By _monochrome tissues_ one means black, brown, dark green, etc.
_Color tissues_ are the usual YMC (yellow, magenta, cyan). The magenta
and the cyan are the ones to watch for fog. There is a detailed
procedure for this in my _Modern Carbon Processes_
With the "classical" double transfer process (tricolor) and continuous
tone negatives, you only need YMC. With the "modern" version, using
fewer transfers, screened negs (and perhaps undercolor removal) you
need to add a black, so it is a four-color process: YMCK (the "K" is
from blacK; "B" is not used as it could be confused with Blue, which
is the color of the filter used for...)
The German materials had other problems, especially regarding
frilling. There have been a few posts concerning squeegeeing and
rolling and I wish I had enough time to comment on that (it's a long
story!) but not today.
Best, etc.
Luis Nadeau
>
>Claude Seymour
>
>
>
>
>On Thu, 2 Jun 1994, NADO000 wrote:
>
>> >A few years ago visited Dr. Green and he had freezers full of the
>> >Haefstaengl tissues. He was the sole U.S. distributer and was warring
>>
>> The monochrome stuff might still be usable. I wouldn't buy too much of
>> the color material without testing it first.
>>
>> Luis Nadeau
>> >with Haefstaengl because they were selling the tissues mailorder to
>> >anybody within his territory. Dr. Green sells a book hes written on
>> >monochrome and tricolor carbon and carbro. I would recomment it for anyone
>> >interested in the processes.
>> >
>> >Dr. Robert F. Green, M.D.
>> >Gallery 614
>> >0350 R.R. 20
>> >Corunna, Indiana 46730
>> >(219) 281-2752
>> >
>> >Claude Seymour
>> >
>
>
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