Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q5/00—Preparations for care of the hair
  • A61Q5/04—Preparations for permanent waving or straightening the hair
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
  • A61K8/23—Sulfur; Selenium; Tellurium; Compounds thereof

Definitions

• the addition of penetrating and swelling agents does not substantially improve the action of the sulphite or borohydride when used separately as reducing agents (compare the reduction percentages in columns D andE of the table with those in columns A and-B), but does very substantially increase the efiicac'y of the mixture of the two reducing agents (comparef the reduction percentage in column F of the table with that inicolumn C).
• Suitable water-soluble sulphites Having an alkaline reaction for use in the process of the presentinvention' are, for example, sodium sulphite, potassium sulphite and the sulphites of nitrogenous organic bases, such as triethanolamine sulphite, morpholine sulphite land guam'dine sul- P t a 1 r 1.
• buffers or compounds such as weak acids
• weak acids include, for example. boric acidalone or mixedwith calcium chloride, tartaric acid, citric acid, lactic acid, di-hydrogen ortho-sodium phosphate, glycine", sarcosine and taurine.
• boric acidalone or mixedwith calcium chloride tartaric acid, citric acid, lactic acid, di-hydrogen ortho-sodium phosphate, glycine", sarcosine and taurine.
• itj may be advantageous to start the treatment in the presence of a small quantity of the weak acid 'and toadd a further quantity of the same acid in the course of thetreatrr ient, by spraying or by any other: suitableimeans'.
• the agents promoting the penetr mnet nereactants into the hair, and the use'of which naqsrmgeaaawmage; ous for carrying out the process" according 'to the invention include those already'proposed for permanent w v ing by means of sulphites, especiallyflower nconbrmuch as ethanol and isopropanol, the 'glycbls others or etheresters of glycols, such'as ethylene-glycol," diethyl ene g'lyco L the monoethyl and monobutylkthersipfjethyleh" glycol, the acetate of ethylenglycol. mbdetnyt etheif," 'nfil larly advantageousmethod ofcarrying'outthep entlin;
• vention conslsts in preparing the-aqueouscomposition by dissolutionof a mixture obtained'in'accordance with the process described ini application"Ser NOZ 573,618 and wherein the binder orcarrier ,for thejborohydride powder also acts as a penetratingfagenti "Aneiample of swa a bin r i a l q d n a l f th ls re-awn 11,5149. a.
• thetttfib'ers in desiredishap'e while they are'wett'ed withla hair-soften"- ing solution; buffered to a pH-value within the range :of about 9.0 to 10.0 and containing atleast one Iwate'r-s'oluble sulphite and at least-toner allgali metal borohydride of a molecular weight higher than in a ratio 01:: one mole of *sulphite to l- 20 moles of borohydi'i de, the total' 'quan .tity of both reactants, being suchas,to amoi1i1f to a"con centration of active hydrogen theoretically available of Shot more than- 2 gramspen 100 00.
• a method for permanentlyireshaping human hair and otheri-keratinous fiberswvhich comprises holdingithe fibers laureates-snaps while they arewetted with a hair'- softening solution adjusted to a pH-value within the range of about..9..0 to 10.0 .containing at least one ,water soluble. sulphite, ,at least "one alkali, metal. borohydride of aimolecular; weight n higher than t .35 ,in a "ratio. of.
• a method of permanently reshaping human hair and other keratinous fibers which comprises holding the fibers in desired shape while they are wetted with an aqueous hair-softening solution bufiered to a pH-value within the range of about 9.0 to 10.0 containing at least one Water-soluble sulphite, at least one alkali metal borohydride of a molecular weight higher than 35 in a ratio of one mole of sulphite to 1-20 moles of borohydride, a water miscible penetrating agent selected from the class consisting of lower fatty alcohols, glycols, glycol ethers, glycol ether-esters, cyclic ethers and ethylene oxide polycondensates and a water soluble hair swelling agent selected from the class consisting of urea, thio-urea, formamide, acetamide and carboxylic acid amides of organic heterocyclic nitrogenous bases in an aqueous medium, the total quantity of the reducing agents being such as to amount to
• a solid hair waving composition to be used in aqueous solution which comprises a pulverulent mixture of a water-soluble sulphite, an alkali metal borohydride of a molecular weight higher than 35 and a crystalline weak acid, all uniformly embedded as a stable dispersion in a solid, fusible and water-miscible carrier which is chemically inert under normal conditions of storage and use, said composition containing one mole of sulphite to 1-20 moles of borohydride and a suitable amount of the weak acid to ensure a pH-value of 9-10 in the solution ready for use.
• a solid hair waving composition to be used in aqueous solution which comprises a pulverulent mixture of a water-soluble sulphite, an alkali metal borohydride of a molecular weight higher than 35 and a crystalline weak acid, all uniformly embedded as a stable dispersion in a waxy polycondensate of ethylene oxide, said composition containing one mole of sulphite to 1-20 moles of borohydride and a suitable amount of the weak acid to ensure a pH-value of 9-10 in the solution ready for use.
• a solid hair waving composition to be used in aqueous solution which comprises a pulverulent mixture of a Water-soluble sulphite, an alkali metal borohydride selected from the class consisting of sodium borohydride and potassium borohydride and a crystalline weak acid, all uniformly embedded as a stable dispersion in a polycondensate of ethylene oxide of an average molecular weight higher than 1500, said composition containing one mole of sulphite to 2-4 moles of borohydride and a suitable amount of the weak acid to ensure a pH-value of 9-10 in the solution ready for use.

Landscapes

• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Chemical & Material Sciences (AREA)
• Inorganic Chemistry (AREA)
• Birds (AREA)
• Epidemiology (AREA)
• Cosmetics (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=9659230

Family Applications (1)

Country Status (6)

Cited By (10)

Families Citing this family (1)

Citations (4)

• 0
  • BE BE567812D patent/BE567812A/xx unknown
  • NL NL104157D patent/NL104157C/xx active
• 1957
  • 1957-05-20 FR FR1175560D patent/FR1175560A/fr not_active Expired
• 1958
  • 1958-05-16 GB GB15842/58A patent/GB849045A/en not_active Expired
  • 1958-05-19 US US735968A patent/US2983569A/en not_active Expired - Lifetime
  • 1958-05-19 CH CH348782D patent/CH348782A/fr unknown

Patent Citations (4)

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