Dyeing Process In Textile-100% Applied Process For Knit Fabric (Updated 2022)

dyeing process in textile

Dyeing is the process of coloring textile fiber. The dyeing process in textile depends on some factors-

  • Fiber type
  • Fabric type
  • Dyes behavior
  • Machine condition
  • Raw materials
  • Shade %

Some common dyeing processes in the textile industry are discussed below. Which is also discussed in my other posts. This process is so effective for the factory level. All the processes are 100% applied processes. So that everyone can use this process to get better production and better quality fabric.

100% cotton fabric Dyeing process in textile:

Cotton is a cellulosic fiber. So that dyeing process will be a reactive dyeing process. Because the reactive dyeing process is widely used in the textile industry. A dyeing process is given below:

Load the fabric

Scouring and bleaching of fabric

Leveling at 40⁰C tem

Salt Dosing 10min

Runtime 5 min

Color Dosing 30min

Runtime 10 minute

Soda Dosing 1g/l 20 minute

Runtime 5 minute

Rest of the Soda 30 minute

Runtime 20 minute

Rise the temperature to 60⁰C

Runtime 15 min

Shade check

If ok the shade according to the requirement

Drain

Aftertreatment

Unload

NB: Dyes% depends on the shade and chemical dosing depends on the supplier’s recommendation.

100% Tencel fiber dyeing process

Tencel is the regenerated cellulose fiber. So that we use her reactive Dyeing process in the textile are discussed below:

Inject lubricating agent and Oil remover

Temp 60⁰C= Fabric Load

Soda Ash Lt Dosing

Temperature 80⁰C*15 Minute run

Drain

Temperature 70⁰C

Sequestering agent + H2O2 Dosing 5 Minute

Runtime 70⁰C*40 Minute

Drain

Normal Hot 70⁰C and 10 min run

Acid 60⁰C*10 Minute

Levelling PH check 6.20

Levelling Dosing 60⁰C 3 Min

Color Dosing 25 Min

Runtime 10 min

Color Dosing 20 min

Runtime 10

1st 10% Salt Dosing 10 Min

Runtime 10 Min

2nd 20% Salt dosing 10 Min

Runtime 10 Min

3rd 70% Salt Dosnig 10 Min

Runtime 10 Min

Salt Sample check

1st 10% Soda dosing 15 minute

Runtime 10 minute

2nd 20% Soda dosing 15 minute

Runtime 10 minute

3rd 70% Soda dosing 15 minute

Runtime 10 minute

Sample check

if ok then

Bath Drain

Hot wash

Soaping

Acid + Enzyme

Unload

100% Nylon Dyeing process

Nylon is a manmade fiber and here we have to use acid dyes. Here we have to create the acid medium

Loading hot with detergent

Leveling (PH 4.50-5.0)

Dyes Dosing 10-minute Temperature 40⁰C

Temperature Increase 98⁰C/1⁰C

Runtime 30 minute

Colling 80⁰C/1⁰C

Shade check

Bath drain

Cold rinse 10 minute

Soaping agent 2g/l (pH5.00 g/l)

Temperature 80*15 minute

Cold wash10 minute

Fixing   2 g/l

Cold water softener 1g/l  (pH 5.00-5.50)

Unload

NB: Dyes% depends on the shade and chemical dosing depends on the supplier’s recommendation.

NATURAL DYEING PROCESS

Natural dyeing is a doda-free dyeing process. As a result, it is eco-friendly and good for human skin. But even dyeing is not possible here.

Scouring

!

Enzyme

!

Leveling 1.00 G/L

!

Salt dosing 15 min

!

Run time 10 min

!

Color  dosing 30⁰C^ 30 min

!

Run time 30 min (take a sample)

!

Rise Temp 80⁰C- 1⁰C per min

!

Run time 45 min

!

Colling

!

Drain

!

Rinse Wash 80⁰C Run= 10 min

!

Cold Wash 

!

Soaping hot 70⁰C Run 10 min

!

Rinse Wash 

!

 Softener

!

Unload

NB: Dyes% depends on the shade and chemical dosing depends on the supplier’s recommendation.

100% Viscose fabric dyeing process:

Viscose is a regenerated cellulose fiber. So that we use here reactive dyeing process. The absorbency of viscose fabric is so higher. Strength is also lower than other cotton fabrics. So the dyeing process of this fabric is so sensitive.

Lubricant + oil remover= sequestering agent= Inject

Temp 40⁰C= Fabric Load

Soda Ash Lt + Multifunctional scouring agent Dosing 5 minute 

Rice the temperature 70⁰C

 H2O2 Dosing 5 Minute

Runtime 80⁰C*40 Minute

Drain

Normal Hot 70⁰C*10

Acid 60⁰C*10 Minute

Leveling Ph check 6.20

Leveling Dosing 60⁰C 3 Minute

Color Dosing 25 Minute

Runtime 10

1st 10% Salt Dosing 10 Minute

Runtime 10 Minute

2nd 20% Salt dosing 10 Minute

Runtime 10 Minute

3rd 70% Salt dosing 10 Minute

Temperature 80⁰C 15 minute 

Colling 60⁰C

Salt Sample check

1st 10% Soda dosing 15 minute

Runtime 10 minute

2nd 20% Soda dosing 15 minute

Runtime 10 minute

3rd 70% Soda dosing 15 minute

Runtime 10 minute

Sample check

Bath drain

Hot wash

Acid 

Unload

NB: Dyes% depends on the shade and chemical dosing depends on the supplier’s recommendation.

Conclusion:

The dyeing process can vary from factory to factory. But the basics of the dyeing process is the same. The stated process can be used by any factory for knit fabric.

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