EP0475974A1 - Mise en plis de cheveux. - Google Patents

Mise en plis de cheveux.

Info

Publication number
EP0475974A1
EP0475974A1 EP90908425A EP90908425A EP0475974A1 EP 0475974 A1 EP0475974 A1 EP 0475974A1 EP 90908425 A EP90908425 A EP 90908425A EP 90908425 A EP90908425 A EP 90908425A EP 0475974 A1 EP0475974 A1 EP 0475974A1
Authority
EP
European Patent Office
Prior art keywords
hair
former
infrared
setting
source
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90908425A
Other languages
German (de)
English (en)
Other versions
EP0475974A4 (en
EP0475974B1 (fr
Inventor
Max Feughelman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fibrous Keratin Pty Ltd
Original Assignee
Fibrous Keratin Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fibrous Keratin Pty Ltd filed Critical Fibrous Keratin Pty Ltd
Priority claimed from AU57241/90A external-priority patent/AU637106B2/en
Publication of EP0475974A1 publication Critical patent/EP0475974A1/fr
Publication of EP0475974A4 publication Critical patent/EP0475974A4/en
Application granted granted Critical
Publication of EP0475974B1 publication Critical patent/EP0475974B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D2/00—Hair-curling or hair-waving appliances ; Appliances for hair dressing treatment not otherwise provided for
    • A45D2/36—Hair curlers or hair winders with incorporated heating or drying means, e.g. electric, using chemical reaction
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D4/00—Separate devices designed for heating hair curlers or hair-wavers
    • A45D4/02—Separate devices designed for heating hair curlers or hair-wavers for steep curling, e.g. with means for decreasing the heat
    • A45D4/06—Separate devices designed for heating hair curlers or hair-wavers for steep curling, e.g. with means for decreasing the heat heated by electricity
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D7/00—Processes of waving, straightening or curling hair
    • A45D7/06—Processes of waving, straightening or curling hair combined chemical and thermal

