From: Julian Smart (julian@jsmart.fslife.co.uk)
Date: 04/16/03-02:21:27 PM Z
Alan,
I have been testing the OHP films for Permajet for the past two years.
The original film worked fine for gum but never allowed a heavy enough
printing for anything requiring a longer scale neg. It was also not very
waterproof and anything over very low r/h would cause it to get sticky. It
also never dried with colour inks.
The new film is very similar to the Pictorico product but from the samples I
have seen of the latter the Permajet carries a heavier base.
Very fine results can be produced from this film, using dye inks in a
1270/1290 and carefully selecting the right media choice. This can,
surprisingly, vary between individual printers but the operating environment
and the storage methods of the material are major variables.
Permajet OHP film will give a very long scale neg. if required and dries
perfectly waterproof (well, splashproof). I haven't found a decent profile
for artificial pyro. negs yet as the colour varies across the density range,
but they do work for VDB or Cyanotype if the contrast of the file is reduced
by around 70% and used with photoshop hue no.43.
One interesting feature of digital neg. printing is the ease with which they
print- somewhat disappointing for gum where it's often nice to use a brush
to add that personal touch. Much nicer than doing it beforehand in
Photoshop!
Cheers.
Julian.
----- Original Message -----
From: Alan Mynett <a.mynett@ntlworld.com>
To: JUAN MIGUEL JUSDADO <alt-photo-process-l@sask.usask.ca>
Sent: Wednesday, April 16, 2003 8:07 AM
Subject: Re: PermaJet OHP Transfer film (165 microns)
Hello JUAN,
Wednesday, April 16, 2003, 6:24:42 AM, you wrote:
> Does somebody know the material "PERMA JET OHP" transparency for printers
of
> jet of ink to make negative digital?.
> What does he/she differ it can have with "PICTORICO OHP"?.
There appear to have been two PermaJet OHP transparency materials
available in the UK.
The original was (I believe) 100 microns thick. However, there is now
a material labelled OHP Transfer Film with a thickness of 165 microns
which uses ceramic technology - and which seems close to the
descriptions I have heard of Pictorico. A recent news item in the BJP
did say that Nova (linked to Permajet) would be importing Pictorico
into the UK. This must be it.
I have tried a box (£14.40 for 10 sheets) of this new material and
it has given me good (though preliminary) results with my Epson C80 for
cyanotype and van dykes.
I have also had some success (also with the C80) with JetTec OHP film,
though it is very flexible compared to the PermaJet and rather
difficult to feed into the printer. It's a lot cheaper though!
-- Best wishes Alan http://www.mynett.org.uk
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