| 摘要 |
PURPOSE:A one-pack type cream dyeing agent showing improved shelf stability and dyeability, obtained by blending a cream base such as liquid paraffin, n- paraffin, polyethylene, etc., with acid dye, oxidizing agent, anionic surface active agent and an affinity adjustor. CONSTITUTION:A cream base (35-45wt% based on total amount) such as liquid paraffin-polyethylene blend, n-paraffin-polyethylene blend, etc., is blended with acid dye (e.g. 5-aminoorthocresol), an oxidizing agent (e.g. sodium percarbonate), an anionic surface active agent (e.g. di-2-ethylhexylsulfosuccinate), an affinity adjustor (e.g. carboxymethyl cellulose) of the cream base for hair, further an oxidation promoter (e.g. zinc flower or tannic acid) and a pH adjustor (e.g. anhydrous sodium carbonate) to give the titled dyeing agent. EFFECT:Water absorption is completely cut off, shelf stability is improved and complexity in use is eliminated.
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