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DYEING PROCESS OF COTTON FABRIC WITH REACTIVE DYES

Dyeing process is the process of giving of colour at textile material equally ( uniformly ).
Cloth result which is desired after process of dyeing was :

1. On Colour horizon
Non happening ” defect ” dyeing like :
–       piebald of fold ( crease-mark / rope mark )
–       piebald of friction ( abrasion mark )
–       white stripe ( chalk mark )

2. Not happened deviation of colour.

3. Fade-proof colour

Following steps are required to Textile material which is required to be dyed to determine quality of dyestuff type and auxilliaries .

High Temperature Fabric Dyeing Machine

In principle mechanism of dyeing process consists of 3 step :

1. Migration dyestuff towards fibre
2. Adsorption molecule dyestuff at surface of fibre
3. Diffusion dyestuff from surface of fibre to fibre interior

To get good dyeing result hence there are 6 important thing which must be taken care of :

1. Hardness of water
2. Chemicals balance ( dyes , auxilliaries , salt , alkali )
3. Liquor Ratio ( comparison of  water with fabric weight )
4. pH dye solution ( beginning of process and phase process of fixation )
5. Dyeing temperature
6. Dyeing time

Woven Dyeing Machine
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