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Digital BW, The Print

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Re: [Digital BW] Re: question about CFS systems - K7? Answers for Clayton

2005-10-07 by BKPhoto@aol.com

Jon-

Thanks for the clarification on the ink formulation; it fills in 
another blank for me. It would be very helpful if you would elaborate 
on the relationship between the print profiles you're authoring for 
K7/QTR and the linearization issue. If I've understood you correctly: 
you're saying that the authoring process reduces the need to linearize. 
It would make sense to me if the machines we're using stayed in a 
factory calibrated state, or were self-calibrating. My experience is 
that machines do drift as they are used and there are other 
factors--ink stock and paper stock, even environmental issues--that 
affect the calibrated state of a printing system.

Any insight you can provide would be very useful. I'm not asking for 
proprietary information, just a better understanding of the 
relationship between these issues and how you've addressed them.

There is one additional question you might address: the dmax of the K7 
inks. Is it possible to increase the dmax, or are there inherent 
limitations or other factors that impose a limit?

Thanks, Jon. Beautiful inks.

Bill Kennedy
Austin, Texas


-----Original Message-----
From: piezobw <piezobw@...>
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Sent: Fri, 07 Oct 2005 01:58:11 -0000
Subject: [Digital BW] Re: question about CFS systems - K7? Answers for 
Clayton

    Neutral K7 was formulated as seven distinct ink dilutions. In 
effect, it is
seven ink
formulations. That was a lot of work but it results in uniform 
neutrality. There
was no
other way. You simply can not make a "mother" ink, then dilute it, and 
expect to
be within
the same hue but less dense. Carbon pigments are characteristically 
different
upon
dilution. It does not take much dilution to shift it.

So it is very uniform. Thats the whole idea. Uniformity so that the 
paper has
more meaning
now...

regards,

Jon Cone



--- In DigitalBlackandWhiteThePrint@yahoogroups.com, BKPhoto@a... wrote:
>
>  From: Clayton Jones <cj@c...>
>
>  >Again re color tone, does K7 shift equally in mid tones and darker
>  zones when going from paper to paper? I guess what I mean is do all
>  the inks shift equally?
>
> I believe they do. Cone could certainly provide more insight to this
> question. I'd like to know, for example, if what I'm seeing is 
directly
> related to the ink or to the way the ink is applied to the paper. 
Hope
> that makes sense.





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