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:
Aug. 04, 2020
Filed:
Jun. 09, 2017
Hoyu Co., Ltd., Aichi, JP;
Shizuka Futatsugi, Aichi, JP;
Yoshiyuki Uesawa, Aichi, JP;
Jun Matsubayashi, Aichi, JP;
Hiromi Umino, Aichi, JP;
HOYU CO., LTD., Aichi, JP;
Abstract
The purpose of the present invention is to solve the problem, in powder hair dye compositions that contain a percarbonate, that a change occurs in the dyed color tone before and after storage when the composition contains metaaminophenol, 5-aminoorthocresol, resorcin, or a salt thereof, as an oxidation dye. To solve the aforementioned problem, a powder hair dye composition containing (A) a percarbonate, (B) a starch, and (C) an oxidation dye is provided, characterized in that the composition contains at least 7 mass % starch (B) and in that the oxidation dye (C) contains at least one selected from metaaminophenol, 5-aminoorthocresol, resorcin, and salts thereof. Thus, a powder hair dye composition can be obtained which suppresses change in the dye color tone before and after storage and which has excellent storage stability.