I do layout of the graphics for cardboard shipping cartons that get printed here in the USA and some in Asia. Company logo, and some safety and environmental marks on the outside of the carton. We have a library of a couple dozen .cdr files that we use. I want to standardize as I've found some to be in CMYK or RGB black.
The output files that we present to the vendor are .pdf and .eps. I am cleaning up our icons in the library to make sure we standardize on one colorspace. Should I be using RGB 0,0,0 or CMYK, 0,0,0,100 ?
\STeve
I would recommend checking with your vendor(s). That's where the magic happens.
Sound advice, as always ;) I will do that.
those rgb values will produce a very "rich" black. The cmyk values would not. More along the lines of C35 M35 Y35 K100 would be better. I stick to the rgb as in most cases it makes for a smaller file size which equals less RIP time.
Interesting to see it (barely) that way. That is a good example.
K of CMYK but it doesn't matter what you do they'll fix it and do what they want.
Some advanced considerations:
How many printing plates are actually being used? Something described as cardboard shipping cartons might only need one or two colors/plates.
If they are using 4-color, rich blacks can be good, BUT now you have to consider
For example: things like this, or on QR codes comprised of rich blacks