摘要 |
This invention relates to a hair dyeing composition comprising at least one anionic and at least one cationic direct acting hair dyes and showing excellent dyeing ability and excellent resistance to hair washing and environmental influences. The colouring composition of this invention are ready to use colouring composition and, therefore, do not require any mixing prior to application with additional agents such as oxidizers. According to the invention, suitable cationic dyestuffs are of the following structure wherein R<SUP>1 </SUP>and R<SUP>2 </SUP>stand for hydrogen, a CH<SUB>3</SUB>- or C<SUB>2</SUB>H<SUB>5</SUB>- group, R<SUP>3 </SUP>stands for hydrogen, -OCH<SUB>3 </SUB>or -OC<SUB>2</SUB>H<SUB>5</SUB>, and Y<SUP>-</SUP> is chloride, bromide, methosulfate.
|