Dyestuff industry experts

Disperse TXF Series

Home » Information » Industry Encyclopedia » Dyeing of cotton knitted fabric with sulfur dyes

Dyeing of cotton knitted fabric with sulfur dyes

Views: 32     Author: Site Editor     Publish Time: 2021-06-28      Origin: Site


The characteristics of sulfur dyes

1. Sulfur dyes are cheap and easy to apply, suitable for dyeing various products of cellulose fiber.

2. The color of sulfur dyes is not bright, the fastness to chlorine is poor, the chromatogram is incomplete, and the fiber is brittle. The light fastness varies greatly with different varieties. Generally, black is grade 6-7 and blue is 4. -5, yellow orange is 3-4, soaping fastness, most can reach 3-4.


The post-treatment of sulfur dye dyeing

1. Soaping treatment: remove the floating color attached to the fiber surface, improve the color fastness and enhance the vividness of the dyed material.

2. Taikoo oil treatment: The dyed material can be treated with Taikoo oil to improve the shade of the dyed material, especially to increase the vulcanization blackness, and it also has a certain anti-brittle effect.


3. Fixing treatment: Fixing treatment with fixing agent M is commonly used.

4. Anti-brittle treatment: Some dyed products with sulfur dyes will cause brittle lift if placed for a long time, which will seriously reduce the fiber strength. Anti-brittle treatment, usually 0.8-1% urea and 5-5.8% Taikoo oil.

Didn't find what you want?

We look for the best partner to share our product range and our philosophy! Welcome to be our next partner!
You can contact us now and tell us what you need, and we will reply to you immediately.
Contact us



copyright 2020 ©  Hangzhou Tiankun Chem Co.,Ltd 杭州天昆化工有限公司