Process for preparing bleaching/highlighting composition and use of such compositions
View Patent ↗The present invention relates to a process for bleaching hair wherein a water free bleaching composition, preferably in form of a dust free powder or a granulate comprising at least one compound with bleaching and/or highlighting effect is mixed with an liquid oxidizing composition wherein water free bleaching powder is passed through a sieve.
1. A process for preparing a bleaching and/or highlighting composition consisting of the steps of mixing at least one powder composition being water free bleaching powder and/or granules with a liquid composition, wherein the powder composition is added to a liquid composition by passing through a sieve.
2. The process according to claim 1 , wherein the liquid composition comprises at least one hair dye.
3. The process according to claim 1 , wherein the liquid composition comprises at least one oxidizing agent.
4. The process according to claim 1 , wherein the liquid composition comprises at least one alkalizing agent.
5. The process according to claim 1 , wherein the at least one powder composition is mixed with a second powder composition comprising at least one direct dye.
6. The process according to claim 1 , wherein the sieve has an opening size of 5 mm or smaller.