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Common cotton black dyeing method

A dyeing method and technology for common cotton, applied in the field of yarn dyeing, can solve the problems of poor color fastness, uneven dyeing, color pattern, etc., and achieve the effect of short production process and reduced energy consumption.

Inactive Publication Date: 2016-11-23
ZHEJIANG ZHONGXIN DYEING & FINISHING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] After the existing common cotton is dyed, its color fastness is poor, and problems such as uneven dyeing and colored flowers are prone to occur

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A black dyeing method for ordinary cotton described in this example, put ordinary cotton into the dye vat, add water and heat up to 40°C, then add auxiliary agent, keep warm for 10min; add dye, keep warm for 10min; Speed ​​up to 65°C, keep warm for 50 minutes; then clean, the temperature is 40°C; add soaping agent, quickly heat up to 98°C, keep warm for 20 minutes, then clean, the temperature is 40°C; add softener and quickly heat up to 40°C , keep warm for 20 minutes, and finally wash it clean and take it out of the tank.

[0013] Described auxiliary agent comprises sodium sulfate, chelating dispersant, alkali, glacial acetic acid, wherein the consumption of sodium sulfate is 150% of the quality of ordinary cotton, the consumption of chelating dispersant is 1% of the quality of general cotton, and the consumption of alkali is 4% of the mass of ordinary cotton, and the dosage of glacial acetic acid is 1% of the mass of ordinary cotton.

[0014] The dyes include reactiv...

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Abstract

The invention relates to the field of yarn dyeing methods, in particular to a common cotton black dyeing method. The common cotton black dyeing method comprises the following steps of putting common cotton into a dyeing vat, adding water, increasing the temperature to 40 DEG C, then adding an additive, and insulating heat for 10min; adding dye, and insulating heat for 10min; increasing the temperature to 65 DEG C at the speed of 1 DEG C / min, and insulating heat for 50min; cleaning, and setting the temperature to 40 DEG C; adding a soaping agent, quickly increasing the temperature to 98 DEG C, insulating heat for 20min, cleaning, and setting the temperature to 40 DEG C; adding a softening agent, quickly increasing the temperature to 40 DEG C, insulating heat for 20min, cleaning, and taking out of the dyeing vat. The common black dyeing method has the advantages that the color fastness of common cotton after dyeing can reach level 3, the non-uniform color is avoided, the production process is relatively short, and the energy consumption is decreased.

Description

technical field [0001] The invention relates to the field of yarn dyeing methods, in particular to a black dyeing method for ordinary cotton. Background technique [0002] After the existing common cotton is dyed, its color fastness is relatively poor, and the problems of uneven dyeing and colored flowers are prone to occur. Contents of the invention [0003] The purpose of the present invention is to provide a kind of good color fastness in order to solve the deficiency of above-mentioned technology, the black dyeing method of common cotton of uniform dyeing. [0004] In order to achieve the above purpose, the black dyeing method of common cotton designed by the present invention is to put common cotton into the dye vat, add water to raise the temperature to 40°C, then add auxiliary agent, keep warm for 10min; add dye, keep warm for 10min; then use Heat up to 65°C at a speed of 1°C / min, keep warm for 50 minutes; then clean, the temperature is 40°C; add soaping agent, qui...

Claims

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Application Information

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IPC IPC(8): D06P3/66D06P1/38D06P1/673D06P1/653D06P5/02
CPCD06P3/66D06P1/38D06P1/6533D06P1/6735D06P5/02
Inventor 马小星施寒江赵德兴姚伟忠吴雪平
Owner ZHEJIANG ZHONGXIN DYEING & FINISHING CO LTD
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