Definitions

  • the present invention relates to apparatus for use in the permanent setting of hair and more particularly to an apparatus that uses infrared radiation as the source of energy to control the temperature at which setting occurs.
  • Permanent setting of the hair refers to the process of chemically treating the hair whereby the breaking down and reformation of covalent bonds in the hair causes the structure of the hair to be altered. Permanent setting is used to create waves, curls and the like in the hair on a "permanent" basis.
  • a cohesive set whilst also able to produce wave or curled hair lacks permanency due to the fact that as soon as the cohesively set hair is wet, the curl or wave is lost. Such wetting as that caused by excessive ambient humidity or washing is sufficient to defeat a cohesive set.
  • a permanent set is unaffected by the presence of water to the extent that even after washing, the hair will be maintained in its curled or waved state.
  • a permanent set may be achieved by the treatment of the hair using various compositions, typically aqueous thioglycollate solutions such as those based on ammonium thioglycollate, under neutral or alkaline condition.
  • the hair to be set is wet with the thioglycollate solution and then wound onto curling or perming rods. The hair is then left for up to about thirty minutes after which time the hair is treated with a neutralizer solution, the curlers removed and the so treated hair washed to remove substantially all of the chemicals used in the treatment.
  • the purpose of the neutralizer solution is to terminate the reaction of the thioglycollate with the hair.
  • the improvement comprising heating the hair with infrared radiation from within the former for a time sufficient to effect the setting.
  • the present invention consists in an apparatus for use in the permanent setting of hair, comprising a hollow infrared transparent or absorbent former adapted to have hair wound thereon, an infrared source within the former and means to cover the hair wound on the former to an extent sufficient to maintain the hair moist during the time in which said infrared radiation source is activated.
  • the present invention consists in a permanent hair setting composition which includes 1-4% w/v of thioglycollate.
  • the advantage of the present invention lies in the use of infrared radiation to heat the hair with the setting composition from within the former on which the hair is wound thereby minimising heat loss with the consequence that heating time is greatly reduced and the heat application to the hair is initiated and stopped within a time span of less than one second enabling the reaction rate of the composition on the hair to proceed in a controlled manner. Further, because of the elevated temperature at which the change in the hair occurs, less breakdown and hence less damage occurs in the hair. In a typical permanent wave process using the present invention, the breakdown of covalent bonds in the hair structure was shown to be less than one third that in a normal permanent setting procedure.
  • the present inventor has recognised that there continues to exist a need for an apparatus and a method by which the hair may be set quickly, reliably, reproducibly and permanently, that is a set not lost in water or high humidities.
  • an object of the present invention to provide an apparatus and a method that is capable of affecting setting of the hair rapidly, reliably, reproducibly and permanently using infrared radiation to obtain rapid initiation, delivery and cessation of energy to the hair.
  • the use of an infrared energy source is vital to the rapidity, reliability and reproducibility of the setting of the hair.
  • the present invention consists in a permanent hair setting apparatus comprising a hollow infrared radiation transparent or absorbent former adapted to have hair wound thereon, an infrared radiation source within said former, energizing means operatively connected to said source for activating the same, control means operatively connected to said energizing means for intermittently activating said source in a predetermined manner and means to cover the hair wound on the former to an extent sufficient to maintain the hair moist during the time in which said infrared radiation source is activated.
  • the present invention consists in an improvement to a method for the permanent setting of the hair in which the hair is treated with an effective amount of a composition capable of acting on the hair to that this patent is directed towards cohesive setting, which setting requires the hair to be made moist, disposed about a hair winding portion and the hair heated by an infrared source within the hair winding portion for a time sufficient to substantially dry the hair.
  • the apparatus disclosed herein also includes as an essential feature a temperature sensor adapted to sense the temperature within the hair winding portion and control it within a predetermined range. Clearly, at least one reason why this temperature sensor is required is to ensure that the infrared source will be deactivated once the hair is substantially dry or otherwise the hair would be heated to an excessive temperature. The applicants also state that their aim is to obtain uniform heating of the hair and avoid overheating.
  • the present invention requires sufficient water to be retained in the hair so that the reaction with the setting composition is able to proceed and to control the temperature of the hair to substantially a maximum of 100°C.
  • the reaction with the setting composition is able to proceed and to control the temperature of the hair to substantially a maximum of 100°C.
  • the hollow former of the invention may be formed from a variety of materials known in the relevant art.
  • One useful material to form an infrared transparent former is silica formed into a vitreous tube.
  • Silica does, however, suffer from the disadvantage that it may be breakable in use, or may be perceived to be easily broken.
  • An alternative to vitreous tube for an infrared absorbent former is metallic tube, wherein the metal is appropriately resistant to the hairsetting composition.
