EP1657993B1 - Hair care appliance - Google Patents
Hair care appliance Download PDFInfo
- Publication number
- EP1657993B1 EP1657993B1 EP04768191A EP04768191A EP1657993B1 EP 1657993 B1 EP1657993 B1 EP 1657993B1 EP 04768191 A EP04768191 A EP 04768191A EP 04768191 A EP04768191 A EP 04768191A EP 1657993 B1 EP1657993 B1 EP 1657993B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- appliance according
- platen
- heating element
- appliance
- ceramic material
- 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.)
- Not-in-force
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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
- 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
Definitions
- This invention concerns improvements in or relating to hair care appliances.
- Hair care appliances such as straighteners are presently available but are generally not very efficient in operation. Accordingly, they may take a significant time to reach operating temperature, and also to return to operating temperature during use. As a result of this it has not been possible for a satisfactory battery operated version of such an appliance to be made.
- WO03/039290 discloses an electric thermal hairstyling appliance with a plate which acts as an electric heating resistor.
- the plate has a main portion of an aluminium alloy, and an end portion of a thermally insulating plastic material.
- a hair care appliance having at least one heated platen, the platen having a heating element printed thereon.
- the heating element may be provided on an upper side of the platen which can contact the hair, or on an underside of the platen.
- the heating element may be applied by screen printing, transfer printing, or photolithography.
- the heating element preferably has a large temperature coefficient of resistivity, which may be in the range 2-6 x 10 -3 K -1 .
- the heating element may be made of any of tungsten, nickel, silver or platinum, which metal or metals may be in a glassy phase bonding matrix.
- the heating element may be non-metallic, could be silicon carbide.
- the platen may be made of a ceramic material, which material may be cordierite.
- the ceramic material may be based on other compositions within the Al 2 O 3 - MgO - SiO 2 system.
- the ceramic material may be nitride based, for example aluminium or silicon nitride.
- the platen may be made from glass or glass-ceramic.
- the ceramic material may have a low thermal expansion coefficient, and preferably has high thermal shock resistance.
- the thermal expansion coefficient is preferably in the range 0.1 - 8.0 x 10 -6 /°C.
- the thermal expansion coefficient of the ceramic material and heating element are preferably generally matched.
- the platen may be made of metal, for example by pressing.
- the platen may be formed with a channel or recess, and the heating element may locate in the channel or recess.
- the appliance may include two heated platens between which hair can be located.
- the or each platen may be shaped to straighten, curl or brush hair. Interchangeable different shape platens may be provided.
- the appliance may be mains or battery operated.
- Terminal pads are preferably provided as part of the heating element to enable electrical connection to the heating element.
- Figs. 1 to 3 show a hair care appliance in the form of a hair straightening iron 10.
- the iron 10 comprises a first finger 12 which mounts a platen 14 thereon facing upwardly as shown in Fig. 1 .
- a second finger 16 is pivotally mounted to the first finger 12 and mounts a similar platen 18 which faces towards the platen 14 and can be moved theretowards by pivotal movement of the second finger 16.
- the iron 10 is mains operated and a lead 22 is provided therefor.
- Each of the platens 14, 18 has a generally similar configuration and only the first thereof will now be described.
- the platen 14 is made of a ceramic material which in this instance is cordierite and has a generally channel shaped profile with the channel 20 facing downwardly as shown in Fig. 1 .
- Engagement formations 24 are provided in the channel corners to provide for mounting of the platen 14 to the finger 12.
- a heating element 26 is provided within the channel.
- the heating element comprises a silver alloy in a glassy phase bonding matrix and is printed onto the platen 14 by screen printing.
- Two terminal pads 28 are provided at one end of the heating element 26 for connection to the electrical supply.
- the cordierite has a low thermal expansion (1 x 10 -6 / ° C) which is generally compatible with the thermal expansion of the silver alloy heating element.
- the cordierite also has high thermal shock resistance to prevent damage occurring thereto through regular heating up and cooling down.
