From: Sandy King (sanking@clemson.edu)
Date: 04/21/03-05:28:14 PM Z
Nick,
Negatives on Pictorico from the pigment inks of the Epson 2000P hold
up very well to the type of abrasion you describe. I just
experimented with a discarded negative and was not able to disturb
the surface of the highlights even with rather heavy finger abrasion.
One thing you need to take care for with pigment inks is that they
require quite a long time to dry, perhaps even up to two hours more.
And this is true whether the pigment is on OHP or paper. Until dry it
is very easy to remove the pigment from paper or OHP with just every
so slight abrasion with your finger.
Sandy
>Lee, We may be dealing in semantics here, since the term "easily" is
>relative. My take on the issue is that you may be able to make a negative
>from the setup you are talking about, but that after making one print, you
>will probably find that there are imperfections that weren't present before.
>In my own case, during test, I checked my resulting neg by simply (read that
>very, very lightly) touching the neg with my index finger in a highlight
>area of the image. I feel that if you find any abrasion as a result of the
>finger touch, the combination of the ink & substrate is not useful. It
>might be good to continue this discussion so that everyone can judge for
>themselves and also, I would like to know how your negs hold up under a
>similar test.
>
>Many thanks......
>
>
>n
>
>
>----- Original Message -----
>From: "H. Lee Pratt" <squnch@cox.net>
>To: <alt-photo-process-l@skyway.usask.ca>
>Sent: Monday, April 21, 2003 2:35 PM
>Subject: Re: Inkjet digital negatives
>
>
>> Hello Nick,
>>
>> Just a note to tell you that I'm getting great digital negs on
>> Pictorico OHP using PiezographyBW software along with Cone's quad black
>> inks, this on an "ancient" Epson Stylus Color 3000 (four-color) printer.
>>
>> As many have pointed out, this OHP does scratch easily; and I think
>> probably Sandy's analysis of why this is so is valid. Handle with Care!
>>
>> Lee
>>
>> On Monday, April 21, 2003, at 10:59 AM, Nick Makris wrote:
>>
>> > Sandy,
>> >
>> > You will recall that I'm still looking for the right combination of
>> > materials for digital negs - in my case, I am trying to use quad black
>> > inks
>> > and not the spectral density approach from 4/6 color inks. So, please
>> > don't
>> > misunderstand my question, but, are you now saying that negs produced
>> > on
>> > your setup with the 2000 are not as stable as I once inferred from a
>> > previous post? It could also be that my mind is going, but that's
>> > another
>> > story.
>> >
>> > Many thanks,
>> >
>> > N
>> >
>> > ----- Original Message -----
>> > From: "Sandy King" <sanking@CLEMSON.EDU>
>> > To: <alt-photo-process-l@skyway.usask.ca>
>> > Sent: Monday, April 21, 2003 9:38 AM
>> > Subject: Inkjet digital negatives
>> >
>> >
>> >> One of the shortcomings of digital negatives from inkjet printers
>> >> appears to be that they are much more subject to scratching than
>> >> negatives on film. I wonder if anyone has found a protective surface
>> >> that can be easily applied without damaging the negative? Has anyone
>> >> tried a clear coat of satin or semi-gloss polyurethane? And other
>> >> suggestions appreciated.
>> >>
>> >> Sandy King
>> >
>> >
>> >
>> >
>> H. Lee Pratt
>> Santa Barbara, CA 93108
>> squnch@cox.net
>> FAX: 805-565-1670
>> VOICE: 805-565-1240
>>
>>
>>
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