  • a particularly useful metal is stainless steel 316, 0.5mm thick.
  • the dimensions of the former may be varied between wide limits. Generally, however, the length will be about 8cm which corresponds approximately with the length of prior art perming and curling rods.
  • the width of the former may be varied over wide limits, though the width selected will be determined by the extent of curling or waving of the hair required. Thus, as the width of the former increases, the width of the curl will generally be increased.
  • a useful width may be about 6mm.
  • the former will be tubular although other cross sectional shapes are also contemplated by the invention; a non-limiting example being hexagonal.
  • the wall thickness may be of the order of 1mm.
  • a wire gauze or guard may be placed over the outside of the tube so that it overlaps at least one end of the tube. In this arrangement, the diameter of the wire selected to form the gauze or guard would be sufficient to ensure that it would not be broken or damaged in use.
  • the selection of the material from which the wire is formed is important in that it should be inert toward the setting composition used.
  • the wire could be a molybdenum based stainless steel.
  • the infrared radiation source in a preferred embodiment comprises a hot wire, such as Kanthal, capable of being heated continuously up to a temperature of 1100°C using a voltage in the range of about 4 - 30 volts.
  • a fine wire source is capable of rapid attainment of temperature and loss of temperature on application and removal of voltage.
  • the high temperature results in an energy transfer being proportional to the fourth power of the absolute temperature of the wire.
  • the heat transfer being from a low heat inertia source and the transfer itself being via infrared radiation results in the rapid response to the application and removal of heat.
  • a particularly preferred infrared radiation source comprises a spirally wound wire formed from Kanthal.
  • the Kanthal is 23 gauge, circular section, having a resistivity of 1.58 ohms/foot.
  • 6 volts at about 5 amps will provide a temperature of about 850°C, although an effective temperature range is about 800-1000°C.
  • the infrared radiation source be capable of being readily removed from the former to allow it to be cleaned by rinsing with water to remove setting composition.
  • the infrared source is operatively connected by a pair of wires, preferably the infrared source will be capable of being readily plugged into the former and removed as required.
  • the infrared source is for example a tube, only the tube itself will require cleaning.
  • the utility of such an arrangement extends further, in that in use, hair may be readily wound onto each former, with the respective infrared sources removed. Once the hair is wound on, the infrared sources could then be plugged into each former.
  • An alternative infrared source comprises a source of infrared radiation remote from the former and a means capable of transmitting the infrared radiation to within the former.
  • the infrared source may be an infrared lamp, typically having a power output of about 1 kilowatt and the transmission means may be an optical fibre.
  • a water impermeable member is placed over the hair wound on the former.
  • the dimensions of the member are selected to ensure that all the hair being set is substantially covered.
  • this member will also be infrared opaque, thereby ensuring that either none or at most a minimal amount of infrared radiation escapes from the environment immediate the hair and former.
  • Particularly preferred is a member which is infrared reflective on its surface in contact with the hair. The advantage of this arrangement being that the temperature of the hair and composition will increase rapidly and more even heating will occur.
  • a useful construction of the member might be a metal foil, in particular aluminium foil. Such material may be readily wrapped around the hair once it has been wound on the former.
  • this material since this material contacts a setting composition, it needs to be substantially unreactive towards the composition.
  • aluminium where the composition contains thioglycollate, aluminium sulphide will rapidly form on the surface of the aluminium in contact therewith, and thereafter the surface will be unreactive towards the composition.
  • a water absorbent member may be disposed in a manner so as to substantially cover the hair wound on the former. This too will serve to maintain an adequate moisture content in the hair. The transfer of heat from the surface of the former through the hair mass has been shown to be due to evaporation and condensation of water travelling radially outwards from the surface.
  • the means for activating the infrared source may comprise any one of a wide range of switches known in the art.
  • the infrared source is a hot wire, preferably operated at 6 to 12 volts, for safety and reasons of convenience, the voltage will be derived from a transformer operating from a mains voltage.
  • a suitable switch would allow the low voltage to be switched on or off as required.
  • the transformer will be of a suitable leakage reactance and saturated core type, so that if the mains voltage fluctuates by say 10% or electrical contact resistance to the infrared source varies, the transformer will maintain a constant current in the connected infrared sources.
  • the sources are connected in parallel.
  • the present invention contemplates that the actual heating time of the hair will generally be about 30 to 60 seconds.
  • a control means is used to turn off the current to the infrared source after a predetermined time has elapsed.
  • Such a control means will usually comprise a timer, generally electrically driven and well known in the relevant art, equipped with a means that cuts off current to the source after the selected time has elapsed.
  • control means and the means for activating the infrared source may be a single piece of apparatus comprising a timer equipped with a suitable switch.
  • the apparatus of the invention When used in a hairdressing salon, generally the apparatus of the invention will comprise a plurality of infrared transparent hollow formers, infrared sources and water impermeable members.