- the heating element 26 has a large temperature coefficient of resistivity.
- Figs. 4 and 5 show an alternative heating element 30 and platen 32 arrangement.
- a recess 34 is provided on the underside of the platen 32 in which the heating element 30 is located.
- the heating element 30 has a different configuration to the heating element 26, but both are configured to provide good heat transfer right across the respective platens 14, 18, 32.
- Fig. 6 shows a further iron 36 according to the invention.
- the iron 36 is similar to the iron 10 except as follows.
- the iron 36 is battery operated and a battery pack 38 is provided within the first finger 12.
- the battery pack 38 can take any appropriate form and may include rechargeable or disposable batteries.
- the platens are formed of metal, and are shaped by pressing.
- the heating elements 40 are provided on the top surface of the platens 42.
- the heating elements 40 may have a similar arrangement to the heating elements 26, but a conformal dielectric insulating layer is provided on the heating elements 40.
- the heating elements can be provided on the underside of the platens as in the iron 10.
- the iron 36 will operate similarly to the iron 10. Locating the heating elements 40 on the outer surfaces of the platens 42 provides for greater heat transfer and thus in general a lower power usage. Accordingly, with the good heat transfer between the heating elements and platens, and with the relatively low power input required to heat the platens to a required heating temperature and also to return the platens to this temperature following cooling, the iron 36 can operate satisfactorily whilst still being battery powered.
- a different ceramic material may be used and this could be based on any combination of components in the Al 2 O 3 - MgO - SiO 2 system.
- a nitride base material such as aluminium or silicon nitride, or a glass or glass-ceramic could be used.
- the platen material should have a low expansion coefficient, preferably within the range 0.1 - 8.0 x 10 -6 /°C, and also have a high thermal shock resistance.
- the heating element could be transfer printed, or printed using photolithography.
- the battery pack could be located elsewhere.
- the heating element may be made of a different material and could be made for instance of tungsten, nickel or platinum.
- the element can be made of any material with a sufficiently low resistivity and high thermal coefficient of resistance such that the temperature control can be effected by the material's natural increase in resistance as a function of increasing temperature.
- the heating elements may be provided on the top or underside of the platen as required.
- the platen may take a different shape and could be shaped for instance to curl or brush hair.
- the irons may be arranged such that the platens are interchangeable so different shape platens can be selected as required.
Landscapes
- Resistance Heating (AREA)
- Cosmetics (AREA)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Surface Heating Bodies (AREA)
Abstract
Description
- This invention concerns improvements in or relating to hair care appliances.
- Hair care appliances such as straighteners are presently available but are generally not very efficient in operation. Accordingly, they may take a significant time to reach operating temperature, and also to return to operating temperature during use. As a result of this it has not been possible for a satisfactory battery operated version of such an appliance to be made.
-
WO03/039290 - According to the present invention there is provided a hair care appliance, the appliance having at least one heated platen, the platen having a heating element printed thereon.
- The heating element may be provided on an upper side of the platen which can contact the hair, or on an underside of the platen.
- The heating element may be applied by screen printing, transfer printing, or photolithography.
- The heating element preferably has a large temperature coefficient of resistivity, which may be in the range 2-6 x 10-3K-1.
- The heating element may be made of any of tungsten, nickel, silver or platinum, which metal or metals may be in a glassy phase bonding matrix.
- Alternatively the heating element may be non-metallic, could be silicon carbide.
- The platen may be made of a ceramic material, which material may be cordierite. Alternatively, the ceramic material may be based on other compositions within the Al2O3 - MgO - SiO2 system. A further possibility is that the ceramic material may be nitride based, for example aluminium or silicon nitride. As a further alternative the platen may be made from glass or glass-ceramic.
- The ceramic material may have a low thermal expansion coefficient, and preferably has high thermal shock resistance. The thermal expansion coefficient is preferably in the range 0.1 - 8.0 x 10-6/°C.
- The thermal expansion coefficient of the ceramic material and heating element are preferably generally matched.
