Aqueous persulphate and percarbonate composition for...

Details Aqueous persulphate and percarbonate composition for... Aqueous persulphate and percarbonate composition for...

C - Chemistry, Metallurgy

11

D

6/22, 167/307

C11D 3/39 (2006.01)

Patent

CA 1113397

ABSTRACT OF THE DISCLOSURE The invention relates to a bleaching powder which comprises at least 25% by weight of annonium persulphate, at least 25% by weight of sodium percarbonate or potassium percarbonate and at least 4% by weight pyrogenic silica in percentages whereby the same can in a vapourproof enclosure be marketed in a premixed dry form which is capable upon aqueous activation of bleaching hair or keratinuous fibre. The one compenent bleach preferably includes pyrogenic silica in the range of from 4 to 10% by weight and preferably the percentage of the persulphate and percarbonate compounds is in the range of 35% by weight each upwards, Ideally the mixture also includes sequestering and wetting agents. In other forms the invention consists in methods of bleaching and methods of preparation of the bleaching powder.

316015

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