Process Flow Chart Of Knit Fabric Dyeing With Reactive Dyes

Knit Fabric Dyeing

Knit dyeing is near similar to the yarn dyeing process but there is some difference in quality measurement. Generally, all types of single jersey, double jersey, and their derivatives are dyed in the following way.

Process Flow Chart Of Knit Fabric Dyeing With Reactive Dyes

Here, I have given a discontinuous dyeing process by hot brand reactive dyes. It is a more practical process that is done in the dyeing industry. But the dyeing sequence and chemical brand can be different depending on the choice of the manufacturer. Also, some steps of dyeing can be removed or some steps can be added for better dyeing efficiency. Different dyeing parameter is also important to get better dyeing efficiency.

Fabric received from the batching section

The required amount of water was taken into the machine

The fabric was loaded and run for 5-10 minutes at normal temperature

CK-2, D-600/C, SQ-12UD, and PH-100 (Scouring Chemicals) were added at a time for 5 minutes

Caustic was added at normal temperature for 5 minutes

The temperature increased at 600 C

Hydrogen per Oxide (H2O2) was added for 5 minutes

The temperature increased at 950C and continues for 1 hrs

Sample check

Cold wash at 400C for 5-10 minutes

Hot wash at 950C for 5-10 minutes

The required amount of water was loaded

Adding Croak-N

Adding acetic acid

The temperature increased at 800C for 15-20 minutes

Cold wash at 400C and drain

Filling water and adding Acetic acid

PH check at 4.5

The temperature increased at 550C

Adding The enzyme (Bio-EC) and  run for 1hrs at 550C

Shade check

Cold wash at 400C and drain

Filling required amount of water

The temperature increased at 95-990C for 5-10 minutes

Cold wash at 400C and drain

Adding acetic acid

PH check at 4.5

Adding EDX/200B and C/D-600 at a time

Salt dosing

Color dosing for 30 min

Run for 10 min

Soda dosing for 40 min

Run for 7 min

Temperature increase at 600C for 5 min

Run for 10 min

Shade check (OK)

Rinsing

Filling water at the required amount

Adding PS-60

Temperature increase at 800 C for 10 min

Hot wash at 900 C for 20 min and shade check-in this time (OK)

Rinsing

Filling water at the required amount

Adding acetic acid for neutralization for 10 min

Shade check (ok)

Adding ECO/FRD for 10 min

Rinsing

Filling water at the required amount

PH check at 6.5

Adding (C.W.S) softener

Final shade checks and run for 20 min

Unload the dyed fabric

In sum, various types of dyeing faults can be occurring due to the wrong process. For this reason, the quality control department should be aware of the quality of the fabrics.

6 thoughts on “Process Flow Chart Of Knit Fabric Dyeing With Reactive Dyes”

  1. For further we follow the process chart how to accept our batch duration.
    Dear your process not accessible for production.
    This way good to check chemical only.

    Reply

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