- In an alternative embodiment the platen may be made of metal, for example by pressing.
- The platen may be formed with a channel or recess, and the heating element may locate in the channel or recess.
- The appliance may include two heated platens between which hair can be located.
- The or each platen may be shaped to straighten, curl or brush hair. Interchangeable different shape platens may be provided.
- The appliance may be mains or battery operated.
- Terminal pads are preferably provided as part of the heating element to enable electrical connection to the heating element.
- Embodiments of the present invention will now be described by way of example only and with reference to the accompanying drawings, in which:-
-
Fig. 1 is a diagrammatic side view of a hair care appliance according to the invention; -
Fig. 2 is a diagrammatic view from beneath of a component of the appliance ofFig. 1 ; -
Fig. 3 is a diagrammatic end view of the component ofFig. 2 ; -
Fig. 4 is a diagrammatic view from beneath of an alternative component of the appliance ofFig. 1 ; -
Fig. 5 is a diagrammatic side view of the component ofFig. 4 ; and -
Fig. 6 is a similar view toFig. 1 but of a second hair care appliance according to the invention. -
Figs. 1 to 3 show a hair care appliance in the form of ahair straightening iron 10. Theiron 10 comprises afirst finger 12 which mounts aplaten 14 thereon facing upwardly as shown inFig. 1 . - A
second finger 16 is pivotally mounted to thefirst finger 12 and mounts asimilar platen 18 which faces towards theplaten 14 and can be moved theretowards by pivotal movement of thesecond finger 16. - The
iron 10 is mains operated and alead 22 is provided therefor. Each of theplatens platen 14 is made of a ceramic material which in this instance is cordierite and has a generally channel shaped profile with thechannel 20 facing downwardly as shown inFig. 1 .Engagement formations 24 are provided in the channel corners to provide for mounting of theplaten 14 to thefinger 12. - A
heating element 26 is provided within the channel. The heating element comprises a silver alloy in a glassy phase bonding matrix and is printed onto theplaten 14 by screen printing. Twoterminal pads 28 are provided at one end of theheating element 26 for connection to the electrical supply. The cordierite has a low thermal expansion (1 x 10-6/°C) which is generally compatible with the thermal expansion of the silver alloy heating element. The cordierite also has high thermal shock resistance to prevent damage occurring thereto through regular heating up and cooling down. Theheating element 26 has a large temperature coefficient of resistivity. - In use, power is supplied to the
iron 10, and due to the large temperature coefficient of resistivity, and the good thermal contact between therespective heating element 20 and theplatens -
Figs. 4 and 5 show analternative heating element 30 andplaten 32 arrangement. In this instance arecess 34 is provided on the underside of theplaten 32 in which theheating element 30 is located. As can be seen theheating element 30 has a different configuration to theheating element 26, but both are configured to provide good heat transfer right across therespective platens -
Fig. 6 shows afurther iron 36 according to the invention. Theiron 36 is similar to theiron 10 except as follows. In this instance theiron 36 is battery operated and abattery pack 38 is provided within thefirst finger 12. Thebattery pack 38 can take any appropriate form and may include rechargeable or disposable batteries. - In this instance the platens are formed of metal, and are shaped by pressing. The
heating elements 40 are provided on the top surface of theplatens 42. Theheating elements 40 may have a similar arrangement to theheating elements 26, but a conformal dielectric insulating layer is provided on theheating elements 40. In an alternative arrangement (not shown) the heating elements can be provided on the underside of the platens as in theiron 10. - In use, the
iron 36 will operate similarly to theiron 10. Locating theheating elements 40 on the outer surfaces of theplatens 42 provides for greater heat transfer and thus in general a lower power usage. Accordingly, with the good heat transfer between the heating elements and platens, and with the relatively low power input required to heat the platens to a required heating temperature and also to return the platens to this temperature following cooling, theiron 36 can operate satisfactorily whilst still being battery powered. - Various other modifications may be made without departing from the scope of the invention. For instance, a different ceramic material may be used and this could be based on any combination of components in the Al2O3 - MgO - SiO2 system. Alternatively a nitride base material such as aluminium or silicon nitride, or a glass or glass-ceramic could be used. To operate satisfactorily the platen material should have a low expansion coefficient, preferably within the range 0.1 - 8.0 x 10-6/°C, and also have a high thermal shock resistance.
