A kind of high-strength viscose fiber and its preparation method and application

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

Active Publication Date: 2017-09-15
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 high-strength viscose fiber and its preparation method and application
  • A kind of high-strength viscose fiber and its preparation method and application
  • A kind of high-strength viscose fiber and its preparation method and application

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Experimental program
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Effect test

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 a high-strength viscose fiber and its preparation method and application. The viscose fiber satisfies the following requirements: the fineness range is between 0.80 and 1.50D, the dry breaking strength is ≥3.15 cN / dtex, and the wet breaking strength is ≥1.70cN / dtex, the strength required to produce 5% elongation in a wet state is ≥0.60cN / dtex, and the dry elongation at break is 15.0-19.0%, suitable for textile high-twist fabrics or high-count yarn fabrics. The high-strength viscose fiber involved in the present invention is a new type of fiber achieved through technological innovation. It has an index system different from ordinary viscose fiber and modal fiber. Its products not only show the fiber characteristics of high strength and low elongation of modal fiber, It also shows a stronger skin-friendly property than cotton fiber, which can effectively replace the existing differentiated viscose fiber. While improving the processing performance of viscose fiber in the downstream process, it can also promote the development of new downstream textiles and industrial upgrading .

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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Patent Type & Authority Patents(China)
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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