It is in fact the first of april in Norway today, but I am afraid that it
is you teasing me and not the other way. I am sorry if I have provoked
anyone in any way, but i have used this carbon copy tissue myself in a
colloid (gelatin dichromate) process. It is not a standart procedure I am
using: I coat the copy tissue with dichromated gelatin on the pigment
side.It is exposed in contact with a negative when dry.Then it is placed
gelatin side down on another sheet of paper covered with gelatin and the
two presses together for some time. When the sandvich develops in warm
water, the tissue falls off. The amount of pigment that is absorbed to
dichromated gelatin is in proportion to the exposure. This is similar to a
"dusting on" method. I do all kinds of experiments and work with both
textile and ceramic pigments. The copy tissue I refer to has a pure carbon
pigment, which is the classical pigment for a carbon process. I prepare my
own "carbon tissue" based on other pigments sutable for textiles or
ceramics. But I actually like a direct "dusting on" better, as one can put
on different colors different places. Forgive me if I have not explained it
all very clearly now, but I do know what I am talking about. I will read
the FAQ and compare, I have printed it out. I am working on a book on
unconventional use of old photographic methods, especially applied to other
materials, like textiles, glass, ceramics, concrete etc. I have been
teaching on the subject at the art institutions in Scandinavia during the
last 10 years. I know your books and recommend them to my students. It is
amazing whom one gets to talk to in this way ! Thank you for correcting me,
I should have explained better. Galina.