Hair dye compositions
    1.
    发明授权
    Hair dye compositions 失效
    染发组合物

    公开(公告)号:US06776803B2

    公开(公告)日:2004-08-17

    申请号:US10060200

    申请日:2002-02-01

    IPC分类号: A61K713

    摘要: A hair dye composition comprises the following ingredients (A) and (B): (A) a compound having a 5- or 6-membered lactone skeleton, and (B) an acid dye; and having a pH of from 2 to 6 and a buffer capacity not lower than 0.004 gram equivalent/L but lower than 0.2 gram equivalent/L as measured in a form of a tenfold dilute aqueous solution. This hair dye composition does not cause staining to the skin, is excellent in dyeing properties for hair, is good in the fastness to shampoo, and does not give off gas through hydrolysis in an acidic range.

    摘要翻译: 染发组合物包含以下成分(A)和(B):( A)具有5-或6-元内酯骨架的化合物和(B)酸性染料; pH为2〜6,缓冲容量不低于0.004克当量/ L但低于0.2克当量/ L,以十倍稀释水溶液的形式测定。 该染发剂组合物不会对皮肤造成染色,毛发的染色性优异,洗发剂的牢度良好,在酸性范围内不发生水解。