Abstract: A method of printing on composite substrates particularly composite substrates of the type having a matrix impregnated with a resin such as an epoxy. The method is particularly applicable to carbon fiber substrates known as “pregs” or “pre-pregs.” The substrate is maintained in a cooled condition, is sheeted and provided with a carrier. The surface is top coated with a UV curing ink. After curing, an image is applied using UV curable inks. After printing, the substrates are maintained in a cold condition for subsequent processing into items such as tubes, rods or the like.