Photopaper as neg. for gum

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From: Joao Ribeiro (jribeiro@greco.com.br)
Date: 10/20/01-08:18:55 PM Z

Hi folks,

I am trying to use photo paper as negative for gum, I made an inter
positive in film and enlarged it to get a photo paper neg.
The problem is that I get no image at all with this neg.
Paper base + fog is about step 7 in the Stouffer step wedge. I normally
print well from ink jet paperneg (base + fog = step 3 in Stouffer) with
a 6 minutes exposure and in this case I gave a 60 min exposure and still
get no image, it washes away while the empty borders are solid. The
paper I'm using is Ilford RC Glossy. Does this paper block all uv?
My light source is a Mercury vapor lamp.
Thanks in advance for any info

Joao

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