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AssigneeThe Standard Register Company
InventorsTheodore Maierson, William H. Mowry, Jr., Dianne M. Potter
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A coated cellulosic web product and coating composition which provides enhanced toner adhesion for documents printed using noncontact printing devices such as laser printers is provided. The toner adhesion enhancing coated cellulosic product includes a cellulosic web having first and second major surfaces with at least one of the major surfaces having coated thereon a polymeric toner adhesion-enhancing composition comprising a generally transparent copolymer of styrene and acrylic acid having a glass transition temperature of between about -16 and 22 degrees C and from about 1 to about 5% by weight zinc as a cross-linking agent for said copolymer. The web may be either continuous or in sheet form. The toner adhesion-enhancing composition may also optionally include a coloring agent and a plasticizing agent.
A toner adhesion-enhancing coated cellulosic product comprising a cellulosic web having first and second major surfaces, at least one of said major surfaces having coated thereon a polymeric toner adhesion-enhancing composition comprising a cross-linked copolymer formed from a mixture of a dispersion of a copolymer of styrene and acrylic acid having a glass transition temperature of between about -16 and 22 degrees C. and about 1 to about 5% by weight zinc as a cross-linking agent for said copolymer.
A security document having enhanced toner adhesion characteristics for printing with a noncontact printing device comprising a cellulosic web having first and second major surfaces, at least one of said major surfaces having coated thereon a polymeric toner adhesion-enhancing composition comprising a cross-linked copolymer formed from a mixture of a dispersion of a copolymer of styrene and acrylic acid having a glass transition temperature of between about -16 and 22 degrees C. and about 1 to about 5% by weight zinc as a cross-linking agent for said copolymer.
A method of printing a document using a noncontact printing device comprising the steps of forming a latent image of said document on an imaging drum, applying a toner to said latent image, transferring said latent image to a surface of a cellulosic web product having coated thereon a polymeric toner adhesion-enhancing composition comprising a mixture of a dispersion of copolymer of styrene and acrylic acid having a glass transition temperature of between about -16 and 22 degrees C. and about 1 to about 5% by weight zinc as a cross-linking agent for said copolymer, said adhesion-enhancing composition having been dried to form a cross-linked copolymer, and thereafter fusing said toner to said surface of said cellulosic product by the application of heat and pressure.
A method for making a toner adhesion-enhancing coated cellulosic product comprising a cellulosic web having first and second major surfaces, by coating on at least one of said major surfaces a polymeric toner adhesion-enhancing composition, wherein said adhesion-enhancing composition is formed by mixing an aqueous dispersion of a copolymer of styrene and acrylic acid having a glass transition temperature of between about -16 and 22 degrees C. with a zinc oxide ammonia cross-linking agent complex-contained in an aqueous alkaline solution, and drying said adhesion-enhancing composition which has been coated on said surface to form a cross-linked copolymer.
Dependencies are inferred from the claim text.