EP1206165B1 - Plaque de cuisson possédant une plaque céramique transparente, non unie ou alternativement une plaque en verre constituée d'un verre spécial trempé utilisé comme surface de cuisson - Google Patents

Plaque de cuisson possédant une plaque céramique transparente, non unie ou alternativement une plaque en verre constituée d'un verre spécial trempé utilisé comme surface de cuisson Download PDF

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Publication number
EP1206165B1
EP1206165B1 EP01124749A EP01124749A EP1206165B1 EP 1206165 B1 EP1206165 B1 EP 1206165B1 EP 01124749 A EP01124749 A EP 01124749A EP 01124749 A EP01124749 A EP 01124749A EP 1206165 B1 EP1206165 B1 EP 1206165B1
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EP
European Patent Office
Prior art keywords
pigments
glass
layer
area
colours
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.)
Expired - Lifetime
Application number
EP01124749A
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German (de)
English (en)
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EP1206165A3 (fr
EP1206165A2 (fr
Inventor
Dietmar Wennemann
Susanne Dr. Rapp
Monica Cotlear De Witzmann
Peter Dr. Nass
Evelin Weiss
Dieter Schönig
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Schott AG
Original Assignee
Schott AG
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Filing date
Publication date
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Publication of EP1206165A2 publication Critical patent/EP1206165A2/fr
Publication of EP1206165A3 publication Critical patent/EP1206165A3/fr
Application granted granted Critical
Publication of EP1206165B1 publication Critical patent/EP1206165B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits

