EP0548784B1 - Process for enhancing the appearance of a surface - Google Patents
Process for enhancing the appearance of a surface Download PDFInfo
- Publication number
- EP0548784B1 EP0548784B1 EP92121438A EP92121438A EP0548784B1 EP 0548784 B1 EP0548784 B1 EP 0548784B1 EP 92121438 A EP92121438 A EP 92121438A EP 92121438 A EP92121438 A EP 92121438A EP 0548784 B1 EP0548784 B1 EP 0548784B1
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- EP
- European Patent Office
- Prior art keywords
- copper
- binder
- process according
- coating
- constituents
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/04—Producing precipitations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44D—PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
- B44D5/00—Surface treatment to obtain special artistic surface effects or finishes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2601/00—Inorganic fillers
- B05D2601/02—Inorganic fillers used for pigmentation effect, e.g. metallic effect
Definitions
- the invention relates to a method for refining the optical Appearance of the surface one from another Material as copper existing object, in which the Surface of the object with a layer of an oxidizable Ordering agent containing copper components becomes.
- JP-A-1-31981 is a surface treatment respectively Coating objects known per se are already made from a copper material. These items get a superficial coating that already contains oxidized copper components. This will only a pre-oxidation of the surface of a copper material achieved.
- the known method is on objects made of a material other than copper cannot be used.
- the invention has for its object to provide a method with any surface, especially roofing areas made of modern materials, the look of a Can get copper surface, especially including the Signs of patination.
- the object is achieved according to the invention by a method of the type mentioned at the beginning, which is characterized by that the item using one of the copper parts binding binder due to their Thickness from 100 to 150 micrometers of the weather and its erosion and oxidation effects can be exposed to a coating.
- any conventional paint application methods are used can, for example painting, rolling, spraying and so on.
- the surface to be treated i.e. the surface, can be practically arbitrary.
- the application medium contains copper components that cause oxidation exposed, that is, they form a patina, i.e. verdigris apply, and with advantage a completely natural patina, since this is actually copper.
- the treated surface therefore receives a completely natural, appearance corresponding to a normal copper surface.
- the method according to the invention has the advantage that as a substructure functional, inexpensive building materials can be used whose appearance doesn't matter, because afterwards a surface finish takes place anyway. An erosion of the application agent from the surface would only have the consequence that the Order must be touched up without the substructure is damaged in any way, so in particular a roof is tight and weatherproof despite copper erosion remains.
- a binder of the application agent and the Copper components also separated in a two-step process can be applied from each other. First of all, the binder even spread, rolled up or in another Way to be applied. Then the copper parts are dusted on, for example using a fine sieve-dust method, and preferably until one is reached almost dry surface.
- the thickness of the binder layer can be, for example, 100 to 150 microns.
- the binder can then be cured, for example be cured hot, and if necessary subsequently be cooled. After that, the excess copper content be removed, for example suctioned off will. Then the copper parts either patinate through the weather by itself over time or it can Patination can also be accelerated by a special Patination substance, for example a patination solution, is applied.
- the binder, possibly the extender, and the total amount of copper as a homogeneous mixture, with supercritical pigment volume concentration on the with substrate surface provided with a primer be, or the binder, possibly the extender, and a Part of the amount of copper used as a homogeneous mixture with subcritical pigment volume concentration (PVC) on the Substrate are applied and only then further copper portions are applied, for example using a fine sieve-dust method, preferably until it is reached an almost dry surface and a supercritical PVC.
- the two-step process has the advantage of being a primer of the substrate is not necessary since the applied coating has a subcritical PVC. This will ensures good adhesion of the coating to the substrate. Since also in the area of the coating surface the copper content is extremely high (highly supercritical PVC), good and quick patination is possible.
- the layer thickness of the coating is in both cases about 100 to 150 microns.
- the upper copper parts of the coating either through atmospheric exposure over time patinate or it can be patinated with special patination aids, for example patination solutions.
- patination aids for example patination solutions.
- a particular advantage of the method according to the invention is that a light and quick patination in the Mechanical production is possible and therefore evenly patinated and thus optically enhanced articles be available.
- the application procedure according to the first Alternative is suitable for molded articles with strong structured surfaces.
- the application method according to the second alternative is suitable for the coating of flat substrates (roofing materials of all kinds) by machine.
- the ratio of the proportions of copper to the proportions of binder gives certain properties of the application medium in front. If the copper content is too high, the strength may decrease of the order, the copper content is too low, so may not have the desired copper appearance reached. In the method according to the invention, the Copper content only slightly below the critical one Pigment volume concentration.
