A kind of high-strength low-elongation viscose fiber and its preparation method and application
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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.
Active Publication Date: 2017-10-03
YIBIN GRACE GROUP CO LTD +2
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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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[0096] The high-strength low-elongation viscose fiber involved in the present invention satisfies:
[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 a high-strength low-elongation viscose fiber and its preparation method and application. The viscose fiber satisfies: the fineness range is between 0.80 and 1.50D, the dry breaking strength is ≥3.20 cN / dtex, and the wet breaking strength is ≥ 1.70cN / dtex, the strength required to produce 5% elongation in wet state is ≥0.60cN / dtex, and the dry elongation at break is 13.0-16.0%, suitable for textile high-twisted fabrics or high-count yarn fabrics. The high-strength and low-elongation 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, and its products not only show the high-strength, low-elongation fiber characteristics of modal fiber , it also shows stronger skin-friendly properties than cotton fibers, which can effectively replace the existing differentiated viscose fibers. While improving the processing performance of viscose fibers in downstream processes, it can also promote the development and industrialization of downstream new textiles upgrade.
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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