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Ramie rapid degumming technique for producing high quality ramie top

A high-quality and fast technology, applied in textiles and papermaking, chemical post-treatment of fibers, fiber treatment, etc., can solve the problems of high cost of sewage treatment, high energy consumption, large types and quantities of consumption, etc., to save steam and Water consumption, reduced energy consumption, and the effect of increasing height

Inactive Publication Date: 2009-02-04
湖南华升洞庭麻业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. The existing process adopts two high-pressure cooking, which has high energy consumption;
[0006] 2. There are many types and quantities of chemical materials consumed in the existing process, and the cost of sewage treatment is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The choice of fast degumming cooking agent: take 6.0 kg of genetically improved alkaline pectinase, 0.3 kg of sodium acetate, 0.1 kg of magnesium chloride, 1.8 kg of Pingpingjiao, and 1.8 kg of sodium tripolyphosphate. Mix all ingredients well and set aside.

[0022] After the raw hemp is unwrapped, the step of soaking the hemp is carried out immediately, and the hemp is soaked at 50-60° C. for 1.0 hour by using a fast degumming and cooking agent accounting for 1.25 wt % of the total weight of the raw hemp.

[0023] Carry out normal pressure boiling immediately then, under normal pressure condition, with the NaOH aqueous solution of 8g / l, temperature is 100 ℃, boiling 3 hours.

Embodiment 2

[0025] The choice of fast degumming cooking agent: take 6.5 kg of genetically improved alkaline pectinase, 0.4 kg of sodium acetate, 0.15 kg of magnesium chloride, 2.0 kg of Pingpingjiao, and 0.95 kg of sodium tripolyphosphate. Mix all ingredients well and set aside.

[0026] After the raw hemp is unwrapped, the step of soaking the hemp is carried out immediately, and the hemp is soaked at 50-60° C. for 1.0 hour using a quick degumming and cooking agent accounting for 1.5 wt % of the total weight of the raw hemp.

[0027] Carry out normal pressure boiling immediately then, under normal pressure condition, with the NaOH aqueous solution of 6g / l, temperature is 100 ℃, boiling 2.5 hours.

Embodiment 3

[0029] The choice of fast degumming cooking agent: take 6.2 kg of genetically improved alkaline pectinase, 0.35 kg of sodium acetate, 0.12 kg of magnesium chloride, 1.9 kg of Pingpingjiao, and 1.43 kg of sodium tripolyphosphate. Mix all ingredients well and set aside.

[0030] After the raw hemp is unwrapped, the step of soaking the hemp is carried out immediately, and the hemp is soaked at 50-60° C. for 1.5 hours using a quick degumming and cooking agent accounting for 1.0 wt % of the total weight of the raw hemp.

[0031] Carry out atmospheric pressure boiling immediately then, under normal pressure condition, with the NaOH aqueous solution of 10g / l, temperature is 95 ℃, boiling 4 hours.

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Abstract

The invention discloses a ramie quick degumming process in the production of high-quality sesame balls. The ramie quick degumming process comprises the following steps: ramie soaking: quick degumming dier boiling agent accounting for 1.0 weight percent to 1.5 weight percent of the ramie is used to soak the ramie for 1.0h to 1.5h at 50 DEG C to 60 DEG C; boiling at normal pressure: under the condition of normal pressure, 6g / l to 10g / l of NaOH aqueous solution is used to cook for 2h to 4h at 95 DEG C to 100 DEG C; the quick degumming dier boiling agent consists of gene improving alkaline pectase, stabilizer sodium acetate and magnesium chloride, penetrative emulsifier peregal O and trimeric sodium phosphate. The process shortens the technological process, and reduces the pickling procedure, so that the cellulose acidic hydrolysis probability is reduced and the degummed ramie forceful injury is small. The obtained degummed ramie has large break length and little hard thread doubling, is tender and applicable in spinning high grade cotton yarn.

Description

technical field [0001] The invention relates to a ramie preparation process, in particular to a ramie rapid degumming process for producing high-quality hemp balls. Background technique [0002] Ramie degumming has been using the chemical degumming process mainly based on lye scouring, supplemented by phosphate scouring aids, that is, using the difference in chemical stability of cellulose and colloid components in ramie raw hemp to alkali, inorganic acid and oxidant, Through chemical and mechanical action, the glue impurity components in the raw hemp are removed to achieve the purpose of complete degumming and to obtain high-quality dry hemp. However, this process has disadvantages such as long process flow, high energy consumption, large waste water discharge, and high cost of pollution control. [0003] "Ramie Yarn Production Technology and Quality Control" edited by Yu Chongwen, Zhang Yuanming, and Jiang Fanchang (published by China Textile University Press) discloses a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01C1/00
Inventor 荣金莲柳红付力源陈继无尹国强严桂香
Owner 湖南华升洞庭麻业有限公司
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