Sandy King (sanking@hubcap.clemson.edu)
Tue, 27 Jul 1999 20:47:44 -0400
Tod Gangler wrote:
>Double transfer printing involves processing the pigment emulsion on a
>sheet of plexiglass, vinyl or prepared mylar. These materials exhibit
>great dimensional stability, so successive emulsions may be built up one at
>a time, and in precise registration for color work, for example. The
>completed image of many emulsion layers is then transfered to a sheet of
>receiving paper. This paper must have a soft gelatin size coating to
>receive the relief of the image, and this finished print does exhibit less
>relief than the single transfer print. What was the original surface of
>the pigment emulsion at the time of exposure is now back to being on top
>again.
With single transfer the relief effect can vary tremendously according to
many variables (thickness of tissue, contrast of image, strength of
sensitizer, transfer procedures, etc.) Of these variables the most
important is the final support. The most obvious extremes will be found
when contrasting images on fixed out photographic papers and sized
water-color papers. However, even when using fixed out photographic papers
the relief effect can be greatly enhanced by some papers and completely
eliminated by others. In monochrome work, using either single or double
transfer, it is the final support that primarily determines the nature of
the relief effect.
Sandy King
This archive was generated by hypermail 2.0b3 on Thu Oct 28 1999 - 21:40:38