Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Steve Kale <stevekale@b...> 
wrote:
> How do you adjust an ink set for paper tone?  No way that I know of...

The same way you adjust the formula of an inkset when using carbon as the main 
pigment. Remember that carbon is BROWN. So to make it appear grayish rather than 
brownish, you need to adjust the color of the entire formula with a complimentary colorant 
to arrive at your desired spec.  For example PiezoTone Carbon Sepia is simply pure carbon 
pigment. PiezoTone Warm Neutral uses another pigment to temper the color of the carbon 
and bring it more to the warm side of neutral.

So now in regards to paper - if a paper is orange and one prints gray on the orange - the 
gray (unless it is fully opaque) will appear as an orange-gray.  If one prints with a bluish 
tint of gray onto the orange paper in just the right precise ratio of gray and blue - the gray 
can appear to be neutral - rather than take on the cast of the paper.

All ink formulation in terms of monochromatic must take paper into consideration. When a 
formula is made it is tested on various whites for chroma results of the formula. K7 is 
formulated so that it will appear neutral on a specific white. Each of its 7 dilutions is 
separately formulated for that spec.

Hope that illustrates the concept for you.

regards,

Jon Cone