EP3453281A1 - Dispositif de coiffure - Google Patents

Dispositif de coiffure Download PDF

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Publication number
EP3453281A1
EP3453281A1 EP17190266.1A EP17190266A EP3453281A1 EP 3453281 A1 EP3453281 A1 EP 3453281A1 EP 17190266 A EP17190266 A EP 17190266A EP 3453281 A1 EP3453281 A1 EP 3453281A1
Authority
EP
European Patent Office
Prior art keywords
hair
styling device
hair styling
moist
light engine
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.)
Withdrawn
Application number
EP17190266.1A
Other languages
German (de)
English (en)
Inventor
Wouter Hendrik Cornelis SPOORENDONK
Ype Bernardus Brada
Nikolaj Vasiljevitsj ZJIROECHA
Laurentine COSTECALDE
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips NV
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 Koninklijke Philips NV filed Critical Koninklijke Philips NV
Priority to EP17190266.1A priority Critical patent/EP3453281A1/fr
Publication of EP3453281A1 publication Critical patent/EP3453281A1/fr
Withdrawn legal-status Critical Current

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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
    • A45D2200/00—Details not otherwise provided for in A45D
    • A45D2200/20—Additional enhancing means
    • A45D2200/205—Radiation, e.g. UV, infrared

Definitions

  • the invention relates to a hair styling device for e.g. hair crimping, curling, perming and straightening.
  • EP2861096 discloses a hair shaping device for use for hair shaping comprising a number of radiation sources for hair shaping, and a control device for the emission of radiation.
  • Hair damage particularly due to the application of heat, is a major concern of consumers. It is therefore highly desired to style the hair without significant heating of the cuticle of hair.
  • a hair styling device comprising a light engine to deliver optical energy to hair
  • the hair styling device is arranged to allow moist escaping from the hair in response to optical energy being applied to the hair, to escape from the hair styling device.
  • the light engine is the sole energy source for hair styling.
  • a ventilator may move the moist away from the light engine.
  • a processor may control the light engine, in which case the ventilator may also serve to cool the processor and/or the light engine.
  • the hair styling device may comprise clamping members arranged for allowing hair to be guided between and styled by the clamping members, at least one of the clamping members being provided with the light engine.
  • At least one of the clamping members may be provided with openings for allowing moist to escape, or with openings for allowing air to enter so as to convey the moist out of the hair styling device.
  • the clamping members may have non-conforming shapes to allow the moist to escape from the hair styling device.
  • a hair treatment area comprising the light engine may have a gap through which the hair can be guided, the gap being sufficiently wide to allow the moist to escape.
  • a width of the gap may be between 0.3 and 5 mm, and preferably between 1 and 2 mm.
  • Embodiments of the invention are based on the following considerations.
  • vapor from heated hairs will compromise the hair stylings result.
  • Accumulated vapor at the light emitting treatment area will alter the behavior of emitted photons.
  • Photons might be redirected or absorbed at an earlier stage. This will affect (lower) the eventual hair temperature.
  • water accumulates at the treatment area it is once again absorbed by the hairs. In turn, the hair immediately loses its style due to a re-moisturizing effect and will not be able to reach required hair styling temperature due to extra cooling.
  • Fig. 1 shows an embodiment of a hair styling device S in accordance with the present invention.
  • the embodiment is a hair straightener having two members S1, S2 between which hair can be clamped. At least one of these members is provided with a light engine LE to provide optical radiation to style the hair.
  • the light engine LE is preferably of the type disclosed in applicant's earlier application EP3216368 (Attorney's ref. 2016PF00294), incorporated herein by reference, which comprises:
  • a certain range of wavelengths preferably between 400 and 900 nm and more preferably between 400 and 550 nm
  • a short period of time preferably shorter than 300 ms.
  • Embodiments of the invention are based on the following considerations.
  • the hair For hair reshaping, the hair needs to be heated to temperatures around 140 to 180 °C. This glass transition temperature depends on water content of the hair. Hair mainly consist of water, keratin and melanin. The boiling point for water is around 100 °C; this is lower than the hair styling temperature. To reach the glass temperature of hair, temperatures above 100 °C are needed. At this temperature water quickly evaporates. Water vapor triggers convection that can lead to condensed water droplets into the hair reshaping system.
  • active moist transportation is provided by air flow.
  • Atomized water is lighter than air and can therefore easily be transported via air.
  • a high/low air pressure field e.g. by a fan
  • an air flow can be realized to actively transport atomized water away for the hair and the light engine.
  • air flow can be created single-sided or double-sided.
  • the light engine is located at the opposed clamping member.
  • a first clamping member is 'transparent' to moist by means of a grid and/or holes in the construction to transport moist away by air flow.
  • a second clamping member contains the light engine LE, providing a single-sided heat treatment.
  • An exemplary embodiment is shown in Fig. 2a .
  • the lower clamping member S2 of the hair straightener S is provided with a light engine LE, while the upper clamping member S1 is provided with holes through which moist M can escape. Hair H is guided between the clamping members S1, S2 of the hair straightener S.
  • the escaping of moist M from the hair styling device S may be stimulated by a ventilator (not shown), which ventilator may also serve to cool the light engine (LE) and/or a processor (not shown) used to control the light engine LE.
  • air flow A and hair illumination does not have to be opposed. It can also be done together at the same clamping member.
  • the light engine LE treatment area
  • the light engine LE is split into several smaller parts LE with air flow in-between. This can be done single-sided as well as double sided.
  • the direction of the air A traveling through the device S is of importance. It can be in both directions, but the function will change. Sucking air A into the system at the treatment area will guide "cold" (room temperature) air along the hairs H and along the light engines LE and their heat sinks. The latter will be beneficial for the cooling of the electronics.
  • the hot air with moist M is blown-out of the device at a selected area.
  • the air flow A can have the opposite direction of the directions shown in Fig. 2b .
  • Blowing air A out of the system at the treatment area will guide "hot" air, heated by the heat sinks of the control electronics and the light engine LE, along the hairs H, and room temperature air A along the electronics. The latter is most probably more efficient in transporting damp M.
  • moist M is not sucked into to the system, which is better for the electronics of the light engine and its control unit.
  • One or both clamping members S1, S2 of a hair styling clamp S allow vapor M to pass. Active moist transportation, for instance by air flow A, is applied within these clamping members S1, S2 to transport atomized water M away.
