| abstract |
PROBLEM TO BE SOLVED: To provide an annatto dye preparation capable of stably maintaining clarity for a long period of time without separating or precipitating a dye component upon coloring of an acidic aqueous solution or a high salt concentration solution, and production thereof. Providing a way. SOLUTION: 0.1 to 1 part by weight of annatto dye is used. 0000 parts by weight of a hydrophilic solvent and 0.1 to 100 parts by weight of an unsaturated carboxylic acid ester, and has a pH of 7.5 to 12. Anato pigment preparation, characterized in that: |