Definitions

  • the invention relates to a hob with a transparent, not colored glass ceramic plate or alternatively with a glass plate tempered special glass as cooking surface, with radiant heating elements has heated cooking zones, are attached to the decors and their Bottom of an IR-permeable layer of a temperature-resistant color wearing.
  • Hobs with a glass ceramic plate as a cooking surface are common Technology.
  • a glass ceramic plate which is used with coloring ions to reduce the Transmission is colored so that the below the glass ceramic plate housed functional components of the hob practically from above are not visible. These cooking surfaces are therefore practically not transparent and appear black in supervision.
  • the invention is based on the object, the aforementioned conspicuousness reduce and specify a surface protection or in a simple way to realize given color impressions.
  • the color pigments the plain-colored lower layer and the upper side Vollzandekor für selected so that in plan view, a whitish or creamy or bisquitierir color impression results.
  • the creamy or bisquit shame color impression in connection with the top-side full-surface decorative layer reduces in a special way Abnormalities of contamination, in particular of Fingerprints.
  • the top-side full-surface decorative layer also provides protection from surface scratches, from metal abrasion and signs of wear.
  • the temperature-resistant Colors printed and baked are identical to one embodiment of the invention. This method of printing allows a simple and thus economical production of the decorated Glass or glass ceramic plate, wherein in the case of glass ceramic plates the typical nub structure makes it difficult to paint.
  • Metal and / or precious metal compounds are based and / or colloidal metals contain, so-called chandelier colors, precious metal resinates or in general "organometallic" colors, as well as organometallic colors, in addition can be pigmented as desired, as well as colors with a sol-gel-based matrix, which either have a characteristic intrinsic color and / or In addition, can be pigmented arbitrarily, being in the hot area preferably conventional, inorganic pigments or chandelier, pearlescent interference pigments or any mixtures of these pigments used can be.
  • organometallic Colors for the cold range also come the above-mentioned organometallic Colors, luster colors, precious metal resinates, and / or additionally arbitrary pigmented organometallic colors, luster colors, precious metal resinates in Question, and / or organic colors, lakes, colors based on organic modified glasses and / or colors made from an organic binding matrix or sol-gel based matrix and conventional, organic Dyes or inorganic pigments, chandelier, metallic effect, pearlescent or Interference pigments or different mixtures of these pigments.
  • the first mentioned "organometallic" colors and colors based on a Sol-gel matrix have the necessary temperature resistance, too the direct irradiation by the cooking zones heated To be able to withstand radiation elements permanently.
  • the aforementioned colors are, depending on the color material, at different Temperatures burned.
  • the invention are to achieve special Color effects in some cases from the aforementioned organometallic Solutions formed with metal and / or precious metal components as colors Decors that are usually opaque enough with organic colors or Colors consisting of an organic, preferably polymeric binding matrix or Matrix based on sol-gel and conventional, inorganic pigments, Chandelier, metallic effect, pearlescent or interference pigments or various Mixtures of these pigments contain deposited.
  • organometallic solutions with metal and / or precious metal components formed colors can also be used to create new effects conventional, inorganic pigments, chandelier, metallic effect, perglaze or Interference pigments or various mixtures of these pigments be offset and, if necessary, with organic colors, paints, colors based on organically modified glasses and / or colors that come from a organic, preferably polymeric binding matrix or sol-gel based matrix exist and are pigmented arbitrarily, be backprinted.
  • the underside layer is through applied a multiple printing multiple layers.
  • the Transmittance can be adjusted, which in particular special Functional areas, such as display windows, can be displayed on the cooking surface.
  • metallic effects can also be achieved in this way especially with regard to the possible combinations with stainless steel Kundsenseite are desired.
  • the hob is so designed that in the cold region of the glass or glass ceramic plate a laminated film, e.g. a thin aluminum foil or a temperature-resistant polyester or melamine resin film, with highly transparent Glue and only in the cooking zone hot areas a color layer the temperature-resistant colors applied, in particular a single-layered or multilayer precious metal and / or chandelier paint layer, the latter is preferred due to higher IR transparency.
  • a laminated film e.g. a thin aluminum foil or a temperature-resistant polyester or melamine resin film, with highly transparent Glue and only in the cooking zone hot areas a color layer the temperature-resistant colors applied, in particular a single-layered or multilayer precious metal and / or chandelier paint layer, the latter is preferred due to higher IR transparency.
  • the single FIGURE shows a schematic sectional view of a Section of a hob with a transparent, not colored Glass ceramic plate 1 as a cooking surface.
  • This glass ceramic plate 1 has at least one indicated by dashed lines Cooking zone 2, the hot area, on which an electrically operated radiant heating element 3 is assigned.
  • the hot region 2 typically has a Temperature of> about 350 ° C. It is surrounded by a dashed line indicated annular transition zone 4 with a thickness of 0 - 25 mm and the cold zone 5, in which the temperature is usually below 220 ° C is.
