EP1206165A2 - Kochfeld mit einer transparenten, nicht eingefärbten Glaskeramikplatte oder alternativ mit einer Glasplatte aus vorgespannten Spezialglas als Kochfläche - Google Patents
Kochfeld mit einer transparenten, nicht eingefärbten Glaskeramikplatte oder alternativ mit einer Glasplatte aus vorgespannten Spezialglas als Kochfläche Download PDFInfo
- Publication number
- EP1206165A2 EP1206165A2 EP01124749A EP01124749A EP1206165A2 EP 1206165 A2 EP1206165 A2 EP 1206165A2 EP 01124749 A EP01124749 A EP 01124749A EP 01124749 A EP01124749 A EP 01124749A EP 1206165 A2 EP1206165 A2 EP 1206165A2
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- European Patent Office
- Prior art keywords
- colors
- layer
- pigments
- color
- glass
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- 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 toughened special glass as cooking surface, with radiant heating elements has heated cooking zones, are attached to the decors and their Underside of an IR-permeable layer made of a temperature-resistant color wearing.
- Hobs with a glass ceramic plate as the cooking surface are common Technology. As is evident from EP 0 220 333, they typically have a glass ceramic plate with colored ions to reduce the Transmission is colored so that the underneath the glass ceramic plate Functional components of the hob housed practically from above are not visible. These cooking surfaces are therefore practically not transparent and appear black under supervision.
- the invention has for its object to the aforementioned conspicuousness reduce and specify a surface protection or in a simple manner to realize given color impressions.
- the color pigments are the plain colored underside and the top layer Full surface decor layer chosen so that a whitish or creamy-white or bisque-like color impression results.
- the cream-white or bisque-like color impression in connection with the top surface full-surface decor layer reduced in a special way Abnormalities in terms of soiling, especially from Fingerprints.
- the full-surface decorative layer on the top also offers protection from surface scratches, metal abrasion and signs of wear.
- the temperature-resistant Colors printed and branded are printed and branded. This method of printing allows a simple and therefore economical production of the decors Glass or glass ceramic plate, the in the case of glass ceramic plates typical nub structure complicates the application of paint.
- Metal and / or noble metal compounds are based and / or colloidal metals contain, so-called luster 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 matrix based on sol-gel, which either have a characteristic intrinsic color and / or can also be pigmented as desired, being in the hot area preferably conventional, inorganic pigments or luster, pearlescent interference pigments or any mixtures of these pigments are used can be.
- organometallic materials also come for the cold area Colors, luster colors, precious metal resinates, and / or any additional pigmented organometallic colors, luster colors, precious metal resinates in Question, and / or organic colors, colored paints, colors based on organic modified glasses and / or colors made from an organic binding matrix or sol-gel based matrix and conventional organic ones Dyes or inorganic pigments, luster, metallic effect, pearlescent or Interference pigments or various mixtures of these pigments contain.
- the former "organometallic" colors and colors based on a Sol-gel matrix have the necessary temperature resistance in order to direct radiation from the heating of the cooking zones To be able to permanently resist radiation elements.
- the aforementioned colors are, depending on the color material, at different Branded temperatures.
- the invention are special to achieve Color effects in some cases from the aforementioned organometallic Solutions with metal and / or precious metal parts formed as colors Decors that are usually opaque enough with organic colors or Colors that consist of an organic, preferably polymeric or binding matrix Sol-gel based matrix and conventional, inorganic pigments, Luster, metallic effect, pearlescent or interference pigments or various Contain mixtures of these pigments.
- organometallic solutions with metal and / or precious metal components Formed colors can also be used to create new effects conventional, inorganic pigments, luster, metallic effect, pearlescent or interference pigments or various mixtures of these pigments and if necessary with organic paints, color lacquers, paints on the basis of organically modified glasses and / or colors, which consist of a organic, preferably polymeric binder matrix or sol-gel based matrix exist and are pigmented as desired, are back-printed.
- Combinations of transparent luster colors are also included Precious metal colors as underprinting, particularly conceivable in the cold area.
- the underside layer is through a multiple print applied in multiple layers.
