Cotton nylon blend fabric dyeing process-for practical use

Cotton nylon blend fabric dyeing process Introduction:

Cotton nylon blend fabric dyeing process is a unique prcedure. For knit fabric dyeing industry is an uncommon dyeing process. Cotton dyeing is an alkaline medium process. Nylon dyeing is an acidic medium dyeing process. On the other hand, cotton needs reactive dyes and nylon needs acid dyes. As a result, is a critical dyeing process.

So that it needs two batch dyeing process to make it solid look. First, we have to dye the cotton part and then we have to dye the nylon part. We can also reverse it. Cotton dyeing at first is a good practice. Because reactive dyes has good fastness properties than acid dyes.

In the Cotton nylon blend fabric dyeing process, cotton parts needs 60⁰c for dye fixup, and nylon needs 98⁰c-100⁰c temperature for bonding. So that at 98⁰c temperature reactive dye can be lighter a little bit. For this reason, we should keep the cotton shade 10% darker than the master shade.

50:50 Cotton nylon blend knit fabric dyeing process- Newest process for practical use:

Step by step dyeing process are given below

scouring with soda ash

No enzyme

Ctn part dyeing 10%-15% dark BD

Normal hot, acid

Europion OS hot 98*10minute

Cold wash

Nylon part dyeing

P^H 5.0-5.50

 Dyes 3% (according to required shade%)

Tempeture 40c color dosing 10 minute  

rice tipmperature 98⁰c/1⁰c

Runtime 30 minute

Colling70⁰c

Shade check

Soaping   agent 2 g/l  and rise 80⁰c

Runtime 15 minute

Shade check

Fixing  with fixing agent at normal temperature 30⁰c

Check the   p^H  5-5.50

Unload

Conclusion:

The given Cotton nylon blend fabric dyeing process is the most famous process for he textile industry for knit fabric. Everyone can use it for production.

viscose fabric dyeing process- for practical use 2021