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1. A colorant-containing particle that comprises a colorant and a first polymer represented by the following formula (1):
(A1-R2)n—R1—(R3—P1)m (1)wherein R1 represents an (m+n)-valent organic linking group; R2 each represents a single bond or a divalent linking group; A1 each represents a monovalent organic group containing at least one selected from the group consisting of an organic dye residue, a heterocyclic residue, an acidic group, a group having a basic nitrogen atom, a urea group, a urethane group, a group having a coordinating oxygen atom, a hydrocarbon group of 4 or more carbon atoms, an alkoxysilyl group, an epoxy group, an isocyanate group, and a hydroxyl group; n groups of A1 may be the same or different; n groups of R2 may be the same or different; m represents a number from 1 to 8, n represents a number from 2 to 9, wherein m+n satisfies 3 to 10; R3 each represents a single bond or a divalent linking group; P1 represents a polymer backbone containing a Si atom, and may include a plurality of constituting units; m groups of R3 may be the same or different; and m groups of P1 may be the same or different.
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