System and method for hair treatment
AssigneeCarson Products Company
InventorsMario de la Guardia, Donald R. Cowsar
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Abstract
Systems and methods for curling hair and for straightening hair are disclosed, wherein the systems contain, as a principal active ingredients thereof, guanidine hydroxide, together with an ion exchange resin. The guanidine hydroxide is prepared by mixing together in an aqueous medium at least one water-soluble guanidine salt and at least one particulate, strong-base, quaternary ammonium, hydroxide-form ion-exchange resin. After the mixed components have had a chance to undergo ion exchange, the composition is applied to hair which is maintained in a desired configuration, and after the composition has been in contact with the hair for an effective time the composition is removed from the hair, thereby causing the hair to maintain such desired configuration.
Claims15
A method of treating hair to cause the hair to maintain a desired configuration, said method comprising contacting the hair while in said desired configuration with an effective amount of an aqueous composition comprising the product formed by mixing in an aqueous medium at least one water-soluble quanidine salt in solution in said aqueous medium in an amount of greater than 0.25 molar in quanidine and an effective amount of at least one particulate, strong-base, quaternary ammonium, hydroxide-form ion-exchange resin, wherein said resin has an affinity for the anion of said quanidine salt which is at least equal to the affinity of the resin for the hydroxyl ion, and removing said composition from the hair after said composition has been in contact with the hair for an effective time.
A system for treating hair to cause the hair to maintain a desired configuration, said system comprising an aqueous medium containing a hair treating-effective amount of guanidine hydroxide and at least one particulate, strong-base, quaternary ammonium ion-exchange resin having bound thereto at least a stoichiometric amount, based on the amount of said guanidine hydroxide, of an anion which when combined with the guanidine ion produces a water-soluble salt, said resin having an affinity for said anion at least as great as for the hydroxyl ion.
A method of treating hair to cause the hair to maintain a desired configuration, said method comprising contacting the hair while in said desired configuration with an effective amount of an aqueous composition comprising the product formed by mixing in an aqueous medium at least one water-soluble guanidine salt in solution in said aqueous medium in an amount of greater than 0.25 molar in guanidine and an effective amount of at least one particulate, strongbase, quaternary ammonium, hydroxide-form ion-exchange resin, wherein said resin has a salt splitting capacity of at least about 3.0 meq/g. and an affinity for the anion of said guanidine salt which is at least equal to the affinity of the resin for the hydroxyl ion, and removing said composition from the hair after said composition has been in contact with the hair for an effective time.
Dependencies are inferred from the claim text.