Dyestuff industry experts

Disperse TXF Series
Home » Information » Company News » Reasons for Excessive pH of Textiles

Reasons for Excessive pH of Textiles

Views: 1103     Author: Site Editor     Publish Time: 2021-06-07      Origin: Site


facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
sharethis sharing button

1. The influence of dyes in production: The commonly used reactive dyes, Shihlin dyes, and sulfur dyes are all produced under alkaline conditions. Even if the cloth surface can be washed well, it will be affected by the pH value of the production water.

2. The influence of the printing and dyeing process: After refining, dyeing, printing and other textiles such as cotton, wool, silk, polyester, nylon, acrylic, etc., the fabrics all have alkalis, acid chemicals and auxiliaries remaining on the fabrics, and there are different pH values , After washing, soaping, acid neutralization, drying and other processes, if the amount of chemical additives is high or the treatment after washing is insufficient, the pH value of the textile will exceed the standard and affect the wearability of the textile.

3. The influence of fabrics: different thickness fabrics affect the pH value of the fabric surface, thin fabrics are easy to wash after dyeing, and the pH value of the fabric surface is low; thick fabrics are relatively difficult to wash after dyeing, and the pH value of the fabric surface is relatively high.

4. The influence of laboratory personnel's operation error: different dry humidity of the tested fabric, different extraction temperature, different extraction time, etc. will affect the measurement result of the pH value of the cloth surface.


Measures to improve textile pH unqualified

1. Acid-base neutralization: neutralization by adding alkali for more acidic, neutralization by adding acid for more alkaline, generally used acid is acetic acid or citric acid, and alkali is soda ash.

2. Improvement of dyeing and finishing process: increase water washing, etc. Choose high-quality raw materials, dyes, etc., and eliminate them from the source.

Related Articles

content is empty!

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