Dyestuff industry experts

ITMA AISA 2024
Home » Information » Industry Encyclopedia » Color fastness to water and perspiration

Color fastness to water and perspiration

Views: 1016     Author: Site Editor     Publish Time: 2022-02-05      Origin: Site

Inquire

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. Test method for color fastness to water and perspiration

The color fastness to water reflects the discoloration of the textile itself and the staining of the lining fabric under the combined action of certain moisture, pressure and temperature. During the test, after the sample and the backing fabric are fully soaked, put it in an oven at a certain temperature for a certain period of time under a certain pressure, take it out to dry, and evaluate the discoloration and staining grade. The discoloration and staining grades are divided into 5 grades, 5 is the best and 1 is the worst.



The color fastness to perspiration reflects the discoloration of the textile itself and the staining of the lining fabric under the combined action of pressure and temperature in different test solutions containing histidine. The discoloration of the sample and the staining of the lining fabric were evaluated with a gray card, and the results were divided into 5 grades, with 5 being the best and 1 the worst.



2. Ways to improve color fastness to water and perspiration

To improve the color fastness of fabrics to water and perspiration, the most important way is to choose dyes reasonably, especially dyes with high fixation rate and good stability. Reasonably formulate and control the dyeing process, strengthen the fixing conditions, and form a covalent bond with high stability, so that the dye can be fully fixed. For example, when dyeing dyes with poor reactivity, a catalyst can be used, or an appropriate fixing agent can be used, or the color can be fixed at a relatively high temperature.



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

QUICK LINKS

APPLICATIONS

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