ink laydown order - more discussion please
ink laydown order - more discussion please
- Subject: ink laydown order - more discussion please
- From: email@hidden
- Date: Mon, 9 Dec 2002 15:53:28 -0600
Hi,
In November Jeff Crump of the Leaf-Chronicle brought up the subject of ink
laydown order.
"GretagMacBeth ProfileMaker software doesn't take into account
alternative ink laydown sequences (instead of printing CMYK, we go YMCK,
because of a press limitation), so it completely gives us false ICC
profiles. So my question is, what profiling software can deal with this?"
Neil Snape added:
"It's true by putting the yellow down first the
contaminating colours and trap will be quite different than K first but the
resulting colours produced by the colour build numbers (chart data) will be
a measured and controlled characteristic of that press. The profile created
is a reflection of this equation colour build data=referenced measurements
in Lab. PrintOpen works as ProfileMaker or any others I have used, unless
I've really missed out this detail."
C. David Tobie (Color Czar) offered:
Actually, you might find that ColorVision's ProfilerPRO does just what you
need, as it reads the actual results of black generation and other
settings, instead of attempting to model them after printing a raw target.
Here are my questions on this subject.
1. If you aren't working with printing presses and inks, but instead are
working with ink jet printers and dyes or pigments, or are working with dye
sublimation printers and dyes, or are working with photographic medias and
leds and dyes, DOES THE LAYDOWN ORDER MAKE A DIFFERENCE or will the profile
apps most use suffice?
2. Don't all output profile building apps read the actual results of output
(as David suggests) and compare them with reference measurements in Lab (as
Neil writes). If they do something different can someone explain what
other variations exist?
3. If you can't vary the laydown order, and it must be YMCK, does this
suggest that only certain applications will produce good results? (Would
this hold true whether the colorants were ink or something else?)
4. Will this topic be specifically addressed in "the big color management
book" that some of this list's regulars are creating?
This subject fell out of discussion rather quickly, and like Neil I'm
wondering if I've missed out this detail.
Thanks for any additional information you can add.
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