Ink jet printing method

Abstract

An ink jet printing method, comprising the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with an ink jet recording element comprising a support having thereon an image-receiving layer; C) loading the printer with 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; and D) printing on the image-receiving layer using the ink jet ink composition in response to the digital data signals. 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.

Dependencies are inferred from the claim text.