EP2926681A1 - Fer à lisser - Google Patents

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Publication number
EP2926681A1
EP2926681A1 EP15161766.9A EP15161766A EP2926681A1 EP 2926681 A1 EP2926681 A1 EP 2926681A1 EP 15161766 A EP15161766 A EP 15161766A EP 2926681 A1 EP2926681 A1 EP 2926681A1
Authority
EP
European Patent Office
Prior art keywords
hair
hair straightener
sensor device
moisture
transparent element
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
EP15161766.9A
Other languages
German (de)
English (en)
Other versions
EP2926681B1 (fr
Inventor
Berthold Altmann
Daniela Blischke
Thomas Copitzky
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
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 BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP2926681A1 publication Critical patent/EP2926681A1/fr
Application granted granted Critical
Publication of EP2926681B1 publication Critical patent/EP2926681B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A45D2/001—Hair straightening appliances
    • 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
    • A45D1/00—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor
    • A45D1/02—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with means for internal heating, e.g. by liquid fuel
    • A45D1/04—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with means for internal heating, e.g. by liquid fuel 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
    • A45D1/00—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor
    • A45D2001/002—Accessories therefor

Definitions

  • the present invention relates to a hair straightener according to the preamble of claim 1.
  • Conventional hair straighteners for straightening hair comprise two articulated arms, on which a first or second smoothing plate is arranged.
  • a first or second smoothing plate is arranged.
  • at least one of the two smoothing plates can be heated.
  • To straighten the hair these are placed in an open state of the two arms between the two smoothing plates and then transferred the two arms in a closed state and pulled over the hair to be smoothed.
  • the heating or heating of the hair is required to dissolve hydrogen bonds and salt bridges in the hair protein, called keratin.
  • the same procedure will also be used when forming smooth hair into a corrugated form, e.g. by means of a curling iron. It will be apparent that heating of the hair for temporary forming by means of the appropriate equipment, e.g. a curling iron or a straightener, so it is imperative.
  • hair styling devices such as hair straighteners that work at temperatures above 150 ° C should only be used in dry hair, which is by no means felt to be moist. Rather, it must have a humidity that sets in the usual environmental conditions. If the hair has previously been washed, it is advisable to further reshape it and, with the use of appropriate hair styling equipment, it may even be necessary to pre-dry the hair, for example by means of conventional hair driers, until most of the moisture has been removed.
  • Dry hair can be defined as "dry" when equilibrium has been established by adsorption and absorption of moisture from overdried hair or desorption from wet / damp hair to the environment. Dry hair has the usual ambient and indoor air conditions in Central Europe an average water content of about 15%. With a very high air humidity of up to 100%, the maximum possible moisture content is approx. 30%. Depending on the surrounding humidity, the hair is bound in different forms and with different binding energies in the hair. At a relative humidity of between 5 and 75%, according to the literature, the water is bound to already bound water, among other things. Thus, there is already free water in the form of a multi-molecular occupancy with water, which means that a previously adsorbed layer can serve as a substrate for further adsorptions.
  • the present invention therefore deals with the problem of providing for a hair straightener of the generic type an improved or at least one alternative embodiment, by means of which a significantly improved hair style result can be achieved by providing additional information to the respective user of the hair straightener.
  • the present invention is based on the general idea, in a hair straightener known per se with two arms articulated arms, to provide a sensor device for detecting a moisture state of the hair straightened by the hair straightener, so as to directly indicate to a user whether it is necessary for an optimal hairdressing result maximum moisture content is not exceeded.
  • the sensor device it is relatively easy for a user of the hair straightener according to the invention to recognize whether the hair to be straightened is dry and can thus be optimally and long-lasting reshaped. To such a long-lasting Hairdressing result should be able to remove much of the free water from the hair.
  • the user of the hair straightener according to the invention is provided with an optical, that is to say visual indication, whether the hair to be straightened still contains free water and, as a result, may need to be further smoothed or even dried before being smoothed again.
  • the sensor device provided according to the invention the user can easily recognize whether free water is still present in the hair or whether it is already so dry that it can be transformed not only effectively but also long-lasting.
  • the sensor device has at least one transparent element, which is arranged parallel to a smoothing plate on the outside of a longitudinal side of the hair straightener and on which a moisture precipitate in the form of water vapor or condensate can be seen.
  • a moisture precipitate in the form of water vapor or condensate means the leakage of free water from the hair through the introduced into the hair by means of Haarglätters heat energy, the user is immediately apparent in the occurrence or visible of water vapor or condensate, that to be smoothed Hair still contains free water and thus a limited hair style result with reduced durability is achievable.
