From: Judy Seigel (jseigel@panix.com)
Date: 04/22/03-09:37:49 PM Z
On Mon, 21 Apr 2003, Sandy King wrote:
>
> 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.
That's my experience, too. In fact, as I wrote in digital neg article in
P-F #8, when I ran my fingernail HARD down the film, it made an abrasion I
could see when I looked at an angle but that did NOT show in the
print. There may have been some, but I never did see scratches on
Pictorico from the 1160. Of course I may lack that sensibility, but...
could those scratches be situational ?
I've found sleeve arrangements sold for negatives, from the sleeves for 35
mm that you have to slide the strip in & out of to whatever you do for big
negatives, unless they're simply interleaved and not put *in* anything you
have to slide them out of, cause scratches.
I keep 35 mm film in a single-folded permalife paper slightly longer &
higher than the strip, 6 or 7 strips to a glassine envelope, one film
strip per paper, so they're lifted out, not slid out. Same for large negs
-- I made big "folders" of pH neutral corrugated board, hinged with tape
along one long side. The negatives stack in them with clear interleaving
between. The negs are "turned", one sheet at a time, so no need to slide
them out... On a slide, the tiniest piece of grit, which can just be sky
fallout or a loose atom, manages to scratch.
Judy
>
> 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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