  • One-sided heat treatment is applied within these clamping members S1, S2 to transport atomized water M away.
  • One-sided heat treatment is applied within these clamping members S1, S2 to transport atomized water M away.
  • One-sided heat treatment The treatment area is divided into parts LE with air channels in-between.
  • the direction of the air flow A can be both ways. However outwards is preferred, as in this way the light engine and the control electronics can be cooled in addition to the (warm) air transport of atomized water.
  • non-conformal clamping members S1, S2 may be used, which may have cross-sections as shown in the examples of Figs. 3a - 3d .
  • one of both clamping members S1, S2 of the hair straightener S may be provided with a light engine LE.
  • pressure and tension on the hair H are needed.
  • Pressure is applied by clamping the hair just before and/or during treatment.
  • pressure can be applied in several ways: uniform, nonuniform, misaligned or conform.
  • the best styling result were obtained when the top and bottom part of the clamp were not conforming to each other.
  • both clamping members S1, S2 are non-conform there is more room for moist M to escape. If the moist M cannot escape, a re-moisturizing effect of the hair will occur, which is not beneficial for reshaping.
  • This invention is about getting rid of vapor M originating from the hairs during heating. It is not about steam guidance as disclosed in US2015327650A1 , US2009159093A1 .
  • the vapor M dealt with by this invention is not provided by the hair styling device S.
  • the clamping members S1, S2 are not conforming to each other, i.e. they do not have matching shapes, while usual hair straighteners have two heating plates of the same shape.
  • the moist M is passively guided away from the hairs H and light source LE.
  • non-conformal clamping members S1, S2 are advantageously used in combination with active air suction as per the first aspect, they can be used without active air transportation as this non-conformal option allows for a passive system that is not in need of any active moisture transportation.
  • Figs. 4a - 4b show 2 possible embodiments of hair curling devices in accordance with the invention.
  • hair H is guided though a hair treatment area comprising 2 light units L1, L2 each having a respective light engine LE, the light units L1, L2 being spaced apart by a gap G that is sufficiently large to allow moist M to escape from the gap G.
  • the gap should be at least 0.3 mm to allow both hair H and moist M to pass.
  • the gap G should not be too big because otherwise the light intensity will be attenuated too much, so preferably not more than e.g. 5 mm.
  • a gap G between 0.5 and 3 mm would be preferred, such as of about 1 - 2 mm.
  • hair H is radiated by a light engine LE in a light unit L while it is being wound around the cylinder C.
  • the light unit L is spaced from the cylinder C by a gap G that is sufficiently wide to allow moist M to escape.
  • the hair treatment area is formed by the light unit L and the cylinder C.
  • a light engine is positioned inside a transparent cylinder C.
  • Embodiments of the invention thus provide a hair styling device S that uses a light emitting treatment area LE to heat the hair H with active and/or passive transportation of moist M.
  • the light output wavelength is preferably in the range of 400-900 nm, and more preferably in the range of 450-550 nm.
  • the output energy fluence on the hair surface is preferably in the range between 1 J/cm 2 and 10 J/cm 2 , more preferably between 3 J/cm 2 and 7 J/cm 2 , and most preferably between 4 and 6 J/cm 2 .
  • embodiments of the present invention are related to a hair styling device comprising a heat source for heating hair, and an optical radiation source for - in combination with heat from the heat source - heating the hair to a temperature sufficiently high for hair styling, in which the heat source obtains its heat from energy provided by the optical radiation source, and in a preferred embodiment, only from the optical radiation source.
  • the heat source may include a heat sink of the optical radiation source.
  • the optical radiation source may advantageously be covered by a cover that is not fully transparent, whereby optical radiation energy is transformed into thermal energy, the heat source including the cover.
  • the cover may advantageously be largely transparent for wavelengths effective for hair styling, while the cover is largely not transparent for wavelengths less effective for hair styling.
  • the optical radiation source may be covered by a cover that is heated by the heat source.
  • embodiments of the present invention are related to a hair styling device that comprises an optical radiation source for radiating hair, a sensor unit for measuring effects from radiating hair, and a feedforward control device for controlling the optical radiation source in dependence on a signal from the sensor unit.
  • the optical radiation source may produce a first flash having a first energy density that may be lower than required for photo-thermal hair reshaping, the optical radiation source being controlled to produce a subsequent flash in dependence on a sensor signal obtained in response to the first flash, which subsequent flash may have at least the first energy density.
  • the sensor unit may include a sensor arranged before the optical radiation source in a hair flow direction.
  • the hair styling device may comprise, along a direction in which the hair is guided, a first sensor, a first LED unit being controlled in dependence on a signal from the first sensor, a second sensor, and a second LED unit being controlled in dependence on a signal from the second sensor.
  • the direction in which hair is guided through the hair styling device may determine which part of the optical radiation source will act as the first LED unit.
  • the hair styling device may comprise a drive mechanism to move the hair along the optical radiation source at a speed controlled by the feedforward control device in dependence on the signal from the sensor unit.
  • embodiments of the present invention are related to a hair styling device having a two-dimensional array of elements to bring hair at a styling temperature, in which the elements produce optical radiation energy.
  • the elements may include one or more LEDs, and preferably a plurality of LEDs, in which case the LEDS are driven in clusters that may be of mutually different shapes and sizes.
  • the hair styling device may comprise sensors to obtain an areal light absorption measurement opposed to the two-dimensional array of elements, and a control unit for individually controlling the elements in dependence of the measurement.
  • the hair styling device may radiate hair from two sides, both of which includes an areal light absorption measurement.
  • the sensors may include LEDs that momentarily do not produce light.
  • the notion "ventilator” covers any device that creates a pressure difference and/or an air flow into or from the device.
  • the notion processor includes any form of control electronics for controlling the light engine.
  • the control electronics may be implemented by means of hardware comprising several distinct elements, and/or by means of a suitably programmed processor.
  • any reference signs placed between parentheses shall not be construed as limiting the claim.
  • the word "comprising” does not exclude the presence of elements or steps other than those listed in a claim.

