Have you ever wondered the ways in which a fabric is
dyed. The images or the thoughts that comes to your mind is that of
wasteful chemical agents, toxic dye bath liquor that are thrown away
often a source of pollution. A new method has arrived after research
that is called as Electrochemical Dyeing. In the Electro chemical Dyeing
with the vat dyes there is effective and efficient replacement of
environmentally harmful chemical reducing agents with electrons.
The Process of Electrochemical Dyeing involves the following steps.
That is explained here in detail. Here, the reducing agent, instead of
being added as with the typical conventional method is replaced by an
innovative cathodic electron transfer. This is facilitated by a
reversible redox system (mediator). An electrochemical cell is used to
perform the reduction oxidation process. Actually the Dyeing apparatus
is coupled to the Electrochemical cell and the dye bath gets reduced
effectively through electrochemical process. Actually it is the
mediator, that reduces the dye bath after addition of the oxidised
dyestuff. The cathodic reduction enhances the redox potential required
for proper dyestuff reduction. This is an all together new technique in
the range of vat dyeing. The neat combination of the components enables
an almost closed loop in the process of dye bath recycling. Lastly, the
oxidised dyestuff that is left insoluble is eliminated. The
electrochemical dyeing process. Offers the unique concept of reusing the
dissolved mediator system.
Unique
Advantages