  • the transparent element thus makes visible the free water still present in the hair, so that the user can decide immediately whether she smoothes the hair to be smoothed again or undergoes drying beforehand.
  • the sensor device has two transparent elements, which are arranged parallel to a screed plate in each case on the outside of an arm of the hair straightener and on which a moisture precipitate in the form of water vapor or condensate can be seen.
  • two transparent elements are preferably provided, so that, regardless of the pulling direction, fogging of the respective transparent element can be detected comparatively easily.
  • At least one transparent element made of quartz glass or borosilicate glass is formed.
  • Quartz glass offers the great advantage that it is chemically resistant to a variety of available hair cosmetics apart from hydrofluoric and phosphoric acid and also has a very low coefficient of thermal expansion, resulting in a high thermal shock resistance. Furthermore, quartz glass has a very low thermal conductivity, which is about two orders of magnitude lower than that of a conventional smoothing plate material in the form of an aluminum alloy.
  • the alternative borosilicate glass has similar properties and is also very resistant to sudden temperature fluctuations and chemicals.
  • a plastic for at least one of the transparent elements is also conceivable, in particular a plastic such as, for example, polysulfone or polyethersulfone.
  • Polysulfone (PSU) is an amorphous high-performance thermoplastic that belongs to the group of high-temperature-resistant plastics, crystal-clear with a slight yellow cast and a temperature resistance of up to 190 ° C. Polysulfone also has a high chemical resistance.
  • polyethersulfone (PESU) is transparent, hydrolysis resistant and chemically resistant and therefore particularly suitable for use in high temperature loaded application.
  • a hair straightener 1 according to the invention has two arms 2, 3 articulated to one another, on which a first or second smoothing plate 4, 5 is arranged. At least one of these two smoothing plates 4, 5 is heatable and for heat transfer to be smoothed hair 6 (see. Fig. 2 ) educated.
  • a sensor device 7 for detecting a moisture state of the hair 6 drawn through the hair straightener 1 is now provided. By means of the sensor device 7, it is visually easy for a layman to see whether the hair 6 have a required degree of drying, that is, not exceed a maximum tolerable moisture level. If the hairs 6 are too moist, they can be damaged on the one hand, and on the other hand, no satisfying and, in particular, long-lasting hairstyle results are achieved.
  • the sensor device 7 at least one, preferably two transparent elements 8, which are arranged parallel to a smoothing plate 4, 5 outside on a longitudinal side of the respective arm 2, 3 of the hair straightener 1 and to which a moisture precipitate in the form of steam or condensate 9 (see. Fig. 2 ) is recognizable.
  • the user of the hair straightener 1 when straightening the hair 6 that steam or condensate 9 is reflected on the transparent element 8, it can assume that in the hair to be smoothed 6 still free water is present, which with the hairstyle can interact with fixing hydrogen bonds and thereby make the hair 6 more elastic and plastic.
  • At least one of the transparent elements 8 may be made of quartz glass or of borosilicate glass, both of which are extremely resistant to chemical reagents, in particular to those which may occur in hair care products.
  • one of the transparent elements 8 may also be made of plastic, in particular of polysulfone (PSU) or of polyethersulfone (PESU). This offers in particular the possibility of cost-effective production, at the same time low weight.
  • the visibility of the water vapor or the condensate 9 on the transparent elements 8 can be further enhanced by a corresponding hydrophobing, e.g. be improved by silicone nanophilaments or a corresponding surface modification modeled on the lotus effect.
  • the transparent element 8 is made of glass
  • the surface of the condensate can be made clearly visible to the user by means of satinizing the glass surface by means of a good contrast between wetted surface and non-wetted surface.
  • the formation of condensate can additionally favor and thus the visualization of the condensate 9 can be improved.
  • the transparent elements 8 are arranged outside the hair straightener 1, that is to say in parallel on the outside of the arms 2, 3, so that a user has an unobstructed view of them.
  • a direct contact between the hair 6 and the transparent element 8 is not required, since it is sufficient to make visible the water vapor or the condensate 9 on the transparent element 8 can. If no water vapor and no condensate 9 are visible and at the same time the temperature is set correctly, this means that the hair to be reshaped 6 has the correct moisture content. On the other hand, this may also mean that the set temperature is too low, the pull-through speed too high and thus the heating due to the low heat transfer of the hair 6 for a longer durable forming too low. The user must therefore adjust the pull-through speed or increase the set temperature.
  • the hair straightener 1 according to the invention is therefore comparatively easy to judge for a layman whether the hair to be smoothed 6 is so dry that a heat-induced Hairdressing result can also be introduced for a long time.
  • the sensor device 7 and the transparent elements 8 may of course be designed to be removable, in particular to simplify the cleaning of the hair straightener 1 according to the invention. Since the sensor device 7 according to the invention requires no electrical supply or has complex electronic components, this is also relatively inexpensive to manufacture.

