Nu-kote International, Inc.

Burroughs, Inc.

Michael J McElligott

Donald E Snyder, Jr

Victor J Tkalenko, Jr

William H Mowry, Jr

Joseph Baran

Thomas W Martin

James T McCarthy

Terence W Andrews

Robert E Glavin

Dennis M Lengyel

John Lewis Williams

Philip Theodore

Russell William Gauger, Jr

Ronald E Coutta

Curtis W Ingalls

The invention relates to a multiple pass printing process for generating MICR-readable indicia using a MICR ink-jet ink composition with a magnetic pigment loading less than that needed to generate the nominal signal level according to the ANSI standard with single pass printing, and to a printed substrate, prepared by the process, which bears MICR-readable indicia having at least two layers of the MICR ink-jet ink composition and which demonstrates a MICR signal level of greater than or equal to the nominal signal value according to the ANSI standard.

Multiple pass aqueous MICR inkjet ink printing

A non-aqueous ink jet ink for printing lithographic printing plates. The formulation provides for ink jet printing using a solvent based ink in a drop on demand printer. The ink exhibits excellent physical properties and good stability over a range of times and temperatures.

Non-aqueous ink jet ink for imaging a lithographic printing plate

The invention relates to an ink-jet ink composition suitable for use in secondary transfer processes wherein the ink-jet ink composition contains a pre-dispersion containing at least a sublimation colorant combined with an ink-jet ink containing at least a non-sublimable colorant. Upon printing, a monochrome intermediate transfer substrate is created. From this monochrome substrate, a multi-color image can be transferred to a permanent substrate with the application of heat and pressure. The monochrome intermediate transfer image is created by the non-sublimable colorant upon printing. The multi-color permanent image is generated as elevated temperatures and pressure of the transfer process cause the sublimation colorant to sublime and bond to the permanent substrate.

Dye sublimation ink-jet ink and dye sublimation transfer process using the same

A process for preparing an aqueous ink-jet ink composition for MICR applications is provided comprising preparing a metal oxide pre-dispersion combined with an aqueous ink-jet ink composition, wherein the metal oxide pre-dispersion contains metal oxide pigment or particles of a very small particle size, about 0.5&mgr; or less, and exhibiting high remanence of at least 20 emu/g. The metal oxide particles may be coated with a hydrophilic coating, and the pre-dispersion may contain at least one surfactant to aid in the dispersion of the metal oxide particles. Special processing involving the use of conventional and non-conventional grinding techniques and various filtration techniques enhance the compatibility of the MICR ink-jet ink with the ink-jet equipment, resulting in superior ink life and print quality.

Process for the preparation of aqueous magnetic ink character recognition ink-jet ink compositions

An aqueous ink-jet ink composition for MICR applications is provided comprising a metal oxide pre-dispersion combined with an aqueous ink-jet ink composition, wherein the metal oxide pre-dispersion contains metal oxide pigment or particles of a very small particle size, at least one surfactant to aid in the aid in the dispersion of the metal oxide particles. Particularly, the surfactant component is a combination of an anionic surfactant and an anionic-nonionic surfactant, or may be a combination of other types of surfactants.

Aqueous magnetic ink character recognition ink-jet ink composition containing a combination of special surfactants

An aqueous ink-jet ink composition for MICR applications is provided comprising a metal oxide pre-dispersion combined with an aqueous ink-jet ink composition, wherein the metal oxide pre-dispersion contains metal oxide pigment or particles of a very small particle size, about 0.5&mgr; or less, and exhibiting high remanence of at least 20 emu/g. The metal oxide particles may be coated with a hydrophilic coating, and the pre-dispersion may contain at least one surfactant to aid in the dispersion of the metal oxide particles. Also provided are various processing techniques to enhance the MICR ink performance, including conventional and non-conventional grinding techniques and various filtration techniques.

