Dyeing of Silk with Reactive Dyes

This is as per a brochure from CSTRI ( Central Silk Board Bangalore)

Receipe

M:L- 1:30
Dye: X% on the weight of material.
Glauber Salt- 20% of the weight of material ( 1st Stage)
Glauber Salt- 20% of the weight of material (2nd Stage)
Soda Ash- 5% of the weight of material ( 1st Stage)
Soda Ash- 5% on the weight of material (2nd Stage)
Temperature ( Cold Brand)- 50 deg C
Temperature ( Hot Brand) - 60 deg C
pH-9,  Time: 65-75 minutes

 Procedure

Preparation of dye solution:

Dissolve required dye powder in boiling water in a separate beaker/vessel.

Set the dye bath with required quantity of water.
Add dye solution and add 20% Glauber salt and 5% soda ash at 1st stage.
Enter the material and work for 10 minutes.
Add 20% glauber salt and 5% sold ash at 2nd stage and work for 20 minutes.
For Cold brand reactive dyes, work for 45 minutes at 50 deg.
For hot brand reactive dyes, work for 45 minutes at 60 deg.
Take out the material followed by cold wash.
Remove excess water by using hydro extractor.
Dry under shade.


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