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A flax roving supercritical CO2 biological enzyme scouring device and scouring method thereof

A supercritical, CO2 technology, applied in the direction of biochemical fiber processing, textile material processing equipment configuration, liquid/gas/steam processing indefinite length textile materials, etc., can solve high pollution, high energy consumption and other problems

Active Publication Date: 2019-01-08
YIXING SUNSHINE LINEN TEXTILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of high pollution and high energy consumption in the flax roving scouring process, the present invention provides a flax roving supercritical CO 2 Biological enzyme scouring device and scouring method

Method used

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  • A flax roving supercritical CO2 biological enzyme scouring device and scouring method thereof
  • A flax roving supercritical CO2 biological enzyme scouring device and scouring method thereof
  • A flax roving supercritical CO2 biological enzyme scouring device and scouring method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. The structure of the scouring kettle used in the following examples is the supercritical carbon dioxide cheese dyeing kettle in the Chinese patent whose publication number is CN102787459A, such as the dyeing kettle structure described in Example 1 in the publication.

[0036] combined with Figure 1-3 , illustrating the supercritical carbon dioxide scouring device and scouring process of the present invention.

[0037] Supercritical carbon dioxide scouring device of the present invention, as figure 1 shown, including CO 2 Tanks, Filters, Blenders, CO 2 booster pump, preheater, heater, scouring kettle, separation kettle, auxiliary solvent tank, liquid delivery pump and magnetic circulation pump, wherein the CO 2 Tanks, Filters, Blenders, CO 2 The booster pump, preheater, scouring kettle, and separation kettle are connected in sequence throug...

Embodiment 2

[0047] According to the supercritical carbon dioxide scouring device and working principle described in embodiment 1, flax roving is scoured, comprising the steps:

[0048] (1) Preparation of biological enzyme scouring agent:

[0049] Dissolve 2% (o.w.f.) hemicellulase in water, and prepare a hemicellulase solution with a concentration of 0.5wt%, to obtain a biological enzyme scouring agent, which is stirred evenly for use;

[0050] (2) 5kg flax roving bobbins are placed in the scouring kettle, and the biological enzyme scouring agent is placed in the cosolvent tank;

[0051] (3) Turn on the refrigeration system, liquid CO 2 in CO 2 The biological enzyme scouring agent in the co-solvent tank is injected into the co-solvent inlet of the blender under the action of the liquid delivery pump, and enters the inlet of the pinhole conveyor through the co-solvent channel, and passes through the pinhole conveyor in the needle The outlet of the hole conveyor flows out, and is mixed w...

Embodiment 3

[0054] According to the supercritical carbon dioxide scouring device and working principle described in embodiment 1, flax roving is scoured, comprising the steps:

[0055] (1) Preparation of biological enzyme scouring agent:

[0056] 5% (o.w.f.) pectinase is dissolved in water, and configured into a pectinase solution with a concentration of 2wt%, to obtain a biological enzyme scouring agent, which is stirred evenly for use;

[0057] (2) 8kg flax roving bobbins are placed in the scouring kettle, and the biological enzyme scouring agent is placed in the cosolvent tank;

[0058] (3) Turn on the refrigeration system, liquid CO 2 in CO 2 The biological enzyme scouring agent in the co-solvent tank is injected into the co-solvent inlet of the blender under the action of the liquid delivery pump, and enters the inlet of the pinhole conveyor through the co-solvent channel, and passes through the pinhole conveyor in the needle The outlet of the hole conveyor flows out, and is mixed...

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Abstract

The invention discloses a flax thick yarn supercritical CO2 biological enzyme scouring device and a scouring method thereof. Flax thick yarn is placed in supercritical CO2 fluid where a biological enzyme scouring agent is dissolved, flax fibers are swollen for 10-30 min at 30-40 DEG C and 8-15 MPa; the flax thick yarn is scoured for 30-60 min under dynamic conditions of a flow velocity of supercritical CO2 at 10-50 g / min at 40-60 DEG C and 15-25 MPa; the flax thick yarn is processed through a scouring-separation combined process for 10-30 min at 40-60 DEG C and 15-25 MPa; after the scouring, the weight loss rate of the flax thick yarn is 6-12%, the residual gum rate is 7-15%, the single fiber breaking strength is 6-13 cN / dtex, and the elongation at break is 4.5-8.5%. The whole scouring process is free of pollution and has zero release, requirements of commercialized production are met, and the modern life idea of fashionable bast fiber spinning and green bast fiber spinning is embodied.

Description

technical field [0001] The invention belongs to the technical field of textiles, and relates to a supercritical CO 2 Biological enzyme scouring device and method thereof. Background technique [0002] Flax fiber is the earliest high-quality plant fiber used by humans, accounting for 1.5% of the total natural fiber. Its chemical composition mainly includes cellulose, hemicellulose, pectin, lignin, waxy and nitrogenous substances, among which hemicellulose, lignin and pectin are difficult to remove, and the crystallinity and orientation degree of flax fiber molecules are relatively high. High, it is easy to affect the elongation, elasticity, clustering, softness and crimp of the fiber, which brings a lot of inconvenience to the flax fiber spinning and weaving process. Therefore, the scouring of flax roving has always been a difficult problem that the hemp spinning industry pays attention to. Over the years, a lot of research work has focused on solving this problem. It was ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06B5/04D06B23/18D06B23/20D06M16/00
Inventor 郑来久张娟高世会郑环达闫俊熊小庆赵虹娟刘秒苏耀华
Owner YIXING SUNSHINE LINEN TEXTILE CO LTD
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