Method for producing viscose fiber from pulp used for papermaking

A viscose fiber and production method technology, applied in the field of viscose fiber production, can solve the problems that cannot be directly used in viscose fiber production, etc., to improve the ability to deal with risks in the raw material market, shorten the production process time, and expand the application field Effect

Inactive Publication Date: 2014-10-22
唐山三友集团兴达化纤有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the pulp used in papermaking in the prior art cannot be directly used in the production of viscose fiber, and to provide a method that can directly use the pulp used in papermaking as a raw material to produce viscose fiber, so as to realize the production of pulp used in papermaking. It is directly used in the production of viscose fiber, and the quality of the produced viscose fiber product meets the requirements of the national standard GB / T14463-2008 or related industry standards

Method used

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with specific embodiments.

[0016] Present embodiment is a kind of production method of producing viscose fiber with papermaking pulp, and this method cancels the aging process, and its production method comprises the following steps:

[0017] a. Dipping:

[0018] Alkali impregnation: use pulp for papermaking as raw material, add lye for impregnation, and impregnate three times. The first impregnation: temperature 45°C, impregnation lye 345g / L, immersion bath ratio 10:1 (lye:pulp weight ratio), V388 addition is 0.5% of the weight of pulp cellulose, and immersion time 25min; The second impregnation: temperature 48°C, impregnating lye 280g / L, immersion bath ratio 10:1 (lye:pulp weight ratio), V388 addition is 0.2% of the weight of the pulp, and immersion time 20min; The third impregnation: temperature 50°C, impregnation lye 225g / L, immersion bath ratio 10:1 (alkali:pulp weight ratio), V388 addition is...

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Abstract

The invention relates to a method for producing a viscose fiber from pulp used for papermaking. The method adopts pulp used for papermaking, prepares a spinning stock solution through alkaline soaking, pressurized soaking, squeezing, yellowing and the like and then prepares the viscose fiber by using a wet spinning method. According to the invention, aging-free process is employed for production of the viscose fiber, and direct usage of papermaking pulp for production of the viscose fiber is realized. The method provided by the invention discards the procedure of aging, shortens process links, is more scientific and reasonable and achieves the purposes of energy conservation and consumption reduction. The viscose fiber produced by using the method has good wearability, good spinnability and better integral usefulness compared with the prior art.

Description

technical field [0001] The invention relates to a production method of viscose fiber, in particular to a method for producing viscose fiber with papermaking pulp as the main raw material. Background technique [0002] The traditional viscose fiber production process uses pulp specially used for viscose fiber production as raw material. Compared with the ordinary papermaking pulp production process, this kind of pulp has higher requirements for process condition control, and the pulp quality requirements can reach those used for viscose fiber production. Requirements for indicators such as degree of polymerization, iron content, viscosity, ash, dust, etc. The use of special pulp for viscose fiber production is not only expensive, but also insufficient in supply. The development of subsequent production capacity cannot meet the development needs of the viscose fiber industry. It cannot meet the requirements of viscose production and cannot be directly applied to viscose fiber...

Claims

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Application Information

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IPC IPC(8): D01F2/06D01F11/02D01D1/02
Inventor 张会平于捍江么志高陈学江高悦杨爱中张浩红赵秀媛尹国彬刘辉陈冲李胜国韦吉伦
Owner 唐山三友集团兴达化纤有限公司
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