초록 ▼

A method of printing a number of superimposed or otherwise geometrically related layers on a substrate with exact registration which comprises printing said layers over one or more areas on said substrate so as to overlap the boundary of said one or more areas and then removing the layers outside sa

A method of printing a number of superimposed or otherwise geometrically related layers on a substrate with exact registration which comprises printing said layers over one or more areas on said substrate so as to overlap the boundary of said one or more areas and then removing the layers outside said areas. The product produced by the method and the intermediate product prior to removal of layers outside the areas can be used for security purposes.

대표청구항 ▼

A method of producing superimposed layers with substantially exact registration in one or more areas on a substrate, said method comprising the steps of: placing a mask on the substrate, said mask defining said one or more areas; successively printing one or more of said layers on the substrate to e

A method of producing superimposed layers with substantially exact registration in one or more areas on a substrate, said method comprising the steps of: placing a mask on the substrate, said mask defining said one or more areas; successively printing one or more of said layers on the substrate to extend beyond the boundaries of said one or more areas defined by the mask; leaving the mask in place during the entire time that the layers are applied; and removing the unwanted parts of the layers of printed material outside the boundaries of said one or more areas only after all the layers have been applied.