Process Sequence Of Topping For Cotton fabric | Dyes Adding Process

Topping is defined as the addition of color to the fabric after completing one dyeing process. Sometimes it is found that the dyed fabrics do not match with the standard or buyer approved swatch then it needs to re dyeing, this process is called topping. Tipping sequence is near similar as the full dyeing sequence.

Generally, topping is done for the cotton fabric which is dyed by the reactive dyes. Here, I have given a topping process sequence on the cotton fabric which is dyed by the reactive dyes.

Required amount of water filled

Fabric was loaded and run for 10 min.

Drain

Required amount of water filled

Acetic acid was added for 5 min.

Temperature increased at 600 C

Run for 20 min.

Rinsing for 10 min.

Drain

Require amount of water filled

Wetting agent was added

Temperature increased at 950 C

Run for 30 min.

Ringing for 20 min.

Leveling agent added for 10 min.

Salt dosing

Color dosing for 30 min

Run for 10 min

Soda dosing

Run for 1 hrs

Temperature increase at 600C for 5 min

Run for 10 min

Shade check (OK)

Rinsing for 20 min.

Drain

Acetic acid was added for neutralization for 10 min

Shade check (ok)

Hot wash at 700C

Rinsing for 10 min.

Fixing agent was added for 10 min

Rinsing for 10 min.

Water was filled at required amount

PH check at 5.5

Softener was added

Final shade checks and run for 20 min

Unloading the dyed fabric

After completing a dyeing process, shade of the dyed fabrics are checked by the quality control department. If the shade of the dyed goods does not match with the buyers approved swatch then they give decision for topping or stripping.

Topping is an additional process which add extra dyeing cost on the dyeing process. So, a textile engineer should be aware about the dyeing of the fabrics.

2 thoughts on “Process Sequence Of Topping For Cotton fabric | Dyes Adding Process

  1. This site really a great solution for those who are working in textile industry. I surfing so many site for finding such a great site and at last stop here. Really I want to give thanks to the site developer. Great and thanks again, go ahead…

Leave a Reply

Your email address will not be published. Required fields are marked *


*