Photosensitive emulsion

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From: Ahmadi Ali (aliahmadi10@yahoo.com)
Date: 09/14/01-04:20:02 AM Z


I have started to make my own emulsion to use in silk
screen printing.
The latest forulation I achieved is:
P.V.A 885 gr
TEELOZ 100 gr
NH4 5 gr
ACETIC ACID 5 gr
TITANIUM DIOXIDE 5 gr
(to make 1kg of photosensitive)
after that with adequate amount of bichromate I made
it sensitive to light.
How can I eliminate the last hardening section (use of
formaldhyde and ...)
.should I use P.V.Ac beside if P.V.A?

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