: Overprint on metal containers or plastic tubes I am submitting art to be offset printed on aerosol cans and plastic tubes. It uses 2 PMS colours. One plate is a 100% flood. The other one
I am submitting art to be offset printed on aerosol cans and plastic tubes. It uses 2 PMS colours. One plate is a 100% flood. The other one is a linear gradient from 0% to 100%. The gradient is to be overprinted on the 100% flood. The maximum density will be 200%. This is the way the boxes are printed, and it looks great.
Can overprint be used on metal containers (aerosol cans) or plastic tubes? Since the material is way less absorbent than paper, I am worried that the ink might start moving around if the density is too high.
I know I can ask my manufacturer, and I did, but they are in China and, although they are a very seasoned manufacturer, I am having a hard time communicating the overprint concept to them. I was wondering if it is because it is not possible to use overprint on these materials, so nobody ever asks for it.
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Gradients of 100-0% will not work well. There will be a point (3-8% where the dot pattern will drop off sharply, leaving a visible line. Best to use a gradient that does not zero out,
You've covered all your bases, and tried to do the right thing (get advice from the printer) so all we can do now is make educated guesses.
EDIT: Damn. Missed the comments...
I'd imagine this is going to be screen or UV ink jet printed. In that case, absorption shouldn't be an issue because it will be flashed between colors or UV curved as part of the print process.
200% coverage doesn't even come close to ringing any alarm bells for me. Without special instructions from your print facility, I'd say you're OK.
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