| 摘要 |
A two agents type natural hair dyeing composition is provided to use a first agent and a second agent simultaneously by comprising a swelling agent and a buffer and controlling a mixed pH and be easy to use compared with a conventional dyeing agent with reduced application time and good color expressing power without causing any allergic reaction. A two agents type natural hair dyeing composition comprises 0.1-40 wt.% of a swelling agent, 0.01-10 wt.% of a buffer, a natural dyeing agent and a mordant, wherein the swelling agent is at least one selected from the group consisting of urea, thiourea, urea peroxide, polyoxymethylene urea, polyoxymethylene cyanoguanidine urea, imidazolidinyl urea, hydroxyethyl urea, dimethyl urea, dimethylol urea, diazolidinyl urea, m-dimethylaminophenyl urea, dimethylol ethylene thiourea, monoethanol urea, guanidine, guanidine hydrochloride, guanidine carbonate, guanidine phosphate, lauramidobutyl guanidine acetate, PEG-6 stearylguanidine, palmitamido butyl guanidine acetate, diglycol guanidine succinate, aminoguanidine bicarbonate, aminoguanidine hydrochloride, ammonia and a salt thereof, and the natural dyeing agent is at least one selected from the group consisting of gallic acid, gallic acid ester, tannic acid and an ester thereof, pyrogallol, logwood, Cortex phellodendri, Coptis chinensis, Lithospermum erythrorhizon, carmine, polygonum indigo, safflower, tumeric, gardenia seeds, Sophorae Flos, Japanese persimmon, gallnut and Alnus japonica.
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