The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 20, 2021
Filed:
Dec. 18, 2018
Sunnyplace Co., Ltd., Taito-ku, JP;
Nobuhito Mukai, Kuramae, JP;
Takashi Mukai, Kuramae, JP;
SUNNYPLACE CO., LTD., Taito-ku, JP;
Abstract
A hair coloring method that has a better property of keeping color quality, hardly damages hair, reduces skin damage and is free of paraphenylenediamine when performing hair dye comprises a step of applying a mixture of the following (A) and (B) in a predetermined ratio: (A) a hair coloring agent comprising at least a basic dye, an HC dye, a second amino acid, a first cationic surfactant, a thickener, an oil agent, a first pH adjuster and a wetting agent, wherein the hair coloring agent has a pH of 6.8 or more, and (B) a hair cosmetic comprising at least an alkaline agent, a first amino acid, a higher alcohol having 12 to 22 carbon atoms, a surfactant, and a thickener; a step of providing a predetermined time after applying; and a step of applying a cuticle care agent after the predetermined time.