Abstract: A holographic image produced by the impression of a shim onto a metallic ink coating comprising a plurality of metallic particles suspended in a resinous ink binder. A resinous or substantially tactile and nonresilient undercoat can be applied to the substrate also to receive the impression of the shim and to create more distinct holographic imagery. A substantially clear overcoat can also be applied over the metallic ink coating to enhance the reflectivity of the image.

Abstract: Cards and methods of securing hidden symbols on cards are disclosed. The cards, such as instant-win lottery tickets, utilize continuous overprint inks that mask the boundaries between their "secure" and "unsecure" portions to inhibit unscrupulous players from successfully tampering with them. By reformulating the overprint inks to permit a single set to be applied to both portions of a card, more vibrant and aesthetically-pleasing graphics may be displayed as well while utilizing fewer printing stations during the printing process.Alternatively or additionally, the cards may be embossed for added security. Raising portions of the secure area of a card above the remainder of its surface produces irregular features, thereby inhibiting both improper removal of the upper latex or other coating and photo reproduction of the card. The varying card height caused by embossing further inhibits heat-based tampering, as heat transfer to the irregular surface is no longer uniform.

Abstract: Cards and methods of securing hidden symbols on cards are disclosed. The cards, such as instant-win lottery tickets, utilize continuous overprint inks that mask the boundaries between their "secure" and "unsecure" portions to inhibit unscrupulous players from successfully tampering with them. By reformulating the overprint inks to permit a single set to be applied to both portions of a card, more vibrant and aesthetically-pleasing graphics may be displayed as well while utilizing fewer printing stations during the printing process.

Abstract: A card, such as a lottery ticket or game piece, lacking a foil laminate is disclosed. To simulate the appearance of such a laminate, however, the card includes a substrate onto which metal particles are adhered. The particles are permanently suspended in a resinous ink binder, thus forming neither a sheet of material nor a continuous, solid film. To enhance the reflectivity of the card, a clear overcoat may be applied.