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A kind of extinction superfine high-strength and low-stretch viscose fiber and preparation method thereof

A high-strength, low-elongation, viscose fiber technology, which is applied in the field of textile fiber processing, can solve the problems of high cost and achieve the effects of improving brittleness, high elongation and fiber strength

Active Publication Date: 2018-02-27
YIBIN GRACE GROUP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high cost of modal fiber textile technology, the modal in the market is basically a blend of modal and cotton, or directly use viscose (rayon) fiber to pretend to be modal

Method used

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  • A kind of extinction superfine high-strength and low-stretch viscose fiber and preparation method thereof
  • A kind of extinction superfine high-strength and low-stretch viscose fiber and preparation method thereof
  • A kind of extinction superfine high-strength and low-stretch viscose fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0098] The matting superfine high-strength and low-elongation viscose fiber involved in this embodiment is made of pulp raw materials sequentially through impregnation, grinding, crushing, kneading, depolymerization, yellowing, dissolution, filtration, defoaming, aging, and spinning. Obtained after stretching and post-treatment, the high-strength low-stretch viscose fiber meets:

[0099]Denier 0.8~1.11 dtex;

[0100] Dry breaking strength ≥ 3.10 cN / dtex;

[0101] Wet breaking strength ≥ 1.60cN / dtex;

[0102] The strength required to produce 5% elongation in wet state is ≥0.55cN / dtex,

[0103] Dry elongation at break 11.0~19.0%;

[0104] Wet elongation at break 16.0~21.0%;

[0105] The radial water swelling degree is 22-26%;

[0106] The content of matting agent is 0.8-5%.

Embodiment 2

[0108] The difference between this embodiment and Embodiment 1 is that the extinction superfine high-strength low-elongation viscose fiber involved in this embodiment also satisfies:

[0109] Whiteness ≥ 85%;

[0110] Linear density deviation rate≤±11.0%;

[0111] Residual sulfur≤12.0mg / 100g;

[0112] Length deviation rate≤±11.0%;

[0113] Ultra-long fiber rate ≤ 0.5%;

[0114] Double-length fiber≤4.0mg / 100g;

[0115] Defect ≤ 4.0mg / 100g.

Embodiment 3

[0117] A preparation method of matting superfine high-strength low-elongation viscose fiber, the steps are as follows:

[0118] A: Immerse the pulp raw material in an immersion barrel filled with lye, and grind it with a grinder to make a pulp porridge with a concentration of 3%;

[0119] B: Send the pulp porridge prepared in step A to a press machine, and then send it to a pulverizer for crushing to obtain alkali cellulose, send the alkali cellulose to a kneading machine, and obtain a pulp porridge with a concentration of 30% after processing ;

[0120] C: Mix the porridge prepared in step B with lye and send it to the reactor, add pure oxygen to the reactor, and obtain alkali cellulose with a polymerization degree of 400 and a cellulose purity of 98.0% after depolymerization;

[0121] D: The alkali cellulose prepared in step C is sent to the yellowing machine, carbon disulfide is added in the yellowing machine, and after the yellowing reaction, the cellulose sulfonate obtai...

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Abstract

The invention discloses a matting superfine viscose fiber with high strength and low elongation, which belongs to the technical field of textile fiber processing. It is obtained by impregnating, grinding, crushing, kneading, reducing polymerization, yellowing, dissolving, filtering, defoaming, ripening, spinning and drawing and post-treatment of pulp raw materials in sequence. The viscose fiber described in the present invention It has the following technical indicators: fineness 0.8~1.11dtex; dry breaking strength ≥ 3.10 cN / dtex; wet breaking strength ≥ 1.60cN / dtex; strength required to produce 5% elongation in wet state ≥ 0.55cN / dtex, dry breaking Elongation 11.0-19.0%; wet elongation at break 16.0-21.0%; crystallinity 40.0-45.0%; radial water swelling 22-26%; matting agent content 0.8-5%. The viscose fiber of the invention is a new type of viscose fiber, and the production cost is lower than that of the existing modal, and has good economic and social benefits.

Description

technical field [0001] The invention relates to viscose fiber and its preparation, in particular to a matting superfine high-strength and low-elongation viscose fiber and a preparation method thereof, belonging to the technical field of textile fiber processing. Background technique [0002] At present, textile fiber raw materials are mainly divided into natural fiber raw materials represented by cotton, hemp, etc., petroleum-based fiber raw materials represented by polyester, acrylic fiber, etc., and bio-based raw materials such as viscose fiber regenerated from natural cellulose materials. Fiber raw material. At present, with the scarcity of land resources and the shortage of human resources, the cotton planting area is declining year by year, and cotton products will not be able to meet the growing needs of people's living standards; With the increasing awareness of functionality and environmental protection, more and more attention has been paid to viscose fibers produc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F2/06D01F2/12D01F11/02C08B1/08C08B1/10D01D5/06D01D5/12D01D10/06
Inventor 冯涛邓传东李蓉玲贺敏田启兵陈明付陈晓芳李春弟
Owner YIBIN GRACE GROUP CO LTD
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