Digital BW, The Print

Carl,

The problem with this Eboni-glossy printing approach and the UT1 is the
light toner.  In UT2 the coolness comes from an ink that is actually a hair
darker than the UT1 cyan.  That accounts for the dmax differences, I assume.

Paul
www.PaulRoark.com
_____________________________________

-----Original Message-----
From: Carl Schofield [mailto:scho@...] 
Sent: Monday, January 19, 2004 12:50 PM
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: Re: [Digital BW] Re: Glossy printing with Eboni -- who needs a
4000?

Roy & Paul,

I tried the UT1 inks with Eboni K in my 1270 using a neutral curve in  
QTR and printed to Epson Photo Paper.  The Eboni rubbed off and showed  
a gloss differential only in the 100% patch.  However, by applying a  
curve adjustment layer and limiting output at 100% I was able to get  
rid of the rub-off and gloss differential.  The "optimal" 100% output  
limit in terms of dmax was at 92% and there was no rub-off or gloss  
differential.  Print looked great with no bronzing either.  Dmax  
numbers (see chart below) were not that great but the blacks still  
looked good.  I did no spraying with Print Shield for these tests.  I  
wonder if more C position gray ink were laid down under the Eboni if  
dmax would be higher.  Roy, could this be accomplished with a higher  
GRAY-OVERLAP?  I was using 10%.

Carl

Curves 100% Ouput	D
90	1.64
91	1.64
92	1.65
93	1.631
94	1.614
95	1.609
On Monday, January 19, 2004, at 02:42  PM, Roy Harrington wrote:

>
> Hi Paul,
>
> I'm curious just what you've got here.  Is it that this one specific
> paper Smooth Pearl is somehow compatible with Eboni but
> others aren't?    Or are you just not using the Eboni ink by making
> the 100% spot just 100% R and G and 0% B -- i.e. the dark warm
> gray and dark cool gray inks are enough to give a great dMax.
>
> Roy
>
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Paul Roark"
> <paul.roark@v...> wrote:
>> OK, this is a little half-baked, but the bottom line is that I've hit  
>> a dmax
>> of 2.28 on Ilford Galerie Smooth Pearl - with Eboni.  There is not
>> significant dusting or rub-off.
>>
>>
>>
>> The secret is that the UT2 (and perhaps UT1) inks use a base that is  
>> the
>> glossy binder.  It's not an acrylic coating on the particle.  So, I  
>> don't
>> let Eboni sit there by itself - or barely at all.  So, to the extent  
>> there
>> is Eboni there, it is held by the base that carried the other inks  
>> into that
>> spot.  The best dmax so far is with the yellow position sepia toner  
>> pulled
>> out entirely at the 100% spot.
>>
>>
>>
>> Whether I can write full curves for this is untested.
>>
>>
>>
>> So, there is more to do here before declaring any kind of victory,  
>> but we
>> may not need to mess with switching blacks any more.  Now that would  
>> be
>> nice.
>>
>>
>>
>> Paul
>>
>> www.PaulRoark.com <http://www.paulroark.com/>
>>
>>
>>
>> [Non-text portions of this message have been removed]
>
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL OR EXEMPLARY
DAMAGES, INCLUDING BUT NOT LIMITED TO, DAMAGES FOR LOSS OF PROFITS,
GOODWILL, USE, DATA OR OTHER INTANGIBLE LOSSES (EVEN IF THE  "OWNER" AND
"MODERATORS" OF DIGITAL BW, THE PRINT YAHOO GROUP HAVE BEEN ADVISED OF THE
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