  • a solid color Layer 6 applied from temperature-resistant colors.
  • This layer 6 may be formed multi-layered, consists of colors or Color combinations, one depending on the area of the plate on which they are are applied, have adapted high temperature resistance and their Applying to the underside of the plate is preferably done by printing.
  • the layer 6 consists of a layer section 6 a Colors made of organometallic solutions with metal and / or precious metal be formed. These are film-forming colors, the one or several precious metals - especially platinum, palladium, gold and silver - as well other metallic compounds dissolved in organic solvents, and / or metals colloidally containing and which substances such as resins, Cosolventien, and / or any additives are added which the color, Affect color intensity, adhesion or solubility of the chandelier colors. Manufacturers of such colors are e.g. Heraeus, Johnson Matthey, Cerdec. These colors are characterized by high color intensity at low Layer thickness and thus affect the strength of the cooking surfaces only slightly.
  • the temperature resistance is between 500 depending on the color and 950 ° C in continuous operation and can with more temperature resistant colors temporarily up to 1000 ° C.
  • the transmission in the visible spectral range can be further reduced.
  • the infrared transmission depends on the simple printing - depending on the type of glass ceramic and the used Pressure screen - typically between 60 - 85%, resulting in heat transfer when cooking, especially when using bad dishes, contributes. This effect is supported by the material of the Glass ceramic plate 1 itself already has a very high IR transparency. Of the Branding occurs either in the primary fire, during the so-called Ceramization, as described in DE 35 05 922 C1, or in a special secondary firing at typ. 200 ° C to 900 ° C, preferably at approx.
  • organometallic in particular chandelier colors used, which have a lower temperature resistance and of which have a wider color spectrum in the white / yellowish range stands.
  • a others e.g. lighter "organometallic" color used, if necessary, with a Cover layer is backprinted.
  • the cover layer is in one case an organic Colour.
  • the temperature resistance is common in this type of paint Max. 180 to 300 ° C. This causes between the cooking zone and the organic outer layer a gap of about 0 to 25 mm recessed must be in conjunction with the usually bright insulation ring the heating elements 3 as an additional design element for design Marking of the cooking zone, the cooking zone marking, is used, and both unprinted and with a more temperature resistant color can be printed.
  • the inorganic pigments, chandelier, Pearlescent, metallic effect or interference pigments or mixtures containing various pigments, and characterized by metallic luster may stand out due to the purely organic colors significantly higher temperature resistance of about 500 to 650 ° C on the top be omitted mentioned recess.
  • topcoat color will be in connection with the different "organometallic" colors different color effects in white / yellowish Scored area.
  • effect pigments are Chandelier, pearlescent or interference pigments, in contrast to conventional pigments, layers with different refractive indices own and therefore do not absorb and scatter light, but in Reflect dependence of the layer structure more or less strongly and transmit as well as metallic effect pigments, which like a mirror the light reflect directionally.
  • Manufacturers are e.g. E. Merck, Darmstadt, BASF, Ludwigshafen - both Germany - as well as Mearl Corp., N.Y. USA, Karrira OY, Porl Finland, Tayca, Osaka, Japan.
  • glass ceramic plates are both those with back-pimpled structure as well as smooth plates on both sides.
  • the former own in generally a higher mechanical strength.
  • the smooth plates on both sides but have the advantage that display elements, such as LED LCD displays, appear easy to read without additional immersion layers.
  • the number of layers can be in the range of functional zones, such as e.g. Display windows that specifically set transparency.
  • the cooking surface can also by a Tempered special glass sheet, e.g. Lithium aluminosilicate glass (LAS glass) or borosilicate glass.
  • LAS glass Lithium aluminosilicate glass
  • borosilicate glass e.g. Lithium aluminosilicate glass (LAS glass) or borosilicate glass.
  • the upper side of the glass-ceramic plate 1 is provided with a full-surface decorative layer 7, which preferably extends in the same way over the hot and cold regions 2, 5.
  • This decorative layer 7 is preferably formed in accordance with DE 197 28 881 C1, ie ceramic inks are printed on the upper side of the glass-ceramic plate in such a way that at least two rater-shaped complementary and complementary to a closed, full-surface decorative covering of the surface Structural elements are applied as juxtaposed paint jobs.
  • This decorative layer is preferably single-colored, and consists for example of a color layer with borosilicate glass as glass flow and ceramic pigments of TiO 2 and / or CeO 2. Also, a glass color according to DE 197 21 737 C1 with SiO 2 and Al 2 O 3 as main components is applicable.
  • the color pigments of the uniticianen underside layer 6 and the top-side full-surface decorative layer 7 are chosen so that in plan view on the coated glass ceramic plate 1 alternatively a whitish, covered whitish, creamy or bisquitieris color impression results.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Surface Treatment Of Glass (AREA)
  • Electric Stoves And Ranges (AREA)
  • Baking, Grill, Roasting (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Paints Or Removers (AREA)
  • Laminated Bodies (AREA)
  • Cookers (AREA)

