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Production process for cellulose viscose fiber

A technology of cellulose viscose and production process, which is applied in the direction of single-component cellulose rayon, fiber chemical characteristics, textiles and papermaking, etc., can solve the problems of high operating cost, large production area, high price, etc., and achieve The effect of low operating cost, less equipment investment, and small footprint

Active Publication Date: 2013-02-13
XINXIANG CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There is an aging degradation process in the traditional cellulose viscose fiber production process. The equipment used in this degradation process is an aging drum or an aging box. This equipment is bulky, occupies a large production area, is expensive and has high operating costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] The single-line production capacity is 4,000 tons per year, and the amount of cobalt chloride added in the impregnation process is (1.0-2.0)×10 of the mass of cellulose A －4 %, the impregnation temperature is 55±1°C, and the process mixing (mixing different batches of cellulose pulp) of the original production process, crushing, yellowing, dissolving, filtering, aging and spinning does not change. This new process saves the old-fashioned process and old-fashioned equipment, saves equipment investment, production area and energy consumption for the operation of old-fashioned equipment, and the increased cobalt chloride is due to a small amount of addition, and the increase of the impregnation temperature is small (nearly 5 ℃), so the total cost savings are obvious, and the production cycle is shortened. The color of the products produced and the Baidu of the finished products are the same as those of the old process, and the spinnability is normal. The canceled outdated...

Embodiment 2

[0011] The single-line production capacity is 3,000 tons per year, and the mass of cobalt chloride added is (2.0-4.0) × 10 of the mass of cellulose A －4 %, this cobalt chloride is added to the impregnating liquid in the impregnating process, the temperature of the impregnating liquid is 48±1°C, and the air conveying pipeline or leather conveyor is used to replace the original old equipment, while mixing, impregnating, pressing, crushing, yellowing , dissolving, filtering, ripening and spinning do not change, the filter degree of the produced viscose is about 160, the color of the product is normal, and the spinnability is normal.

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PUM

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Abstract

The invention discloses a production process for cellulose viscose fiber. The production process comprises the following working procedures: dross mixing, dipping, squeezing, grinding, yellowing, dissolving, filtering, ripening and spinning, wherein cobalt chloride is added into dipping solution in the working procedure of dipping, with the additive mass of the cobalt chloride being (2.0-4.0)*10-4% of the mass of alpha cellulose and the dipping temperature of 48+ / -1 DEG C or 55+ / -1 DEG C, and a blast pipe or a belt conveyor is adopted for connecting devices for the working procedures of grinding and yellowing. Compared with the prior art, the production process has the remarkable advantages of less equipment investment, small occupied area and low operating cost.

Description

[0001] Technical field: [0002] The invention relates to a cellulose production process, in particular to a cellulose viscose production process. Background technique: [0003] There is an aging degradation process in the traditional cellulose viscose fiber production process. The equipment used in this degradation process is an aging drum or an aging box. This equipment is bulky, occupies a large production area, is expensive and has high operating costs. Invention content: [0004] The purpose of this invention is to provide a kind of production technology of a kind of cellulose viscose fiber with small equipment investment, small occupied area and low operation cost. [0005] The technical solution for realizing the purpose of the present invention is a production process of cellulose viscose fiber, including mixing, dipping, pressing, pulverizing, yellowing, dissolving, filtering, ripening and spinning processes, characterized in that: the dipping Cobalt chloride is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/10
Inventor 司玉莲朱胜涛尹利宾张丽萍邵长金刘东奇姚永新
Owner XINXIANG CHEM FIBER