[printing] In offset printing, an area that has been defined to cut through or mask specific layers of colored inks. Knockouts are used to ensure that certain ink colors are not mixed with inks that are laid down after them.
[printing] In offset printing, an area that has been defined to cut through or mask specific layers of colored inks. Knockouts are used to ensure that certain ink colors are not mixed with inks that are laid down after them.