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A method of supercritical carbon dioxide enzymatic cooking, bleaching and dyeing of hemp roving

A carbon dioxide and supercritical technology, applied in dyeing, enzyme/microbial biochemical treatment, plant fiber, etc., can solve the problems of high water consumption, hemp fiber roving boiling and bleaching, and high pollution in the dyeing process

Active Publication Date: 2019-10-22
宁夏舜昌亚麻纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of high pollution and high water consumption in the scalding, bleaching and dyeing process of hemp fiber roving, the present invention provides an integrated method of supercritical carbon dioxide bioenzyme cooking, bleaching and dyeing of hemp roving. Clean cooking, bleaching and dyeing production; at the same time, under the supercritical state, complete the one-step continuous completion of the hemp fiber cooking, bleaching and dyeing processes, which can not only significantly shorten the time spent in the cooking, bleaching and dyeing processes, but also reduce the energy consumption of the entire process , which solves the problems of high pollution and high energy consumption in the boiling, bleaching and dyeing process of hemp roving

Method used

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  • A method of supercritical carbon dioxide enzymatic cooking, bleaching and dyeing of hemp roving
  • A method of supercritical carbon dioxide enzymatic cooking, bleaching and dyeing of hemp roving
  • A method of supercritical carbon dioxide enzymatic cooking, bleaching and dyeing of hemp roving

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Experimental program
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Effect test

Embodiment 1

[0087]Hemicellulase, pectinase and glucose oxidase were purchased from Jiangsu Ruiyang Biotechnology Co., Ltd. Hemicellulase: activity ≥ 20000U / g, applicable pH value 4.0-5.5, optimal pH value 4.5-5, applicable temperature 30-60℃, the best temperature is 45-50℃; pectinase: activity ≥ 10000U / g, suitable pH value is 3.5-6.5, the best pH value is 5.5-6, suitable temperature is 45-65℃, the best temperature is 50- 55°C; Glucose oxidase: activity ≥300U / g, applicable pH value 4.0-5.5, optimum pH value 3.5-6.5, applicable temperature 20-70°C, optimum temperature 50-55°C. Prepare hemicellulase, pectinase, and glucose oxidase in a ratio of 1:1:1 to form a compound biological enzyme solution with a concentration of 1%, stir evenly and set aside.

[0088] Put 10kg flax roving, 1% (o.w.f.) of disperse dye and 1% compound biological enzyme solution into supercritical carbon dioxide cooking, bleaching and dyeing kettle 16, 17, dye kettle 15 and co-solvent tank 10 in sequence; open gas storag...

Embodiment 2

[0092] Hemicellulase, pectinase and glucose oxidase were purchased from Jiangsu Ruiyang Biotechnology Co., Ltd. Hemicellulase: activity ≥ 20000U / g, applicable pH value 4.0-5.5, optimal pH value 4.5-5, applicable temperature 30-60℃, the best temperature is 45-50℃; pectinase: activity ≥ 10000U / g, suitable pH value is 3.5-6.5, the best pH value is 5.5-6, suitable temperature is 45-65℃, the best temperature is 50- 55°C; Glucose oxidase: activity ≥300U / g, applicable pH value 4.0-5.5, optimum pH value 3.5-6.5, applicable temperature 20-70°C, optimum temperature 50-55°C. Prepare hemicellulase, pectinase, and glucose oxidase in a ratio of 1:1:3 to form a compound biological enzyme solution with a concentration of 4%, stir evenly and set aside.

[0093] Put 15kg ramie roving, 2% (o.w.f.) of reactive disperse dyes and 4% compound biological enzyme solution into supercritical carbon dioxide cooking, bleaching and dyeing kettle 16, 17, dye kettle 15 and co-solvent tank 10 successively; op...

Embodiment 3

[0097] Hemicellulase, pectinase and glucose oxidase were purchased from Jiangsu Ruiyang Biotechnology Co., Ltd. Hemicellulase: activity ≥ 20000U / g, applicable pH value 4.0-5.5, optimal pH value 4.5-5, applicable temperature 30-60℃, the best temperature is 45-50℃; pectinase: activity ≥ 10000U / g, suitable pH value is 3.5-6.5, the best pH value is 5.5-6, suitable temperature is 45-65℃, the best temperature is 50- 55°C; Glucose oxidase: activity ≥300U / g, applicable pH value 4.0-5.5, optimum pH value 3.5-6.5, applicable temperature 20-70°C, optimum temperature 50-55°C. Prepare hemicellulase, pectinase, and glucose oxidase in a ratio of 1:2:3 to form a compound biological enzyme solution with a concentration of 3%, stir evenly and set aside.

[0098] Put 20kg hemp roving, reactive dye 1.5% (o.w.f.) and concentration 3% compound biological enzyme solution into supercritical carbon dioxide cooking, bleaching and dyeing kettle 16, 17, dye kettle 15 and co-solvent tank 10 successively; ...

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Abstract

The invention relates to a supercritical carbon dioxide biological enzymatic cooking, bleaching and dyeing method of hemp roving, which belongs to the field of textiles. A kind of supercritical carbon dioxide biological enzymatic boiling and dyeing method of hemp roving, the auxiliary agent used in the decoction and bleaching-separation process is a biological enzyme decoction bleaching agent, and the biological enzyme decoction bleaching agent is based on the weight (o.w.f.) of hemp roving quality (o.w.f.) In terms of percentage, it consists of the following components: 0.2-3% of hemicellulase, 0.2-5% of pectinase and 0.2-3% of glucose oxidase. The whole process of the roving supercritical carbon dioxide bio-enzymatic cooking, bleaching and dyeing integrated method of the present invention has no pollution and zero discharge, meets the development requirements of low-carbon economy, and embodies the modern life concept of fashionable hemp spinning and green hemp spinning.

Description

technical field [0001] The invention relates to a supercritical carbon dioxide biological enzymatic cooking, bleaching and dyeing method of hemp roving, which belongs to the field of textiles. Background technique [0002] Hemp fiber is the earliest high-quality plant fiber used by humans. Its chemical composition mainly includes cellulose, hemicellulose, pectin, lignin, waxy and nitrogenous substances, among which hemicellulose, lignin and pectin are difficult to remove. Moreover, the crystallinity and orientation of the hemp fiber molecules are relatively high, which is easy to affect the elongation, elasticity, bundling, softness and crimp of the fibers, which brings a lot of inconvenience to the hemp fiber spinning and weaving process. Therefore, the boiling, bleaching and dyeing of hemp roving has always been a problem of concern to the hemp spinning industry. Over the years, a lot of research work has focused on solving this problem. It was not until the late 1950s th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/94D06P3/60D06P3/66D06P3/62D06P1/16D06P1/38D06P1/44D06L4/40D06M16/00D06M23/06D06B9/06D06B9/02D06M101/06
CPCD06B9/02D06B9/06D06M16/003D06M23/06D06M2101/06D06P1/445D06P1/94D06P3/6033D06P3/62D06P3/66D06B19/00D06B23/205
Inventor 郑来久张娟郑环达高世会杜冰闫俊刘秒苏耀华
Owner 宁夏舜昌亚麻纺织科技有限公司
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