Re: dry pigment for carbon tissue

Luis Nadeau (awef6t@mrburns.mi.net)
Sun, 20 Oct 1996 14:24:29 +0300

..
>She was, on the one hand, encouraged, because it definitely looks better,
>but somewhat anxious about the bubbles. She did, Luis please note, have
>your book on Carbon printing, and followed your method of straining
>through cloth to reduce bubbles, said it helped *a lot* but there were
>still some left.
>
>I said I thought alcohol was anti-bubble, but I had no idea how much to
>add,

very little, e.g., drops

>also Rae Adams suggested Saponin, which we didn't have on hand and I
>believe must be ordered through channels or somewhere specially, and
>Kremer also has something they call "anti-foam" agent, which I'll see if
>they will identify, in case that's OK. Kodak has discontinued its
>anti-foam agent.

like everything else...

>The other question is because now I'm totally confused about to harden or
>not to harden. Sandy says (if I understand him correctly) no never, Klaus
>says he uses Glyoxal... or is that just to harden the gelatine on the
>receiving sheets?

Yes. Then the prints should be washed very gently in several changes of water.

Luis Nadeau
nadeaul@nbnet.nb.ca
Fredericton, New Brunswick, Canada
http://www.mi.net/dialin/awef6t/