Cotton Nylon Blend Fabric Dyeing Process Step By Step

Cotton nylon blend fabric dyeing process

The cotton-nylon blend fabric dyeing process is a unique dyeing procedure. 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-bath dyeing processes to make it a 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 have good fastness properties than acid dyes.

In the Cotton nylon blend fabric dyeing process, cotton parts need 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% Cotton 50% Nylon blend knit fabric dyeing process

Step-by-step dyeing processes are given below

The cotton part dyeing process follows

Ctn part dyeing 10%-15% dark BD

Nylon part dyeing

PH 5.0-5.50

 Dyes 3% (according to required shade%)

Rise Temperature to 40⁰C

Color dosing=10 minute


Rise temperature 98⁰C (Grade=1⁰C/minute)

Runtime=30 minute

Colling at 75⁰C

Shade check

If the shade is ok then drain

Wash clear

Soaping agent inject

Rise temperature at 80⁰C

Runtime 15 minute

Shade check

Fixing with a fixing agent at a normal temperature 300c

Check the   pH of 5-5.50

Softener both for cotton and nylon


Cotton nylon blend fabric dyeing process flow chart:


The given Cotton nylon blend fabric dyeing process is the most famous process in the textile industry for knit fabric. Everyone can use it for production. Tips and tricks are given below:

  • The cotton part must have to dye at first.
  • PH must be controlled properly.
  • The depths of cotton color and the depth of nylon color should be the same. On the other hand, a melange effect will happen.

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