Method for the cosmetic treatment of hair and implement for carrying out the same

Abstract

A cosmetic method for treating strands of hair comprising the subsequent steps of: placing the strands of hair to be treated between two substrates on which a first and second compositions capable of reacting together are applied, and implement for the same. The implement for carrying out the method may comprise a first and a second substrates in the form of strips of material that may be folded over each other such that at least one section of the strands of hair to be treated is sandwiched between the first and second compositions.

1 . A method for treating strands of hair comprising the subsequent steps of:
 a) providing a first substrate and a second substrate, wherein the first substrate has an inner surface and an outer surface and the second substrate has an inner surface and outer surface and wherein a first composition is applied on the inner surface of the first substrate and a second composition is applied on the inner surface of the second substrate,   b) placing at least one section of the strands of hair to be treated between said first and second substrates such that said at least one section is sandwiched between said first composition and said second composition,   c) removing the first substrate and the second substrate from the strands of hair,   characterized in that said first and second compositions react together to form a hair treating composition that treats the strands of hair during step b).   
   
   
       2 . A method according to  claim 1  wherein the first composition comprises an alkalizing agent and the second composition comprises an oxidizing agent, and wherein said hair treating composition is a hair highlighting composition. 
   
   
       3 . A method according to  claim 2  wherein said first composition further comprises oxidative dye precursors. 
   
   
       4 . A method according to  claim 1  wherein the strands of hair are kept in contact with said inner surfaces during the time of the treatment. 
   
   
       5 . A method according to  claim 1  wherein the reaction between the first composition and the second composition is activated. 
   
   
       6 . A method according to  claim 5  wherein the activation mechanism is selected from the group consisting of heat-, water- and pressure-activation. 
   
   
       7 . A method according to  claim 1  wherein the substrates have substantially the same shape. 
   
   
       8 . A method according to  claim 1  wherein both substrates are made of a strip of flexible material. 
   
   
       9 . A method according to  claim 1  wherein the first composition and the second composition are in a form selected from the group consisting of aqueous composition, paste, viscous liquid, powder, oil-in-water emulsion and gel. 
   
   
       10 . A method according to  claim 1 , wherein a composition similar to the first composition is additionally applied on the inner surface of the second substrate and a composition similar to the second composition is additionally applied on the inner surface of the first substrate, such that at least one section of the strands of hair to be treated is sandwiched between said additionally applied compositions during step b). 
   
   
       11 . A method according to  claim 10  wherein the compositions are applied on the inner surface of the first substrate according to an alternating pattern and the compositions applied on the inner surface of the second substrate are applied complementarily. 
   
   
       12 . A method according to  claim 1  wherein at least one additional composition is applied on the inner surface of the first substrate, such that at least one section of said strands of hair is sandwiched between said first composition and said at least one additional composition on one side, and said second composition on the other side, and wherein said at least one additional composition also reacts with the second composition to form at least one additional hair treating composition that treats the strands of hair during step b). 
   
   
       13 . A method according to  claim 12  wherein said first composition and said at least one additional composition comprises an alkalizing agent and said second composition comprises an oxidizing agent, and wherein said hair treating composition and said additional hair treating composition are hair highlighting compositions. 
   
   
       14 . An implement for treating strands of hair, said implement comprising:
 a) a first substrate having an inner surface and an outer surface, wherein a first composition is applied on said inner surface of said first substrate,   b) a second substrate having an inner surface and an outer surface, wherein a second composition is applied on said inner surface of said second substrate,   c) folding means for easily folding said first substrate over said second substrate such that at least one section of the strands of hair to be treated may be sandwiched between the first composition and the second composition,   characterized in that said first composition and said second composition are capable of reacting together to form a hair treating composition.   
   
   
       15 . An implement according to  claim 14  wherein the first composition comprises an alkalizing agent and the second composition comprises an oxidizing agent, and wherein said hair treating composition is a hair highlighting composition. 
   
   
       16 . An implement according to  claim 14  wherein said first composition further comprises oxidative dye precursors. 
   
   
       17 . An implement according to  claim 14  wherein the implement further comprises closing means for releasably retaining the first and second substrate in the folded position. 
   
   
       18 . An implement according to  claim 14  wherein the first and second substrates have substantially the same shape. 
   
   
       19 . An implement according to  claim 18  wherein said shape is substantially elongated along the length of the strands of hair to be treated. 
   
   
       20 . An implement according to  claim 14  wherein both substrates are made of a strip of flexible material selected from polymeric films. 
   
   
       21 . An implement according to  claim 14  wherein the first composition and the second composition are in the form of a gel. 
   
   
       22 . An implement according to  claim 14  wherein the implement is packaged in a ready-to-use, sealed pack. 
   
   
       23 . An implement according to  claim 14  wherein a composition similar to the first composition is additionally applied on the inner surface of the second substrate and a composition similar to the second composition is additionally applied on the inner surface of the first substrate such that at least one section of the strands of hair to be treated may be sandwiched between said additionally applied compositions when the implement is in a folded position. 
   
   
       24 . An implement according to  claim 23  wherein the compositions applied on the inner surface of the first substrate are applied according to an alternating pattern and the compositions applied on the inner surface of the second substrate are applied complementarily. 
   
   
       25 . An implement according to  claim 14  wherein at least one additional composition capable of reacting with the second composition to form at least one additional hair treating composition is applied on the inner surface of the first substrate such that at least one section of said strands of hair may be sandwiched between said first composition and said at least one additional composition on one side, and said second composition on the other side, when the implement is in a folded position. 
   
   
       26 . An implement according to  claim 25  wherein said first composition and said at least one additional composition comprise oxidative dye precursors and said second composition comprises an oxidizing agent, and wherein said hair treating composition and said additional hair treating composition are hair highlighting compositions.