Abstract: An inkjet ink set including a cyan ink, a magenta ink and a yellow ink, wherein each of said cyan, magenta and yellow inks individually comprises at least 65% water, between 1% and 5% by weight of a dispersed pigment colorant, a surfactant that reduces static surface tension, a dynamic surface tension reducing agent distinct from the surfactant, and at least one humectant distinct from the surfactant and the dynamic surface tension reducing agent; and wherein each of said cyan, magenta and yellow inks is characterized by exhibiting a viscosity normalized dynamic surface tension at surface refresh ages of 0.01 s of less than 23.0 mN/(m*cP); and wherein the average viscosity normalized dynamic surface tension at a surface refresh age of 0.01 s for said cyan, magenta and yellow inks taken together is less than 22.0 mN/(m*cP).

Abstract: An aqueous inkjet ink suitable for priming photo-images on both photo-glossy receivers and plain papers, said ink including at least 50% by weight water, between 0.5% and 8% by weight of 1,2-pentanediol, a humectant distinct from said 1,2-pentanediol, and between 0.2 and 5% by weight of a dispersed pigment colorant, said dispersed pigment colorant exhibiting an average volume weighted 50th percentile particle size of between 0.001 and 0.075 microns.

Abstract: An aqueous inkjet ink suitable for printing photo-images on both photo-glossy receivers and plain papers, said ink comprising at least 50% by weight water, between 0.5% and 8% by weight of 1,2-pentanediol, a humectant distinct from said 1,2-pentanediol, and between 0.2 and 5% by weight of a dispersed pigment colorant, said dispersed pigment colorant exhibiting an average volume weighted 50th percentile particle size of between 0.001 and 0.075 microns.

Abstract: An inkjet ink set comprising a cyan ink, a magenta ink and a yellow ink, wherein each of said cyan, magenta and yellow inks individually comprises at least 65% water, between 1% and 5% by weight of a dispersed pigment colorant, a surfactant that reduces static surface tension, a dynamic surface tension reducing agent distinct from the surfactant, and at least one humectant distinct from the surfactant and the dynamic surface tension reducing agent; wherein said surfactant, said dynamic surface tension reducing agent and said humectant can be the same or different between said cyan, magenta and yellow inks; and wherein each of said cyan, magenta and yellow inks is characterized by exhibiting a viscosity normalized dynamic surface tension at surface refresh ages of 0.01 s of less than 23.0 mN/(m*cP); and wherein the average viscosity normalized dynamic surface tension at a surface refresh age of 0.01 s for said cyan, magenta and yellow inks taken together is less than 22.0 mN/(m*cP).

Abstract: The invention relates to an ink composition containing a multimetallic oligomeric or polymeric azo colorant wherein the colorant is derived from the polymerization reaction of a polyvalent metal cation with a dimeric tridentate ligand containing a coordinating azo group.

Abstract: A water based inkjet ink set with excellent image stability, durability and quality, comprising at least one cyan ink, at least one magenta ink, at least one yellow ink, at least one black ink, and at least one colorless protective ink, wherein: (a) the cyan, magenta, yellow, and black inks each comprise a pigment colorant; (b) the cyan, magenta, yellow, black, and colorless protective inks each comprise a polymeric binder additive; and (c) the surface tensions of the inks have the following relationships: (i) the dynamic surface tension at 10 milliseconds surface age for all inks of the ink set is greater than or equal to 35 mN/m, (ii) the static surface tensions of the yellow ink and of the colorless protective ink are at least 2.0 mN/m lower than the static surface tensions of the cyan, magenta and black inks of the ink set and (iii) the static surface tension of the colorless protective ink is at least 1.0 mN/m lower than the static surface tension of the yellow ink.

Abstract: The invention relates to an ink composition comprising solubilized yellow dyes for inks with improved ozone and light stability.

Abstract: This invention relates to an ink composition comprising a dye represented by Formula I: wherein R1 is independently a non-metallic substituent; s is 0, 1, 2, 3, or 4; R2 is hydrogen or a non-metallic substituent; R3 is a substituted or unsubstituted aromatic or heterocyclic group with the proviso that if R3 is a quinoline moiety, the azo group is not bonded to the 5, 6, 7 or 8 position of the quinoline ring; wherein the dye must bear at least one ionizable group that is capable of imparting water solubility to the dye. It also relates to dyes which comprise a specific subset of the above dyes.

