C09B67/0065

Method for producing halogenated zinc phthalocyanine pigment

A method for producing a halogenated zinc phthalocyanine pigment includes a step of forming a halogenated zinc phthalocyanine crude pigment into a pigment. The halogenated zinc phthalocyanine crude pigment is obtained by depositing a halogenated zinc phthalocyanine, which is synthesized by using a compound that generates an acid by reacting with water, and the aforementioned step includes a pretreatment step of dry-crushing the halogenated zinc phthalocyanine crude pigment by using an attritor and then washing the dry-crushed halogenated zinc phthalocyanine crude pigment with water.

Method of preparing a hybrid inorganic-organic MOF compound with high photoluminescence (PL) quantum yields (PLQY)

A method of preparing a hybrid inorganic-organic metal organic framework compound in the form of 3TCC@MOF-177 solids, with high photoluminescence (PL) quantum yields (PLQY) by mixing a dye in the form of 1-cyano-2-[-terthiophen-2-yl]-vinyl)carboxylic acid with a metal organic framework in the form of MOF-177 in an organic solvent (such as methanol, glycerol, DMF, ethanol) to form a solvent mixture and heating the solvent mixture to obtain the hybrid inorganic-organic Metal (MOF) compound. The PLQY of the hybrid inorganic-organic MOF compound prepared using the method is enhanced by more than 25% than any materials produced by conventional methods.

Pigment preparations

The present invention relates to new pigment preparations based on metal azo pigments and aliphatic C.sub.10-22 monocarboxylic acids, to processes for their production and their use as a yellow pigment for colouring plastics, and to the use of aliphatic C.sub.10-22 monocarboxylic acids for improving the filtration properties of pigment preparations with at the same time improved colour strengths.

CORE-SHELL DYE, PHOTOSENSITIVE RESIN COMPOSITION COMPRISING SAME, PHOTOSENSITIVE RESIN FILM, COLOR FILTER, AND CMOS IMAGE SENSOR
20250313699 · 2025-10-09 ·

Provided are a core-shell dye that includes a core including a compound represented by a specific chemical formula and a shell surrounding the core, a photosensitive resin composition including the same, a photosensitive resin film manufactured using the photosensitive resin composition, a color filter including the photosensitive resin film, and a CMOS image sensor including the color filter.

PIGMENT COMPOSITION, COLORANT, AND LIQUID INK
20250313700 · 2025-10-09 · ·

An object of the present invention is to provide a pigment composition capable of exhibiting good dispersibility and dispersion stability of a pigment in a polyurethane ink or the like, and a colorant and a liquid ink containing the pigment composition. Specifically, the pigment composition of the present invention contains at least one organic pigment selected from the group consisting of benzimidazolone azo pigments and quinacridone pigments, and at least one polycarboxylic acid compound represented by the following Formulae (I) to (II).

##STR00001##

(The descriptions in Formula (I), Formula (II), and Formula (II) are as described herein.)

HEAT-SENSITIVE RECORDING MEDIUM

The purpose of the present invention is to provide a heat-sensitive recording medium which hardly causes safety concerns such as endocrine disrupting chemicals, and is excellent in chromogenic properties and light resistance, and also excellent in heat resistance. A heat-sensitive recording medium (1) has a configuration in which a heat-sensitive recording layer (3) is layered on a substrate (2). The heat-sensitive recording layer (3) comprises a color former, a non-phenol-based developer, and a non-phenol-based light stabilizer. The non-phenol-based light stabilizer comprises a hindered amine-based light stabilizer. Preferably, the non-phenol-based developer comprises a compound represented by the following formula (1) and/or a compound represented by the following formula (2).

##STR00001##

(The symbols in the formulae (1) and (2) are as defined in the specification.)

HEAT SENSITIVE RECORDING MEDIUM

The purpose of the present invention is to provide a heat-sensitive recording medium which hardly causes safety concerns such as endocrine disrupting chemicals, and is excellent in chromogenic properties and light resistance, and also excellent in heat resistance. A heat-sensitive recording medium (1) has a configuration in which a heat-sensitive recording layer (3) is layered on a substrate (2). The heat-sensitive recording layer (3) comprises a color former, a non-phenol-based developer, and a non-phenol-based antioxidant. The non-phenol-based antioxidant comprises a phosphorus-based antioxidant. Preferably, the non-phenol-based developer comprises a compound represented by the following formula (1) and/or a compound represented by the following formula (2).

##STR00001##

(The symbols in the formulae (1) and (2) are as defined in the specification.)

ROOM TEMPERATURE POLARITON CONDENSATION

Disclosed herein is a microcavity and patterns thereof comprising a photoluminescent material positioned between two reflectors, wherein the photoluminescent material comprises a cationic molecular dye, a macrocyclic anion receptor host, and an anion embedded within the macrocyclic anion receptor host and methods of making and using the same.

LOW VOC IONIC SOLVENTS AS DYE CARRIERS FOR ARAMID FIBERS

Compositions and methods for dyeing aramids include one or more dye carriers selected from dialkyl imidazolium salts having a cation of the general formula: where R.sub.1 and R.sub.2 are, independently, selected from C1 to C8 alkyl, and bis-quaternary amine salts having a cation of the formula: where R.sub.1 is, independently at each instance, a C1-C6 alkyl; R.sub.2 and R.sub.3 are, independently at each instance, a C1-C6 alkyl or substituted C1-C6 alkyl, and X is, independently at each instance, a halogen; and one or more cationic dyes.

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Ultraviolet inspection tool, ultraviolet inspection kit, and ultraviolet inspection method
12540848 · 2026-02-03 · ·

The present invention provides an ultraviolet inspection tool having excellent color formability with respect to light having a wavelength of 222 nm even in a case where an irradiation amount of the light having a wavelength of 222 nm is small, an ultraviolet inspection kit, and an ultraviolet inspection method. The ultraviolet inspection tool of the present invention is an ultraviolet inspection tool including an ultraviolet-sensing layer containing a color-forming agent and an acid generator, in which the color-forming agent has at least one selected from the group consisting of a lactone structure, a lactam structure, a sultone structure, a sultine structure, a ring-opened structure of these structures, and an azobenzene structure, a molecular weight of the acid generator is 600 or less, and a mass ratio of a content of the acid generator to a content of the color-forming agent is 1.01 to 40.00.