- the Transmittance can be set, which is particularly special Have functional areas, such as display windows, shown on the cooking surface.
- metallic effects can also be achieved in this way especially with regard to the combination options with stainless steel from Customer side are desired.
- the hob is like this trained that a in the cold region of the glass or glass ceramic plate laminated film, e.g. a thin aluminum foil or a temperature-resistant polyester or melamine resin film, with highly transparent Glue and only a layer of paint in the cooking zone hot areas applied the temperature-resistant colors, especially a single-layer or multilayer precious metal and / or luster color layer, the latter is preferred due to higher IR transparency.
- a in the cold region of the glass or glass ceramic plate laminated film e.g. a thin aluminum foil or a temperature-resistant polyester or melamine resin film
- highly transparent Glue e.g. a thin aluminum foil or a temperature-resistant polyester or melamine resin film
- FIG. Shows a schematic sectional illustration of a Detail of a cooktop 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 area 2 typically has one Temperature of> approx. 350 ° C. It is surrounded by a dashed line indicated annular transition zone 4 with a thickness of 0 - 25 mm and the cold region 5, in which the temperature is usually below 220 ° C.
- Layer 6 of temperature-resistant paints applied on the underside of the transparent glass ceramic plate 1 .
- This layer 6 that can also be 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 Application to the underside of the plate is preferably carried out by printing.
- the layer 6 consists of a layer section 6 a Colors made from organometallic solutions with metal and / or precious metal be formed. These are film-forming colors that one or several precious metals - especially platinum, palladium, gold and silver - as well further metallic compounds, dissolved in organic solvents, and / or contain metals colloidally, and to which substances such as resins, Cosolventien, and / or any additives are added, the color, Affect color intensity, adhesion or solubility of the luster 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 only affect the strength of the cooking surfaces slightly. Depending on the color, the temperature resistance is between 500 and 950 ° C in continuous operation and can with more temperature-resistant colors be briefly up to 1000 ° C.
- the infrared transmission lies with simple printing - depending on the type of glass ceramic and the one 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 fact that the material of the Glass ceramic plate 1 already has a very high IR transparency.
- the Firing takes place either in the primary firing, during the so-called Ceramization, as described in DE 35 05 922 C1, or in one special secondary firing at typically 200 ° C to 900 ° C, preferably at approx. 460 to 650 ° C for less temperature-resistant colors for approx. 5 to 60 min, or at approx.
- organometallic especially chandelier colors used, which have a lower temperature resistance and of a broader color spectrum in the white / yellowish range stands.
- a color distinction is used others, e.g. lighter "organometallic" color used, possibly with a Top layer is back-printed.
- the cover layer is an organic one Colour.
- the temperature resistance of this type of paint is usually Max. 180 to 300 ° C. This means that between the cooking zone and the organic covering layer, a space of approx. 0 to 25 mm is left out must be in connection with the usually bright insulation ring of the heating elements 3 as an additional design element Identification 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, luster, Pearlescent, metallic effect or interference pigments or mixtures contain different pigments, and which are characterized by metallic luster can distinguish because of the purely organic colors significantly higher temperature resistance from approx. 500 to 650 ° C to the above mentioned recess can be dispensed with.
- O. g. Colors can be used in the cold area in combination with the Use "organometallic" colors, as well as use alone.
- effect pigments are Luster, pearlescent or interference pigments, which are in contrast to conventional pigments, layers with different refractive indices own and thus do not absorb and scatter light, but in More or less reflect the dependence of the layer structure and transmit, as well as metallic effect pigments that reflect light like a mirror directed reflect.
- Manufacturers are e.g. E. Merck, Darmstadt, BASF, Ludwigshafen - both Germany - as well as Mearl Corp., N.Y. United States, Karrira OY, Porl Finland, Tayca, Osaka, Japan.
- Glass ceramic plates come with both those with a knob structure on the back as well as smooth plates on both sides.
- the former own in generally higher mechanical strength.
- the smooth plates on both sides have the advantage, however, that display elements, such as LED LCD displays, appear legible without additional layers of immersion.