Abstract: A method of processing a silver bromoiodide photographic element comprising contacting the photographic element with a color developer for less than 120 seconds; wherein the photographic element comprises a support and more than one dye forming unit, and wherein the dye forming unit closest to the support contains an electron transfer agent releasing compound represented by the formula: CAR-(L)n-ETA wherein: CAR is a carrier moiety which is capable of releasing -(L)n-ETA on reaction with oxidized developing agent; L is a divalent linking group, n is 0, 1, or 2; and ETA is a releasable 1-aryl-3-pyrazolidinone electron transfer agent having a calculated log partition coefficient (c log P) greater than or equal to 2.40 bonded to L or CAR through either the nitrogen atom in the 2-position or the oxygen attached to the 3-position of the pyrazolidinone ring.

Abstract: An ink jet ink composition of water, humectant and a self-assembling colorant that is capable of spontaneously forming a nanoparticulate dispersion without any prior physical attrition or surface modification, the colorant having the formula: (A)m—Q—(Z)n wherein: Q represents a chromophore; each A independently represents an organic or inorganic group capable of hydrogen bonding or other non-covalent bonding; each Z independently represents an organic or inorganic group capable of electrostatic bonding; and m and n each independently represents an integer from 0 to 10; with the proviso that n+m is at least 1; and with the further proviso that at least about 50 wt. % of the colorant is present in the composition as particles.

Abstract: An ink jet printing process having the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with ink jet recording elements having a support having thereon an image-receiving layer; C) loading the printer with an ink jet ink composition of water, humectant and a self-assembling colorant that is capable of spontaneously forming a nanoparticulate dispersion without any prior physical attrition or surface modification, the colorant having the formula: (A)m—Q—(Z)n wherein: Q represents a chromophore; each A independently represents an organic or inorganic group capable of hydrogen bonding or other non-covalent bonding; each Z independently represents an organic or inorganic group capable of electrostatic bonding; and m and n each independently represents an integer from 0 to 10; with the proviso that n+m is at least 1; and with the further proviso that at least about 50 wt.

Abstract: A color photothermographic element comprising at least three light-sensitive units which have their individual sensitivities in different wavelength regions, each of the units comprising at least one light-sensitive silver-halide emulsion, binder, and dye-providing coupler, and a blocked developer in the presence of a thermal solvent represented by the following structure: wherein the groups are as defined in the specification to promote the thermal development of the photothermographic element.

Abstract: This invention relates to an imaging element comprising an imaging layer having associated therewith a blocked polymeric compound in which the blocking group, between the developing agent and the polymeric backbone, is heteroaromatic. Such compounds have good reactivity and can by used to block photographically useful compounds such as developing agents until thermally activated under preselected conditions. Compounds according to the present invention are especially useful in color photothermographic imaging elements.

Abstract: This invention provides a black and white silver halide photographic display element comprising a support and a layer on top of said support comprising baryta and a yellow pigment represented by Formula I wherein each of R1, R2, and R5 independently represents a halogen atom, or a substituted or unsubstituted alkyl, alkenyl, aryl, aralkyl, cycloalkyl, alkoxy, or alkyl amino group of 1 to 8 carbon atoms, or a substituted or unsubstituted aminocarbonyl, alkoxycarbonyl or alkylthio group of 2 to 10 carbon atoms, or a substituted or unsubstituted alkylsulfonyl, arylsulfonyl or sulfamoyl group of 1 to 8 carbon atoms, or a nitro, amino, acetamido, hydroxy, cyano, carboxy, carboxylate, sulfonic acid, or sulfonate group, additionally pairs of R1 or R2 may represent the non-metallic atoms necessary to complete a substituted or unsubstituted ring system containing at least one 5- or 6-membered heterocyclic or carbocylic fused ring; and n, m and r are independently 0 to 5.

