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Electrochemical dyeing device and method using yarn dyeing roller as cathode

A yarn dyeing and dyeing device technology, which is applied in dyeing methods, textile material processing, textiles and papermaking, etc., can solve the problems of lack of color fixing devices and unfavorable actual production, etc., so as to improve dyeing efficiency, structure and save resources. Reduce the effect of the stirring device

Inactive Publication Date: 2018-10-12
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the cathode material is usually flake or mesh electrode, which is easy to entangle with the yarn in the dyeing tank, which is not conducive to actual production, and lacks a color fixing device.

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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  • Electrochemical dyeing device and method using yarn dyeing roller as cathode
  • Electrochemical dyeing device and method using yarn dyeing roller as cathode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for dyeing using the above-mentioned electrochemical dyeing device with the yarn dyeing roller as the cathode, which includes the following steps:

[0029] The dye liquor in the dye tank includes the following concentrations of solutes: 0.2mol / L sodium hydroxide, 0.01mol / L iron sulfate, 0.1mol / L triethanolamine, 0.02mol / L vat yellow;

[0030] The anode 5 and the cathode yarn dyeing roller 2 are respectively connected to the positive and negative electrodes of the DC power supply 6, and the current density is controlled to be 0.08-0.1 ampere / square decimeter, and the yarn is wound on the The cathodic yarn dyeing roller 2 is contacted with the dye solution for dyeing, and then the tension adjustment and heat-fixing treatment are carried out through the resistance heating roller 3. The working temperature of the resistance heating roller 3 is controlled at 80-85° C. The yarn roller 4 is connected to the winding device after changing direction, and finally the K / S ...

Embodiment 2

[0032] A method for dyeing using the above-mentioned electrochemical dyeing device with the yarn dyeing roller as the cathode, which includes the following steps:

[0033] The dye solution in the dye tank includes the following concentrations of solutes: 0.1mol / L sodium hydroxide, 0.1mol / L ferric chloride, 0.5mol / L triethanolamine, 0.01mol / L vat red;

[0034] The anode 5 and the cathode yarn dyeing roller 2 are respectively connected to the positive and negative poles of the DC power supply 6, and the current density is controlled to be 0.2-0.5 ampere / square decimeter, and the yarn is wound on the The cathodic yarn dyeing roller 2 is contacted with the dye solution for dyeing, and then the tension adjustment and heat-fixing treatment are carried out through the resistance heating roller 3. The working temperature of the resistance heating roller 3 is controlled at 90-95°C, and finally another guide The yarn roller 4 is connected to the winding device after changing direction, ...

Embodiment 3

[0036] A method for dyeing using the above-mentioned electrochemical dyeing device with the yarn dyeing roller as the cathode, which includes the following steps:

[0037] The dye liquor in the dye tank includes the following concentrations of solutes: 0.1-0.2mol / L sodium hydroxide, 0.5-1mol / L iron sulfate, 1.5-2mol / L triethanolamine, 0.05-0.1mol / L vat green;

[0038] The anode 5 and the cathode yarn dyeing roller 2 are respectively connected to the positive and negative poles of the DC power supply 6, and the current density is controlled to be 0.8-1.2 ampere / square decimeter, and the yarn is wound on the The cathodic yarn dyeing roller 2 is contacted with the dye solution for dyeing, and then the tension adjustment and heat-fixing treatment are carried out through the resistance heating roller 3. The working temperature of the resistance heating roller 3 is controlled at 95-100° C. The yarn roller 4 is connected to the winding device after changing direction, and finally the...

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 electrochemical dyeing device and method using a yarn dyeing roller as a cathode. The dyeing device comprises a dyeing trough, an anode, a cathode yarn dyeing roller and aresistive heating roller, wherein the anode and the cathode yarn dyeing roller are immersed into dyeing liquid in the dyeing trough, the resistive heating roller is arranged outside the dyeing trough,the tension of yarns dyed by the cathode yarn dyeing roller can be adjusted by the resistive heating roller, and thermal fixation treatment is performed. When dyeing is performed by using the device,the current density and the thermal fixation treatment temperature of the resistive heating roller are controlled after power supply contact, and then high-efficiency dyeing can be achieved. The electrochemical dyeing device has the advantages that the yarn dyeing roller serves as a cathode material, dyeing liquid for mass transfer is stirred while dyeing reduction, the electrochemical dyeing device is simpler in structure, saves energy and is high in dyeing efficiency, and the yarn dyeing quality is higher after thermal fixation treatment through the resistive heating roller.

Description

technical field [0001] The invention belongs to the field of vat dyeing, in particular to an electrochemical dyeing device and method using a yarn dyeing roller as a cathode. Background technique [0002] Vat dye is a kind of dye with excellent performance, which has the advantages of complete chromatogram, bright color, high color fastness to soaping and sunlight. However, most vat dyes are insoluble in water, have no affinity for cellulose fibers, and cannot directly dye yarns. At present, the industry adopts the addition of sodium dithionite (sodium dithionite) under alkaline conditions to process vat dyes, so that the dyes can be reduced to soluble leuco bodies to achieve dyeing of yarns or fabrics. However, sodium hydrosulfite is easy to decompose and produces a large amount of dark-colored, highly alkaline, and difficult-to-degrade sulfur wastewater, which will cause serious environmental pollution. [0003] Therefore, in recent years, scholars at home and abroad hav...

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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IPC IPC(8): D06B23/14D06B19/00D06P1/22D06P1/673D06P1/645
CPCD06B19/0076D06B23/14D06P1/22D06P1/645D06P1/6735
Inventor 徐杰徐佳伟熊伟易长海
Owner WUHAN TEXTILE UNIV
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