Landscapes

  • Cleaning And Drying Hair (AREA)
EP17190266.1A 2017-09-10 2017-09-10 Dispositif de coiffure Withdrawn EP3453281A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17190266.1A EP3453281A1 (fr) 2017-09-10 2017-09-10 Dispositif de coiffure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17190266.1A EP3453281A1 (fr) 2017-09-10 2017-09-10 Dispositif de coiffure

Publications (1)

Publication Number Publication Date
EP3453281A1 true EP3453281A1 (fr) 2019-03-13

Family

ID=59846451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17190266.1A Withdrawn EP3453281A1 (fr) 2017-09-10 2017-09-10 Dispositif de coiffure

Country Status (1)

Country Link
EP (1) EP3453281A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090159093A1 (en) 2007-12-19 2009-06-25 Kent Yu Hair iron with dimpled face plates and method of use in styling hair
EP2110040A2 (fr) * 2008-04-17 2009-10-21 Blueceramic Co., Ltd. Dispositif de coiffure
FR2979202A1 (fr) * 2011-08-29 2013-03-01 Seb Sa Appareil de coiffure a rayonnement
WO2014108775A1 (fr) * 2013-01-11 2014-07-17 Daniel Moyal Défrisement au moyen de vapeur
EP2861096A1 (fr) 2012-06-19 2015-04-22 BSH Hausgeräte GmbH Dispositif de façonnage des cheveux comprenant une source de rayonnement
US20150327650A1 (en) 2014-05-14 2015-11-19 Seb S.A. Steam Hairdressing Appliance with Steam Containment Means
EP3216368A1 (fr) 2016-03-09 2017-09-13 Koninklijke Philips N.V. Coiffage

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090159093A1 (en) 2007-12-19 2009-06-25 Kent Yu Hair iron with dimpled face plates and method of use in styling hair
EP2110040A2 (fr) * 2008-04-17 2009-10-21 Blueceramic Co., Ltd. Dispositif de coiffure
FR2979202A1 (fr) * 2011-08-29 2013-03-01 Seb Sa Appareil de coiffure a rayonnement
EP2861096A1 (fr) 2012-06-19 2015-04-22 BSH Hausgeräte GmbH Dispositif de façonnage des cheveux comprenant une source de rayonnement
WO2014108775A1 (fr) * 2013-01-11 2014-07-17 Daniel Moyal Défrisement au moyen de vapeur
US20150327650A1 (en) 2014-05-14 2015-11-19 Seb S.A. Steam Hairdressing Appliance with Steam Containment Means
EP3216368A1 (fr) 2016-03-09 2017-09-13 Koninklijke Philips N.V. Coiffage

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