Patent ID: 8821591

Claim:
A hair dyeing or bleaching method using a hair cosmetic article, the hair cosmetic article comprising: a composition A comprising an alkali agent; a composition B comprising an oxidizing agent; a composition C comprising a powdery oxidation assistant; and a hair cosmetic applicator comprising a container part in which a hair cosmetic material produced by mixing the compositions A, B and C and having a viscosity of 3 to 30 Pa·s at 30° C. is to be contained; an application part by which the hair cosmetic material is applied to a hair-bundle; and an extension part having a liquid-leading passage which communicates the container part to the application part, wherein the application part includes a discharge port and a comb part, and the comb part includes a plurality of comb teeth which are disposed substantially annularly so as to surround the discharge port, the method comprising: 1) mixing the compositions A, B and C in the container part to produce the hair cosmetic material in the container part; 2) supplying the hair cosmetic material to the application part from the container part through the liquid-leading passage in the extension part using the hair cosmetic applicator, the hair cosmetic applicator being in the state in which the container part in which the hair cosmetic material is contained, the application part, and the extension part are assembled; and 3) applying the hair cosmetic material supplied to the application part to hair.