Abstract: A composite sheet susceptible to having a water base ink applied by an ink jet printing system is provided. The sheet includes a non-absorbent substrate, such as aluminum on to which is applied a coating of hydroxypropyl cellulose dissolved in an organic solvent and containing a suitable flatting agent such as finely divided amorphous silica. The coating is applied in a thickness in the range of 3 to 25 microns. The method of preparing the composite sheet is also disclosed.

Abstract: A method for making a game ticket, such as for example a lottery ticket, is disclosed in which the ticket has a base sheet and a cover sheet adhesively joined together in peripheral portions of sections containing information used in the game. The cover sheet, along with other materials placed on the base sheet, conceals the information to be used in the game and prevents undetected tampering with the ticket. The ticket is formed from a base sheet on which information to be concealed is printed, and a release coating is deposited over predetermined areas of the previously printed information. Thereafter an opaque material is applied over the release coating to conceal the information in the printed areas, which opaque material is adapted to be rubbed off when the ticket is used. Thereafter the non-transparent cover sheet is adhered to the base sheet along predetermined areas surrounding the sections of the base sheet defining individual tickets.