Dyestuff industry experts

Disperse TXF Series
Home » Information » Company News » High temperature dyeability of disperse dyes in high temperature and high pressure dyeing

High temperature dyeability of disperse dyes in high temperature and high pressure dyeing

Views: 1009     Author: Site Editor     Publish Time: 2022-04-18      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

i. Coverage: Polyester fibers have undergone various heat treatments during the manufacturing process, resulting in uneven physical structures such as fiber crystallinity, distribution and molecular orientation, resulting in differences in dye uptake, resulting in so-called stripes, warp Shadow. (The property of covering the dyed flowers due to uneven fiber structure is called hiding.

ii. Dyeing migration: It refers to the migration of dyes between fibers due to raising the temperature or adding auxiliaries after the dyes are dyed on the fibers. Dyes with good migration properties are easier to obtain level dyeing, so good or bad migration properties are an important factor for level dyeing. Generally, E-type disperse dyes have good dyeing properties, while S-type disperse dyes have poor dyeing properties.

iii. Dyeing rate

The dyeing process of disperse dyes on polyester fibers is divided into three stages:

a. Disperse dyes diffuse to the fiber surface in a dispersed state or a slightly melted state and a dissolved state.

b. Disperse dyes are adsorbed on the surface of polyester fibers.

c. Disperse dyes diffuse into the polyester fiber.

iv. Promotion rate

When dyeing dark colors, dyes with high lifting rate should be selected, otherwise the utilization rate of dyes will not be high.

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