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
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/46—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur

Definitions

• Coiflfures produced in this manner do not last very long and are especially sensitive to humidity. It has therefore been heretofore suggested that various special ingredients, such as resins or polymers, be included in the setting lotion, which special ingredients remain as a coating on the hair after it has been dried and serve to prolong the life of the set.
• various special ingredients such as resins or polymers
• the present invention relates to a new process for substantially prolonging the life and improving the quality of a hair set which, instead of utilizing resins added to the setting lotion, relies on the steps of first treating the hair with a reducing agent, while the hair is moist and unconstrained, and then neutralizing the reducing agent, before the hair is set.
• Neutralization may be accomplished by subsequently applying conventional neutralizing agents as a separate step in the pretreatment process, by including neutralizing agents in the setting lotion used to subsequently set the hair, or by including in either the setting lotion or the composition containing the reducing agent, a catalyst which accelerates neutralization by the oxygen in the ambient air.
• This pre-treatment improves the hold and quality of the sets regardless of the manner in which the hair is subsequently set and regardless of the ingredients used in the setting lotion.
• a composition containing an agent capable of reducing the SS bonds of the keratin such as one of those used in the first step of conventional permanent waving, is applied to moist hair which has first been washed, and left in contact therewith for a time sufiicient to permit the agent to act, e.g., from to 20 minutes. The hair is then rinsed,
• the pre-treatment process according to the invention is essentially distinguished from a conventional permanent waving process firstly by the fact that the hair is treated with the reducing and neutralizing agents before it has been deformed by being wound up on curlers or rollers, or in any other way, and secondly by the fact that the pre-treatment according to the invention does not seek to impart any permanent deformation to the hair, that is to say any deformation which is resistant to washing, whereas that is the primary object in conventional permanent waving processes.
• the present invention is based on the surprising discovery that when the hair is subjected to a chemical treatment analagous to a permanent, but without rolling the hair up on curlers, the capacity of the hair to take a set of good quality and greater holding power is much improved.
• any of the conventional reducing agents now used in the first steps of permaent Waving processes may be used, especially those having a thiol base, such as thioglycolic acid, thiolactic acid, thioglycerol, thioglycolic amide, glycerol thioglycolate, etc.
• the composition containing the thiols may have a pH between 5 and 10, depending on the nature and concentration of thiol used.
• thiolglycolic acid may be used at a alkaline pH
• thioglycolic amide may be used at a neutral or acid pH.
• compositions used to carry out the invention for example, swelling agents such as urea, which facilitate the penetration of the composition into the hair, sequestrants such as ethylene-diaminotetraacetic acid, so that the product will keep longer, bases such as ammonia, monoethanolamine or morpholine, and buffering agents such as ammonium bicarbonate which maintain the pH of the composition at a desired value and constitute an important reserve supply of an alkaline product.
• swelling agents such as urea
• sequestrants such as ethylene-diaminotetraacetic acid
• bases such as ammonia, monoethanolamine or morpholine
• buffering agents such as ammonium bicarbonate which maintain the pH of the composition at a desired value and constitute an important reserve supply of an alkaline product.
• the neutralization step of our new pre-treatment process may be carried out by using compositions having a hydrogen peroxide or alkaline bromate base.
• the neutralization step may, however, be avoided by using steps already known in connection with permanent waves, according to which metallic catalysts such as manganese salts or glycol dimethacrylates are added to the reducing composition.
• such metallic catalysts may be introduced into a conventional setting lotion, which may also contain resins in solution. Under these conditions, the application of the setting lotion results in neutralization by the oxygen in the air.
• the second or neutralizing step may be effected by introducing an oxidizing agent, such as hydrogen peroxide or an alkaline bromate into a conventional setting lotion.
• an oxidizing agent such as hydrogen peroxide or an alkaline bromate
• the durability of the effects produced by the process depends on the concentration of the active ingredients in the compositions used.
• compositions including a high concentration of reducing agent for example, 0.1 mol per grams of composition
• the holding power gof the :sets is improved 'months.
• compositions having for a period of about ethree a lower concentration of reducing agent for example,
• compositions according: to the invention may take the form of;solutions, fluid creams, gels, or aerosols, depending upon which form is most convenient to apply.
• the hair is then covered with a cap and left for l5 minutes.
• the hair is left for 15 minutes under a cap, and then rinsed.
• the hair is then treated in a conventional manner, to produce a set, which is found to have the same improged properties as described in Example 1.
• This solution is applied as hereinbefore described to hair which has been first washed and dried, and the hair is left for 15 minutes under a cap.
• EXAMPLE 7 The procedure is the same as in Example 6, except that the catalytic lotion described in that example is replaced by an oxidizing lotion having the following composition:
• This solution is easily applied to the hair and gives the same results with respect to rapid setting and the suppression of odors. It also permits the reduced keratin to be neutralized and a polymer to be applied in a single step.
• the method of pretreating moist and unconstrained hair to improve and prolong its setting properties without imparting any permanent deformation to the same comprising the steps of first applying a composition containing a keratin reducing agent selected from the group consisting of thiolactic acid, thioglycerol, thioglycolic acid, thioglycolic amide and glycerol thioglycolate to the hair,
• said reducing agent being present in an amount sufiicient to reduce the SS bonds of the keratin, allowing the composition containing the reducing agent to remain in contact with the unconstrained hair for about 5 to 20 minutes to reduce same and thereafter rising and neutralizing the reduced hair while the hair is unconstrained without permanently deforming the hair.
• composition containing the reducing agent contains the reducing agent in a proportion of about 0.0050.1 mole of thiol per grams of said composition.

Landscapes

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

Applications Claiming Priority (1)

Publications (1)

Family

ID=19724675

Family Applications (1)

Country Status (7)

Cited By (3)

Families Citing this family (5)

• 1966
  • 1966-01-07 LU LU50215D patent/LU50215A1/xx unknown
  • 1966-12-22 FR FR88536A patent/FR1505992A/fr not_active Expired
• 1967
  • 1967-01-05 US US607372A patent/US3582259A/en not_active Expired - Lifetime
  • 1967-01-05 DE DE19671617706 patent/DE1617706A1/de active Pending
  • 1967-01-05 NL NL6700188A patent/NL6700188A/xx unknown
  • 1967-01-05 CH CH20867A patent/CH475005A/fr not_active IP Right Cessation
  • 1967-01-06 GB GB863/67A patent/GB1170133A/en not_active Expired

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