  • the advantage of this arrangement is that a substantial portion of the hair on a head may be set concurrently.
  • the numbers of former sources and members required will be about 30 per half head where the length of a former is about 8 cm and the diameter about 10 mm.
  • a second set of formers may be used to wind on the hair of the other side of the head. The infrared sources may then be conveniently plugged into the second set of formers allowing setting to proceed.
  • the control means and means for activating the infrared source would not have to be duplicated but naturally the power rating of the transformer selected to operate the infrared sources would have to be adequate.
  • a remote infrared lamp is used together with an optical fibre as the infrared source
  • a single infrared lamp may be used to provide infrared radiation for a plurality of optical fibre.
  • at least one optical fibre is used for each former. Whilst it has been mentioned that the formers will become quite hot during hair setting, it will be recognised by those skilled in the art that merely allowing sufficient time to elapse after treatment will ensure that the formers can be safely removed from the hair.
  • compositions containing about 1-4% thioglycollate are operative when used with the inventive apparatus. This concentration range is substantially lower than that used in compositions for salon use, up to 11% thioglycollate and for home use, 5-8% thioglycollate.
  • the present invention does not require the use of a neutralizer.
  • the hair need only be rinsed after the heat treatment.
  • thioglycollate concentration is important in that the hair will be less damaged during the perming procedure. Furthermore, as most salon operators do not wear gloves, the incidence of dermatitis would be substantially reduced.
  • the present invention has one marked advantage over the prior art, when it is realised that the hair may be typically set within a few minutes as opposed to the prior art treatments which require 20 to 30 minutes at least.
  • a further advantage that flows from the invention is that since it is usual for a test portion of the hair to be set prior to the whole of the hair being set, in order to determine a suitable setting time, this test procedure may be accomplished in a relatively short time compared to prior art treatment. Therefore, the total time for setting is greatly reduced.
  • Fig. 1 is an end elevational view
  • Fig. 2 is an exploded perspective view of the invention.
  • Fig. 3 is a longitudinal sectional view of an infrared source of the invention.
  • Fig. 4 a graph of the temperatures measured in hair curl near the surface of the former and on the outer surface of the hair curl, when the present invention is used in a permanent setting procedure.
  • the apparatus 10 described with reference to Figs. 1 and 2 comprises a former 13 surrounded over its length by a water absorbent member which is a tubular piece of polystyrene foam 14 enclosed by a water impermeable member which is a clamp 12.
  • the former 13 comprises a tube 22 formed from 316 stainless steel having a wall thickness of 0.5mm.
  • an infrared source which comprises a spirally wound length of 23 gauge Kanthal 17 which is supported intermediate its length by mica insulator 20.
  • the Kanthal is silver soldered into a metallic cap 21 which is crimped onto the tube 22. In this way, electrical contact is established between one end of the Kanthal and the tube 22.
  • the Kanthal is connected to a plug 15.
  • the plug 15 is insulated from tube 22 by a teflon plug 16.
  • the plug 15 is adapted to receive an appropriately dimensioned electrical connector so that electrical connection is made between ends of the Kanthal and the voltage source.
  • the former 13 is surrounded about its length by a tubular piece of polystyrene foam 14, which has a length substantially that of the clamp 12.
  • At the top of the foam 14 is a longitudinally extending slit 19 which is aligned with a longitudinally extending opening 18 in the clamp 12.
  • the foam 14 is dimensioned to fit snugly within the clamp and to contact the former 13 over its length.
  • clamp 12 is, as shown in Fig. 1, normally closed. This is achieved in the clamp 12 by having a tubular portion with an opening 18 extending over its full length and a pair of legs 11 each extending downwardly away from opening 18 and from opposing sides of the tubular portion, spaced equally apart from said opening. In this way, a force exerted on the legs 11 in the direction arrowed in Fig. 1 will cause the enlargening of the opening 18, as shown arrowed, and slit 19 to enable the former 13 to be removed.
  • hair to which an appropriate amount of perming composition has been added, is wound on the former 13.
  • the clamp 12 is then opened by moving legs 11 in the direction arrowed in Fig. 1 and the former 13 placed in contact with the foam 14 through opening 18 and slit 19.
  • the clamp 12 will close and the hair on the former 13 surrounded by the foam 14 and the tubular portion of the clamp. This process is repeated until half of the hair on the head is ready for setting.
  • the plugs 15 are then placed into appropriate sockets and current applied for an appropriate amount of time, generally about 30-60 seconds.
  • the current supplying the infrared sources is obtained from a high leakage reactance transformer.
  • a means to vary the voltage such as a simple rheostat is included in order to vary the infrared output.
  • a timer is used to electrically switch off the power to the infrared sources.
  • the formers are removed from the clamps and the hair unwound. The other half of the head is then treated as described. On completion, the hair is rinsed with water and then further prepared in the usual manner.
  • thermocouples were placed in a hair curl near the surface of a former (inside) and near the outer surface of the curl (outside).
  • the heat input to the infrared source was 15.5 watts with heating commenced at zero time and terminating at about 120 seconds.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cosmetics (AREA)
  • Hair Curling (AREA)

