Abstract: A unitary laminate is produced bearing a permanently visible pattern of indicia. The laminate comprises a binder layer, containing pigment, and a transparent layer, each formed of hydrophobic synthetic polymer. Sublimable dyestuff is heat transferred from an auxiliary carrier web to the transparent layer to submerge the pattern into an external surface of the transparent layer.

Abstract: A fiberglass-resin laminate is produced with a permanent pattern of indicia thereon. Fiberglass mat and/or roving is passed in a multilayer, continuous, elongate form through a reservoir of resin for combination therewith. The combination is drawn together with an aligned and adjacent continuous and elongate support sheet, bearing the desired pattern of indicia, through a die for compressing the components together to form a self-supporting, elongate, laminated structure having the indicia permanently visible thereon, either submerged below an external surface of the laminate or, upon stripping of the indicia, as an intaglio pattern.