- the number of layers can be in the range of functional zones, such as e.g. Display windows that specifically set transparency.
- the slide is with transparent temperature-resistant adhesives on the underside of the Glass ceramic plate 1 glued.
- adhesives e.g. from 3M, UV-curing adhesive, or highly transparent silicone adhesive, preferably 2K systems.
- the adhesive layers may have to compensate for the knob structure (typically 50 to 150 ⁇ m high), which results in a minimum layer thickness of 150 ⁇ m.
- the glue for a sufficiently high water vapor resistance to watch out for, as it heats up from the insulation ring of the heating elements 3 water vapor is emitted.
- the cooking surface can also be replaced by a Glass plate made of tempered special glass, 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 top 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 areas 2, 5.
- This decorative layer 7 is preferably designed in accordance with DE 197 28 881 C1, ie ceramic colors are printed on the upper side of the glass ceramic plate using the screen printing method in such a way that at least two mutually corresponding and complementary to a closed, full-surface decorative covering of the surface is shaped like a rater Structural elements are applied as side-by-side paint applications.
- This decorative layer is preferably plain-colored and consists, for example, of a colored layer with borosilicate glass as the glass flux and ceramic pigments made of TiO2 and / or CeO2.
- a glass color according to DE 197 21 737 C1 with SiO2 and Al 2 O 3 as main components can also be used.
- the color pigments of the plain-colored underside layer 6 and that of The full-surface decor layer 7 on the top side is selected such that it is in plan view on the coated glass ceramic plate 1 alternatively a whitish, covered whitish, creamy-white or bisque-like color impression results.
Abstract
Description
- Mindestens bis 350° C, d.h. in direkten Anschluß an den
Heißbereich druckbar (ohne Spalt)
z.B.:
- a: Antikorrosionsfarben mit Metallpigmenten
- b: Lüsterfarben mit Temperaturstabilität bis zu 500° C, z.B. von Heraeus, D.; Johnson Matthey, NL.
- c: Lüsterfarben mit Temperaturstabilität bis zu 500° C, die konventionelle anorganische Pigmente, Lüster-, Metalleffekt-, Perlglanz-, oder Interferenz-Pigmenten oder verschiedenste Mischungen dieser Pigmente enthalten
- d: Edelmetallfarben, -resinate mit Temperaturstabilität bis zu 900° C, z.B. von Johnson Matthey, Heraeus, D., Cerdec
- e: Sol-Gel-Schichten oder pigmentierte Sol-Gel-Schichten, die konventionelle anorganische Pigmente, Lüster-, Metalleffekt-, Perlglanz-, oder Interferenz-Pigmenten oder verschiedenste Mischungen dieser Pigmente enthalten.
- Bis 300° C:
- f: organische Farben mit anorganischen Farbstoffen z.B.: Farblacke oder Hydroglasuren von der Firma Diegel, Alsfeld, D.
- Bis 180° C - 220° C:
- g: organische Farben mit organischen Farbstoffen, z.B. von Heraeus, D.
- h: Farben auf Basis organisch modifizierter Gläser
- i: auflaminierte Folien, z.B. Aluminiumfolien, Polyesterfolien, Melaminharzfolien
- Desweiteren alle denkbaren Kombinationen aus den in 1 und 2 genannten Beschichtungsmitteln, z.B. im Kaltbereich 2b+2f, 2c+2f, 2b+2a, 2b+2d, 2b+2e etc.
Claims (11)
- Kochfeld mit einer transparenten, nicht eingefärbten Glaskeramikplatte (1) oder Glasplatte aus vorgespanntem Spezialglas als Kochfläche, die mit Strahlungsheizelementen (3) beheizte Kochzonen (2) aufweist, an der Dekore aufgebracht sind und deren Unterseite eine IR-durchlässige Schicht (6) trägt, dadurch gekennzeichnet, daß die unterseitige Schicht (6) unifarben ausgebildet ist und die Oberseite der Glaskeramik- oder Glasplatte (1) mit einer Vollflächendekorschicht (7) versehen ist.
