COMPOSITION FOR DYEING KERATIN FIBERS
    1.
    发明申请

    公开(公告)号:US20170209356A1

    公开(公告)日:2017-07-27

    申请号:US15315512

    申请日:2015-05-29

    Applicant: L'OREAL

    Abstract: The present invention relates to a composition for dyeing keratin fibers, comprising (a) at least one direct dye; and (b) at least one sulfone compound represented by the following formula (I): wherein each of R1 and R2 independently denotes a monovalent C1-30 aliphatic group or a monovalent C6-30 aromatic group, which may optionally be substituted with at least one substituent; or R1 and R2, together with the sulfur atom which they are binding, form a 3-10 membered ring which may optionally be substituted with at least one substituent. The composition according to the present invention is a one-part composition and can prevent or reduce skin staining by the direct dye on the skin such as the scalp, while providing the keratin fibers with good cosmetic effects such as good coloring properties.

    COMPOSITIONS FOR DYEING KERATIN FIBERS
    5.
    发明申请

    公开(公告)号:US20180353412A1

    公开(公告)日:2018-12-13

    申请号:US15777336

    申请日:2016-11-25

    Applicant: L'OREAL

    CPC classification number: A61K8/498 A61K8/466 A61Q5/065

    Abstract: The present invention relates to a composition for dyeing keratin fibers, comprising (a) at least one direct dye; and (b) at least one specific pyran-based compound. The composition according to the present invention may further include (c) at least one specific sulfone compound. The composition according to the present invention is a one-part composition and can prevent or reduce skin staining by the direct dye on the skin such as the scalp, while providing the keratin fibers with good cosmetic effects such as good coloring properties.

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