What is the difference between 4 colour process and 4 spot colour?
Four colour process comprises 4 different colour layers which, when combined, create realistic photographic images. The 4 colour components are “CMYK”. Cyan, Magenta, Yellow and Black (K). By varying the dot patterns within each layer, millions of colours can be created. This is the process used by ink jet colour printers. 4 colour process must always be printed on white substrate. Four “spot” colour means there are four individual colours, each of which are applied in separate areas. They can be any colours and can be printed on any colour substrate. PMS colour number must be specified.
