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High-strength low-elongation viscose and preparing method thereof

A viscose fiber, high-strength and low-elongation technology is applied in the field of high-strength and low-elongation viscose fiber and its preparation, which can solve problems such as high cost and achieve the effects of improving brittleness, increasing fiber water absorption rate, and improving elongation.

Inactive Publication Date: 2015-08-12
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 low-elongation viscose and preparing method thereof
  • High-strength low-elongation viscose and preparing method thereof
  • High-strength low-elongation viscose and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] The high-strength and low-extension viscose fiber involved in this embodiment is made of pulp raw material after dipping, grinding, squeezing and pulverizing, kneading, depolymerization, yellowing, dissolving, filtering, defoaming, aging, spinning drawing and post-treatment The obtained high-strength and low-stretch viscose fiber meets:

[0095] Dry breaking strength 3.10 cN / dtex, wet breaking strength 1.60 cN / dtex,

[0096] The strength required to produce 5% elongation in the wet state is 0.55cN / dtex,

[0097] Dry elongation at break 11.0%, wet elongation at break 16.0%,

[0098] 40% crystallinity, 22% radial water swelling degree,

[0099] Linear density deviation rate -4%, whiteness 83%,

[0100] Residual sulfur 8.0mg / 100g, length deviation rate +0.5%,

[0101] Super long fiber rate 0%, double long fiber 0mg / 100g,

[0102] Defects 0.5mg / 100g.

Embodiment 2

[0104] The difference between this embodiment and embodiment 1 is that the pulp raw material used in this embodiment is made by mixing cotton pulp, bamboo pulp, wood pulp, and hemp pulp with a mass ratio of 2:1:1:1. After testing, the viscose fiber prepared in this embodiment meets the product characteristics of high-strength and low elongation viscose fiber.

Embodiment 3

[0106] The difference between this embodiment and Embodiment 1 is that the pulp raw material used in this embodiment is made by mixing cotton pulp and bamboo pulp with a mass ratio of 2:1. After testing, the viscose fiber prepared in this embodiment meets the product characteristics of high-strength and low elongation viscose fiber.

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Abstract

The invention discloses high-strength low-elongation viscose and a preparing method thereof. The high-strength low-elongation viscose is made by subjecting pulp material orderly to soaking, grinding, pressing and crushing, rubbing, accumulation reducing, yellowing, dissolving, filtering, defoaming, curing, spin-drawing and post-processing. The high-strength low-elongation viscose has dry break strength not less than 3.10 cN / dtex and wet break strength not less than 1.60cN / dtex, requires strength not less than 0.55cN / dtex at 5% of elongation in the wet state and has the dry elongation at break being 11.0% to 19.0%. The high-strength low-elongation viscose is a novel fiber made by technical innovation, has an index system different from the common viscose and the modal fiber, has the high strength and low elongation features of the modal fibers, has higher skin affinity than cotton fiber and effectively replaces the existing differential viscose, downstream processability of the viscose is improved, and the development and industrial update of the downstream novel textiles is promoted.

Description

Technical field [0001] The invention relates to a high-strength low-stretch viscose fiber and a preparation method thereof, and specifically relates to high-strength low-strength viscose staple fiber varieties and process control of a preparation method thereof, 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 and linen, petroleum-based fiber raw materials represented by polyester, acrylic, etc., and bio-based fibers such as viscose fiber regenerated from natural cellulose materials. Fiber raw materials. At present, with the scarcity of land resources and the shortage of human resources, the area of ​​cotton planting is declining year by year, and cotton products will not be able to meet the increasing needs of people’s living standards; and with the declining oil reserves and pe...

Claims

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Application Information

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IPC IPC(8): D01F2/08D01F11/02D01D5/06D01D5/12D01D10/06
CPCD01D5/06D01D5/12D01D10/06D01F2/08D01F11/02
Inventor 冯涛邓传东李蓉玲贺敏田启兵陈明付陈晓芳张志红
Owner YIBIN GRACE GROUP CO LTD
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