Abstract

Un appareil de mise en plis permanente dans lequel des radiations infrarouges sont utilisées afin de chauffer les cheveux concurremment avec une composition de mise en plis permanente jusqu'à une température de 100°C. Le chauffage des cheveux se réalise par l'enroulement des cheveux sur des gabarits à génération d'infrarouges. L'appareil permet d'effectuer une mise en plis permanente après une durée de chauffage de seulement 5 à 60 secondes. Des solutions relativement diluées de la composition de mise en plis permanente sont nécessaires, ce qui élimine le besoin de neutraliser les cheveux après la mise en plis. Ainsi, l'utilisation de l'appareil permet d'effectuer une mise en plis permanente des cheveux en trente minutes environ.
EP90908425A 1989-06-07 1990-06-07 Mise en plis de cheveux Expired - Lifetime EP0475974B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AUPJ462589 1989-06-07
AU4625/89 1989-06-07
AU57241/90A AU637106B2 (en) 1989-06-07 1990-06-07 Hair setting
PCT/AU1990/000251 WO1990014780A1 (fr) 1989-06-07 1990-06-07 Mise en plis de cheveux

Publications (3)

Publication Number Publication Date
EP0475974A1 true EP0475974A1 (fr) 1992-03-25
EP0475974A4 EP0475974A4 (en) 1993-01-07
EP0475974B1 EP0475974B1 (fr) 1997-04-09

Family

ID=25631577

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90908425A Expired - Lifetime EP0475974B1 (fr) 1989-06-07 1990-06-07 Mise en plis de cheveux

Country Status (2)

Country Link
EP (1) EP0475974B1 (fr)
WO (1) WO1990014780A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3062786B1 (fr) 2017-02-13 2021-06-25 Oreal Dispositif de traitement de cheveux
EP4581981A1 (fr) * 2024-01-04 2025-07-09 Koninklijke Philips N.V. Bigoudi

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE364636A (fr) * 1928-10-23
US3126895A (en) * 1960-04-20 1964-03-31 Leclabart
DE2720961A1 (de) * 1977-05-10 1978-11-16 Braun Ag Vorrichtung zum trocknen und/oder formen des haares
US4263500A (en) * 1978-06-19 1981-04-21 Clairol Incorporated Infrared heating hair dryer
DE3133851A1 (de) * 1981-08-27 1983-03-24 Wella Ag Waermebehandlungsgeraet fuer kopfhaare
US4602143A (en) 1984-11-14 1986-07-22 Clairol Incorporated Infrared hair styling device
US4740669A (en) 1986-05-07 1988-04-26 Toyosaku Takimae Electric curling iron with infrared radiating curling rod surface

Also Published As

Publication number Publication date
EP0475974A4 (en) 1993-01-07
EP0475974B1 (fr) 1997-04-09
WO1990014780A1 (fr) 1990-12-13

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