Nature of Reactive ‘ME’ Brand
Dyes :
(Bifunctional
Class)
ME BRAND DYES are mixed Bifunctional reactive dyes where Vinyl
Sulfone group is linked to chromophore through a mono chloro triazine group as a
bridge link. They are applicable on cellulosic material at lower dyeing
temperature 600C. The important features of these 'Bifunctional' dyes
are as under:
-
Excellent leveling properties.
-
Good all round fastness properties.
-
These Dyes, which are not fixed during the dyeing process, can be
washed off easily because the hydrolyzed dye has low substantively and thus
there is a little risk of staining of adjacent whites.
-
Bond between Vinylsulfone group and cellulose is stable to acid
hydrolysis; as such stability of dyed goods in industrial acidic atmosphere is
very good even over the period.
-
Better reproducibility in dyeing.
-
High exhaustion and high fixation efficiency.
Bi-functional dyes are applicable on cellulosic materials by dyeing
as well as printing methods.
