[Alt-photo] digital neg drying

Bob Cornelis bob at colorfolio.com
Sun May 7 20:38:04 UTC 2017


Thanks Kerik - makes sense!

Bob

On Sun, May 7, 2017 at 1:33 PM, Kerik Kouklis via Alt-photo-process-list <
alt-photo-process-list at lists.altphotolist.org> wrote:

> It does not stick, but it prints differently. The neg prints with more
> density wherever the ink is heaviest and not completely dry. The solvent or
> whatever is drying from the neg adds density.
>
> -Kerik
> www.kerik.com
>
> On Sun, May 7, 2017 at 1:28 PM Bob Cornelis via Alt-photo-process-list <
> alt-photo-process-list at lists.altphotolist.org> wrote:
>
> > Thanks Marek
> >
> > I think I had also heard something about the "milkiness" of the neg
> > disappearing - I'll watch for that. To your knowledge, does that affect
> how
> > the neg prints or is it just related to the dryness of the neg (so it
> won't
> > stick and get ruined)? Seems like that could affect final density of the
> > print.
> >
> > Bob
> >
> >
> > On Sun, May 7, 2017 at 1:14 PM, Marek Matusz via Alt-photo-process-list <
> > alt-photo-process-list at lists.altphotolist.org> wrote:
> >
> > > Ha
> > > In a pinch I put my oven on and heat it just so then turn it off and
> > stick
> > > the negative there. I judge dryness when the milky part in the highest
> > ink
> > > density disappears. Maybe 15 min. Make sure u out it face up on a clean
> > > piece of baking sheet and paper
> > > Marek
> > >
> > > Sent from my iPhone
> > >
> > > > On May 7, 2017, at 3:02 PM, David Christensen via
> > Alt-photo-process-list
> > > <alt-photo-process-list at lists.altphotolist.org> wrote:
> > > >
> > > > Perhaps to sharper eyes than mine but I can't say I've noticed any
> > > difference in the final carbon print whether I've dried the negative
> > > overnight or after five minutes. I live in a dry climate and the RH is
> > > pretty consistent throughout the year - if I remember to do it, I try
> to
> > > print the digital negative the day before- just to be on the safe side.
> > > >
> > > > David
> > > >
> > > >
> > > >
> > > >> On 2017-05-07 1:48 PM, `Richard Knoppow via Alt-photo-process-list
> > > wrote:
> > > >>   I am not familiar enough with the material used for digital
> > negatives
> > > but if its anything like conventional film you want to avoid drying it
> > too
> > > fast.  I assume its the ink that needs to be dried. Bob lives where the
> > RH
> > > is mostly pretty high so some warming of the air will help drying. In
> Los
> > > Angeles the RH varies all over the place from tropical to desert. When
> we
> > > have our driest weather I have had roll film dry in ten minutes just
> > > hanging up. When it gets humid, as it is now, it may take many hours.
> > > >>
> > > >>> On 5/7/2017 12:33 PM, Bob Cornelis via Alt-photo-process-list
> wrote:
> > > >>> David
> > > >>>
> > > >>> Thanks for sharing your experience.
> > > >>>
> > > >>> I was also curious if the only criteria for the neg being ready to
> > use
> > > is
> > > >>> that it not stick to the coated paper or if there are other
> qualities
> > > that
> > > >>> change over time that can make a difference.
> > > >>>
> > > >>> Any thoughts?
> > > >>>
> > > >>>
> > > >>> Bob
> > > >>>
> > > >>> On Sun, May 7, 2017 at 11:14 AM, David Christensen via
> > > >>> Alt-photo-process-list <
> > alt-photo-process-list at lists.altphotolist.org>
> > > >>> wrote:
> > > >>>
> > > >>>> Bob - I've been printing digital negs on a 1430 using Pictorico
> > Ultra
> > > and
> > > >>>> Piezography inks.  After about five minutes, I use a hairdryer on
> a
> > > low
> > > >>>> cool/warm setting and move it over the neg about 10 inches away
> for
> > > three
> > > >>>> minutes.  I've had no problems with the neg sticking to the carbon
> > > tissue
> > > >>>> I'm using.
> > > >>>>
> > > >>>> David
> > > >>>>
> > > >>>>
> > > >>>>
> > > >>>>> On 2017-05-07 11:13 AM, Bob Cornelis via Alt-photo-process-list
> > > wrote:
> > > >>>>>
> > > >>>>> I usually try to let my digital negs sit overnight to "cure" but
> > > >>>>> sometimes,
> > > >>>>> especially when doing a lot of testing, that is really
> > inconvenient.
> > > >>>>>
> > > >>>>> How long have you found you need to let negs sit before using
> them
> > > without
> > > >>>>> adverse consequences?
> > > >>>>>
> > > >>>>> I've sometimes used a hair dryer on the back of the negs, but I
> > have
> > > no
> > > >>>>> idea how long to do that or if there is some sign that the neg is
> > > ready
> > > >>>>> for
> > > >>>>> use when accelerating the process that way.
> > > >>>>>
> > > >>>>> I'm using an Epson 11880 on Pictorico Ultra film with both QTR
> > > (pt/pd) and
> > > >>>>> straight driver (cyanotype).
> > > >>>>>
> > > >>>>> Thanks
> > > >>>>> Bob
> > > >>>>>
> > > >>>>>
> > > >>>>>
> > > >>>> _______________________________________________
> > > >>>> Alt-photo-process-list | altphotolist.org
> > > >>>>
> > > >>>
> > > >>>
> > > >>
> > > >
> > > > _______________________________________________
> > > > Alt-photo-process-list | altphotolist.org
> > > _______________________________________________
> > > Alt-photo-process-list | altphotolist.org
> > >
> >
> >
> >
> > --
> >
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> > www.colorfolio.com
> >
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> >
> _______________________________________________
> Alt-photo-process-list | altphotolist.org
>



-- 

Color Folio
www.colorfolio.com

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