Thermal Transfer Printing
Thermal transfer printing in its basic is wax ribbon, which moves in tandem with the CD, past a stationary print head. The print head transfers those dots to the CD face to form the image.
There are 2 types of thermal transfer print on a CD – single colour and full colour.
a) Single Colour (usually black): This is the simplest form of CD printing and is ideal for black text only, such as CD title and version number, onto a designated area of the disk. A disadvantage of this process is that the print resolution is quite low (about 200dpi) so small text is no good.
b) Full Colour: Produces a “hard and scratch-resistant” finish, however, small text can be fuzzy (10pt and under) could become unreadable.