RUNGZOL Dyes possess
many salient features, which are summarised below
:-
Very good light and wash fastness.
Easy to apply on cellulosic fibre by normal
exhaust, batchwise, continuous and thermofixation
process.
Suitable for printing by one phase/two
phase application method.
Give brilliant and attractive shades.
Excellent white effect on dyed grounds
by discharge and resist printing method.
Unfixed dyes are easily washed off
High stability in dry state and in neutral
solution.
RUNGZOL
Dyes, unlike most of the Rungactive normal dyes,
possess poor affinity for cellulosic fibres in
the absence of salt and alkali.
The substantivity
of RUNGZOL Dyes can be increased by addition of
Glauber's salt or common salt in dyeing processes.
The fixation of the dyestuff is carried out by
addition of alkali in the dye bath or in the printing
paste and by application of heat or by brief steaming.
The type and quantity of alkali required depends
on the temperature employed and method of fixation.
The entire dyeing or
printing process consists of mainly the following
3 stages:-
