LIGHT-FAST COLORANT AND COMPOSITION CONTAINING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a colorant imparted with light stability in its molecule itself by bonding a light-fast material inside a dye or a pigment, and to provide a composition containing the colorant.

SOLUTION: The light-fast colorant minimizes side effects of separately added light fastness improver by bonding a light-fast material to a conventionally used colorant, wherein long preservation stability of images are obtained when applying the composition containing the light-fast colorant to a printer toner or the like.

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