10.06.23
US Patent No. 11,771,633 B2 (Christine Marie Cahen, Manfred Schmitt, Moussa Barhoum); Wella Operations US patented a hair coloring and/or bleaching composition that contains two aqueous components mixed prior to application onto hair.
The first aqueous component comprises, in a cosmetically acceptable carrier: one or more oxidizing agent(s), one or more fatty alcohols and a polyoxyethylene C12-C30 alkyl ether.
The second aqueous component (ii) comprises, in a cosmetically acceptable carrier: one or more alkalizing agent(s) selected from the group consisting of ammonia, its salts and mixtures thereof, one or more fatty alcohols and a polyoxyethylene C12-C30 alkyl ether; and optionally one or more oxidative dyes or one or more direct dyes or a mixture of one or more oxidative dyes and one or more direct dyes.
The second aqueous component comprises a mixture of a first and a second malodor suppressant.
The mixture of first malodor suppressant and second malodor suppressant is equal weight percentages of isopropyl myristate and Galaxolide at a mixture concentration in the second aqueous component to provide a concentration of the mixture of isopropyl myristate and Galaxolide in the mixture of the first aqueous componentand the second aqueous component (ii) of about 0.7 wt%.
The mixture exhibits a decrease of the amount of gaseous ammonia released relative to the combination of first and second aqueous components without the first and second malodor suppressants.
The first aqueous component comprises, in a cosmetically acceptable carrier: one or more oxidizing agent(s), one or more fatty alcohols and a polyoxyethylene C12-C30 alkyl ether.
The second aqueous component (ii) comprises, in a cosmetically acceptable carrier: one or more alkalizing agent(s) selected from the group consisting of ammonia, its salts and mixtures thereof, one or more fatty alcohols and a polyoxyethylene C12-C30 alkyl ether; and optionally one or more oxidative dyes or one or more direct dyes or a mixture of one or more oxidative dyes and one or more direct dyes.
The second aqueous component comprises a mixture of a first and a second malodor suppressant.
The mixture of first malodor suppressant and second malodor suppressant is equal weight percentages of isopropyl myristate and Galaxolide at a mixture concentration in the second aqueous component to provide a concentration of the mixture of isopropyl myristate and Galaxolide in the mixture of the first aqueous componentand the second aqueous component (ii) of about 0.7 wt%.
The mixture exhibits a decrease of the amount of gaseous ammonia released relative to the combination of first and second aqueous components without the first and second malodor suppressants.