Method for rapidly dyeing wool with mordant dyes

A mordant dye and rapid dyeing technology, which is applied in the field of rapid dyeing of wool with mordant dye, can solve the problems of low efficiency and achieve the effects of low temperature, good hand feeling and shortened dyeing time

Active Publication Date: 2011-09-28
JIANGSU DANMAO TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, its dyeing still cannot well overcome the long dyeing time, high energy consumption, and low efficiency.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] In this example, mordant dyes are used to dye Australian wool with a fineness of 18.5um. The process is as follows: the wool balls are put into the dye vat, water is fed, the temperature is raised to 40°C, low-temperature rapid dyeing auxiliaries and mordant dyes are added, and the process is run for 10 minutes. Raise the temperature by 3.0°C / min, raise the temperature to 90°C, keep it warm for 25 minutes, add 1.0g / L acetic acid or formic acid, keep it warm for 20 minutes, add 1.5% of the mass of the hair ball. Adjust the pH value to 3.8, keep it warm for 50 minutes, add 3.0% lotion of the hair ball mass, then add soda ash or soda ash to adjust the pH value to 9.0, keep it warm for 25 minutes, cool the overflow water to 40°C, wash, add acetic acid to neutralize , run for 10 minutes, out of the tank.

[0015] The above-mentioned steps of adding low-temperature fast dyeing auxiliaries and mordant dyes are: add 3.0 g / L of low-temperature accelerator (that is, in the dye va...

Embodiment 2

[0017] In this example, mordant dyes are used to dye Australian wool with a fineness of 17.5um. The process is as follows: put the wool balls into the dye vat, enter water, heat up to 38°C, add low-temperature rapid dyeing auxiliaries and mordant dyes, and run for 5 minutes. Raise the temperature by 2.0°C / min, raise the temperature to 80°C, keep it warm for 30 minutes, add 0.5g / L of acetic acid or formic acid, keep it warm for 10 minutes, add 1.3% of the mass of the hair ball. Adjust the pH value to 3.9, keep it warm for 40 minutes, add soapy lotion: 2.5% of the mass of the hair ball, then add ammonia water or soda ash to adjust the pH value to 8.5, keep it warm for 20 minutes, cool the overflow water to 40°C, wash, add Neutralize with acetic acid, run for 10 minutes, and leave the tank.

[0018] The above-mentioned steps of adding low-temperature rapid dyeing auxiliaries and mordant dyes are: add low-temperature accelerator: 2.0g / L (the mass ratio of sphingomyelin to isomer a...

Embodiment 3

[0020] In this example, mordant dyes are used to dye woolen cloth, and the process is as follows: the cloth is put into a dye vat, fed with water, heated to 35°C, added with low-temperature fast dyeing auxiliaries and mordant dyes, and operated for 15 minutes, with a temperature rise of 1.5°C / min. To 70°C, keep warm for 20 minutes, add acetic acid or formic acid 0g / L, keep warm for 30 minutes, add sodium red alum or potassium red alum: 1.0% of the cloth mass, keep warm for 5 minutes, add formic acid to adjust the pH value to 4.0, keep warm for 30 minutes , add soapy lotion: 2% of the cloth mass, then add ammonia water or soda ash to adjust the pH value to 8, keep warm for 15 minutes, cool down to 40°C with overflow water, wash, add acetic acid to neutralize, run for 10 minutes, and leave cylinder.

[0021] The above-mentioned steps of adding low-temperature fast dyeing auxiliaries and mordant dyes are: add low-temperature accelerator: 1.5g / L (the mass ratio of sphingomyelin to...

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PUM

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Abstract

The invention relates to a method for rapidly dyeing wool with mordant dyes, comprising the following steps: preparing dyeing, adding low-temperature rapid dyeing assistants and dyes, raising temperature rapidly, carrying out dyeing at low temperature, adding mordants and formic acid without lowering temperature, carrying out mordanting at low temperature and carrying out aftertreatment and taking the wool out of the tank. In the invention, rapid temperature raising, lower dyeing temperature and the method of adding mordants without lowering temperature realize low-temperature rapid dyeing with mordant dyes by after-chrome dyeing. Compared with the traditional after-chrome dyeing method with mordant dyes, the method has the following advantages: fiber damage is lowered, the handfeel is good, the luster is bright, the yarn spinnability is improved, the color fastness conforms to the quality requirement of wool top dyeing color fastness and the dyeing time is shortened by 30-50%; and the method greatly reduces water, electricity, steam and labor consumption, improves the labor productivity and conforms to the requirement for low carbon economy.

Description

technical field [0001] The invention relates to the technical field of dyeing wool with mordant dyes, in particular to a low-temperature, fast, energy-saving and efficient method for fast dyeing wool with mordant dyes. Background technique [0002] The dyeing of wool by mordant dyes has uniform color, good color fastness and low dye cost. It is a common dye for dyeing medium and dark wool in wool spinning mills. The most widely used dyeing method is the post media method. However, the currently used mordant dyes are used for post-mordant dyeing of wool, and the heating rate is slow. It needs to be dyed at 98-100°C and mordant at 98-100°C. Large damage, high energy consumption and low efficiency. After searching for the low-temperature dyeing method of mordant dyeing method, the speed is slightly faster. It adopts low-temperature dyeing, but its heating speed is slow, and after dyeing, it is still necessary to cool down and then add mordant and then heat up for mordant dyei...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/36D06P1/44D06L1/12D06P1/642D06P3/20
Inventor 黄晓亮
Owner JIANGSU DANMAO TEXTILE
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