Abstract: An ink jet printing process having the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with ink jet recording elements having a support having thereon an image-receiving layer; C) loading the printer with an ink jet ink composition including water, humectant and a metallized, phthalocyanine colorant, the metallized, phthalocyanine colorant having the formula: MPc(SO3X)a(SO2NRR′)b wherein: M represents a metal; Pc represents a phthalocyanine nucleus; each X independently represents hyrdrogen, alkali metal or an organic cation; a is from 0 to 3; b is from 1 to 4; each R independently represents a substituted or unsubstituted alkyl group having from 1 to about 15 carbon atoms, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group; and each R′ independently represents R or hydrogen; with the proviso that a+b is an average of from 2 to 4; and with the further proviso that at least about 50 wt.

Abstract: An ink jet ink composition including water, humectant and a metallized, phthalocyanine colorant, the metallized, phthalocyanine colorant having the formula: MPc(SO3X)a(SO2NRR′)b wherein: M represents a metal; Pc represents a phthalocyanine nucleus; each X independently represents hydrogen, alkali metal or an organic cation; a is from 0 to 3; b is from 1 to 4; each R independently represents a substituted or unsubstituted alkyl group having from 1 to about 15 carbon atoms, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group; and each R′ independently represents R or hydrogen; with the proviso that a+b is an average of from 2 to 4; and with the further proviso that at least about 50 wt. % of the metallized, phthalocyanine colorant is present in the composition as particles.

Abstract: An ink jet ink composition of water, humectant and a self-assembling colorant that is capable of spontaneously forming a nanoparticulate dispersion without any prior physical attrition or surface modification, the colorant having the formula: (A)m-Q-(Z)n wherein: Q represents a chromophore; each A independently represents an organic or inorganic group capable of hydrogen bonding or other non-covalent bonding; each Z independently represents an organic or inorganic group capable of electrostatic bonding; and m and n each independently represents an integer from 0 to 10; with the proviso that n+m is at least 1; and with the further proviso that at least about 50 wt. % of the colorant is present in the composition as particles.

Abstract: An ink jet printing process having the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with ink jet recording elements having a support having thereon an image-receiving layer; C) loading the printer with an ink jet ink composition of water, humectant and a self-assembling colorant that is capable of spontaneously forming a nanoparticulate dispersion without any prior physical attrition or surface modification, the colorant having the formula: (A)m-Q-(Z)n wherein: Q represents a chromophore; each A independently represents an organic or inorganic group capable of hydrogen bonding or other non-covalent bonding; each Z independently represents an organic or inorganic group capable of electrostatic bonding; and m and n each independently represents an integer from 0 to 10; with the proviso that n+m is at least 1; and with the further proviso that at least about 50 wt.

Abstract: An ink jet ink composition including water, humectant and a metallized, phthalocyanine colorant, the metallized, phthalocyanine colorant having the formula: MPc(SO3X)a(SO2NRR′)b wherein: M represents a metal; Pc represents a phthalocyanine nucleus; each X independently represents hydrogen, alkali metal or an organic cation; a is from 0 to 3; b is from 1 to 4; each R independently represents a substituted or unsubstituted alkyl group having from 1 to about 15 carbon atoms, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group; and each R′ independently represents R or hydrogen; with the proviso that a +b is an average of from 2 to 4; and with the further proviso that at least about 50 wt. % of the metallized, phthalocyanine colorant is present in the composition as particles.

Abstract: An ink jet printing process having the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with ink jet recording elements having a support having thereon an image-receiving layer; C) loading the printer with an ink jet ink composition including water, humectant and a metallized, phthalocyanine colorant, the metallized, phthalocyanine colorant having the formula: MPc(SO3X)a(SO2NRR′)b wherein: M represents a metal; Pc represents a phthalocyanine nucleus; each X independently represents hydrogen, alkali metal or an organic cation; a is from 0 to 3; b is from 1 to 4; each R independently represents a substituted or unsubstituted alkyl group having from 1 to about 15 carbon atoms, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group; and each R′ independently represents R or hydrogen; with the proviso that a+b is an average of from 2 to 4; and with the further proviso that at least about 50 wt.