Formulations for dyeing keratin fibers comprising a pyrazolotriazole coupler and oxidation base

摘要

Formulations for the oxidation dyeing of keratin fibers comprising a coupler and oxidation base. The couplers are represented by the following structure:wherein:Z represents the elements of C, N, O, or S necessary to complete a substituted or unsubstituted heterocyclic 5 or 6 member ring along with nitrogen;R1 represents a substituent group;and, X represents a hydrogen or a coupling off group.