403Re: [PPLetterpress] Re: Printing troubles?
- Mar 2, 2002Gerald: Thanks for your tips. I did in fact try moistening the paper and got
a bit better blacks, but the results were not enough of an improvement to
justify the hassle.
This brings up a point: some say that humidity in the shop (or lack thereof)
is important; others say it makes no difference. Does anyone out there have
an opinion on that? On the day I was printing the above job, there was low
humidity (22%). The temp I can keep about 68-70°, but have not yet found a
way to control humidity, other than buying one of those small room
humidifiers. Is it worth it?
Ars Brevis Press
> From: "bielerpr" <bieler@...>
> Reply-To: PPLetterpress@yahoogroups.com
> Date: Sat, 02 Mar 2002 02:26:19 -0000
> To: PPLetterpress@yahoogroups.com
> Subject: [PPLetterpress] Re: Printing troubles?
>> I have been using a newly acquired Hostmann-Steinberg black from NA
>> Graphics. So far, results have been good, but on the C&P, I have noticed
>> that blacks are not always completely as solid as they should be, as though
>> the ink is not flowing well into the paper fibers. Would the setswell
>> compound help? Someone else recommended plate oil, and I think stand oil was
>> also mentioned. Anyone have experience with any of these additives? Do they
>> tend to dilute the color at all?
> Dear Katie
> I would not use the Setswell compound for anything other than large
> solids that are giving you trouble. You would not want to use it for
> type. It will muck up the works.
> If the blacks are not as "solid" as you would like would dampening
> the paper or increasing the impression a bit help? If it is just that
> they are not of the color that you want, maybe you could add a tad of
> red to the black? To get a really deep black on say a large initial,
> I will sometimes print first in red and then print over this in
> black. Yes, a double run. But I use Vandercooks and they are quite
> precise in register.
> Best not to put any additive in an ink, though having said that, it
> seems that you always find you have to. To loosen an ink I find that
> better than the traditional cutting varnish, is to find another black
> of the same manufacture and similar brand but one that has less
> viscosity, and use that as a mix. You can alter the resultant color
> with a bit of red or blue to get nearer the finished black that
> appeals to you.
> All best
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