Cotton dyeing process by reactive dye batch method

Cotton dyeing process by reactive dye batch method:

Cotton dyeing by batch method with procion-M

Recipe:

Dyestuff →3% (on product weight)

Salt → 60 g/liter

Soda ash → 15 g/liter

Water → 10 times

Temperature → 40°C

Time → 1 hour

Dyeing process:

Cotton dyeing process by reactive dye batch method. First, the dyestuff is dissolved in a small amount of water. The required amount of water is taken in the dye bath. Then add the dye solution and salt to the dye bath and stir well. In this condition, the product is dyed for 20-30 minutes in the dyebath. Soda ash is then added to the dye bath and the product is re-dyed for 20 to 30 minutes. When the dyeing is finished, the product is first washed with cold water. Then 20% soap solution and 1% soda solution are heated for 30 minutes. Finally, the product is washed and dried. https://bdfabric.com/what-is-the-meaning-of-reactive-dyes/

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Cotton dyeing by batch method with cibacron-E

Recipe:

Dyestuff 4% (on product weight)

Salt → 60 g/liter

Soda ash → 20 g/liter

Water → 15 times

Temperature → 50°C – 90°C

Time→ 1 – 1.5 hours

Dyeing process:

The paste is first made with cold water. Then a solution of dye is made by adding hot water. The dye bath is heated to a temperature of 50°C. The product is then added to the dye bath and the temperature is slowly raised to 60°C. In this condition, half of the salt is added and dyed for 10 minutes. Then add the remaining half of salt and dye for 30 minutes. Now the temperature is raised to 90°C and dyeing is done for 40 to 60 minutes with the help of Soda Ash. The product is then washed first with cold water and then with hot water. Then hot wash is done by heating in soapy water (2 g/liter detergent). Finally, the cloth is washed with cold water and dried.