- the copper components can be integrated in the binder, or, as already mentioned, in a two-stage process be applied. Subsequent application has additional Advantages. With the underground comes essentially only binder in contact, which is a particularly good bond strength guaranteed.
- the outer surface of the order will mainly formed by copper parts, so that the outer Appearance is particularly coppery and large proportions the surface of the copper parts of the oxidation for patina formation are exposed.
- PVK pigment volume concentration to a high degree
- the surface to be patinated is a supercritical one PVC to aim for quick copper reaction.
- binders come as binders into consideration, especially synthetic resin binders. It can basically be inorganic or organic solvent-free or solvent-based in order to be solvent-dilutable or water-dilutable binders. In particular, a suitable one can be used for a respective surface Binder can be selected.
- An extender can also be added to the binder. which is preferably well homogenized with the binder.
- Suitable binders are: setting agents Mortar and sulfates, so-called asbestos cements, sodium and potassium water glass, Organosilicates, polyurethanes, epoxy systems, Chlorinated rubber, oxidative drying resins, unsaturated polyesters, Thermoplastics, polyisocyanate, polyether polyol.
- Fillers or extenders can be considered, for example: Quartz flour, kaolin, talc, natural aluminum and magnesium silicate hydroxides.
- Binder epoxy resin reaction lacquer containing solvents - Reacts moisture-curing at low temperatures lK-PUR lacquer, solvent-based.
- Epoxy resin system solvent-based, cold curing.
- Araldit 6071 (Ciba-Geigy) 38.5 parts Xylene 6.0 parts Isobutyl methyl ketone 6.0 parts Ethanediol 1.0 parts Urea resin (Laromine, BASF) 2.0 parts Filler Extender "(quartz flour, barium sulfate, kaolin, aluminum and magnesium silicate hydroxides, etc.) 36.5 parts
- the maximum temperature is determined by the thermal Limited properties of the substrate.
- Binder Chlorinated rubber (Pergut S 20, 50% in toluene, Bayer) 70 parts
- Filler Extender " Quartz flour, kaolin, natural aluminum u. Magnesium silicate hydroxides 55 pieces Copper powder 55 pieces
- patination solutions The following substances can be considered as patination solutions:
- the above solution is used to create a blue-green patina.
Description
Die Erfindung betrifft ein Verfahren zur Veredelung des optischen Erscheinungsbildes der Oberfläche eines aus einem anderen Material als Kupfer bestehenden Gegenstandes, bei dem die Oberfläche des Gegenstandes mit einer Lage eines oxidationsfähige Kupferanteile enthaltenden Auftragsmittels versehen wird.The invention relates to a method for refining the optical Appearance of the surface one from another Material as copper existing object, in which the Surface of the object with a layer of an oxidizable Ordering agent containing copper components becomes.
Nach der US-A-42 47 589 ist ein Verfahren zur Herstellung dekorativer Artikel durch eine bindemittelfreie Applikation homogener Metalloxid- beziehungsweise Metallsalzpigmentfilme, vorzugsweise auf porösen oder saugfähigen Untergründen bekannt, mit dem Ziel, den optischen Eindruck eines Anstrichs zu vermeiden. Dieses bekannte Verfahren basiert darauf, daß extrem dünne Schichten des jeweiligen Metalls direkt auf dem Substrat partiell oxidiert oder korrodiert werden. Hierbei entstehen kurzfristig wasserlösliche Zwischenprodukte. Diese Zwischenprodukte dringen als Lösung in die Poren (auch von scheinbar glatten Oberflächen) des Untergrundes ein und setzen sich im Fortgang der Reaktion zu unlöslichen Folgeprodukten um, etwa vergleichbar mit Rostflecken bei Sanitärkeramik und Textilien. Nach dem Trocknen bildet sich ein extrem dünner homogener Film farbiger Korrosionsprodukte aus, die je nach Reaktionsstufe stark changieren können. Derartige Filme müssen zur Erhaltung der Farbstufe und mechanischen Festigkeit durch einen Schutzlack passiviert werden und sind für eine Außenanwendung, bei der sie der Witterung ausgesetzt würden, nicht geeignet.According to US-A-42 47 589 is a method for producing decorative Articles more homogeneous thanks to a binder-free application Metal oxide or metal salt pigment films, preferably known on porous or absorbent surfaces, with the aim of giving the visual impression of a coat of paint to avoid. This known method is based on the fact that extremely thin layers of the respective metal directly on the Substrate are partially oxidized or corroded. Here water-soluble intermediates are formed for a short time. This Intermediates penetrate the pores as a solution (also from apparently smooth surfaces) of the surface and form insoluble secondary products as the reaction proceeds um, comparable to rust stains on sanitary ware and textiles. After drying, an extreme forms thin homogeneous film of colored corrosion products, which can vary greatly depending on the reaction level. Such Films need to maintain color level and mechanical strength are and are passivated by a protective lacquer for an outdoor application where it is exposed to the weather would not be suitable.
