Process for simultaneously waving and coloring hair
AssigneeClairol Incorporated
InventorsDavid Cohen, Leszek J. Wolfram
Life of this patent
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Abstract
A process for simultaneously cold waving and coloring hair in which the neutralization of the hair waving composition is accomplished in two stages, the second stage of which involves the use of a neutralizing composition containing a hair dye.
Claims10
In a process for simultaneously cold waving and coloring hair in which the hair is first treated with a hair waving composition containing a reducing agent wrapped in rods, and thereafter treated with a neutralization composition containing an oxidizing agent, the improvement which comprises carrying out said prior to the start of the second stage, the first stage comprising treating the hair with a first stage neutralization composition containing an oxidizing agent for 2 to 10 minutes to partially neutralize the reducing on the hair, and the second stage comprising treating the hair with a second stage neutralization composition containing an oxidizing agent and hair dye for 3 to 7 minutes to complete the neutralization and to simultaneously dye the hair.
Dependencies are inferred from the claim text.