Anti-fibrillation cellulose fibers and preparation method thereof

A cellulose fiber and cellulose technology, applied in the field of fiber manufacturing, can solve the problems of loss of softness, reduction of fiber breaking strength and elongation, long processing time, etc., and achieve long-lasting effects

Active Publication Date: 2019-03-01
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

Method used

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  • Anti-fibrillation cellulose fibers and preparation method thereof

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 fibers

[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 va...

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 fibers

[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 cro...

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 anti-fibrillation cellulose fibers. The anti-fibrillation cellulose fibers are prepared from cellulose/polyvinyl alcohol compound fibers and a cross-linking agent, wherein thecross-linking agent and the compound fibers are bonded through chemical bonds, so that the anti-fibrillation cellulose fibers have durable anti-fibrillation capability. The invention further providesa preparation method of the anti-fibrillation cellulose fibers. The prepared fibers have a significant anti-fibrillation effect, and the mechanical performance of the fibers are not affected substantially. According to the anti-fibrillation cellulose fibers, cellulose and polyvinyl alcohol are dissolved together to obtain blend spinning liquid, and through post-treatment, the anti-fibrillation cellulose fibers are obtained. A final product is formed by squeezing a cellulose/polyvinyl alcohol compound fiber mixed solution out of a spinneret orifice, conducting solidifying, drafting and washingto obtain fibers, immersing the fibers in a solution containing the cross-linking agent, and then conducting thermal drying, thermocuring, thorough washing and drying, and the cross-linking agent andthe compound fibers are bonded through the chemical bonds, so that the anti-fibrillation cellulose fibers have durable anti-fibrillation capability.

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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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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