DE620192C - Process for the production of glass mirrors with a glass cover layer - Google Patents
Process for the production of glass mirrors with a glass cover layerInfo
- Publication number
- DE620192C DE620192C DEG89229D DEG0089229D DE620192C DE 620192 C DE620192 C DE 620192C DE G89229 D DEG89229 D DE G89229D DE G0089229 D DEG0089229 D DE G0089229D DE 620192 C DE620192 C DE 620192C
- Authority
- DE
- Germany
- Prior art keywords
- glass
- mirror
- mirrors
- cover layer
- production
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
- C03C17/3644—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the metal being silver
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
- C03C17/3657—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating having optical properties
- C03C17/3663—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating having optical properties specially adapted for use as mirrors
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
Description
Verfahren zur Herstellung von Glasspiegeln mit Glasdeckschicht Man hat bereits Spiegel mit einer besonderen Rückwand versehen, um den Silberbelag gegen Nässe und Beschädigung recht wirksam und dauerhaft zu schützen. Hierzu hat man Holz und Kork, gelegentlich auch andere Stoffe, insbesondere Glas, verwandt.Process for the production of glass mirrors with a glass cover layer Man has already provided mirrors with a special back wall to counter the silver coating To protect moisture and damage quite effectively and permanently. You have wood for this and cork, occasionally also other materials, especially glass.
Eine Glasdeckschicht ist besonders widerstandsfähig gegen die Einwirkung von Nässe und Chemikalien, so daß sich Spiegel mit solcher Rückwand gut für Baderäume eignen. Man verfügt auch über geeignete Verfahren, um den Spiegel mit derGlasdeckschicht durch einen Lack fest zu verbinden. Doch gelang es nicht, die Ränder so abzudecken, daß nicht mit der Zeit Feuchtigkeit und besonders Chemikalien, wie sie z. B. in Badeanstalten, in welchen Heilbäder verabreicht werden, die Luft erfüllen, von den Kanten her eindrangen.A glass top layer is particularly resistant to the effects from moisture and chemicals, so that mirrors with such a back wall are good for bathrooms suitable. Appropriate methods of covering the mirror with the glass cover are also in place to be firmly connected by a varnish. But it was not possible to cover the edges so that not moisture and especially chemicals such. Am Bathing establishments in which medicinal baths are administered that fill the air from the Penetrating edges.
Ein äußerer Kantenschutz wird allmählich infolge der verschiedenen Ausdehnung der aufeinanderliegenden Schichten von feinen Rissen durchsetzt und ist auch insofern störend, als Spiegelkanten sauber poliert gewünscht werden. Eine solche Polierung läßt ein außen aufliegender; zum Kantenschutz dienender Lacküberzug nicht gut zu.An outer edge protector gradually becomes as a result of the various Expansion of the layers on top of one another and is interspersed with fine cracks also annoying insofar as mirror edges are desired to be cleanly polished. Such Polishing leaves an exterior; Lacquer coating not used for edge protection good to.
Nach vorliegender Erfindung ist es möglich, dieseSchwierigkeiten zu überwinden. Es zeigte sich nämlich, daß eine vollkommen dichte und dauerhafte Verbindung des Spiegels mit der Glasrückfläche möglich wurde, wenn man zunächst den in üblicher Weise auf die Spiegelrückfläche gebrachten Silberniederschlag rund um die Kanten herum in einer Breite von wenigen Millimetern mechanisch abtrug, dann den geeigneten, den Silbernie.derschlag nicht angreifenden und Glas mit Glas verbindenden Lack in bekannter Weise auf die Spiegelrückseite auftrug; die zum Schutz bestimmte Glasscheibe von gleichen Ausmaßen wieder Spiegel auflegte und nun beide Teile durch Anwendung vonÜber- oder Unterdruck unter gleichzeitiger, den gewählten Bindemitteln entsprechender Erwärmung miteinander vereinigte.According to the present invention, it is possible to overcome these difficulties overcome. It turned out to be a perfectly tight and permanent connection of the mirror with the rear surface of the glass became possible if one first used the usual Silver deposit around the edges on the back of the mirror mechanically removed around a width of a few millimeters, then the suitable, lacquer that does not attack the silver finish and connects glass with glass in a known way applied to the back of the mirror; the glass pane intended for protection of the same dimensions again put on mirrors and now both parts by application of overpressure or underpressure at the same time, depending on the selected binders Warming united.
Die Entfernung der Silberschicht kann auch mit chemischen Mitteln erfolgen. Man kann aber auch vor der Aufbringung des Silberbelages in der gewünschten Breite eine Randschicht aus einem Stoff in bekannter Weise aufbringen, auf dem das Silber nicht haftet bzw. mit dem es leicht zu entfernen ist.The removal of the silver layer can also be done with chemical means take place. But you can also before the application of the silver coating in the desired Spread an edge layer of a fabric in the known manner on which the Silver does not adhere or with which it is easy to remove.
Die Vereinigung der beiden Glasteile kann in geheizten Flüssigkeitspressen vorgenommen werden. Besonders wenig Ausschuß erhält man aber, wenn man die Vereinigung in Druckbehältern vornimmt, denen man die nötige Wärme in bekannter Weise zuführt. Die Verwendung von Druckbehältern für die Herstellung von Sicherheitsglas ist bekannt, für die Herstellung von Dauerspiegeln aber noch nicht vorgeschlagen und der Verwendung von Flüssigkeitspressen vorzuziehen.The union of the two glass parts can press in heated liquid be made. But you get particularly little scrap if you join the association takes place in pressure vessels to which the necessary heat is supplied in a known manner. The use of pressure vessels for the production of safety glass is known, for the production of permanent mirrors but not yet proposed and the use preferable for liquid presses.
Die nach dem Verfahren der Erfindung hergestellten Spiegel leisten stärkster Beanspruchung Widerstand, können z. B. 2q. Stunden in ein Säurebad eingelegt werden, ohne daß die Säure eindringt. Nimmt man den äußersten Rand der Silberschicht nicht fort, dringt die Säure in kurzer Zeit zwischen der Spiegelrückseite und der Glasschutzscheibe, die sonst unter den gleichen Bedingungen miteinander verbunden sind, ein.Make the mirrors produced by the method of the invention strongest stress resistance, z. B. 2q. Immersed in an acid bath for hours without the acid penetrating. If you take that outermost edge If the silver layer does not go away, the acid penetrates between the back of the mirror in a short time and the protective glass pane, which are otherwise under the same conditions with each other connected, a.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG89229D DE620192C (en) | 1934-11-21 | 1934-11-21 | Process for the production of glass mirrors with a glass cover layer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG89229D DE620192C (en) | 1934-11-21 | 1934-11-21 | Process for the production of glass mirrors with a glass cover layer |
Publications (1)
Publication Number | Publication Date |
---|---|
DE620192C true DE620192C (en) | 1935-10-16 |
Family
ID=7138997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEG89229D Expired DE620192C (en) | 1934-11-21 | 1934-11-21 | Process for the production of glass mirrors with a glass cover layer |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE620192C (en) |
-
1934
- 1934-11-21 DE DEG89229D patent/DE620192C/en not_active Expired
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