DETAILED DESCRIPTION What is claimed is: 1.
A powdered hair dye comprising in admixture an oxidative dye component and an amount of a powdered oxidizing agent, effective to react with said dye component, wherein said dye component is present in the form of a cyclodextrin inclusion complex, the aount of the dye is from 0.
05 to 50 parts in 100 parts of the powdered hair dye and the molar ratio of cyclodextrin:dye is 1:0.
1 to 1:3.
2.
The powdered hair dye according to claim 1, wherein the dye component comprises a primary intermediate selected from the group consisting of p-phenylenediamine, o-phenylenediamine, p-aminodiphenylamine, p-aminophenol, o-aminophenol, toluene-2,5-diamine, toluene-3,4-diamine, 4,4'-diaminodiphenylamine, p-methylaminophenol, p-chloro-o-phenylenediamine, o-chloro-p-phenylenediamine, 5-amino-o-cresol, 3,3'-iminodiphenol, 2,6-diaminopyridine, p-aminophenylsulfamic acid, 2,4-diaminophenol, 2,4-diaminoanisole and salts thereof; and a coupler selected from the group consisting of m-phenylenediamine, toluene-2,4-diamine, m-aminophenol, p-methoxy-m-phenylenediamine, -naphthol, resorcinol, hydroquinone, catechol, 4-chlororesorcinol, pyrogallol, fluoroglycine and salts thereof.
3.
The powdered hair dye according to claim 2, wherein the dye component is a salt of a sulfate, hydrochloride or acetate.
4.
The powdered hair dye according to claim 1, wherein the powdered oxidizing agent is at least one material selected from the group consisting of sodium perborate, potassium perborate, urea peroxide, sodium percarbonate, melamine peroxide, sodium sulfate.
hydrogen peroxide adduct, sodium pyrophosphate.
hydrogen peroxide adduct and disodium phosphate.
hydrogen peroxide adduct.
Description:
BACKGROUND OF THE INVENTION This invention relates to a powdered hair dye, and more particularly to a powdered hair dye which can dye a deep color with an advantage of possessing high stability for longer shelf life.
Because the powdered hair dye has many advantages compared with the liquid type, and it would become more widely used in the future
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Quantum Computing 
