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Production process for cellulose viscose fiber

A cellulose viscose and production process technology, applied in the field of cellulose production process, can solve the problems of high operating cost, large production area, high price, etc., and achieve low equipment investment, small occupied area, and low operating cost Effect

Active Publication Date: 2014-12-24
XINXIANG CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] 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

[0008] The single-line production capacity is 4000 tons per year, and the amount of cobalt chloride added in the impregnation process is (1.0-2.0)×10 of the quality of cellulose -4 %, the impregnation temperature is 55±1℃, and the original production process is mixed (mixing different batches of A cellulose pulp), crushing, yellowing, dissolving, filtering, maturing and spinning remain unchanged. This new process eliminates the need for old processes and equipment, and saves equipment investment, production area and energy consumption for the operation of old equipment. The added cobalt chloride has a small increase in the impregnation temperature (nearly 5 ℃), so the total cost savings are obvious, and the production cycle is shortened. The color and Baidu of the finished product are the same as the old technology, and the spinnability is normal. The cancelled old equipment is replaced by conventional air ducts or leather transport machines.

Embodiment 2

[0010] The single-line production capacity is 3000 tons per year, and the added quality of cobalt chloride is the quality of methyl cellulose (2.0-4.0)×10 -4 %. This cobalt chloride is added to the dipping solution in the dipping process. The temperature of the dipping solution is 48±1℃. Air conveying pipes or leather conveyors are used to replace the old equipment, and the dregs, dipping, squeezing, crushing, yellowing , Dissolution, filtration, maturation and spinning do not change, the filterability of the viscose produced is about 160, the product color 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

Technical field: [0001] The invention relates to a cellulose production process, in particular to a cellulose viscose fiber production process. Background technique: [0002] The traditional cellulose viscose fiber production process has an old degradation process. The equipment used in this degradation process is an old drum or an old box. This kind of equipment is bulky, occupies a large production area, is expensive and has high operating costs. Summary of the invention: [0003] The purpose of the present invention is to provide a cellulose viscose fiber production process with small equipment investment, small footprint and low operating cost. [0004] The technical solution for achieving the objective of the present invention is a production process of cellulose viscose fiber, including the steps of mixing dregs, dipping, pressing, pulverizing, yellowing, dissolving, filtering, aging and spinning, and is characterized in that: the dipping Cobalt chloride is added to the impr...

Claims

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Application Information

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Patent Type & Authority Patents(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