Nach der JP-A-1-31981 ist eine Oberflächenbehandlung beziehungsweise Beschichtung von Gegenständen bekannt, die an sich bereits aus einem Kupfermaterial hergestellt sind. Diese Gegenstände erhalten eine oberflächliche Beschichtung, die bereits oxidierte Kupferbestandteile enthält. Hierdurch wird lediglich eine Voroxidation der Oberfläche eines Kupfermaterials erzielt. Das bekannte Verfahren ist an Gegenständen, die aus einem anderen Material als Kupfer bestehen, nicht anwendbar.According to JP-A-1-31981 is a surface treatment respectively Coating objects known per se are already made from a copper material. These items get a superficial coating that already contains oxidized copper components. This will only a pre-oxidation of the surface of a copper material achieved. The known method is on objects made of a material other than copper cannot be used.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren anzugeben, mit dem beliebige Oberflächen, insbesondere auch Bedachungsflächen aus modernen Materialien, das Aussehen einer Kupferfläche erhalten können, insbesondere einschließlich der Patinierungserscheinungen.The invention has for its object to provide a method with any surface, especially roofing areas made of modern materials, the look of a Can get copper surface, especially including the Signs of patination.
Die Aufgabe wird erfindungsgemäß gelöst durch ein Verfahren der eingangs genannten Gattung, welches sich dadurch auszeichnet, daß der Gegenstand unter Verwendung eines die Kupferanteile einbindenden Bindemittels eine aufgrund ihrer Dicke von 100 bis 150 Mikrometer der Witterung und deren Erosions- und Oxidationswirkungen aussetzbare Beschichtung erhält.The object is achieved according to the invention by a method of the type mentioned at the beginning, which is characterized by that the item using one of the copper parts binding binder due to their Thickness from 100 to 150 micrometers of the weather and its erosion and oxidation effects can be exposed to a coating.
Bei dem erfindungsgemäßen Verfahren wird somit mit Vorteil in einfacher Weise auf die Oberfläche eines beliebigen Gegenstandes, beispielsweise einer Bedachung, einer Fassaden- oder Wandverkleidung, einer Skulptur, eines Obelisks, einer Säule oder dergleichen ein Auftragsmittel aufgetragen, wobei beliebige herkömmliche Farbauftragungsmethoden angewandt werden können, also beispielsweise Streichen, Rollen, Spritzen und so weiter. Die zu behandelnde Oberfläche, das heißt der Untergrund, kann praktisch beliebig sein.In the method according to the invention, it is therefore advantageous in simply on the surface of any object, for example a roof, a facade or Wall covering, a sculpture, an obelisk, a column or the like applied an application medium, any conventional paint application methods are used can, for example painting, rolling, spraying and so on. The surface to be treated, i.e. the surface, can be practically arbitrary.
Das Auftragsmittel enthält Kupferanteile, die der Oxidation ausgesetzt sind, das heißt die eine Patina bilden, also Grünspan ansetzen, und zwar mit Vorteil eine ganz natürliche Patina, da es sich hier tatsächlich um Kupferanteile handelt. Die behandelte Oberfläche erhält daher ein völlig natürliches, einer normalen Kupferoberfläche entsprechendes Erscheinungsbild.The application medium contains copper components that cause oxidation exposed, that is, they form a patina, i.e. verdigris apply, and with advantage a completely natural patina, since this is actually copper. The treated surface therefore receives a completely natural, appearance corresponding to a normal copper surface.
Damit wird mit dem Auftragsmittel ein anderer Weg beschritten, als bei herkömmlichen Bronzeanstrichen, mit denen lediglich der entsprechende Metalleffekt nachgeahmt wird. Vielmehr wird mit dem Auftragsmittel in einfacher und kostengünstiger Weise eine Verkupferung erreicht, die ansonsten allenfalls durch eine umständliche und kostenaufwendige Elektrolyse möglich wäre, also ein Verfahren, das höchstens bei Skulpturen rentabel wäre.This means that a different path is taken with the order material, than with conventional bronze paints, with which only the corresponding metal effect is mimicked. Rather, using the application tool is easier and cheaper Way reached a copper plating that otherwise at most through a complicated and costly electrolysis would be possible Sculptures would be profitable.
