Gel network surfactant based thickening systems for hair colourant and bleaching compositions
AssigneeThe Procter & Gamble Company
InventorsAndrei Sergeevich Bureiko, Ashok Saggi
Life of this patent
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Abstract
The present invention relates to hair coloring and hair bleaching compositions comprising a source of hydrogen peroxide, alkalizer and a specified gel network thickener system. The compositions surprisingly provide improved hair colorant and bleaching compositions which deliver improved lift, lightening and color delivery whilst minimizing damage and scalp sensory irritation which are easy to manufacture and have long shelf life stability.
Claims16
A hair colouring or bleaching composition comprising two component compositions, (i) and (ii), which are mixed prior to application to the hair, component (i) comprising:
- at least one water soluble source of an oxidizing agent and
- at least one gel network thickener system comprising:
- (A) cetyl alcohol and stearyl alcohol having an HLB of 6 or less and a melting point of at least about 30° C. and
- (B) Ceteareth-25 having an HLB of 7 or more, wherein the surfactant ratio [b]/[a] is 0.05, where [a] is the total combined concentration of the surfactants of type (A) expressed as % w/w and [b] is the combined concentration of Ceteareth-25 expressed as % w/w, and at least about 50% w/w of water,
- or
- (C) Steareth-2 having an HLB of 6 or less and a melting point of at least about 30° C. and
- (D) Steareth-100 having an HLB of 7 or more,
- wherein the surfactant ratio [b]/[a] is 0.01, where [a] is the total combined concentration of Steareth-2 expressed as % w/w and [b] is the combined concentration Steareth-100 expressed as % w/w, and at least about 50% w/w of water;
- and
- component part (ii) comprising at least one alkalizer.
A hair colouring or bleaching kit comprising
- i) an individually packaged oxidizing component comprising at least one source of an oxidizing agent and at least one gel network thickener system, comprising (A) cetyl alcohol and stearyl alcohol having an HLB of 6 or less and a melting point of at least about 30° C. and (B) Ceteareth-25 having an HLB of 7 or more, wherein the surfactant ratio [b]/[a] is below 0.10, wherein [a] is the total combined concentration of all surfactants of type
- (A) and [b] is the total combined concentration of Ceteareth-25 expressed as % w/w, and at least about 50% water, or
- (C) Steareth-2 having an HLB of 6 or less and a melting point of at least about 30° C. and
- (D) Steareth-100 having an HLB of 7 or more,
- wherein the surfactant ratio [b]/[a] is 0.01, where [a] is the total combined concentration of Steareth-2 expressed as % w/w and [b] is the combined concentration Steareth-100 expressed as % w/w, and at least about 50% w/w of water;
- ii) an individually packaged second component comprising at least one alkalizer.
Dependencies are inferred from the claim text.