulose / polyvinyl alcohol composite fiber

[0047] A. Preparation of polyvinyl alcohol / NMMO solution

[0048]Add polyvinyl alcohol flaky solid into 50wt% NMMO aqueous solution, raise the temperature to 95°C, stir and dissolve, and then remove the water in the solution by vacuum distillation until the water content of the NMMO solution is about 13%, to prepare polyvinyl alcohol. Vinyl alcohol / NMMO solution; the concentration of the polyvinyl alcohol / NMMO solution is 5%.

[0049] B. Preparation of cellulose / NMMO solution

[0050] The cellulose pulp with a polymerization degree of 1000 is activated and pressed to make the water content 10wt%, and the activated cellulose pulp is obtained; the activated cellulose pulp is mixed with the NMMO solution containing 50% water evenly , and then remove the water in the solution by vac...

Embodiment 2

[0066] Embodiment 2 A kind of preparation method of anti-fibrillation cellulose fiber

[0067] Include the following steps:

[0068] (1) Preparation of cellulose / polyvinyl alcohol composite fiber

[0069] Using the preparation method of Example 1, the change is that the mass ratio of the cellulose to polyvinyl alcohol is: 93:7;

[0070] The prepared cellulose / polyvinyl alcohol composite fiber has a polyvinyl alcohol content of 7%.

[0071] (2) heat drying, heat curing

[0072] Immerse the cellulose / polyvinyl alcohol composite fiber in a solution containing a crosslinking agent, react for 15s, and perform heat drying and heat curing treatment; the temperature of the heat drying treatment is 80°C, and the treatment time is 4.5min; The joint temperature is 120°C, and the processing time is 2 minutes.

[0073] The solution containing the crosslinking agent is a mixed solution containing 2wt% crosslinking agent and 0.5wt% catalyst.

[0074] For the solution containing the cros...

Embodiment 3

[0079] Embodiment 3 A kind of preparation method of anti-fibrillation cellulose fiber

[0080] Include the following steps:

[0081] (1) Preparation of cellulose / polyvinyl alcohol composite fibers

[0082] Adopt the preparation method of embodiment 1, change is:

[0083] The mass ratio of described cellulose and polyvinyl alcohol is: 96:4;

[0084] The prepared cellulose / polyvinyl alcohol composite fiber has a polyvinyl alcohol content of 4%.

[0085] (2) heat drying, heat curing

[0086] Immerse the cellulose / polyvinyl alcohol composite fiber in a solution containing a crosslinking agent, react for 20s, and perform heat drying and heat curing treatment; the temperature of the heat drying treatment is 85 ° C, and the treatment time is 4 minutes; heat curing crosslinking The temperature is 140°C, and the treatment time is 3 minutes.

[0087] The solution containing the crosslinking agent is a mixed solution containing 2.5wt% crosslinking agent and 0.3wt% catalyst.

[0088...

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Abstract

The invention relates to an anti-fibrillation cellulose fiber. The anti-fibrillation cellulose fiber is composed of a cellulose / polyvinyl alcohol composite fiber and a cross-linking agent. Fibers have a long-lasting anti-fibrillatory capacity. The invention also provides a preparation method of the anti-fibrillation cellulose fiber. The fiber prepared by the invention has a remarkable anti-fibrillation effect and basically does not affect the mechanical properties of the fiber. The anti-fibrillation cellulose fiber is obtained by co-dissolving cellulose and polyvinyl alcohol to obtain mixed connection and post-treatment to obtain the anti-fibrillation cellulose fiber. The final product is composed of cellulose / polyvinyl alcohol composite fiber solution, and then extruded from the spinneret hole, coagulated, drawn and washed to obtain the fiber, immersed in the solution containing the crosslinking agent, and then subjected to heat drying, heat curing and crosslinking. The cross-linking agent is combined with the composite fiber through chemical bonds, so that the fiber has a long-lasting anti-fibrillation ability.

Description

technical field [0001] The invention belongs to the field of fiber manufacturing, and relates to an anti-fibrillation cellulose fiber and a preparation method thereof. Background technique [0002] The advent of chemical fibers has greatly satisfied people's needs for clothing, decoration and industrial textiles, but with the reduction of oil reserves in the world, the development of synthetic fibers with oil as the main raw material will also be limited. People's focus has turned to renewable textile raw materials, and with people's concern for environmental protection, the development of man-made fibers from renewable natural resources has attracted more and more attention. Cellulose is a sustainable and renewable natural polymer material with abundant content in the world. Its chemical properties are relatively stable, it has good biocompatibility, degradability and regeneration, and it is cheap. Moreover, cellulose fibers have the characteristics of air permeability, mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/02D01F8/10D01F11/00
CPCD01F8/02D01F8/10D01F11/00
Inventor 程筒元伟张玉梅娄善好王乐军刘长军刘怡宁
Owner 潍坊欣龙生物材料有限公司
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