Re: Types of Gum? Dyes instead of pigments?
Hi Jacek,
The points are all very interesting and worth asking.
Sounds like you have your job cut out for you in testing and finding
the answers, since I don't think they are easy to answer without
"elbow grease", the hard work of trying them out in somewhat
controlled environment.
Good luck. And please let us know about your results.
Sam Wang
On Oct 14, 2007, at 11:13 PM, Jacek wrote:
Hi all,
I was wondering if anyone used another form of a binder in Gum
Bichromate printing. Most of the sources I've read have all used
Gum Arabic, though there are many other that exist Gum
tragacanth,Guar Gum, Locust Bean Gum, Tara Gum, Xanthan Gum etc.
Perhaps a different gum might hold more pigment or give another
aesthetic result?
Other than using watercolour pigments, has anyone tried using dyes?
I presume that a pigment is a insoluble powder, when using gum and
exposing to light the pigment is trapped, where a dye used perhaps
the gum can't trap the soluble liquid? Though is it possible to
take a dye and make it into a pigment? Silly question perhaps? :) I
had this idea to use plant dyes for my colours, wondering if its
feasible or not?
Cheers
Jacek
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