▎ 摘　　要

NOVELTY - Graphene hydrogel hair dye comprises gel-like composition mainly formed by mixing graphene dispersion, genipin solution and fragrance in the mass ratio of 1-5:2-10:1:0.1- 0.5. The graphene dispersion includes graphene, dispersant and water. USE - Used as a graphene hydrogel hair dye. ADVANTAGE - The dye has strong physical adsorption, good hair dyeing effect and resistant to washing. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing graphene hydrogel hair dye comprising providing graphene dispersion and genipin solution respectively, stirring, uniformly mixing system containing graphene dispersion, genipin solution and fragrance for 5-30 minutes, and sonicating for 5-30 minutes to obtain graphene hydrogel hair dye; and (2) use method of graphene hydrogel hair dye comprising applying the graphene hydrogel hair dye to the hair at 20-30 degrees C, rubbing repeatedly for 10-20 minutes, allowing to stand at room temperature for 5-15 minutes, washing hair with water for 1-2 times until no gel remains on the hair and scalp, drying the hair with hot air at 50-60 degrees C, washing the hair with water once, and drying the hair with hot air at 40-50 degrees C.