Des weiteren hat das erfindungsgemäße Verfahren den Vorteil, daß als Unterbau funktionelle, kostengünstige Baumaterialien verwendet werden können, deren Aussehen keine Rolle spielt, da anschließend ohnehin eine Oberflächenveredelung erfolgt. Eine Erosion des Auftragsmittels von der Oberfläche würde nur zur Folge haben, daß eventuell an entsprechender Stelle der Auftrag nachgebessert werden muß, ohne daß dadurch der Unterbau in irgendeiner Weise beschädigt wird, so daß insbesondere eine Bedachung trotz einer Kupfererosion dicht und witterungsbeständig bleibt.Furthermore, the method according to the invention has the advantage that as a substructure functional, inexpensive building materials can be used whose appearance doesn't matter, because afterwards a surface finish takes place anyway. An erosion of the application agent from the surface would only have the consequence that the Order must be touched up without the substructure is damaged in any way, so in particular a roof is tight and weatherproof despite copper erosion remains.
Eine nächste Weiterbildung des erfindungsgemäßen Verfahrens sieht vor, daß ein Bindemittel des Auftragsmittels und die Kupferanteile auch in einem Zwei-Stufen-Vorgehen getrennt voneinander aufgetragen werden können. Zunächst kann das Bindemittel selbst aufgestrichen, aufgerollt oder in anderer Weise aufgetragen werden. Danach können die Kupferanteile aufgestäubt werden, beispielsweise über ein Feinsieb-Flugstaubverfahren, und zwar vorzugsweise bis zum Erreichen einer fast trockenen Oberfläche. Die Dicke der Bindemittelschicht kann beispielsweise 100 bis 150 Mikrometer betragen.Another development of the method according to the invention provides that a binder of the application agent and the Copper components also separated in a two-step process can be applied from each other. First of all, the binder even spread, rolled up or in another Way to be applied. Then the copper parts are dusted on, for example using a fine sieve-dust method, and preferably until one is reached almost dry surface. The thickness of the binder layer can be, for example, 100 to 150 microns.
Danach kann das Bindemittel ausgehärtet werden, beispielsweise heiß ausgehärtet werden, und gegebenenfalls anschließend abgekühlt werden. Danach können die überschüssigen Kupferanteile abgetragen werden, beispielsweise abgesaugt werden. Anschließend patinieren die Kupferanteile entweder durch die Witterung von selbst im Laufe der Zeit oder es kann auch eine Patinierung beschleunigt werden, indem eine spezielle Patinierungssubstanz, beispielsweise eine Patinierlösung, aufgetragen wird.The binder can then be cured, for example be cured hot, and if necessary subsequently be cooled. After that, the excess copper content be removed, for example suctioned off will. Then the copper parts either patinate through the weather by itself over time or it can Patination can also be accelerated by a special Patination substance, for example a patination solution, is applied.
Zudem besteht ein besonderer Vorteil des erfindungsgemäßen Verfahrens darin, daß die Kupferanteile auch mit Vorteil vorpatiniert werden können, so daß die verschönerte Oberfläche sofort eine relativ gleichmäßige Patinierung aufweist.There is also a particular advantage of the invention Process in that the copper portions also pre-patinated with advantage can be, so that the embellished surface immediately has a relatively even patination.
Insgesamt kann also entweder das Bindemittel, evtl. der Extender, und die gesamte Kupfermenge als homogenes Gemisch, mit überkritischer Pigment-Volumen-Konzentration auf die mit einem Haftgrund versehene Substratoberfläche appliziert werden, oder das Bindemittel, evtl. der Extender, und ein Teil der verwendeten Kupfermenge als homogenes Gemisch mit unterkritischer Pigment-Volumen-Konzentration (PVK) auf das Substrat appliziert werden und erst danach weitere Kupferanteile aufgebracht werden, beispielsweise über ein Feinsieb-Flugstaubverfahren, und zwar vorzugsweise bis zum Erreichen einer fast trockenen Oberfläche und einer überkritischen PVK.Overall, either the binder, possibly the extender, and the total amount of copper as a homogeneous mixture, with supercritical pigment volume concentration on the with substrate surface provided with a primer be, or the binder, possibly the extender, and a Part of the amount of copper used as a homogeneous mixture with subcritical pigment volume concentration (PVC) on the Substrate are applied and only then further copper portions are applied, for example using a fine sieve-dust method, preferably until it is reached an almost dry surface and a supercritical PVC.
