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Superfine viscose fiber and preparation method thereof

A viscose fiber and ultra-fine technology, which is applied in the production of viscose staple fiber and cellulose fiber, can solve the problems of high cost and achieve the effects of improved reaction performance, high product strength and high water absorption characteristics

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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  • Superfine viscose fiber and preparation method thereof
  • Superfine viscose fiber and preparation method thereof
  • Superfine viscose fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093] The bright high-strength and low-elongation viscose fiber involved in the present invention is made of pulp raw materials, which are sequentially impregnated, ground, crushed, kneaded, depolymerized with pure oxygen, yellowed, dissolved, filtered, defoamed, matured, and drawn by spinning. After stretching and post-treatment, the viscose fiber meets the requirements of:

[0094] Denier 0.88D, dry breaking strength 3.20 cN / dtex, wet breaking strength 1.60cN / dtex,

[0095] The strength required to produce 5% elongation in wet state is 0.55cN / dtex,

[0096] Dry elongation at break 12.0%, wet elongation at break 18.0%,

[0097] The crystallinity is 40.0%, the radial water swelling degree is 22%,

[0098] Linear density deviation rate -4%, whiteness 83%,

[0099] Residual sulfur 12.0mg / 100g, length deviation rate +0.5%,

[0100] Super long fiber rate 0%, double long fiber 0mg / 100g,

[0101] Defect 0.5mg / 100g.

Embodiment 2

[0103] The difference between this example and Example 1 is that the pulp raw material used in this example is a mixture of cotton pulp, bamboo pulp, wood pulp, and hemp pulp with a mass ratio of 3:1:1:1. After testing, the viscose fiber prepared by this embodiment meets the product characteristics of high-strength and low-elongation viscose fiber.

Embodiment 3

[0105] The difference between this example and Example 1 is that the pulp raw material used in this example is a mixture of cotton pulp and bamboo pulp with a mass ratio of 4:1. After testing, the viscose fiber prepared by this embodiment meets the product characteristics of high-strength and low-elongation viscose fiber.

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Abstract

The invention discloses a superfine viscose fiber and a preparation method thereof. The superfine viscose fiber is prepared by using a pulp material sequentially through impregnation, grinding, pressing and crushing, kneading, pure oxygen reduced polymerization, xanthation, dissolution, filtration, defoaming, ripening, spinning and drawing and post-treatment. The viscose fiber satisfies conditions that the fineness is 0.88 to 1.11D, the dry fracture strength is higher than or equal to 3.20cN / dtex and the wet fracture strength is higher than or equal to 1.60cN / dtex. The high-tenacity low-elongation viscose fiber disclosed by the invention is a novel fiber type realized through technical innovation and has an indicator system different from common viscose fibers and modal fibers, products made by the viscose fibers not only reflect fiber characteristics of high tenacity and low elongation of modal fibers, but also reflect better skin adaptability than cotton fibers, can effectively replace the existing differential viscose fibers and can promote the development and industrial upgrade of downstream novel textiles on the premise of improving the downstream processing performance of the viscose fibers.

Description

technical field [0001] The invention relates to the field of superfine viscose fiber and its preparation method, in particular to the process control of superfine 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 of functionality and environmental protection, more...

Claims

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Application Information

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IPC IPC(8): D01F2/08D01F11/02D01D13/00D01D5/06
Inventor 冯涛邓传东李蓉玲贺敏施洋陈明付陈晓芳
Owner YIBIN GRACE GROUP CO LTD
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