- The heating element could be transfer printed, or printed using photolithography. The battery pack could be located elsewhere.
- The heating element may be made of a different material and could be made for instance of tungsten, nickel or platinum. The element can be made of any material with a sufficiently low resistivity and high thermal coefficient of resistance such that the temperature control can be effected by the material's natural increase in resistance as a function of increasing temperature. As indicated the heating elements may be provided on the top or underside of the platen as required.
- The platen may take a different shape and could be shaped for instance to curl or brush hair. The irons may be arranged such that the platens are interchangeable so different shape platens can be selected as required.
- Whilst endeavouring in the foregoing specification to draw attention to those features of the invention believed to be of particular importance it should be understood that the Applicant claims protection in respect of any patentable feature or combination of features hereinbefore referred to and/or shown in the drawings whether or not particular emphasis has been placed thereon.
Claims (28)
- A hair care appliance, the appliance (10, 36) having at least one heated platen (14, 18, 32, 42), the platen (14, 18, 32, 42) having a heating element (26, 30, 40) printed thereon.
- An appliance according to claim 1, in which the heating element (40) is provided on an upper side of the platen (42) which can contact the hair.
- An appliance according to claim 1, in which the heating element (26, 30) is provided on an underside of the platen (14, 18, 32).
- An appliance according to any of the preceding claims , in which the heating element (26, 30, 40) is applied by screen printing, transfer printing, or photolithography.
- An appliance according to any of the preceding claims, in which the heating element (26, 30, 40) has a temperature coefficient of resistivity in the range 2-6 x 10-3K-1.
- An appliance according to any of the preceding claims, in which the heating element (26, 30, 40) is made of any of tungsten, nickel, silver or platinum.
- An appliance according to claim 6, in which the metal or metals of the heating element (26, 30, 40) is in a glassy phase bonding matrix.
- An appliance according to any of claims 1 to 5, in which the heating element (26, 30, 40) is non-metallic.
- An appliance according to claim 8, in which the heating element (26, 30, 40) is made of silicon carbide.
- An appliance according to any of the preceding claims, in which the platen (14, 18, 32, 42) is made of a ceramic material.
- An appliance according to claim 10, in which the platen (14, 18, 32, 42) is made of cordierite.
- An appliance according to claim 10, in which the ceramic material is based on compositions within the Al2O3 - MgO - SiO2 system.
- An appliance according to claim 10, in which the ceramic material is nitride based, for example aluminium or silicon nitride.
- An appliance according to any of claims 10 to 13, in which the ceramic material has a thermal expansion coefficient in the range 0.1 - 8.0 x 10-6/°C.
- An appliance according to claim 14, in which the thermal expansion coefficient of the ceramic material and heating element (26, 30, 40) are generally matched.
- An appliance according to any of claims 10 to 15, in which the ceramic material has high thermal shock resistance.
- An appliance according to any of claims 1 to 9, in which the platen (14, 18, 32, 42) is made from glass.
- An appliance according to any of claims 1 to 9, in which the platen (14, 18, 32, 42) is made from glass-ceramic.
- An appliance according to any of claims 1 to 9, in which the platen (14, 18, 32, 42) is made from metal.
- An appliance according to claim 19, in which the platen (14, 18, 32, 42) is made by pressing.
- An appliance according to any of the preceding claims, in which the platen (32) is formed with a channel or recess (34).
- An appliance according to claim 21, in which the heating element (30) locates in the channel or recess (34).
- An appliance according to any of the preceding claims, in which the appliance includes two heated platens (14, 18, 32, 42) between which hair can be located.