Claims (11)

  1. Plaque de cuisson dotée comme surface de cuisson d'une plaque (1) en vitrocéramique transparente non colorée ou d'une plaque en verre spécial trempé, qui présente des zones de cuisson (2) chauffées par des éléments de chauffage radiant (3), sur lesquelles des décors sont appliqués et dont le côté inférieur porte une couche (6) transparente aux IR, caractérisée en ce que la couche inférieure (6) est monochrome et en ce que le côté supérieur de la plaque (1) en vitrocéramique ou en verre est doté sur toute sa surface d'une couche décorative (7).
  2. Plaque de cuisson selon la revendication 1, caractérisée en ce que les pigments colorés de la couche inférieure monochrome (6) et de la couche supérieure (7) décorative sur toute la surface sont sélectionnés de manière à obtenir dans une vue en plan un aspect coloré blanchâtre, crème ou de type biscuit.
  3. Plaque de cuisson selon les revendications 1 à 2, caractérisée en ce que la couche inférieure monochrome (6)
    est constituée dans la zone de chauffe (6a) des zones de cuisson (2) en un matériau qui résiste à des températures supérieures à environ 350°C et typiquement supérieures à 500°C et
    est constituée dans la zone froide (6b) de la plaque de cuisson, située à l'extérieur des zones de cuisson (2), d'un matériau qui résiste à des températures inférieures à environ 350°C.
  4. Plaque de cuisson selon l'une des revendications 1 à 3, caractérisée en ce qu'au moins dans la zone de chauffe (6a), la couche inférieure (6) est constituée de peintures qui sont constituées de solutions organométalliques qui contiennent des complexes et/ou des colloïdes de métaux et/ou de métaux nobles et qui contiennent facultativement des pigments ou des mélanges de pigments.
  5. Plaque de cuisson selon l'une des revendications 1 à 3, caractérisée en ce qu'au moins dans la zone de chauffe (6a), la couche inférieure (6) est constituée de couches de sol-gel qui contiennent facultativement des pigments ou des mélanges de pigments.
  6. Plaque de cuisson selon l'une des revendications 3 à 5, caractérisée en ce que dans la zone froide (5) et/ou dans la zone de transition (4) dans laquelle les températures peuvent atteindre environ 350°C, la couche inférieure (6b) est constituée de peintures glacées, éventuellement pigmentées, ou d'autres peintures organométalliques, en particulier des résines de métaux nobles, des peintures anticorrosion, éventuellement pigmentées, ou des couches sol-gel, éventuellement pigmentées, qui résistent au moins jusqu'à cette température.
  7. Plaque de cuisson selon l'une des revendications 3 à 5, caractérisée en ce que dans la zone froide (5) et/ou dans la zone de transition (4) dans lesquelles les températures peuvent atteindre environ 350°C, la couche inférieure (6b) est constituée de peintures organiques, par exemple des peintures colorées, des peintures à base de verre modifié par des substances organiques et/ou des peintures qui sont constituées d'une matrice organique de liant, de préférence polymère, ou d'une matrice à base de sol-gel, et qui contiennent des pigments minéraux classiques, des pigments glacés, des pigments à effet métallique, des pigments brillants perlés ou des pigments à interférence, ou encore différents mélanges de ces pigments.
  8. Plaque de cuisson selon l'une des revendications 4 à 7, caractérisée en ce que dans la zone de chauffe, la zone de transition et la zone froide (2, 4, 5), la couche inférieure (6) est chaque fois constituée d'une combinaison des peintures qui résistent aux températures qui règnent dans la zone respective.
  9. Plaque de cuisson selon l'une des revendications 1 à 8, caractérisée en ce que la couche inférieure (6) présente plusieurs sous-couches.
  10. Plaque de cuisson selon l'une des revendications 1 à 9, caractérisée en ce que la couche inférieure (6) est placée en dessous d'une couche de recouvrement (8) de couleur différente.
  11. Plaque de cuisson selon l'une des revendications 1 à 10, caractérisée en ce que dans la zone froide (5), un film, de préférence un fil en aluminium, un film en acier allié ou un film en matière synthétique qui résiste aux températures correspondantes, par exemple un film de polyester ou un film de résine de mélamine, est stratifié sur la plaque (1) en verre ou en vitrocéramique, une couche colorée (6) constituée de peintures qui résistent aux températures correspondantes étant appliquée uniquement dans les zones de chauffe (2).
EP01124749A 2000-11-11 2001-10-17 Plaque de cuisson possédant une plaque céramique transparente, non unie ou alternativement une plaque en verre constituée d'un verre spécial trempé utilisé comme surface de cuisson Expired - Lifetime EP1206165B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20019210U DE20019210U1 (de) 2000-11-11 2000-11-11 Kochfeld
DE20019210U 2000-11-11

