Keratin dyeing compounds, keratin dyeing compositions containing them, and use thereof
申请人:Glenn Wayne Robert
公开号:US20070050923A1
公开(公告)日:2007-03-08
Compositions for the oxidative dyeing of keratin fibers, comprising a medium suitable for dyeing and at least one bicyclic fused 5-5-membered aza heteroaromatic keratin dyeing compounds having a ring junction nitrogen and an N-hydroxy or N-amino group and derivatives thereof. A method for oxidative dyeing of keratin fibers, comprising applying such compositions in the presence of an oxidizing agent, for a period sufficient to develop the desired coloration.