Re: Types of Gum? Dyes instead of pigments?
This chap is experimenting to see whether the plant dyes used in anthotypes are reasonably permanent. http://www.alternativephotography.com/articles/art098.html Don Sweet ----- Original Message ----- From: "Christina Z. Anderson" <zphoto@montana.net> To: <alt-photo-process-l@usask.ca> Sent: Wednesday, October 17, 2007 2:40 AM Subject: Re: Types of Gum? Dyes instead of pigments? > Nope, and nope, Jacek. > > However, there are a number on this list doing Temperaprint, or using > gloy...and, of course, gelatin as in carbon printing. Also albumen. > > I don't know why plant dyes wouldn't work if they could be suspended in the > gum, but you'd want to worry about archival colors. Could you test it and > tell us what happens? > Chris > ----- Original Message ----- > From: "Jacek" <gonsaj@iinet.net.au> > To: <alt-photo-process-l@usask.ca> > Sent: Sunday, October 14, 2007 9:13 PM > Subject: Types of Gum? Dyes instead of pigments? > > > > 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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