Publications (3)

Publication Number Publication Date
EP1206165A2 EP1206165A2 (fr) 2002-05-15
EP1206165A3 EP1206165A3 (fr) 2003-11-26
EP1206165B1 true EP1206165B1 (fr) 2005-01-05

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EP01124749A Expired - Lifetime EP1206165B1 (fr) 2000-11-11 2001-10-17 Plaque de cuisson possédant une plaque céramique transparente, non unie ou alternativement une plaque en verre constituée d'un verre spécial trempé utilisé comme surface de cuisson

Country Status (7)

Country Link
US (1) US7009150B2 (fr)
EP (1) EP1206165B1 (fr)
JP (1) JP3665990B2 (fr)
CN (1) CN1198532C (fr)
AT (1) ATE286646T1 (fr)
DE (2) DE20019210U1 (fr)
ES (1) ES2233549T3 (fr)

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DE4426234C1 (de) 1994-07-23 1996-03-14 Schott Glaswerke Mit keramischen Farben dekorierter Glaskeramikartikel und Verfahren zu seiner Herstellung
JP3823431B2 (ja) * 1997-03-27 2006-09-20 鳴海製陶株式会社 遮光性ガラスプレート
DE19721737C1 (de) 1997-05-24 1998-11-12 Schott Glas Blei- und cadmiumfreie Glaszusammensetzung zum Glasieren, Emaillieren und Dekorieren von Gläsern oder Glaskeramiken sowie Verfahren zur Herstellung einer damit beschichteten Glaskeramik
DE29711916U1 (de) * 1997-07-07 1997-08-21 Schott Glaswerke Mit keramischen Farben dekorierter Glaskeramikartikel
DE19728881C1 (de) * 1997-07-07 1998-09-10 Schott Glaswerke Mit keramischen Farben dekorierter Glaskeramikartikel
CZ169298A3 (cs) * 1997-07-15 1999-02-17 Ako-Werke Gmbh & Co. Kg Topný vodič pro sálavé topné těleso kuchyňského vařiče
US6525300B1 (en) * 1999-07-30 2003-02-25 Schott Glas Cooking surface for cooking food having a glass ceramic surface with a glass coating thereon
WO2001058212A1 (fr) * 2000-02-01 2001-08-09 E.G.O. Elektro-Gerätebau GmbH Element de chauffage electrique et son procede de fabrication
SE515785C2 (sv) * 2000-02-23 2001-10-08 Obducat Ab Anordning för homogen värmning av ett objekt och användning av anordningen
DE10014373C2 (de) * 2000-03-23 2003-12-11 Schott Glas Kochfeld
DE20005461U1 (de) * 2000-03-23 2000-06-08 Schott Glas Kochfeld
DE10017698B9 (de) * 2000-04-08 2007-11-29 Schott Ag Reinigungsfreundlicher Glaskeramikkörper
DE20016145U1 (de) * 2000-09-18 2001-01-18 Schott Glas Kochfeld mit mindestens einem atmosphärischen Gasbrenner

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CN1357296A (zh) 2002-07-10
EP1206165A3 (fr) 2003-11-26
ES2233549T3 (es) 2005-06-16
JP3665990B2 (ja) 2005-06-29
EP1206165A2 (fr) 2002-05-15
US20020084263A1 (en) 2002-07-04
DE20019210U1 (de) 2001-01-25
CN1198532C (zh) 2005-04-27
US7009150B2 (en) 2006-03-07
DE50105019D1 (de) 2005-02-10
JP2002206756A (ja) 2002-07-26
ATE286646T1 (de) 2005-01-15

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