Unlock instant, AI-driven research and patent intelligence for your innovation.

Linen fiber biologic dyeing process based on laccase catalysis polymerization color generation reaction

A catalytic polymerization and biological dyeing technology, which is applied in the field of hemp fiber biological dyeing process, can solve the problems of high water consumption and energy consumption, high requirements for dyeing conditions, complex dyeing process, etc., and achieve high selectivity, environmental friendliness, and mild treatment conditions. Effect

Inactive Publication Date: 2014-07-30
JIANGNAN UNIV
View PDF5 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention can reduce the dyeing energy consumption of hemp fiber, shorten the dyeing process, solve the technical problems of high dyeing conditions, complicated dyeing process, high water consumption and energy consumption of the traditional dyeing method, and realize the purpose of green dyeing and finishing processing

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Linen fiber biologic dyeing process based on laccase catalysis polymerization color generation reaction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Sample species: linen fabric.

[0024] Prepare NaOH20g / L, Na 2 SiO 4 2g / L and JFC2g / L lye, put into the linen fabric, the bath ratio is 1:30, and treat it in a 95°C constant temperature water bath for 1.5h, take it out, wash it with 50°C hot water for 2-3 times, and then use 3g / L Treat with dilute acetic acid solution for 30 minutes, and finally wash thoroughly with clean water, and dry at 60°C for later use.

[0025] Get the linen fabric that has been treated with the above-mentioned alkali, and join in the acetic acid-sodium acetate buffer solution containing catechol monomer and laccase, pH5.0 (the dosage of laccase is 100U / L, the consumption of catechol monomer 25mmol / L), bath ratio 1:50, react at a constant temperature of 50°C for 5h, fix the color at a high temperature of 90°C for 30min, fully wash with water, and dry at 70°C.

[0026] After the above process, the linen fabric obtains a dark brown cloth surface dyeing effect, the K / S value increases by 6.64, th...

Embodiment 2

[0028] Sample species: jute fabric

[0029] Prepare NaOH20g / L, Na 2 SiO 4 2g / L and JFC2g / L lye, put into the linen fabric, bath ratio 1:30, treat in 90°C constant temperature water bath for 2.0h, take it out, wash it with 60°C hot water for 2-3 times, and then use 2g / L Treat with dilute acetic acid solution for 20 minutes, and finally wash thoroughly with clean water, and dry at 50°C for later use.

[0030] Get the jute fabric through above-mentioned alkali treatment, join in the acetic acid-sodium acetate buffer solution that contains hydroquinone monomer and laccase, pH5.0 (the consumption of laccase is 100U / L, the consumption of hydroquinone monomer 25mmol / L), bath ratio 1:50, react at a constant temperature of 50°C for 5h, fix the color at a high temperature of 90°C for 30min, fully wash with water, and dry at 70°C.

[0031] After the above process, the jute fabric obtains deep wine red cloth surface dyeing effect, the K / S value increases by 7.15, the color fastness to ...

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a linen fiber biologic dyeing process based on laccase catalysis polymerization color generation reaction, which belongs to the technical field of application of linen fiber dyeing and finishing processing in the linen spinning industry. The process organically combines laccase catalysis colorless micromolecule phenol monomer polymerization color generation and linen fiber dyeing, and aims at reducing the energy consumption in dyeing linen fibers, shorting the procedures of the dyeing process, solving the technical problems that a conventional dyeing method is high in dyeing condition requirement, the dyeing process is complex, the water and energy consumption is high and the like, and achieving the biologic method dyeing of the linen fibers by utilizing the efficiency and the cleanliness of the laccase catalysis polymerization color generation reaction. The process comprises the following steps: treating the linen fibers in sodium hydroxide solution and sodium silicate solution with certain concentrations for a period of time, washing in water, neutralizing by acetic acid, drying, subsequently adding into a buffer solution with phenol monomers and laccase, reacting for a period of time at certain temperature to polymerize the phenol monomers to form a colored high-molecular polymer which is combined with the linen fibers, performing high temperature color fixation and enzyme inactivation treatment, washing in water and drying. The process can replace the conventional dyeing method to realize biologic method dyeing of the linen fibers.

Description

technical field [0001] The invention discloses a hemp fiber biological dyeing process based on laccase-catalyzed polymerization color reaction, which belongs to the application technical field of hemp fiber dyeing and finishing in the hemp textile industry. Background technique [0002] In recent years, with the increasingly stringent environmental protection regulations at home and abroad, the clean dyeing and processing of various fibers has received high attention. Traditional dyeing methods and theories based on small molecule synthetic dyes face many challenges, mainly reflected in: complex preparation process of synthetic dyes, large environmental pollution; high requirements for dyeing conditions (often requiring harsh pH value and high temperature), complex dyeing process, and water consumption. High energy consumption and difficult treatment of dyeing wastewater. Commonly used dyes have low molecular weight, dyed products have poor rubbing fastness, low tinting str...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/66D06P1/38D06P1/673D06P5/22
Inventor 王强范雪荣白茹冰王平崔莉袁久刚孙雪蛟
Owner JIANGNAN UNIV