Near-infrared absorption composition, curable composition, cured film, near-infrared cut filter, solid-state imaging device, infrared sensor, camera module, processed coloring agent, and method of manufacturing processed coloring agent

A processed coloring agent obtained by coating at least a portion of surfaces of primary particles of a near-infrared absorption coloring agent with a resin having one or more selected from a coloring agent structure, a heterocyclic structure, and an acyclic hetero atom-containing group,

• wherein the near-infrared absorption coloring agent is a compound represented by Formula (1) below,
• in Formula (1), R1a and R1b each independently represent an alkyl group, an aryl group, or a heteroaryl group, R2 and R3 each independently represent a hydrogen atom or a substituent, R2 and R3 may be bonded to each other to form a ring, R4's each independently represent a hydrogen atom, an alkyl group, an aryl group, a heteroaryl group, —BR4AR4B, or a metal atom, R4 may form a covalent bond or a coordinate bond with at least one selected from R1a, R1b, and R3, and R4A and R4B each independently represent a hydrogen atom or a substituent.

A method of manufacturing a processed coloring agent comprising:

• performing a pulverizing treatment on a near-infrared absorption coloring agent in presence of a resin having one or more selected from a coloring agent structure, a heterocyclic structure, and an acyclic hetero atom-containing group,
• wherein the near-infrared absorption coloring agent is a compound represented by Formula (1) below,
• in Formula (1),R 1a and R1b each independently represent an alkyl group, an aryl group, or a heteroaryl group, R2 and R3 each independently represent a hydrogen atom or a substituent, R2 and R3 may be bonded to each other to form a ring, R4's each independently represent a hydrogen atom, an alkyl group, an aryl group, a heteroaryl group, —BR4AR4b, or a metal atom, R4 may form a covalent bond or a coordinate bond with at least one selected from R1a, R1b, and R3, and R4A and R4B each independently represent a hydrogen atom or a substituent.