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Tanactive 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 60oC. The main features of these
'Bifunctional' dyes are as under:
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The dye-fibre bond between Vinylsulfone group
and cellulose is stable to acid hydrolysis, so that stability of
dyed goods in industrial acidic atmosphere is very good with the
time lapse.
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The dyes which are not fixed during the dyeing
process can be washed off easily because the hydrolyzed dye has
low substantivity and thus there is a little risk of staining of
adjacent whites.
- Excellent leveling properties.
- Better reproducibility in dyeing.
- High exhaustion and high fixation efficiency.
- Good all round fastness properties.
Bi-functional dyes are applicable on cellulosic
materials by dyeing as well as printing methods.
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