Mercerized Fabric Dyeing Process For Knitted Fabric Step By Step

Mercerized fabric dyeing Process is a special dyeing process. Here two types of mercerization fabric dyeing processes are available.

  1. One is yearn mercerized fabric process
  2. Another is the Grey mercerized fabric dyeing process

Now we discuss the both mercerized fabric dyeing process. Here the fabric is knitted with mercerized yearn. So that fabric is like bleached fabric. Here I share my experience with this process. I have applied many processes for this fabric and fixed a process. By which we can avoid Unveng dyeing, Running shade and Dye spot, Caustic spot, etc.

Difference between the dyeing process of the yarn and gray mercerized:

Yarn Mercerized= Scouring and bleaching done on yarn dyeing section.

Grey Mercerized= Scouring and bleaching done on knit dyeing section.

Mercerized (Yarn) fabric dyeing Process for knitted fabric:

Process step by step are given below:

Acid+ Sequestering agent + anti creasing agent = Inject

⇓

Fabric Load

⇓

Temperature 70⁰C

⇓

Run time 10 minute

⇓

Drain

⇓

Wash for 10 min

⇓

Detergent +Anticreasing agent= Inject

⇓

Soda dosing 5 minute

⇓

Temperature 80⁰C

⇓

Runtime=20 minute

⇓

Check Absorbency

⇓

Normal Hot Acid

⇓

No Enzyme

⇓

Control Ph=5-6

⇓

Leveling dosing at 60⁰C

⇓

Runtime: 5 minute

⇓

Color dosing 30 minutes (Linear)

⇓

Runtime 10 minute

⇓

Steam Up 80⁰C (Grade=2⁰C/min)

⇓

Runtime 5 Minute

⇓

1st Salt 1/3 Dosing 5 minute

⇓

Runtime 5 minute

⇓

2nd salt 2/3 dosing 5 minute

⇓

Runtime 5 minute

⇓

Full Salt dosing 5 minute

⇓

Runtime 5 minute

⇓

Colling 60⁰C (Grade=2⁰C/min)

⇓

Salt Sample check

⇓

1st Time 10% Soda dosing 15 minutes (70% Progressive dossing)

⇓

Runtime 10 minute

⇓

2nd time 20% Soda dosing 15 minute

⇓

Runtime 10 minute

⇓

Full Soda dosing 10 minute

⇓

Runtime: 10min

⇓

Shade check

⇓

Drain if the shade is ok

⇓

Wash for 10 min

⇓

Normal hot at 80⁰C

⇓

Runtime: 10min

⇓

Drain

⇓

Wash for 10min

⇓

Then soaping agent injects

⇓

Rise temperature 80⁰C (According to shade)

⇓

If shade is ok then Drain

⇓

Wash and clean the water

⇓

Fixing

⇓

Softener (Should not use for navy or black color)

⇓

Unload

Mercerized (Grey) fabric dyeing Process for knitted fabric:

Loading hot

⇓

Full Scouring and Bleaching

⇓

No Enzyme

⇓

Control Ph=5-6

⇓

Leveling dosing at 60⁰C

⇓

Runtime: 5 minute

⇓

Color dosing 30 minutes (Linear)

⇓

Runtime 10 minute

⇓

Steam Up 80⁰C (Grade=2⁰C/min)

⇓

Runtime 5 Minute

⇓

1st Salt 1/3 Dosing 5 minute

⇓

Runtime 5 minute

⇓

2nd salt 2/3 dosing 5 minute

⇓

Runtime 5 minute

⇓

Full Salt dosing 5 minute

⇓

Runtime 5 minute

⇓

Colling 60⁰C (Grade=2⁰C/min)

⇓

Salt Sample check

⇓

1st Time 10% Soda dosing 15 minutes (70% Progressive dossing)

⇓

Runtime 10 minute

⇓

2nd time 20% Soda dosing 15 minute

⇓

Runtime 10 minute

⇓

Full Soda dosing 10 minute

⇓

Runtime: 10min

⇓

Shade check

⇓

Drain if the shade is ok

⇓

Wash for 10 min

⇓

Normal hot at 80⁰C

⇓

Runtime: 10min

⇓

Drain

⇓

Wash for 10min

⇓

Then soaping agent injects

⇓

Rise temperature 80⁰C (According to shade)

⇓

If shade is ok then Drain

⇓

Wash and clean the water

⇓

Fixing

⇓

Softener (Should not use for navy or black color)

⇓

Unload

Conclusion:

This is the special fabric and this is also a special Mercerized fabric dyeing Process. So that you shout follow this process. Many reported factories using this process for better results.

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