Lecture 5 dyeing of cotton with reactive dyes

REACTIVE DYES ,[object Object],[object Object],[object Object],[object Object],[object Object]

MODE OF REACTION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

REACTIVE DYES BASED ON TRIAZINE

SCHEMATIC REPRESENTATION OF TRIZINE REACTIVE DYES

REACTIVE DYES BASED ON VINYL SULPHONE

CLASSIFICATION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

MONO FUNCTIONAL REACTIVE DYES ,[object Object],[object Object]

Typical mono functional reactive groups

CLASSIFICATION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

BIFUNCTIONAL REACTIVE DYES CHROMOPH-ORE CHROMOPHORE BRID-GE REACT-IVE GROUP REACT-IVE GROUP

Homo and Hetrobifunctional reactive dyes

DYEING METHODS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

DYEING CONDITIONS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

WASHING OFF AFTER DYEING ,[object Object],[object Object],[object Object],[object Object],[object Object]

AFTER TREATMENT ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

SEMI CONTINUOUS DYEING ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

MERITS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

CONTINUOUS METHODS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

PAD-DRY METHOD ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

PAD-DRY-BAKE METHOD ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

DYEING OF COTTON WITH REACTIVE DYES WORLD FIBRE CONSUMPTION (X1000 tonne) Dye consumption (Tonne) 48500 20500 42% 2200 2400 23400 49% 2000 42600 17300 41% 2000 2500 20700 49% 1996 39300 14900 39% 2000 2700 18700 49% 1990 Total Synthetic wool Regenerated Cotton Year 354 000 290 000 300 000 Total 178 000 109 000 60 000 Reactive 13 000 18 000 28 000 Azoic 12 000 12 000 12 000 Indigo 22 000 21 000 36 000 Vat 68 000 60 000 74 000 Direct 70 000 70 000 90 000 Sulphur 2004 1995 1988 Dye class

SALIENT STATISTICS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Lecture 5 dyeing of cotton with reactive dyes

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Lecture 5 dyeing of cotton with reactive dyes