Eastman-kodak Company

Karen J Klingman

Richard C Reem

Susan K Mroczek

Steven Evans

Richard L Parton

David Erdtmann

Xiaoru Wang

James West Blease

David A Stegman

John D Lewis

Thomas R Dobles

Teresa A Smith

Bruce E Kahn

An ink jet ink composition comprising water, a humectant, and composite colorant polymer particles, wherein the composite colorant polymer particles having a colorant phase and a polymer phase, the polymer phase of the particles being formed in situ in the presence of the colorant, the composite colorant polymer particles not increasing in mean particle size more than about 50% when said ink is incubated for one week at 60&#xb0; C.

Ink jet ink composition

A pigment-based ink jet ink set and image-recording element combination is described, wherein the ink jet image-recording element has a gloss value of at least 5 when measured at 60&#xb0;, and wherein each ink in the ink set has a normalized differential specular reflectance, N&#x394;R(X), of less than 1.25. N&#x394;R(X) is defined as the maximum value within a set of N&#x394;R(Xn) values in which each N&#x394;R(Xn) is the normalized specular reflectance for a density patch of a printed test image. The printed test image consists of a series of at least eleven density patches printed such that the ink laydown of the patches increases incrementally, from no ink laydown to a maximum level generating a density of at least 1.5; and wherein N&#x394;R(Xn) for each patch is determined according to:where, over the visible spectral region between 390 nm and 720 nm for patch Xn, R(Xn) is the maximum, R(Xn) is the minimum, and R(Xn) is the average specular reflectance.

Combination ink set/image-recording element for ink jet printing

Ink set for ink jet printing

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 an ink-receiving layer, C) loading the printer with an ink jet ink set for color printing having: (a) a yellow ink having a carrier and a yellow azoaniline dye; (b) a magenta ink having a carrier and a magenta anthrapyridone dye; and (c) a cyan ink having a carrier and Direct Blue 307; and D) printing on the ink-receiving layer using the ink jet ink in response to the digital data signals.

Ink jet printing method

The invention relates to a method of forming an emulsion comprising providing a silver chloride emulsion, said emulsion comprising silver chloride grains having a grain volume of 0.001 &mgr;m,to 2.2 &mgr;m,, adding chemical and spectral sensitizing materials, heating said emulsion to sensitize said grains, cooling said emulsion, and then bringing said emulsion into contact with iodide and bromide.

Post sensitization use of iodide in silver chloride emulsion sensitization

A photographic element comprises at least one silver halide emulsion layer in which: a) the silver halide has been spectrally sensitized with a first blue sensitizing dye having a .lambda..sub.1 less than or equal to about 475 nm and a second blue sensitizing dye having a .lambda..sub.2, wherein the following relationship is met: ##EQU1## wherein .lambda..sub.1 is the wavelength in nanometers (nm) of maximum absorption of a silver halide emulsion sensitized with the first dye and .lambda..sub.2 is the wavelength of maximum absorption of a silver halide emulsion sensitized with the second dye, with the proviso that neither the first nor the second dye contains selenium. The silver halide emulsion of said layer is chemically sensitized with a gold(I) compound and preferably with the combination of a gold compound and a disulfide compound; and b) the silver halide has been chemically sensitized with a gold compound of formula (I):

Photographic element comprising a mixture of sensitizing dyes

The invention relates to a method of forming an emulsion comprising providing a silver chloride emulsion, said emulsion comprising silver chloride grains having a grain volume of 0.001 .mu.m.sup.3 to 2.2 .mu.m.sup.3, adding chemical and spectral sensitizing materials, heating said emulsion to sensitize said grains, cooling said emulsion, and then bringing said emulsion into contact with iodide and bromide.

Growing community of inventors

Pittsford, NY, United States of America

Karen J Klingman