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Ideal Eboni ink dilutions

Ideal Eboni ink dilutions

2016-11-21 by bakerstrt@...

I have read that the dilutions of eboni 6 ink as described by Paul R, are designed to allow the use of the Epson driver and therefore involve some compromise in that the spread of ink densities is not ideal.


My question is: If I am going to make my own profiles and print only with QTR, what dilutions would be better than the standard arrangement? By better, I mean smoother gradations in tone, with Dmax a secondary concern.


Thanks.


Michael



Re: [QuadtoneRIP] Ideal Eboni ink dilutions

2016-11-21 by Paul Roark

These are factors you might consider:

The originaly Eb6 dilutions were also intended to work well on the really old printers. I used a 7500 for a long time. That 2% dilution isn't really necessary for modern printers.

For Arches (uncoated) watercolor paper, a second MK gets a better dmax. No inkjet paper needs a second MK.

I like the idea of a secondary gray partition that is a "toner" in QTR. So, while the center of my range for good cross-overs (Epson or QTR) is to have the lighter ink be 30% darker ink, 70% dilution base, with two gray partitions, you can easily use the, for example, 6% and 9% MK inks as the starting inks.

You can't have two inks that are the same density in the same partition. Also, if the two inks are too close to each other, the steepness of the cross-over makes me suspect of its flexibility to absorb inevitable variables that might be out of your control.

Do what is easy for you to maintain. One of the old "EZ" systems we made used just two dilutions in a hextone -- an LK (for C and M) and an LLK (for Y and the light c & m) -- plus, of course, a K. While this targeted the Epson driver, it worked very well with QTR if you had two partitions.

Good luck.

Paul
www.PaulRoark.com


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On Mon, Nov 21, 2016 at 12:28 PM, bakerstrt@... [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:

I have read that the dilutions of eboni 6 ink as described by Paul R, are designed to allow the use of the Epson driver and therefore involve some compromise in that the spread of ink densities is not ideal.


My question is: If I am going to make my own profiles and print only with QTR, what dilutions would be better than the standard arrangement? By better, I mean smoother gradations in tone, with Dmax a secondary concern.


Thanks.


Michael




Re: Ideal Eboni ink dilutions

2016-11-22 by ascherjim@...

Paul:  I'm using Epson 1400 and 4800, and using the 2% solution.  Re your statement: "The originaly Eb6 dilutions were also intended to work well on the really old printers.  I used a 7500 for a long time.  That 2% dilution isn't really necessary for modern printers."  Are the printers I'm using "really old?"  Regards, Jim

Re: [QuadtoneRIP] Re: Ideal Eboni ink dilutions

2016-11-22 by Paul Roark

You don't need the 2%. The 6% is plenty light for both of those printers.

Paul
www.PaulRoark.com
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On Mon, Nov 21, 2016 at 4:55 PM, ascherjim@... [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:

Paul: I'm using Epson 1400 and 4800, and using the 2% solution. Re your statement: "The originaly Eb6 dilutions were also intended to work well on the really old printers. I used a 7500 for a long time. That 2% dilution isn't really necessary for modern printers." Are the printers I'm using "really old?" Regards, Jim


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