Abstract: An ink-jet ink includes a jettable vehicle, a plurality of pigment solids dispersed in the jettable vehicle, and a plurality of structurally related polymers dispersed in the jettable vehicle. Additionally, a system for printing images on a porous photo medium includes a jettable ink and a printhead loaded with the jettable ink.

Abstract: A method for producing printed articles that encompasses providing a first ink composition that contains metal oxide particles with an average particle size in the range of about 3 to about 300 nm; providing a second ink composition that contains colored pigments dispersed in an ink vehicle; providing a printable media having a bottom supporting substrate and an ink-absorbing layer with pore diameters that are smaller than the size of the metal oxide pigment particles and colored pigments; and sequentially applying, on the same print area, the first and the second ink compositions onto said printable media. Also disclosed herein are the printed articles obtained according to the present method.

Abstract: A printed article with metallic luster and gold-like appearance that encompasses a printable media on which a printed feature has been formed with an ink composition. The ink composition contains iron oxide pigment particles that have an average particle 5 size in the range of about 3 to about 300 nm and the printable media contains a bottom supporting substrate and ink-absorbing layer with pore diameters that are smaller than the average size of the iron oxide pigment particles. In such printed article, the ink composition forms onto the printable media a printed feature that has a thickness that is below about 300 nm.

Abstract: Compositions and methods for forming color images on a substrate capable of development at desired wavelengths or energy levels are disclosed and described. The color forming composition can include a carrier system and a latent pigment with a pendent group, wherein the latent pigment is colorless or pale in color while the pendent group is attached, and wherein the latent pigment is convertible to a colored pigment upon removal of the pendent group. Alternatively, the latent pigment can have multiple states of conjugation where the latent pigment is colorless or pale in a first conjugation state, and colored in a second conjugation state. The color forming compositions are useful in forming images on a wide variety of substrates, such as optical disks.

Abstract: Phthalocyanine dyes represented by the general structures (I) to (IV) and inkjet ink formulation including the phthalocyanine dyes.

Abstract: Phthalocyanine dyes, naphthalocyanine dyes, and/or bridged phthalocyanine/naphthalocyanine dyes represented by one of the general structures I to XVII, inkjet ink formulation comprising said dyes, and detection systems using said dyes are disclosed and described.

Abstract: The present disclosure includes naphthalocyanine dyes or fused naphthalocyanine dyes represented by one of the general structures I to XV; inkjet ink formulations including the naphthalocyanine dyes; and a detection system (300) including the dyes.

Abstract: A method of security printing can comprise the steps of printing a transparent ink onto a portion of a coated substrate resulting in printed region and an unprinted region, where the transparent ink is devoid of dyes, pigments, ceramics, metallics, and fluorescents; illuminating both the printed region and the unprinted region of the substrate, where the printed region scatters more light than the unprinted region creating a contrast; and detecting the contrast with a sensor that is sensitive to detecting light scattering differences between the printed region and the unprinted region.

Abstract: An ink for use in combination with, for example, an ink-jet printer. The ink comprises a carrier, a colorant in the carrier, and a component selected from a group consisting of amines, amides, and combinations thereof.

Abstract: An ink having infrared (IR) absorptivity includes an ink vehicle and an IR absorptive pigment having low visible color. According to one exemplary embodiment, the IR absorptive pigment includes an antimony-containing tin oxide.

Abstract: A phthalocyanine dye with extended conjugation includes one or both of a phthalocyanine component and a naphthalocyanine component and at least one water soluble substituent on an aryl group of the phthalocyanine dye. The extended conjugation of the phthalocyanine dye includes at least one benzene moiety of the component being one of (a) joined to an aryl group either indirectly using an alkylene linkage or directly, (b) joined to a benzene moiety of another of the components to form an oligomer of the components, and (c) a combination of (a) and (b). The extended conjugation shifts absorption of the phthalocyanine dye to greater than 800 nm.

Abstract: An ink level sensing device and associated method. The ink level sensing device includes a near infrared illumination source that emits near infrared light, and a container configured to accommodate a supply of ink containing light absorption material. The device further includes a protruding chamber adjacent to the container. The protruding chamber is configured to accommodate a portion of the supply of ink accommodated by the container. The device also includes a sensor that is configured to receive a signal based on an amount of the light that passes through the protruding chamber. The method includes emitting a light from a near infrared illumination source and directing the light toward a protruding chamber of the ink supply. The method further includes sensing an amount of the light that passes through the protruding chamber in the ink supply.

Abstract: The methods and compositions of the present invention provide an ink jet ink having a colorant, an aqueous vehicle, and water stable and water soluble phthalocyanine and/or naphthalocyanine dye chromophores.

Abstract: Phthalocyanine dyes represented by the general structures (I) to (IV) and inkjet ink formulation including the phthalocyanine dyes.

Abstract: Phthalocyanine dyes, naphthalocyanine dyes, and/or bridged phthalocyanine/naphthalocyanine dyes represented by one of the general structures I to XVII, inkjet ink formulation comprising said dyes, and detection systems using said dyes are disclosed and described.

Abstract: A coating composition for optical recording includes a uniform dispersion of polymer particles in a liquid, a quantity of dye particles uniformly dispersed in the liquid, the dye particles being soluble in the polymer but substantially insoluble in the liquid, and a quantity of radiation absorber material adapted to absorb radiation at a wavelength of a laser for optical recording of an image.

Abstract: An ultraviolet (UV) curable ink having infrared (IR) sensitivity includes a UV light curable matrix, a UV photoinitiator, and an IR sensitive dye.

Abstract: A composite color includes a first colored ink and a second colored ink. The first colored ink exhibits a color that is different from that exhibited by the second colored ink. The first colored ink includes pigment particles either formulated at a basic pH so that a surface of the pigment particles carries a net negative charge or formulated at an acidic pH so that a surface of the pigment particles carries a net positive charge; and the second colored ink includes pigment particles either formulated at an acidic pH so that a surface of each of the pigment particles carries a net positive charge or formulated at a basic pH so that a surface of the pigment particles carries a net negative charge. The first colored ink and the second colored ink have opposite charges. The composite color exhibits enhanced color richness when printed on a substrate.

Abstract: A method of producing a print medium to reduce problems associated with the gradual dye-fade and color-shift of inks over time, and to provide improved resistance to physical handling is provided Specifically, a method can comprise steps of coating a media substrate with a porous coating composition of semi-metal oxide or metal oxide particulates to form a porous ink receiving layer, coating the porous ink-receiving layer with a latex layer configured to allow an ink-jet ink to be received at the porous ink-receiving layer, printing ink-jet ink on at least a portion of the latex layer to form ink-associated latex regions exclusive of non-printed latex regions, and heating the latex layer. The ink-jet ink can include an ink vehicle, a colorant, and a film promoting additive that lowers the film forming temperature of the latex particulates in the ink-associated latex regions. Upon heating, the ink-associated latex regions form a continuous film, and non-printed latex regions do not form a continuous film.

Abstract: A multicolor imaging system is described wherein at least two, and preferably three, different image-forming layers of a thermal imaging member are addressed at least partially independently by a thermal printhead or printheads from the same surface of the imaging member by controlling the temperature of the thermal printhead(s) and the time thermal energy is applied to the image-forming layers. Each color of the thermal imaging member can be printed alone or in selectable proportion to the other color(s). Novel thermal imaging members are also described.