FIRST AGENT FOR TWO-AGENT TYPE HAIR DYEING AND BLEACHING AGENT COMPOSITION, TWO-AGENT TYPE HAIR DYEING AND BLEACHING AGENT COMPOSITION KIT AND METHOD FOR TREATING HAIR BY USING THE KIT

摘要

PROBLEM TO BE SOLVED: To obtain a first agent for a two-agent type hair dyeing and bleaching composition comprising the first agent containing an alkali agent and a second agent containing an oxidizing agent, excellent in bleaching effect and dyeing effect on hair, in which irritation to scalp is sufficiently reduced. ;SOLUTION: The first agent for two-agent type hair dyeing and bleaching composition comprising the first agent containing the alkali agent and the second agent containing the oxidizing agent is characterized by including (a) at least one kind of alkali agent selected from the group consisting of aqueous ammonia and monoethanolamine, (b) at least one kind of water-soluble ammonium salt selected from the group consisting of ammonium carbonate and ammonium hydrogen carbonate and (c) at least one kind of a first pH regulator selected from the group consisting of polyhydric carboxylic acids and salts thereof.;COPYRIGHT: (C)2003,JPO