Every color is on a single plate. If you have a spot color added to a four
color job, you'll need five plates and five passes through the press.
Spot colors can also cost more because that part of the job can't be grouped
together with other jobs. A print shop may run five or six 4-color (CMYK) jobs
at the same time.
A job with a spot color or two has to be run by itself and can't be ganged with
another, which means you've got to pay for cleaning the press.
Second-I am using the Pantone Process Coated library and working in aCMYK color mode. I chose my colors from the above library, but when Itook my project to InDesign and did a preflight--it told me I had 16spot colors. What important bit of info am I not getting here?
If you're using Pantone Process you should have nothing but CMYK.
The purpose of using the Process colors for Pantone is to avoid the use of Spot
colors and create the color as closely as possible with CMYK.
Pantone is a branded set of inks -- 20 or more I believe -- that are mixed in
exact quantities to produce colors that are exact matches to the fan colors.
The Pantone Process set gives proportions of CMYK colors that come close to
matching the PMS numbered colors achieved with the Pantone inks. The Process
set is CMYK, not spot.
With the document open go to the swatch pallette (the main one, not the Process
pallette) and select the first swatch. Then click on the triangle on the upper
right of the pallette. Go to Swatch Options on the menu and make sure the color
is set to Process, not Spot. Do that for each color.
Then preflight again. You should just have CMYK/Process colors, no spot. If
you're still seeing spot colors, go through the swatches again.
laurak@madmousergraphics.com
http://www.madmousergraphics.com
web design, print design, photography