Anthraquinone dyes and their use in the dyeing of keratinic fibres

    公开(公告)号:GB1080264A

    公开(公告)日:1967-08-23

    申请号:GB366765

    申请日:1965-01-27

    Applicant: OREAL

    Abstract: The invention comprises anthraquinones of the formula where Z is p-phenylene, and R and R1 are alkyl of 1-4 carbon atoms or together with the nitrogen atom form a heterocyclic ring. The corresponding quaternary ammonium salts and acid addition salts are also claimed. The compounds are prepated by reacting 1,4-diamino - 5 - nitro - anthraquinone with a compound of the formula The compounds, and in addition those wherein Z is (CH2)n where n is 2-6 are used to dye keratinic fibres.ALSO:Compositions for the dyeing of keratinic fibres comprise a compound of the formula where 2 is -(CH2)n- or P-phenylene, n is 2-6 and R and R1 is alkyl of 1-4 carbon atoms or form a ring with the nitrogen atom, or an acid addition or quaternary ammonium salt thereof, together with a solvent for the anthraquinone compound. Examples describe the lyeing of air from solutions of dye in aqueous sodium carbonate, aqueous lactic acid, and an aqueous solution containing P-toluylenediamine, m-diaminoanisole sulphate, resorcinol, m-aminophenol, P-aminophenol, ethylenediamine tetraacetic acid, ammonium thioglycolate and ammonia. Compositions comprising an aqueous solution of 1,4-diamino-5-(a -dimethylaminopropyl) amino-anthraquinone are disclaimed excepting those which also contain a wetting, dispersing or penetrating or hair-swelling agent, an emollient or a perfume.

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