Classification of Reactive Dyes
by : Rahul Sharma
Classification of Reactive Dyes:
By depending on chemical constitution reactive dyes can be classified as:
- Chlorotriazine Dyes (MCT)
- Vinyl Sulphone Dyes (VS)
- Heterocyclic Helogen Containing Dyes (HHC)
- Mixed Dyes (MCT-VS)
By depending on application methods of temperature, reactive dyes can be classified as :
1. Cold Brand Reactive Dyes: This type of reactive dyes is applied in very low temperature. Temperature lies between 25 - 50 degree Celsius. They are highly reactive with fiber on this temperature.
2. Medium Brand Reactive Dyes: This type of dyes is applied in a medium temperature range is 40 - 60 degree Celsius. Their reactivity is medium with fiber.
3. Low Brand Reactive Dyes: This type of dyes has very loe reactivity properties with fiber with comparison with medium and high brand reactive dyes. Dyeing is carried out on 60 - 90 degree celsius.
