The present specification relates to a method for preparing a colorant composition comprising dissolving a first xanthene-based dye having the same number of positive charges and negative charges and a second xanthene-based dye having more negative charges than positive charges by one or more in a first solvent; and precipitating the dissolved first xanthene-based dye and the dissolved second xanthene-based dye in a second solvent, and a colorant composition, a colorant dispersion, a photosensitive resin composition, a color filter and a liquid crystal display device.

Provided are a coloring composition including a pigment, a pigment derivative, and a resin, in which an average primary particle diameter of the pigment is 70 nm or less, and an average primary particle diameter of the pigment derivative is more than 70 nm; a film formed of a coloring composition; a color filter; a method for manufacturing a color filter; a solid-state imaging element; and an image display device.

Provided are a coloring composition including a pigment, a pigment derivative, a resin, and a solvent, in which an average primary particle diameter of the pigment is 70 nm or less, an average primary particle diameter of the pigment derivative is 70 nm or less, and the solvent includes a solvent D1 having a solubility parameter of 18.0 to 26.0 MPa.sup.0.5; a film formed of a coloring composition; a color filter; a method for manufacturing a color filter; a structure body; a solid-state imaging element; and an image display device.

Provided herein are color charts and water color pigment solutions useful, for example, in the calibration of reflectance-based diagnostic analyzers.

A method for treating textile articles including the steps of: (a) providing a laundry care composition comprising a leuco composition; (b) adding the laundry care composition to a liquid medium; (c) placing the textile articles in contact with the liquid medium; (d) depositing at least some portion of the leuco composition onto the textile articles; (e) optionally, rinsing the textile; and (f) drying the textile articles, wherein the leuco composition comprises a leuco colorant with a Photosensitivity Index of greater than or equal to 10.

A color composition including: an organic pigment (A); a dispersant (B); an epoxy compound (C); a solvent (D); and a coloring matter derivative (E), in which a content of the organic pigment (A) is at least 50 mass % with respect to a non-volatile content in the coloring composition, the dispersant (B) contains a dispersant (b1) having an acidic functional group and/or a dispersant (b2) having a basic functional group, and the epoxy compound (C) is at least one compound selected from the group consisting of glycerol polyglycidyl ether, bisphenol-type polyglycidyl ether, and hydrogenated bisphenol-type polyglycidyl ether.

Provided is a colored resin composition including: a resin (A); a colorant (B); and an organic solvent (C), the colored resin composition including at least a bisbenzofuranone-based pigment as the colorant (B), wherein the bisbenzofuranone-based pigment has a crystallite size of 10 nm or more and 25 nm or less in a colored film consisting of a cured product of the colored resin composition, the colored resin composition that has excellent light resistance, a high visible light shielding property, and high near-infrared transmissivity, and causes little transmitted scattered light.

Provided are a coloring photosensitive composition including, a pigment derivative A1 in which a maximum value of a molar light absorption coefficient in a wavelength range of 400 to 700 nm is 3,000 L.Math.mol.sup.−1.Math.cm.sup.−1 or less, a pigment derivative A2 in which a maximum value of a molar light absorption coefficient in a wavelength range of 400 to 700 nm is more than 3,000 L.Math.mol.sup.−1.Math.cm.sup.−1, a pigment, a polymerizable compound, a photopolymerization initiator; a film formed from the coloring photosensitive composition; a color filter; a solid-state imaging element; and an image display device.

An intrinsic fluorescent green fiber includes 98.00 to 99.00 parts by weight of a carrier, 0.10 to 0.20 parts by weight of a yellow colorant, 0.08 to 0.20 parts by weight of a blue colorant, and 1.00 to 1.50 parts by weight of a titanium dioxide. When a content of 0.10 wt % to 0.20 wt % of the yellow colorant and a balance of the carrier are mixed to form a yellow fiber, the L*, a*, and b* values of the yellow fiber are respectively between 101.27 and 101.72, between −17.61 and −13.47, and between 89.84 and 108.79. When a content of 0.08 wt % to 0.20 wt % of the blue colorant and a balance of the carrier are mixed to form a blue fiber, the L*, a*, and b* values of the blue fiber are respectively between 55.60 and 66.80, between −22.69 and −22.70, and between −37.50 and −31.80.

The present invention relates to modified proppants and methods of using the modified proppants that use metal ligand tracers to characterize subterranean fluid flow. The metal and ligands are best chosen to be a strongly-coordinating, chelating ligand with a functional group for the chosen flow environment.