- Kochfeld nach Anspruch 1, dadurch gekennzeichnet, daß die Farbpigmente der unifarbenen unterseitigen Schicht (6) und die der oberseitigen Vollflächendekorschicht (7) so gewählt sind, daß sich in Draufsicht ein weißlicher oder cremeweißlicher oder bisquitartiger Farbeindruck ergibt.
- Kochfeld nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die unifarbene unterseitige Schicht (6)im Heißbereich (6 a) der Kochzonen (2) aus einem Material besteht, das bei Temperaturen größer als ca. 350° C, typischerweise größer als 500° C, beständig ist, undim Kaltbereich (6 b) der Kochfläche außerhalb der Kochzonen (2) aus einem Material besteht, das bei Temperaturen unterhalb von ca. 350° C beständig ist.
- Kochfeld nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die unterseitige Schicht (6) zumindest im Heißbereich (6 a) aus Farben, bestehend aus organometallischen Lösungen mit komplexierten und/oder kolloidalen Metall- und/oder Edelmetallanteilen (Lüsterfarben, Edelmetallresinate), die optional Pigmente oder Mischungen von Pigmenten enthalten, aufgebaut ist.
- Kochfeld nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die unterseitige Schicht (6) zumindest im Heißbereich (6 a) aus Sol-Gel-Schichten, die optional Pigmente oder Mischungen von Pigmenten enthalten, besteht.
- Kochfeld nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß im Kaltbereich (5) und/oder im Übergangsbereich (4), in dem Temperaturen bis ca. 350° C erreicht werden, die unterseitige Schicht (6 b) aus Lüsterfarben, ggf. pigmentiert oder anderen organometallischen Farben, insbesondere Edelmetallresinate, Antikorrosivfarben, ggf. pigmentiert oder Sol-Gel-Schichten, ggf. pigmentiert, die mindestens bis zu dieser Temperatur beständig sind, besteht.
- Kochfeld nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß im Kaltbereich (5) und/oder im Übergangsbereich (4), in dem Temperaturen bis ca. 300° C erreicht werden, die unterseitige Schicht (6 b) aus organischen Farben, wie Farblacke, Farben auf Basis organisch modifizierter Gläser und/oder Farben, die aus einer organischen, vorzugsweise polymeren Bindematrix oder Matrix auf Sol-Gel-Basis bestehen und konventionelle, anorganische Pigmente, Lüster-, Metalleffekt-, Perlglanz-, oder Interferenz-Pigmente oder verschiedene Mischungen dieser Pigmente enthalten, besteht.
- Kochfeld nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, daß die unterseitige Schicht (6) in dem Heiß-, Übergangs- und Kaltbereich (2, 4, 5) jeweils aus einer Kombination der für den Bereich temperaturbeständigen Farben besteht.
- Kochfeld nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die unterseitige Schicht (6) mehrlagig ausgebildet ist.
- Kochfeld nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die unterseitige Schicht (6) mit einer Deckschicht (8) aus einer anderen Farbe hinterlegt ist.
