Inked image is transferred from a photo-etched plate to a thick, soft silicone pad. The pad is then pressed against the object.One colour is done at a time, but registration between colours is so accurate it allows up to four-colour process printing, depending on the size of the print area. Post-curing is aided by the use of heating tunnels.
See examples below.
Products suitable for pad printing is: plastic pens, rulers, plastic coasters, plastic clocks, keyrings, etc.