Digital BW, The Print

Thanks for the info Paul.

On Aug 16, 2005, at 7:40 PM, Paul Roark wrote:

> Carl,
>
> I don't have a "for sure" answer on this, but I think it's in all  
> of the UT
> inks except to the extent that MIS has inventory.  In short, the  
> old base is
> totally history, but I suspect MIS is not eager to have people hold  
> off
> buying because they don't want the old base.  On the flip side, I  
> have not
> checked the UT inks for changes, but a few samples indicate that  
> the new
> base may slightly affect ink density and tone.  (I suspect, that is  
> what the
> new Pro Archival inkset is all about.)  I'm waiting for a full set  
> of inks
> so that I can check the UT mixing formulas.  As of now, MIS is just  
> using
> the existing formulas to mix the inks where they need to.
>
> Paul
> www.PaulRoark.com
>
>
>
>> -----Original Message-----
>> From: DigitalBlackandWhiteThePrint@yahoogroups.com
>> [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf Of  
>> Carl
>> Schofield
>> Sent: Tuesday, August 16, 2005 3:27 PM
>> To: DigitalBlackandWhiteThePrint@yahoogroups.com
>> Subject: Re: [Digital BW] Fade test -- 4800 v. UT7, MIS old v. new, &
>> Kirkland
>>
>> Is the "new base" in any of the inksets that MIS is currently  
>> selling?
>>
>> On Aug 16, 2005, at 7:05 PM, Paul Roark wrote:
>>
>>
>>> My latest fade test (compact fluorescent light) reached 600 hours.
>>> So, I
>>> have some initial fade results.
>>>
>>> The short version:  UT7 showed less fading than the 4800 "Advanced
>>> B&W" mode
>>> prints both in the highlights and at 50%; the MIS new base does not
>>> appear
>>> to negatively affect UT performance; and inks on Kirkland paper are
>>> very
>>> stable.
>>>
>>>
>>> Notes: The results are expressed in Lab and were read with the X-
>>> Rite DTP 22
>>> spectrophotometer.  The same paper batches were used for all
>>> comparisons.
>>> The results shown are the average of 3 readings.  The affects of the
>>> variability of the spectrophotometer were minimized by reading
>>> comparison
>>> test strips at the same time.  The actual starting, pre-fade
>>> densities may
>>> vary from the control test strips, but comparisons based on the pre-
>>> fade
>>> measurements resulted in similar comparisons.  The UT7 comparison  
>>> test
>>> strips were printed with "neutral" curves that were modified to
>>> match the
>>> density and tone of the 4800 test strips as closely as reasonably
>>> possible.
>>>
>>>
>>> Spectrophotometer readings:
>>>
>>> EEM 0% (paper white) Control: (96.83, 1.03, -3.49)
>>>
>>>                      Change: (-0.04, -1.4, 4.48)
>>>
>>>       Comment: As we know, the paper yellows.
>>>                This will affect mostly the highlight results.
>>>
>>> 4800 EEM AB&W Neutral 5% Control: (92.76, 1.20, -3.79)
>>>
>>>                          Change: (0.16, -1.49, 4.92)
>>>
>>> 7600 UT7 Neutral 5% Control: (92.79, 0.83, -3.98)
>>>
>>>                     Change: (-0.02, -1.59, 4.94)
>>>
>>>
>>>
>>> 4800 EEM AB&W Neutral 10% Control: (88.35, 1.07, -3.11)
>>>
>>>                           Change: (0.52, -1.39, 4.73)
>>>
>>> 7600 UT7 Neutral 10% Control: (89.18, 0.34, -3.34)
>>>
>>>                      Change: (-0.04, -1.41, 4.53)
>>>
>>>
>>> 4800 EEM AB&W Neutral 50% Control: (53.55, 0.72, 0.38)
>>>
>>>                           Change: (0.67, -0.55, 2.04)
>>>
>>> 7600 UT7 Neutral 50% Control: (54.04, 1.96, -0.27)
>>>
>>>                      Change: (0.08, -0.68, 1.93)
>>>
>>> 2200 UT7 New Base 50% Control: (53.53, 1.17, 0.14)
>>>
>>>                       Change: (-0.14, -0.68, 2.04)
>>>
>>> Kirkland UT7 50% Control: (56.54, -0.52, -4.17)
>>>
>>>                  Change: (-0.33, -0.56, 1.24)
>>>
>>>
>>>
>>> Paul
>>> www.PaulRoark.com
>>>