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A kind of enzyme-dyed lyocell fiber fabric and preparation method thereof

A fabric and fiber technology, applied in the field of lyocell fiber, can solve the problems of less technology, high dyeing cost, limited source of raw materials, etc., to achieve good skin-friendly performance and improve quality.

Active Publication Date: 2022-04-22
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these new dyeing technologies have been constantly broken through, due to various reasons, such as: high dyeing costs, limited sources of raw materials, etc., there are relatively few technologies that are really mature and popularized in the market.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • A kind of enzyme-dyed lyocell fiber fabric and preparation method thereof
  • A kind of enzyme-dyed lyocell fiber fabric and preparation method thereof
  • A kind of enzyme-dyed lyocell fiber fabric and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] In this embodiment, an enzyme-dyed lyocell fiber fabric is prepared by the following method, including the following steps:

[0025] (1) Ammonification modification: prepare a mixed solution, immerse 100g lyocell fiber fabric into 1000mL mixed solution, immersion time is 3.5 hours, immersion temperature is 55°C, stir the reaction solution system every 30 minutes after immersion; after the reaction , washed with water, and dried; the preparation method of the mixed solution is as follows: 1000mL concentration of 10% formaldehyde solution, 100mL concentration of 4% ammonia solution and 15g of boric acid are mixed and stirred evenly.

[0026] (2) Enzyme dyeing: 100g of lyocell fabric treated in step (1) is immersed in 1000mL of aqueous solution of laccase and 2,3,4-trihydroxybenzoic acid for cultivation, laccase and 2,3,4 - The concentrations of trihydroxybenzoic acid are: 25mg / L and 150mg / L respectively; the cultivation time is 6.5 hours, and the cultivation temperature i...

Embodiment 2

[0028] In this embodiment, an enzyme-dyed lyocell fiber fabric is prepared by the following method, including the following steps:

[0029] (1) Ammonification modification: prepare a mixed solution, immerse 100g lyocell fiber fabric into 800mL mixed solution, immerse for 3 hours, immerse in a temperature of 50°C, stir the reaction solution system every 30 minutes after immersion; after the reaction , washed with water, and dried; the preparation method of the mixed solution is as follows: 1000 mL of 8% formaldehyde solution, 100 mL of 3% ammonia solution and 20 g of boric acid are mixed and stirred evenly.

[0030] (2) Enzyme dyeing: immerse 100g of lyocell fabric treated in step (1) into 800mL aqueous solution of laccase and p-diphenol for cultivation, the concentrations of laccase and p-diphenol are respectively: 20mg / L, 100mg / L; the cultivation time is 5 hours, and the cultivation temperature is 20°C; after the cultivation, the lyocell fiber fabric is washed with clear wate...

Embodiment 3

[0032] In this embodiment, an enzyme-dyed lyocell fiber fabric is prepared by the following method, including the following steps:

[0033] (1) Ammonification modification: prepare a mixed solution, immerse 100g lyocell fiber fabric into 1200mL mixed solution, immerse for 4 hours, immerse in a temperature of 60°C, stir the reaction solution system every 30 minutes after immersion; after the reaction , washed with water, and dried; the preparation method of the mixed solution is as follows: 1500 mL of 10% formaldehyde solution, 150 mL of 4% ammonia solution and 20 g of boric acid are mixed and stirred evenly.

[0034] (2) Enzyme dyeing: 100g of lyocell fiber fabric treated in step (1) was immersed in 1200mL aqueous solution of laccase and 3-amino-4-hydroxybenzenesulfonic acid for cultivation, laccase and 3-amino-4 The concentrations of -hydroxybenzenesulfonic acid are: 30mg / L and 200mg / L respectively; the cultivation time is 8 hours, and the cultivation temperature is 25°C; aft...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to an enzyme-dyed lyocell fiber fabric and a preparation method thereof. The lyocell fiber fabric is first ammoniated and modified, and then the ammoniated lyocell fiber fabric is treated with laccase and It is cultivated in the environment of organic monomers, and under the action of laccase, the organic monomers are polymerized and grafted to lyocell fiber fabrics. The rubbing fastness and soaping fastness of the enzyme-dyed lyocell fiber fabrics are at a relatively high level. After 20 times of washing, the rubbing fastness and soaping fastness are not significantly reduced. The successful application of enzyme dyeing provides an alternative to dyeing with synthetic dyes. This dyeing method has almost no waste water discharge, which is of great significance to environmental protection and sustainable development of resources.

Description

technical field [0001] The invention belongs to the technical field of lyocell fiber, and in particular relates to an enzyme-dyed lyocell fiber fabric and a preparation method thereof. Background technique [0002] In 2016, the output of regenerated cellulose fiber in China was close to 3.5 million tons, among which the main product viscose fiber faced huge environmental pressure. As the country pays more and more attention to and strictly manages environmental protection, the viscose fiber industry will definitely be impacted. Environmental protection is an urgent problem for the viscose fiber industry to solve. In order to overcome the pollution caused by the production of regenerated cellulose fibers, a new solvent method for the production of regenerated cellulose fibers was born, that is, using N-methylmorpholine-N-oxide (NMMO) as a solvent to directly dissolve wood pulp, Regenerated cellulose fiber—lyocell fiber was prepared by dry jet-wet spinning process. The produ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P3/60D06P1/44D06P5/22
CPCD06P3/6075D06P1/44D06P5/225
Inventor 彭雄义张延陈卓董雄伟刘仰硕王军于泽浩梁永红杨锋
Owner WUHAN TEXTILE UNIV
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