How To Overprint Spot Data In Illustrator - Canon Arizona 2300 Series Operation Manual

How to Overprint Spot Data in Illustrator

6. Use the new swatch for any objects or fills which need to be printed with white ink. Clicking on
new spot color swatch will make this the default fill color for this document. Select element you
would like to be treated with Spot information and choose the fill swatch. See the example below.
[60] Select Spot Fill
7. Once you've configured your source image with white ink or varnish as your new spot color, save
your work.
How to Overprint Spot Data in Illustrator
Set Up Overprint
By default, when you print opaque, overlapping colors, the top color knocks out (cuts a hole) in
the area of colored image underneath. Overprinting prevents knockout and allows the colored
image data to print over top of the other color being used, which in this case is white. You will
want to overprint when the artwork needs to be printed over top of white, usually if the substrate
material is non-white and therefore white is required to accurately render image data.
144 Chapter 7 - Manage a White Ink Workflow