- An appliance according to any of the preceding claims, in which the or each platen (14, 18, 32, 42) is shaped to straighten, curl or brush hair.
- An appliance according to any of the preceding claims, in which interchangeable different shape platens (14, 18, 32, 42) are provided.
- An appliance according to any of the preceding claims, in which the appliance (10) is mains operated.
- An appliance according to any of claims 1 to 25, in which the appliance (36) is battery operated.
- An appliance (10, 36) according to any of the preceding claims, in which terminal pads (28) are provided as part of the heating element (26, 30, 40) to enable electrical connection to the heating element (26, 30, 40).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0319969.2A GB0319969D0 (en) | 2003-08-27 | 2003-08-27 | Hair care appliance |
PCT/GB2004/003635 WO2005020742A1 (en) | 2003-08-27 | 2004-08-26 | Hair care appliance |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1657993A1 EP1657993A1 (en) | 2006-05-24 |
EP1657993B1 true EP1657993B1 (en) | 2008-04-16 |
Family
ID=28460295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04768191A Not-in-force EP1657993B1 (en) | 2003-08-27 | 2004-08-26 | Hair care appliance |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1657993B1 (en) |
AT (1) | ATE392158T1 (en) |
DE (1) | DE602004013162T2 (en) |
ES (1) | ES2305841T3 (en) |
GB (2) | GB0319969D0 (en) |
WO (1) | WO2005020742A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101658355B (en) * | 2009-07-14 | 2011-11-09 | 深圳市奋达电器有限公司 | Temperature correction device and method for hair straightener |
US11589661B2 (en) | 2017-01-12 | 2023-02-28 | Dyson Technology Limited | Hand held appliance |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050051188A1 (en) * | 2003-09-08 | 2005-03-10 | Conair Corporation | Hair styling appliance |
GB2447750B (en) * | 2004-11-19 | 2009-06-17 | Jemella Ltd | Improvements in and relating to hair irons |
GB2456233B (en) * | 2004-11-19 | 2009-09-23 | Jemella Ltd | Improvements in and relating to hair irons |
GB0500451D0 (en) * | 2005-01-11 | 2005-02-16 | Hot Uk Ltd | Hair treatment apparatus |
ATE532430T1 (en) | 2005-06-29 | 2011-11-15 | Koninkl Philips Electronics Nv | HAIR STYLING APPARATUS |
GB2432310B (en) | 2005-11-18 | 2011-02-16 | Jemella Ltd | Improvements in and relating to hair irons |
GB2432524A (en) * | 2005-11-26 | 2007-05-30 | Karen Morten | A gas powered hair styling tool |
GB2439523A (en) * | 2006-06-30 | 2008-01-02 | Bayari Holdings Sa | Hair straightening iron with ionic treatment |
GB0620696D0 (en) * | 2006-10-18 | 2006-11-29 | Ralph Michael | Hair styler |
GB2446440A (en) * | 2007-02-09 | 2008-08-13 | Duna Entpr Sa | Ceramic heating plate for hair straightener iron |
KR101364034B1 (en) * | 2007-06-26 | 2014-02-18 | 다카시 무카이 | Hair Iron |
US8110778B2 (en) | 2007-07-10 | 2012-02-07 | Dickson Industrial Co., Ltd. | Hair crimper (local heating) |
US20100206322A1 (en) * | 2007-10-17 | 2010-08-19 | Takashi Mukai | Hair Iron |
GB2465865B (en) * | 2008-01-09 | 2013-01-02 | Ghd Korea Inc | Hair iron |
GB2477834B (en) * | 2010-08-31 | 2012-02-01 | Jemella Ltd | Hair styling appliance |
