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High-strength viscose fibers and preparation method and application of high-strength viscose fibers

A viscose fiber, high-strength technology, applied in the field of high-strength viscose fiber and its preparation, can solve the problems of high cost and the like, and achieve the effects of improving reaction performance, strong skin affinity, and low semi-fiber

Active Publication Date: 2015-09-09
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-strength viscose fibers and preparation method and application of high-strength viscose fibers
  • High-strength viscose fibers and preparation method and application of high-strength viscose fibers
  • High-strength viscose fibers and preparation method and application of high-strength viscose fibers

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Embodiment

[0096] The high-strength viscose fiber that the present invention relates to satisfies:

[0097] Denier 0.80D, dry breaking strength 3.15cN / 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 15.0%, 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 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 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-strength viscose fibers and a preparation method and application of the high-strength viscose fibers. The high-strength viscose fibers meet the following requirements: the fineness range is between 0.80D and 1.50D, the dry breaking strength is more than or equal to 3.15cN / dtex, the wet breaking strength is more than or equal to 1.70cN / dtex, the strength needed by generation of 5% elongation in a wet state is more than or equal to 0.60cN / dtex, and the dry elongation at break is between 15.0% and 19.0%; the high-strength viscose fibers are suitable for spinning a high-twist fabric and a high-count yarn fabric. The high-strength viscose fibers achieved by technological innovation belong to a new type fiber variety and have an index system which is different from those of common viscose fibers and modal fibers. The high-strength viscose fibers have the characteristics of high strength and secondary low elongation of the modal fibers, also have the higher skin-touching performance than the cotton fibers, can be used for effectively replacing differentiation viscose fibers in the prior art, and can be used for promoting the development of downstream new style textiles and industry upgrade while improving the downstream working procedure processing performance.

Description

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

Claims

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Application Information

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IPC IPC(8): D01F2/08D01F11/02D01D5/08D01D5/12
Inventor 冯涛邓传东李蓉玲贺敏李春第陈明付施洋罗克胜
Owner YIBIN GRACE GROUP CO LTD
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