- Kochfeld nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß im Kaltbereich (5) der Glas- oder Glaskeramikplatte (1) eine Folie, vorzugsweise eine Aluminiumfolie oder eine Edelstahl- oder eine entsprechend temperaturbeständige Kunststofffolie, wie z.B. eine Polyesterfolie oder Melaminharzfolie mit hochtransparenten Klebern auflaminiert ist und lediglich in den Heißbereichen (2) eine Farbschicht (6) aus den entsprechenden temperaturbeständigen Farben aufgebracht ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20019210U | 2000-11-11 | ||
DE20019210U DE20019210U1 (de) | 2000-11-11 | 2000-11-11 | Kochfeld |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1206165A2 true EP1206165A2 (de) | 2002-05-15 |
EP1206165A3 EP1206165A3 (de) | 2003-11-26 |
EP1206165B1 EP1206165B1 (de) | 2005-01-05 |
Family
ID=7948719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01124749A Expired - Lifetime EP1206165B1 (de) | 2000-11-11 | 2001-10-17 | Kochfeld mit einer transparenten, nicht eingefärbten Glaskeramikplatte oder alternativ mit einer Glasplatte aus vorgespanntem Spezialglas als Kochfläche |
Country Status (7)
Country | Link |
---|---|
US (1) | US7009150B2 (de) |
EP (1) | EP1206165B1 (de) |
JP (1) | JP3665990B2 (de) |
CN (1) | CN1198532C (de) |
AT (1) | ATE286646T1 (de) |
DE (2) | DE20019210U1 (de) |
ES (1) | ES2233549T3 (de) |
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DE3433880C2 (de) | 1984-09-14 | 1992-07-02 | Bosch-Siemens Hausgeraete Gmbh, 8000 Muenchen, De | |
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DE19728881C1 (de) | 1997-07-07 | 1998-09-10 | Schott Glaswerke | Mit keramischen Farben dekorierter Glaskeramikartikel |
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- 2000-11-11 DE DE20019210U patent/DE20019210U1/de not_active Expired - Lifetime
-
2001
- 2001-10-17 EP EP01124749A patent/EP1206165B1/de not_active Expired - Lifetime
- 2001-10-17 ES ES01124749T patent/ES2233549T3/es not_active Expired - Lifetime
- 2001-10-17 AT AT01124749T patent/ATE286646T1/de not_active IP Right Cessation
- 2001-10-17 DE DE50105019T patent/DE50105019D1/de not_active Expired - Lifetime
- 2001-11-06 JP JP2001340208A patent/JP3665990B2/ja not_active Expired - Fee Related
- 2001-11-08 US US10/010,308 patent/US7009150B2/en not_active Expired - Fee Related
- 2001-11-09 CN CNB011384247A patent/CN1198532C/zh not_active Expired - Fee Related
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DE3433880C2 (de) | 1984-09-14 | 1992-07-02 | Bosch-Siemens Hausgeraete Gmbh, 8000 Muenchen, De | |
EP0220333A1 (de) | 1985-10-26 | 1987-05-06 | Schott Glaswerke | Durchsichtige farbige Glaskeramik mit guter Temperaturbelastbarkeit und variabel einstellbarer Transmission im IR-Bereich |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004033715A1 (de) * | 2004-07-13 | 2006-02-16 | Schott Ag | Glas- oder Glaskeramikplatte mit mindestens einer Funktions-Dekorschicht |
DE102004033715B4 (de) * | 2004-07-13 | 2017-08-10 | Schott Ag | Verwendung einer Glas- oder Glaskeramikplatte |
DE102004040759A1 (de) * | 2004-08-21 | 2006-03-02 | Schott Ag | Hausgerät mit einer Glas- oder Glaskeramikplatte |
DE102004040759B4 (de) * | 2004-08-21 | 2010-09-16 | Schott Ag | Hausgerät mit einer Glas- oder Glaskeramikplatte |
EP1958481B1 (de) | 2005-12-05 | 2019-06-19 | Eurokera S.N.C. | Durchsichtige oder durchscheinende vitrokeramische scheibe und verfahren zu deren herstellung |
EP1867613A1 (de) * | 2006-06-16 | 2007-12-19 | Schott AG | Kochfeld mit einer Glaskeramikplatte als Kochfläche |
US7763832B2 (en) | 2006-06-16 | 2010-07-27 | Schott Ag | Cook top comprising a glass ceramic plate having an opaque coating and an improved window coating on a display window on an underside of the plate |
Also Published As
Publication number | Publication date |
---|---|
CN1357296A (zh) | 2002-07-10 |
US7009150B2 (en) | 2006-03-07 |
US20020084263A1 (en) | 2002-07-04 |
JP2002206756A (ja) | 2002-07-26 |
CN1198532C (zh) | 2005-04-27 |
ES2233549T3 (es) | 2005-06-16 |
DE20019210U1 (de) | 2001-01-25 |
ATE286646T1 (de) | 2005-01-15 |
EP1206165B1 (de) | 2005-01-05 |
JP3665990B2 (ja) | 2005-06-29 |
DE50105019D1 (de) | 2005-02-10 |
EP1206165A3 (de) | 2003-11-26 |
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