Abstract: The present disclosure is drawn to methods and compositions directed at durable ink-jet inks. As such, an ink-jet ink can have a liquid vehicle, a colorant dispersed or dissolved in the liquid vehicle, a high Tg polymer having a Tg of at least 45.degree. C. dispersed in the liquid vehicle, and a near-infrared absorbing dye in the liquid vehicle. The ink can be formulated such that when printed on a substrate and irradiated with a near-infrared energy source, the near-infrared absorbing dye generates enough heat to uniformly melt the high Tg polymer, thereby enhancing the durability of ink-jet ink printed on the substrate.

Abstract: A water-soluble phthalocyanine dye or naphthalocyanine dye with near-infrared absorption comprises at least one complexed unit. Each unit comprises a phthalocyanine or a naphthalocyanine moiety and a metal atom complexed thereto and having a valency of at least three, with two valencies complexed to the phthalocynanine ring or the naphthalocyanine ring, each unit joined to another through a fused ring, at least one valency attached to water-soluble axial ligands. The dyes to may be employed in inkjet inks in conjunction with colorants.

Abstract: A water-soluble phthalocyanine dye or naphthalocyanine dye with near-infrared absorption comprises at least one complexed unit. Each unit comprises a phthalocyanine or a naphthalocyanine moiety and, optionally, a metal atom complexed thereto and, if present, having a valency of from 1 to 5, with two valencies complexed to the phthalocyanine ring or the naphthalocyanine ring. Each unit has two linker moieties on opposite sides or adjacent sides of the unit, wherein water-soluble groups are present on at least one of the linkers, on the metal atom, and optionally on the phthalocyanine or naphthalocyanine moiety.

Abstract: An ink set with near infrared detection capability is disclosed. The ink set includes a cyan ink including a cyan colorant, a magenta ink including a magenta colorant, and a yellow ink including a yellow colorant, each of the colorants having maximum light absorbance in the visible wavelength range of about 400 to 750 nm, wherein each of the cyan, magenta and yellow inks includes a near infrared (NIR) absorbing pigment, which is different in spectral absorption characteristic from the colorant and absorbs light in the wavelength range of about 750 to 1200 nm.

Abstract: An ink set with near infrared detection capability is disclosed. The ink set includes a cyan ink including a cyan colorant, a magenta ink including a magenta colorant, and a yellow ink including a yellow colorant, each of the colorants having maximum light absorbance in the visible wavelength range of about 400 to 750 nm, wherein each of the cyan, magenta and yellow inks includes a near infrared (NIR) absorbing pigment, which is different in spectral absorption characteristic from the colorant and absorbs light in the wavelength range of about 750 to 1200 nm.

Abstract: A pigment dispersion containing milled particles of near infrared (NIR) absorbing pigment and an anionic surfactant of asymmetric structure as dispersant for the pigment, and a milling method for making the same are disclosed.

Abstract: A pigment dispersion containing milled particles of near infrared (NIR) absorbing pigment and an anionic surfactant of asymmetric structure as dispersant for the pigment, and a milling method for making the same are disclosed.

Abstract: Mixed phthalocyanine and naphthalocyanine water-soluble dyes with near-infrared absorption comprise four isoindole units linked together in a large ring to form a phthalocyanine macrocycle. At least one benzene ring is linked to an isoindole unit and at least one naphthalene ring is linked to another isoindole unit. The remaining two isoindole units each have a benzene ring or a naphthalene ring linked thereto, in any combination. A metal atom is optionally complexed to the phthalocyanine macrocycle.

Abstract: Polyphenylated phthalocyanine water-soluble dyes with near-infrared absorption comprise four isoindole units linked together in a large ring to form a phthalocyanine macrocycle, with either four anthracenyl groups or four naphthacenyl groups each linked to an isoindole, and a metal atom optionally complexed to the phthalocyanine macrocycle.

Abstract: A water-soluble phthalocyanine dye or naphthalocyanine dye with near-infrared absorption comprises at least one complexed unit. Each unit comprises a phthalocyanine or a naphthalocyanine moiety and a metal atom complexed thereto and having a valency of at least three, with two valencies complexed to the phthalocynanine ring or the naphthalocyanine ring, each unit joined to another through a fused ring, at least one valency attached to water-soluble axial ligands. The dyes to may be employed in inkjet inks in conjunction with colorants.

Abstract: A water-soluble phthalocyanine dye or naphthalocyanine dye with near-infrared absorption comprises at least one complexed unit. Each unit comprises a phthalocyanine or a naphthalocyanine moiety and, optionally, a metal atom complexed thereto and, if present, having a valency of from 1 to 5, with two valencies complexed to the phthalocynanine ring or the naphthalocyanine ring. Each unit has two linker moieties on opposite sides or adjacent sides of the unit, wherein water-soluble groups are present on at least one of the linkers, on the metal atom, and optionally on the phthalocyanine or naphthalocyanine moiety.

Abstract: The present disclosure is drawn to methods and compositions directed at durable ink-jet inks. As such, an ink-jet ink can comprise a liquid vehicle, a colorant dispersed or dissolved in the liquid vehicle, a high Tg polymer having a Tg of at least 45° C. dispersed in the liquid vehicle, and a near-infrared absorbing dye in the liquid vehicle. The ink can be formulated such that when printed on a substrate and irradiated with a near-infrared energy source, the near-infrared absorbing dye generates enough heat to uniformly melt the high Tg polymer, thereby enhancing the durability of ink-jet ink printed on the substrate.

Abstract: Polyphenylated phthalocyanine water-soluble dyes with near-infrared absorption comprise four isoindole units linked together in a large ring to form a phthalocyanine macrocycle, with either four anthracenyl groups or four naphthacenyl groups each linked to an isoindole, and a metal atom optionally complexed to the phthalocyanine macrocycle.

Abstract: Mixed phthalocyanine and naphthalocyanine water-soluble dyes with near-infrared absorption comprise four isoindole units linked together in a large ring to form a phthalocyanine macrocycle. At least one benzene ring is linked to an isoindole unit and at least one naphthalene ring is linked to another isoindole unit. The remaining two isoindole units each have a benzene ring or a naphthalene ring linked thereto, in any combination. A metal atom is optionally complexed to the phthalocyanine macrocycle.

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 substrate has a first dye layer that locationally changes in color to a first color upon exposure to an optical beam at a first power level, and a second dye layer that locationally changes in color to a second color upon exposure to the optical beam at the second power level. The optical beam impinges a region of the substrate to render the region with a color selected from at least one of the first color and the second color. The optical beam impinges the region at a power level selected from at least the first power level and the second power level.

Abstract: A imageable coating includes a first thermochromic layer, a second thermochromic layer, and a thermal averaging layer disposed between said first thermochromic layer and said second thermochromic layer.

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: White ink includes an ink vehicle and pigment particles suspended in the ink vehicle. When the ink is in a liquid state, the particles encapsulate a liquid, and after the liquid in the ink diffuses from the particles, the particles encapsulate air.

Abstract: A color forming composition is provided herein. According to one exemplary embodiment, a color forming composition includes a polymer matrix; an aromatic sulfonylurea activator, a radiation absorber, and an isobenzofuranone color former dye.