Importance

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Abstract

A process for forming a lenticular-coated substrate, and the lenticular-coated substrate manufactured from this process, is provided comprising the steps of continuously advancing a plastic substrate film having an upper side and a lower side past an extrusion station; continuously coextruding a molten thermoplastic tie resin and a molten thermoplastic lenticular resin onto the upper side of the substrate film from the extrusion station to form a composite comprising a substrate layer, a tie layer and a lenticular layer such that the tie layer is superposed on the substrate film and the lenticular layer is superposed on the tie layer; and continuously advancing the composite past a chill roll to form the lenticular-coated substrate such that the lenticular layer of the composite contacts the chill roll to form a lenticular pattern. Further, an improved process for producing a three-dimensional image is provided comprising the additional steps of cutting the lenticular pattern having equally spaced lines onto the chill roll with a precision gravure engraving machine; color separating an image to produce a multiplicity of color-separated images; for each color-separated image, engraving with the precision gravure engraving machine a gravure dot pattern with line spacings identical to the lenticular pattern onto a gravure print cylinder; and printing the image onto the lower side of the substrate film so that the gravure dot pattern of each gravure print cylinder is in registration with the lenticular pattern of the chill roll to produce the three-dimensional image.

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First Claim