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High-tenacity and low-elongation viscose fibers, as well as preparation method and application thereof

A viscose fiber, high-strength and low-elongation technology, which is applied in the field of high-strength and low-elongation viscose fiber and its preparation, can solve the problems of high cost and achieve the effects of improved reaction performance, low semi-fiber and high product strength

Active Publication Date: 2015-08-19
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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  • High-tenacity and low-elongation viscose fibers, as well as preparation method and application thereof
  • High-tenacity and low-elongation viscose fibers, as well as preparation method and application thereof
  • High-tenacity and low-elongation viscose fibers, as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0096] The high-strength low-elongation viscose fiber involved in the present invention satisfies:

[0097] Denier 0.80D, dry breaking strength 3.20cN / dtex, wet breaking strength 1.7cN / dtex,

[0098] The strength required to produce 5% elongation in wet state is 0.60cN / dtex,

[0099] Dry elongation at break 13.0%, wet elongation at break 18.0%,

[0100] The crystallinity is 40.0%, the radial water swelling degree is 22%,

[0101] Linear density deviation rate -2%, whiteness 83%,

[0102] Residual sulfur 7.0mg / 100g, length deviation rate +0.5%,

[0103] Super long fiber rate 0%, double long fiber 0mg / 100g,

[0104] Defect 0.5mg / 100g.

Embodiment 2

[0106] The preparation process of the high-strength low-elongation viscose fiber involved in this embodiment has the following steps:

[0107] A: impregnate pulp raw materials with lye, and then grind, squeeze, pulverize and knead to make pulp porridge;

[0108] B: Mix the porridge with lye and send it into the reactor, and obtain alkali cellulose after depolymerization;

[0109] C: using a solvent to dissolve the cellulose sulfonate obtained by the reaction of alkali cellulose and carbon disulfide to obtain a cellulose sulfonate solution;

[0110] D: The cellulose sulfonate solution is filtered, defoamed, and matured to obtain a spinning solution, and then the obtained spinning solution is subjected to spinning, drafting and post-treatment to obtain a high-strength and low-elongation viscose fiber.

Embodiment 3

[0112] The difference between this embodiment and embodiment 2 is that: in the step A involved in this embodiment, the pulp raw material with a degree of polymerization of 650 is soaked in a sodium hydroxide solution with a concentration of 110g / L for 50min, and then ground by a grinder, squeezed, After pulverizing and kneading, it is made into porridge, and the concentration of the porridge is 30%.

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Abstract

The invention discloses high-tenacity and low-elongation viscose fibers, as well as a preparation method and application thereof. The viscose fibers meet requirements of denier range of 0.80 to 1.50D, dry breaking tenacity of more than or equal to 3.20cN / dtex, wet breaking tenacity of more than or equal to 1.70cN / dtex, tenacity of more than or equal to 0.60cN / dtex required by the achievement of elongation of 5 percent in a wet state and dry breaking elongation of 13.0 to 16.0 percent, and is applied to the weaving of a high-twist fabric or a high-count yarn fabric. The high-tenacity and low-elongation viscose fibers belong to a novel fiber variety realized by technological innovation, have an index system different from those of ordinary viscose fibers and modal fibers, have the fiber characteristics of high tenacity and low elongation of the modal fibers and higher skin friendliness of cotton fibers, and can be effectively used instead of the conventional differentiated viscose fibers, the processability of a downstream procedure of the viscose fibers is improved, and in addition, the development and the industrial upgrading of a novel downstream textile can further be promoted.

Description

technical field [0001] The invention relates to a high-strength low-elongation viscose fiber and its preparation method and application, specifically relates to the process control and industrial application of high-strength viscose staple fiber and its preparation method, and belongs to the technical field of viscose staple fiber and cellulose fiber production innovation. 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 aware...

Claims

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Application Information

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IPC IPC(8): D01F2/08D01F11/02D01D5/06D01D5/12D01D10/06
Inventor 冯涛邓传东李蓉玲贺敏李春第陈明付陈晓芳田启兵
Owner YIBIN GRACE GROUP CO LTD
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