Method of dyeing human hair with reactive dyes

摘要

A process for permanently dyeing keratinous fibers with halotriazinyl reactive dyes wherein good leveling and uptake is attained. More particularly, a process for dyeing human hair comprising subjecting the fibers to sequential treatment of first applying to the fibers a halotriazinyl reactive dye at a pH of from about 4 to 6.5 and then allowing the dye to bond with the fibers at a pH of about 8 to 8.5.