Aqueous magnetic ink character recognition ink-jet ink composition

The present invention relates to a ribbon for non-impact printing of documents of the type handled by magnetic reader/sorter apparatus comprising a polycarbonate substrate and a magnetic ink layer with a thin film of metal disposed between said substrate and said ink layer. The substrate consists essentially of a polycarbonate polymer containing from about 20 to about 40 percent by weight of an electrically conductive carbon black and the magnetic ink consists essentially of from about 60 to about 80 parts by weight of a solvent comprising at least member selected from the group consisting of aliphatic alcohols having from 1 to about 5 carbon atoms, and aromatic hydrocarbons having from about 6 to about 10 carbon atoms; about 10 to about 30 parts by weight of a polyamide polymer; from about 10 to about 30 parts by weight of a magnetic oxide; from about 1 to about 4 parts by weight of a plasticizer selected from the groups consisting of azelate, phthalate, palmitate and adipate esters, from about 0 to about 10 parts by weight of carbon black and from about 0 to about 5 parts by weight of an alcohol soluble dye.

Magnetic ink for non impact printing of documents

The present invention relates to a ribbon for non-impact printing of documents of the type handled by magnetic reader/sorter apparatus comprising a polycarbonate substrate and a magnetic ink layer with a thin film of metal disposed between said substrate and said ink layer. The substrate consists essentially of a polycarbonate polymer containing from about 20 to about 40 percent by weight of an electrically conductive carbon black and the magnetic ink consists essentially of from about 60 to about 80 parts by weight of a solvent comprising at least member selected from the group consisting of aliphatic alcohols having from 1 to about 5 carbon atoms, and aromatic hydrocarbons having from about 6 to about 10 carbon atoms; about 10 to about 30 parts by weight of a polyamide polymer; from about 10 to about 30 parts by weight of a magnetic oxide; from about 1 to about 4 parts by weight of a plasticizer selected from the group consisting of azelate, phthalate, palmitate and adipate esters, from about 0 to about 10 parts by weight of carbon black and from about 0 to about 5 parts by weight of an alcohol soluble dye.

Ribbon for non-impact printing of magnetic ink

Disclosed is a protected document such as a negotiable instrument, a title instrument, identification document or other documents which should be kept secure from illegal copying by color copiers. The method of making the document comprising preprinting a 'void' or other warning or cancellation phrase pattern in half tone or multitone on the document and camouflaging this pattern is also disclosed.

Protected document and method of making same

Disclosed is a protected document such as a negotiable instrument, a title instrument, indentification document or other documents which should be kept secure from illegal copying by color copiers. The method of making the document comprising preprinting a 'VOID' or other warning or cancellation phrase pattern in half tone or multitone on the document and camouflaging this pattern is also disclosed.

Disclosed is a protected document such as a negotiable instrument, a title instrument, identification document or other documents which should be kept secure from illegal copying by color copiers. The method of making the document comprising preprinting a 'VOID' or other warning or cancellation phrase pattern in half tone or multitone on the document and camouflaging this pattern is also disclosed.

Protected document

A system to protect documents such as negotiable instruments, title instruments and identification documents from illegal copying by color copiers and alteration such as amount or signature particularly computer printout documents comprising preprinting a 'VOID' pattern over the amount and/or signature area of the document in solvent insoluble or color change ink. The VOID is printed with a camouflage pattern overcoating. The camouflage pattern overcoating may be a pattern or solid coating. It may be a coating on the undersurface of the Mylar film overlay of the 'VOID'. Thereafter the disclosure contemplates adhering the Mylar film to the document to be protected over the amount and/or signature area with cold pressure. Color copying by machine is prevented by the use of colors in the inks which are below the critical density of the copier, so as to verify the authenticity of a document and prevent fraudulent use of a copy.

Protection system for documents

Disclosed is a protected document such as a negotiable instrument, a title instrument, identification document or other documents which should be kept secure from illegal copying by color copiers. The method of making the document comprising preprinting a 'VOID' or other warning or cancellation phrase pattern in half tone or multitone on the document and camouflaging this pattern is also disclosed. The document bears a watermark which adds to the security of the system.

Protected document bearing watermark and method of making

Disclosed is a film composition for carbon paper and other uses wherein dispersion grade polyvinyl chloride resin is mixed with glycerin and other water soluble plasticizers and extended with water. Substitute plasticizers are ethylene glycol, low molecular weight polyglycols including di-ethylene glycol and tri-ethylene glycol, and polyether alcohols.

Growing community of inventors

Rochester, NY, United States of America

Michael J McElligott