The Standard Register Company

William F Pinell

Rajendra Mehta

Gary W Doll

John M Harden

Harry Allen Seifert

William Thomas Paulson

William M Saluke

Michael E Seitz

Mark D Dotson

A heat-transferable security stamp is provided including a carrier sheet, a top coat layer, at least one design layer between the carrier sheet and the top coat layer, a release layer between the carrier sheet and the design layer, and a base coat layer between the release layer and the design layer. The release layer includes a water-borne release component. The base coat layer includes a water-borne base coat component. The design layer includes a water-borne design component. The top coat layer includes a water-borne top coat component. The carrier sheet is resistant to heat above a predetermined heat transfer temperature. The adhesive release component of the release layer is operative to secure the carrier sheet to the base coat layer at temperatures below the heat transfer temperature and to permit release of the carrier sheet from the base coat layer at temperatures above the heat transfer temperature. The base coat component of the base coat layer is operative to function as a barrier between the release layer and the design layer at temperatures above and below the heat transfer temperature. The design component of the design layer is operative to provide an indication of the presence of the security stamp. The top coat component is operative to adhere to a substrate upon contact with the substrate and upon application of heat above the heat transfer temperature. The recited water-borne components may be capable of being borne in water as an aqueous emulsion, an aqueous dispersion, or an aqueous solution.

Heat-transferable security stamp

Process for the formation of a heat-transferable security stamp entirely free of non-aqueous solvents

The present invention provides a coated cellulosic web product and coating composition which provides enhanced toner adhesion for documents printed using noncontact printing devices such as ion deposition printers. The toner adhesion enhancing coated cellulosic product and composition comprises a cellulosic web having first and second major surfaces with at least one of the major surfaces having coated thereon a layer of a polymeric toner receptor. The polymeric toner receptor layer preferably also includes an electrolyte to adjust the electrical conductivity of the cellulosic web to have a volume resistivity of between about 5.0.times.10.sup.9 and 1.0.times.10.sup.12 ohm cm. The toner receptor layer is applied at a coating weight of from about 0.3 to about 2.0 lb/ream. The invention provides printed documents which can withstand the normal automated handling operations commonly encountered by business documents such as checks, other MICR coded documents, bar coded documents, and the like without the flaking off or removal of the toner from the document. Further, documents printed on substrates utilizing the coating composition of the present invention have been found to have increased resistance to intentional defacement or alteration of printed information.

Toner adhesion enhancing coating and coated paper

A security coating for business documents printed using noncontact as well as impact printing devices is provided which enhances the adhesion of toner particles and/or ink to a document substrate. Other security features may be also be added to the coating to provide a dual-function coating which also provides visible evidence of tampering, either by the application of solvents, mechanical abrasion, heat, or when pressure is applied.

Business document having security features

A high solids content, aqueous, color developer-containing printing inks having as it main ingredients water, a non-volatile diluent and an acidic color developer such as zinc salicylate or a phenolic resin. The high CF printing ink preferably has a 50-70% by weight solids content and may be used as a low-coat-weight CF coating for preparing carbonless copy paper by coating the high solids CF printing ink on a support sheet at a coat weight of less than 3 gm/m.sup.2.

High solids CF printing ink

A postal card or mailer construction comprising a cover sheet adhered to a base sheet is provided which is simple to manufacture and print by automated systems and which is capable of providing hidden confidential information to an addressee. Upon receipt, the addressee can readily peel back the cover sheet and read the confidential information. Through the use of a releasable adhesive, once delaminated, all surfaces of the postal card construction have nontacky surfaces, permitting easy handling and storage by the recipient. The construction includes a base sheet, a cover sheet overlying the base sheet, and a releasable adhesive securing a first surface of the cover sheet to a first surface of the base sheet such that the cover sheet and base sheet are readily separable. The releasable adhesive contains therein a first color former composition which, when exposed to a second color developer composition, forms a distinctive color. At least oen of the first and second compositions are contained in a plurality of capsules which rupture upon the application of an impact force on the cover sheet. When an imaging force is applied to the cover sheet, the capsules of the first composition are ruptured, mix with the second composition on the surface of the base sheet, and form a distinctive color to duplicate the information from the imaging force.

Clean release postal card or mailer

A laminate construction is provided which includes a backing sheet, a face sheet covering at least a portion of the backing sheet, and a releasable adhesive securing the face sheet to the backing sheet. The construction also includes first and second compositions which, when combined, form a distinctive color. The compositions are so arranged in the construction so that the application of an imaging force to the face sheet causes the compositions to combine and produce a color in the area beneath the imaging force. The face sheet can be peeled away to provide a nontacky label or the like, while a duplicate copy of the information printed onto the face sheet remains on the backing sheet. The construction may also include one or more intermediate plied which provide additional copies of the information.

Growing community of inventors

Lebanon, OH, United States of America

William F Pinell