Abstract: An azo compound excellent in solubility in solvent and having a high absorbance coefficient is disclosed, as well as an ink containing the azo compound. Such an ink contains a solvent having a relative permittivity at 22° C. and at a measurement frequency of 1 kHz of 3 or less and having a solubility in water at 25° C. of 20 mg/L or less, and an azo compound.

Abstract: The present invention relates to an ink comprising: a solvent having a relative permittivity, measured at a frequency of 1 kHz and a temperature of 22° C., of 3 or less and a solubility in water at 25° C. of 20 mg/L or less; and a specific azo compound.

Abstract: An object of the present invention is to provide an ink containing an azo compound which is excellent in solubility in a solvent and has a high extinction coefficient. The present invention relates to an ink comprising a solvent having a relative permittivity of 3 or less, as measured at a frequency of 1 kHz and at 22° C. and having a solubility in water of 20 mg/L or less at 25° C. and a specific azo compound.

Abstract: The present invention relates to an ink comprising: a solvent having a relative permittivity, measured at a frequency of 1 kHz and a temperature of 22° C., of 3 or less and a solubility in water at 25° C. of 20 mg/L or less; and a specific azo compound.

Abstract: An azo compound excellent in solubility in solvent and having a high absorbance coefficient is disclosed, as well as an ink containing the azo compound. Such an ink contains a solvent having a relative permittivity at 22° C. and at a measurement frequency of 1 kHz of 3 or less and having a solubility in water at 25° C. of 20 mg/L or less, and an azo compound.

Abstract: An object of the present invention is to provide an anthraquinone based dye having excellent solubility in a low polar solvent and having high absorption coefficient and high light resistance and an ink containing the same. The present invention relates to an ink comprising a specific anthraquinone based dye.

Abstract: The invention relates to an ink which comprises: a low-polarity solvent having a relative permittivity of 3 or less at a measuring frequency of 1 kHz; and a specific heterocyclic azo dye.

Abstract: An object of the present invention is to provide an ink containing an azo compound which is excellent in solubility in a solvent and has a high extinction coefficient. The present invention relates to an ink comprising a solvent having a relative permittivity of 3 or less, as measured at a frequency of 1 kHz and at 22° C. and having a solubility in water of 20 mg/L or less at 25° C. and a specific azo compound.

Abstract: An object of the present invention is to provide an anthraquinone based dye having excellent solubility in a low polar solvent and having high absorption coefficient and high light resistance and an ink containing the same. The present invention relates to an ink comprising a specific anthraquinone based dye.

Abstract: The invention provides a specific pyrazole disazo dye which is a yellow dye having excellent solubility in nonpolar solvents, in particular, hydrocarbon solvents, and having a high extinction coefficient. The dye preferably is preferably a pyrazole disazo dye represented by the following general formula (I): (wherein R1 represents a C2-C10 alkyl group; R2 represents a C3-C10 alkyl group; the six-membered ring A represents a phenyl group which may have a substituent; and the six-membered ring B represents a phenylene group which may have a substituent).

Abstract: A colored resin composition is provided which is capable of providing blue pixels of a color filter that have excellent light resistance and which satisfies heat resistance required in color display production steps. A color filter having blue pixels with excellent color purity and transmittance and an organic EL display and a liquid-crystal display device both having satisfactory blue purity are also provided by using the colored resin composition. The colored resin composition for color filter includes (a) a binder resin, (b) a solvent, and a triarylmethane type coloring matter of a specific structure represented by general formula (I). The color filter, organic EL display, and liquid-crystal display device are produced using the colored resin composition.

Abstract: Provided are a dichroic dye composition in which a solubility of the dichroic dye with respect to liquid-crystal is sufficiently high and a wavelength dispersion of absorbance is small in a wide wavelength range, and a black guest-host liquid-crystal composition indicating high order parameters using such a dichroic dye composition and a liquid-crystal element having high contrast. The dichroic dye composition includes at least one dichroic dye selected from Group (I) shown below, at least one dichroic dye selected from Group (II) shown below, and at least one dichroic dye selected from Group (III) shown below.

Abstract: The invention provides a specific pyrazole disazo dye which is a yellow dye having excellent solubility in nonpolar solvents, in particular, hydrocarbon solvents, and having a high extinction coefficient. The dye preferably is preferably a pyrazole disazo dye represented by the following general formula (I): (wherein R1 represents a C2-C10 alkyl group; R2 represents a C3-C10 alkyl group; the six-membered ring A represents a phenyl group which may have a substituent; and the six-membered ring B represents a phenylene group which may have a substituent).