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  • Cosmetics (AREA)
EP15161766.9A 2014-04-04 2015-03-30 Fer à lisser Not-in-force EP2926681B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014206503.8A DE102014206503A1 (de) 2014-04-04 2014-04-04 Haarglätter

Publications (2)

Publication Number Publication Date
EP2926681A1 true EP2926681A1 (fr) 2015-10-07
EP2926681B1 EP2926681B1 (fr) 2017-05-10

Family

ID=53016454

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15161766.9A Not-in-force EP2926681B1 (fr) 2014-04-04 2015-03-30 Fer à lisser

Country Status (2)

Country Link
EP (1) EP2926681B1 (fr)
DE (1) DE102014206503A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015204611A1 (de) * 2015-03-13 2016-09-15 BSH Hausgeräte GmbH Haarbehandlungsgerät, insbesondere Haarglätter oder Lockenstab
CN107625268A (zh) * 2017-01-26 2018-01-26 路博润先进材料公司 头发造型器具和操作该头发造型器具的方法
US11778695B2 (en) * 2017-12-22 2023-10-03 Jemella Limited Thermal control apparatus and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4877042A (en) * 1983-09-19 1989-10-31 Downey John H Dynamic hair grooming appliance
DE202005001828U1 (de) * 2005-02-05 2006-06-14 Wik Far East Ltd. Haarbehandlungsgerät
EP2272391A1 (fr) * 2009-07-10 2011-01-12 Braun GmbH Processus de soin des cheveux automatisé
US20120312320A1 (en) * 2011-06-13 2012-12-13 Humphreys James D Method and hair care tool for dynamic and optimum hair styling temperature control

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4877042A (en) * 1983-09-19 1989-10-31 Downey John H Dynamic hair grooming appliance
DE202005001828U1 (de) * 2005-02-05 2006-06-14 Wik Far East Ltd. Haarbehandlungsgerät
EP2272391A1 (fr) * 2009-07-10 2011-01-12 Braun GmbH Processus de soin des cheveux automatisé
US20120312320A1 (en) * 2011-06-13 2012-12-13 Humphreys James D Method and hair care tool for dynamic and optimum hair styling temperature control

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015204611A1 (de) * 2015-03-13 2016-09-15 BSH Hausgeräte GmbH Haarbehandlungsgerät, insbesondere Haarglätter oder Lockenstab
CN107625268A (zh) * 2017-01-26 2018-01-26 路博润先进材料公司 头发造型器具和操作该头发造型器具的方法
US11778695B2 (en) * 2017-12-22 2023-10-03 Jemella Limited Thermal control apparatus and method

Also Published As

Publication number Publication date
DE102014206503A1 (de) 2015-10-08
EP2926681B1 (fr) 2017-05-10

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