ES2363241B1 (en) * | 2011-03-15 | 2012-05-08 | Dols Industrial De Peluqueria, S.A. | ELECTRIC BRUSH FOR HAIR CARE. |
DE102011007374A1 (en) * | 2011-04-14 | 2012-10-18 | BSH Bosch und Siemens Hausgeräte GmbH | The hair styling appliance heating plate |
DE102011007375A1 (en) * | 2011-04-14 | 2012-10-18 | BSH Bosch und Siemens Hausgeräte GmbH | The hair styling appliance heating plate |
DE102012201739A1 (en) * | 2012-02-06 | 2013-08-08 | BSH Bosch und Siemens Hausgeräte GmbH | Electric hair straightener |
GB2545233B (en) | 2015-12-09 | 2018-06-27 | Dyson Technology Ltd | Flexible heating plate for hair |
GB2562276B (en) | 2017-05-10 | 2021-04-28 | Dyson Technology Ltd | A heater |
GB2567448A (en) * | 2017-10-11 | 2019-04-17 | Dyson Technology Ltd | A hair styling appliance |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2822989A1 (en) * | 1978-05-26 | 1980-02-21 | Braun Ag | LOCKING ROD |
JPS5824124B2 (en) * | 1978-10-05 | 1983-05-19 | 松下電器産業株式会社 | hair adjustment tool |
LU86196A1 (en) * | 1985-12-06 | 1987-07-24 | Faco Sa | ELECTRIC STYLING FORCEPS |
ES2112149B1 (en) * | 1995-03-13 | 1998-11-16 | Megatom S L | HEAT PLATE FOR HEAT PRODUCTION DEVICES. |
US6009884A (en) * | 1996-01-31 | 2000-01-04 | Suh; Jeong Joo | Eyelash curler |
ATE215872T1 (en) * | 1996-10-16 | 2002-04-15 | Steffen Homann | HEATED CUTTING INSTRUMENT, IN PARTICULAR SCISSORS, KNIFE, HAIR CUTTER OR THE LIKE. |
JPH1175927A (en) * | 1997-09-10 | 1999-03-23 | Tominari Sonoda | Dressing hair iron |
US6173718B1 (en) * | 1998-06-29 | 2001-01-16 | Milbon Co., Ltd. | Hair styling iron |
JP2000054090A (en) * | 1998-08-03 | 2000-02-22 | Taiheiyo Cement Corp | Metal-ceramics composite and its manufacture |
US6223753B1 (en) * | 1999-10-04 | 2001-05-01 | Zhen-Xing Lo | Manual hairdressing and styling device |
ITBO20010680A1 (en) * | 2001-11-09 | 2003-05-09 | Ga Ma Italia S R L | ELECTRICAL EQUIPMENT FOR HEAT TREATMENT OF HAIR |
-
2003
- 2003-08-27 GB GBGB0319969.2A patent/GB0319969D0/en not_active Ceased
-
2004
- 2004-08-26 AT AT04768191T patent/ATE392158T1/en not_active IP Right Cessation
- 2004-08-26 ES ES04768191T patent/ES2305841T3/en active Active
- 2004-08-26 GB GB0418981A patent/GB2405584A/en not_active Withdrawn
- 2004-08-26 EP EP04768191A patent/EP1657993B1/en not_active Not-in-force
- 2004-08-26 DE DE602004013162T patent/DE602004013162T2/en active Active
- 2004-08-26 WO PCT/GB2004/003635 patent/WO2005020742A1/en active IP Right Grant
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101658355B (en) * | 2009-07-14 | 2011-11-09 | 深圳市奋达电器有限公司 | Temperature correction device and method for hair straightener |
US11589661B2 (en) | 2017-01-12 | 2023-02-28 | Dyson Technology Limited | Hand held appliance |
Also Published As
Publication number | Publication date |
---|---|
GB2405584A (en) | 2005-03-09 |
EP1657993A1 (en) | 2006-05-24 |
GB0418981D0 (en) | 2004-09-29 |
DE602004013162D1 (en) | 2008-05-29 |
ES2305841T3 (en) | 2008-11-01 |
DE602004013162T2 (en) | 2009-07-02 |
WO2005020742A1 (en) | 2005-03-10 |
GB0319969D0 (en) | 2003-09-24 |
ATE392158T1 (en) | 2008-05-15 |
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