Abstract: Provided are a dichroic dye composition in which a solubility of the dichroic dye with respect to liquid-crystal is sufficiently high and a wavelength dispersion of absorbance is small in a wide wavelength range, and a black guest-host liquid-crystal composition indicating high order parameters using such a dichroic dye composition and a liquid-crystal element having high contrast. The dichroic dye composition includes at least one dichroic dye selected from Group (I) shown below, at least one dichroic dye selected from Group (II) shown below, and at least one dichroic dye selected from Group (III) shown below.

Abstract: The objective of the present invention is to provide a chromatic coloring agent for multicolor laser marking, capable of forming clear markings having two or more different color tones when two or more laser beams having different energy levels are irradiated onto different places of a molded article, a composition for multicolor laser marking, for example, capable of forming a chromatic marking derived from the chromatic coloring agent and a white marking on the surface of a molded article whose base color is black or dark-color based color, a laser marking method, a multicolor-marked molded article and the like. The present chromatic coloring agent has an exothermic peak in the range of 360° C. or higher and 590° C. or lower, as measured by differential thermal analysis.

Abstract: There is provided a laminate for laser marking which is useful for forming displays, for example, on the S-shaped surface of sheet-like molded products made of thermoplastic resins, by suitably employing a thermoplastic polymer composition for laser marking. The present invention relates to a laminate for laser marking, comprising: a layer A comprising a multi-color developing laser marking thermoplastic polymer composition capable of producing markings having two or more different color tones by irradiating thereto two or more laser lights having different energies from each other, the composition satisfying the following requirements (1) and (2): (1) comprising a chromatic colorant, a black substance capable of being dissipated by itself or discolored when exposed to the laser lights, and a thermoplastic polymer at the following mixing ratio, and (2) containing the chromatic colorant and the black substance in amounts of from 0.001 to 3 parts by weight and from 0.

Abstract: Provided are a thermal transfer yellow ink and a thermal transfer sheet capable of providing a thermal transfer recorded product exhibiting a clear yellow tone with a high density by low energy and having an excellent color tone and light resistance, and also capable of exhibiting a favorable green color tone with a high density when mixed with cyan. Provided are a dye composition characterized by comprising a dye having an arylidene pyrazolone skeleton and a dye having a bispyrazolone methine skeleton; a thermal transfer ink characterized by comprising a dye having an arylidene pyrazolone skeleton, a dye having a bispyrazolone methine skeleton, and a medium; and a thermal transfer sheet comprising a substrate and a colorant layer formed thereon, wherein the colorant layer comprises a dye having an arylidene pyrazolone skeleton and a dye having a bispyrazolone methine skeleton.

Abstract: Provided are a thermal transfer yellow ink and a thermal transfer sheet capable of providing a thermal transfer recorded product exhibiting a clear yellow tone with a high density by low energy and having an excellent color tone and light resistance, and also capable of exhibiting a favorable green color tone with a high density when mixed with cyan. Provided are a dye composition characterized by comprising a dye having an arylidene pyrazolone skeleton and a dye having a bispyrazolone methine skeleton; a thermal transfer ink characterized by comprising a dye having an arylidene pyrazolone skeleton, a dye having a bispyrazolone methine skeleton, and a medium; and a thermal transfer sheet comprising a substrate and a colorant layer formed thereon, wherein the colorant layer comprises a dye having an arylidene pyrazolone skeleton and a dye having a bispyrazolone methine skeleton.

Abstract: A water-soluble complex dye capable of forming an image having light resistance, ozone resistance and high saturation; a water-based recording fluid, particularly an ink jet recording fluid, employing such a dye; an ink set employing such a recording fluid; and an ink jet recording method, are presented.

Abstract: A water-soluble complex dye capable of forming an image having light resistance, ozone resistance and high saturation; a water-based recording fluid, particularly an ink jet recording fluid, employing such a dye; an ink set employing such a recording fluid; and an ink jet recording method, are presented. A water-soluble complex dye comprising an azo compound represented by the following formula (1) or its tautomer, and transition metal ions; a water-based recording fluid, particularly an ink jet recording fluid, containing such a dye; and an ink jet recording method employing such a recording fluid.