<br /> <br /> <br />Litho Printing offers more color resolution and finer color control than the silk screen printing approach. It is referred to as OFFSET branding. These offset printing machines use CMYK (5 separate colors) + white to a person with the full color range. This works best and stands ideal for realistic photo images. The inks are applied on top of the disc top by wheels... http://www.pearltrees.com/lockletter07