Eastman-Kodak Company

Edgardo Lopez

David Erdtmann

Steven Evans

Richard C Van Hanehem

Hwei-Ling Yau

Thomas W Martin

Hugh G McGuckin

Bruce C Campbell

John S Badger

Paul A Schwartz

Chris G Han-Adebekun

An ink jet printing method having the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with an ink-receiving element having a support having thereon a continuous, coextensive, porous ink-receiving layer having interconnecting voids; C) loading the printer with an ink jet ink composition of water, a humectant, a pigment and particles of a water-dispersible polymer; and D) printing on the ink-receiving layer using the ink jet ink in response to the digital data signals.

Ink jet printing method

An ink jet ink composition comprising water, a humectant, a polyvalent transition metal complex of an 8-heterocyclylazo-5-hydroxy-quinoline and an anti-kogation material comprising an alkali metal salt of a monobasic organic or inorganic acid. Examples of anti-kogation materials useful in the invention include sodium hexanoate, sodium sulfate, sodium propionate, sodium benzoate, sodium p-toluenesulfonate, sodium acetate, sodium bromide, sodium nitrate, potassium nitrate, lithium nitrate, lithium acetate, tetramethylammonium acetate and tetrabutylammonium bromide.

Metal complex for ink jet ink

Color reversal photographic films are processed using a reversal solution comprising stannous ion and a quaternary ammonium compound as the sole biocide, to reduce formation of biogrowth.

Photographic reversal solution and method of use

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Hilton, NY, United States of America

Edgardo Lopez