From: Sandy King (sanking@CLEMSON.EDU)
Date: 10/08/01-09:53:25 AM Z
I have developed on many kinds of plastics and have not seen this
kind of wave pattern. My procedure is quite simple. Soak the exposed
tissue in cool water for about a minute, squeegee together with the
plastic and place under a piece of plate glasss for 15-30 minutes,
then develop in warm water for 6 minutes, stripping the tissue from
the plastic at 2 minutes.
My opinion is that your problem is not being caused by separating the
tissue from plexi but by one of the following:
1. method of making tissue, including drying
2. method of sensitizing
3. alcohol dip
Sandy King
>I'm busy doing double transfer carbon printing. Until now I am getting each
>time marks from, I guess, separating the tissue from the plexi (wave like
>patterns as the sea leaves on a beach). Before developing I give the plexi
>with tissues a 10 minute rest and after that a 2 minute alcohol dip. How can
>I avoid these marks.
>I have separated tissue and plexi after two minutes but also after 4 minutes
>of development in 40-42 Celsius. In both cases I had the marks.
>
>Witho
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