Pigment Dyeing of Cotton Fabric

Principle

Dyeing is the distribution process that takes place in the dye bath between dye solution and textile materials. In the pigment dyeing method here, cationic agents are used to fix the dyes on the top of the fabric. Agents like cationic and anionic are used to fix the dyes in the fabric. They provide charges to fix the dyes.

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Apparatus

• Required machine: Padding mangle
• Raw materials: 100% cotton fabric.

Recipe of Pigment Dyeing of Cotton

Chemicals / Parameters	Required Amount
Pigment	x g/L
Wetting agent	3 g/L
Dispersing agent	3 g/L
Cationic agent	x g/L or more than x g/L

Conditions Required

Pickup%	70%
Padder pressure	5 bar
Speed	205 m/min
Pre drying temperature	110℃
Pre drying time	2 minutes
Drying time	3 minutes
Curing temperature	160℃
Curing time	2 minutes

Working Procedure of Pigment Dyeing

1. Cationization is done using a cationic agent, wetting agent, and dispersing agent with the required amount in padding mangle.
2. Then the fabric is dried at 110℃ for 3 minutes.
3. After the drying process, the fabric is dyed with pigment dyes using the required wetting agent, and the dispersing agent at room temperature in a padding mangle.
4. The fabric is pre-dried at 110℃ for 2 minutes.
5. After that, the fabric is dried at 160℃ for 2 minutes.
6. At last, curing is done at 160℃ for 2 minutes.

Pigment Dyeing Working Processes

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