Abstract: A printing ink for inkjet printing for improving the durability and image quality of an inkjet image including: a) a liquid carrier; b) ionic dye molecules with surface charge dissolved in the liquid carrier; and c) plate-like nanoparticles having parallel main surfaces, and minor edge surfaces, dispersed in the liquid carrier, with the main surfaces of the nanoparticles having a same sign of surface charge as the ionic dye molecule. Durability and image quality of an inkjet image is improved using the inventive ink, while also enabling a stable, printable formulation that does not require milling of the ink colorant.

Abstract: A method of forming a printed image on an image receiving element is disclosed, comprising: providing an image receiving element comprising at least one activatable stiffening and/or thickening layer which comprises a polymer matrix and an activatable material; printing an image over a designated area of said image receiving element, and substantially uniformly and non-imagewise activating said activatable stiffening and/or thickening layer over the designated area of said image receiving element after step (b) to produce a printed image receiving element with an activated stiffened and/or thickened layer.

Abstract: A printing ink for inkjet printing for improving the durability and image quality of an inkjet image comprising: a) a liquid carrier; b) ionic dye molecules with surface charge dissolved in the liquid carrier; and c) plate-like nanoparticles having parallel main surfaces, and minor edge surfaces, dispersed in the liquid carrier, with the main surfaces of the nanoparticles having a same sign of surface charge as the ionic dye molecule. Durability and image quality of an inkjet image is improved using the inventive ink, while also enabling a stable, printable formulation that does not require milling of the ink colorant.

Abstract: An ink composition of an organic solvent and composite colorant polymer particles, wherein the composite colorant polymer particles have 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 having a mean particle size of less than about 200 nm.

Abstract: An imaging member, such as a negative-working printing plate or on-press cylinder, comprises latex polymer-carbon black composite particles. Such imaging members can be prepared with a hydrophilic imaging layer comprised of a heat-sensitive hydrophilic polymer having ionic moieties and the latex polymer-carbon black composite particles as a photothermal conversion material. The latex polymer-carbon black composite particles can be formulated in water or water-miscible solvents without agglomeration with other components such as charged polymers.

Abstract: A process for making composite colorant particles comprising, in order: I) suspending in an aqueous medium, under agitation, finely divided colorant particles to form an aqueous colorant mixture; II) adding to the aqueous colorant mixture an addition polymerization initiator; and III) causing the addition polymerization initiator to form a free radical while continuously introducing continuously to the aqueous colorant mixture a monomer mixture comprising: a) an addition polymerization initiator, and b) at least one ethylenically-unsaturated monomer; thereby forming the composite colorant particles having a colorant phase and a polymer phase.

Abstract: An imaging member, such as a negative-working printing plate or on-press cylinder, comprises latex polymer-carbon black composite particles. Such imaging members can be prepared with a hydrophilic imaging layer comprised of a heat-sensitive hydrophilic polymer having ionic moieties and the latex polymer-carbon black composite particles as a photothermal conversion material. The latex polymer-carbon black composite particles can be formulated in water or water-miscible solvents without agglomeration with other components such as charged polymers.

Abstract: An ink composition of an organic solvent and composite colorant polymer particles, wherein the composite colorant polymer particles have 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 having a mean particle size of less than about 200 nm.

Abstract: A process for making composite colorant particles comprising, in order:

Abstract: The present invention is a polymer latex that includes polymer particles having a core portion and a shell portion. The core portion contains polymerized hydrophobic ethylenically unsaturated monomers with a water solubility less than 1% at room temperature. The shell portion contains polymerized monomers defined by formula (I) wherein X is O or NH, or NCH3, R1 and R2 are H, CH3, C2H5, C3H7, or C4H9, R3 and R4 are H or CH3, n1 and n2 are integers, n1 is from 1 to 4, n2 is from 1 to 20. The polymer particles having a size of less than 50 nm.

Abstract: A polymeric UV absorbing compound which comprises UV absorbing monomeric units of at least 0.05 weight percent of ionic units which have an ionizable group which is ionized at all pH values between 5 to 10. Photographic elements which contain such polymeric compounds and methods of making such polymers and photographic elements, are also provided. The polymeric UV absorbing compounds are directly dispersible in water.

Abstract: Color photographic materials comprise a support bearing a silver halide emulsion and at least one water-dispersible polymeric coupler. The polymeric coupler is formed by polymerization of a mixture of at least one ethylenically unsaturated coupler monomer containing a dye-forming coupler moiety and at least one ionic monomer containing an ionizable functional group, in a water-miscible organic solvent. The polymeric coupler contains less than 10 weight percent of the ionic monomer.

Abstract: Photographic coupler compositions comprise a magenta dye-forming coupler and an alcohol in an amount sufficient to increase the activity of the dye-forming coupler. The alcohol is of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of (a) unsubstituted alkyl and alkenyl groups, (b) alkyl groups containing one or more substitutents selected from the group consisting of aryl groups, alkenyl groups, halogen atoms, alkoxy groups, alkoxy carbonyl groups and acyloxy groups, (c) unsubstituted aryl groups and (d) aryl groups containing one or more substituents selected from the group consisting of alkyl groups, alkoxy groups, alkoxy carbonyl groups and acyloxy groups; and R.sub.2 and R.sub.3 are individually selected from hydrogen and the group of moieties from which R is selected, provided that the total number of carbon atoms contained in R.sub.1, R.sub.2 and R.sub.3 is at least 10.

Abstract: A photographic element comprising a UV absorbing polymer latex which is loaded with a non-polymeric UV absorbing compound. The polymer is a homopolymer or heteropolymer comprising monomeric units containing a 2-hydroxybenzotriazole. The benzotriazole preferably is of the formula I: ##STR1## wherein: the phenyl ring and benzo ring are optionally additionally substituted; and one of m and n is 1, and M and N have the formula: ##STR2## wherein R3 is H or an alkyl group; L is a bivalent linking group; and p is 0 or 1. The elements may additionally have a polmer present (which is preferably different from the UV absorbing polymer) which has a glass transition temperature (T.sub.g) of less than 5.degree. C.

Abstract: A photographic element with particular polymeric ultraviolet absorbers. The ultraviolet absorbers have repeating units of the formula: ##STR1## wherein: X is O or NH;Y is H or halogen;R.sub.1 is selected from the group consisting of H, halogen, alkoxy , straight chain or branched alkyl group of 1 to 8 carbons;R.sub.2 is C.sub.2 -C.sub.10 alkylene which may be straight chain or branched; andR.sub.3 is H or CH.sub.3.Elements of the invention have good fresh Dmin and image dye stability, and the ultraviolet absorbers therein are highly light stable.