Digital BW, The Print

On Thu, 2004-03-04 at 20:12, jerdiakiw wrote:

> What is the difference between quadtone and peizography.. . 
> am I missing something or is the Roark method a different  process  
> form peizography . . any advantages of one over the other?
> jerry in toronto


Hello newbie. 

Quadtone is a term that refers to an inkset that is four different
dilutions of the same black ink. Black, dark gray, middle gray, light
gray. 

Piezography is a trade name for a family of quadtone inks from Jon Cone.
See:

http://www.inkjetmall.com/store/bw/piezographyBW.html

Piezography inks are fixed tone inks - each inkset gives you exactly one
color.

MIS makes both fixed tone and variable tone inks. Their variable tone
inks let you choose at print time what color you want your print, from
cool tone to sepia. See:

http://www.inksupply.com/index.cfm?source=html/bwpage.html

Lyson makes both fixed tone and variable tone inks too. All these
companies seem to feel obligated to use different terminology, all the
better to confuse the customer ;-) Lyson, for example, calls their
variable tone inkset "small gamut." Their website uses frames, so you'll
have to click on the appropriate links to get there:

http://www.lyson.com/includes/frames.html

Our esteemed Mr. Rouke works mostly with MIS, and in fact has done a
fair amount of research for MIS. The "Rouke method" is indeed a very
different process than Piezography.

That's enough to get you started - go do some reading, and research the
archives from this group and others when you have questions. You almost
certainly aren't the first one to ask.


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