Das Zwei-Stufen-Verfahren hat den Vorteil, daß eine Grundierung des Substrates nicht nötig ist, da die aufgebrachte Beschichtung eine unterkritische PVK aufweist. Hierdurch wird eine gute Haftung der Beschichtung auf dem Substrat gewährleistet. Da außerdem im Bereich der Beschichtungsoberfläche der Kupferanteil extrem hoch ist (stark überkritische PVK), ist eine gute und schnelle Patinierung möglich.The two-step process has the advantage of being a primer of the substrate is not necessary since the applied coating has a subcritical PVC. This will ensures good adhesion of the coating to the substrate. Since also in the area of the coating surface the copper content is extremely high (highly supercritical PVC), good and quick patination is possible.
Die Schichtstärke der Beschichtung beträgt in beiden Fällen etwa 100 bis 150 Mikrometer. The layer thickness of the coating is in both cases about 100 to 150 microns.
Nach dem Aushärten des Bindemittels (physikalisch trocknend, oxidativ, kalt oder heiß härtend) können evtl. überschüssige Kupferpartikel des Verfahrens der zweiten Alternative abgetragen werden, beispielsweise durch Absaugen, in den Prozeß zurückgeführt werden.After the binder has hardened (physically drying, oxidative, cold or hot curing) can possibly be excess Copper particles removed from the process of the second alternative be, for example by suction, in the process to be led back.
Anschließend können die oberen Kupferanteile der Beschichtung entweder durch atmosphärische Einwirkung im Laufe der Zeit patinieren oder es kann eine Patinierung durch spezielle Patinierhilfsmittel, beispielsweise Patinierlösungen, erfolgen. Ein besonderer Vorteil des erfindungsgemäßen Verfahrens besteht darin, daß eine leichte und schnelle Patinierung im Rahmen einer maschinellen Fertigung möglich ist und somit gleichmäßig patinierte und damit optisch aufgewertete Artikel zur Verfügung stehen. Das Applikationsverfahren gemäß erster Alternative eignet sich für Formkörper mit stark strukturierten Oberflächen.Then the upper copper parts of the coating either through atmospheric exposure over time patinate or it can be patinated with special patination aids, for example patination solutions. A particular advantage of the method according to the invention is that a light and quick patination in the Mechanical production is possible and therefore evenly patinated and thus optically enhanced articles be available. The application procedure according to the first Alternative is suitable for molded articles with strong structured surfaces.
Das Applikationsverfahren gemäß zweiter Alternative eignet sich für die Beschichtung flächiger Substrate (Bedachungsmaterialien aller Art) auf maschinellem Wege.The application method according to the second alternative is suitable for the coating of flat substrates (roofing materials of all kinds) by machine.
Das Anteilsverhältnis der Kupferanteile zu den Bindemittelanteilen gibt bestimmte Eigenschaften des Auftragsmittels vor. Ist der Kupferanteil zu hoch, so nimmt eventuell die Festigkeit des Auftrags ab, ist der Kupferanteil zu niedrig, so wird eventuell nicht das gewünschte Kupfererscheinungsbild erreicht. Bei dem erfindungsgemäßen Verfahren kann der Kupferanteil durchaus nur etwa knapp unterhalb der kritischen Pigment-Volumen-Konzentration liegen.The ratio of the proportions of copper to the proportions of binder gives certain properties of the application medium in front. If the copper content is too high, the strength may decrease of the order, the copper content is too low, so may not have the desired copper appearance reached. In the method according to the invention, the Copper content only slightly below the critical one Pigment volume concentration.
Die Kupferanteile können in das Bindemittel eingebunden sein, oder wie bereits erwähnt, im Zwei-Stufen-Verfahren nachträglich aufgetragen werden. Das nachträgliche Auftragen hat zusätzliche Vorteile. Mit dem Untergrund kommt im wesentlichen nur Bindemittel in Kontakt, was eine besonders gute Haftfestigkeit garantiert. Die Außenfläche des Auftrages wird hauptsächlich von Kupferanteilen gebildet, so daß das äußere Erscheinungsbild besonders kupfermäßig ist und große Anteile der Oberfläche der Kupferanteile der Oxidation zur Patinabildung ausgesetzt sind.The copper components can be integrated in the binder, or, as already mentioned, in a two-stage process be applied. Subsequent application has additional Advantages. With the underground comes essentially only binder in contact, which is a particularly good bond strength guaranteed. The outer surface of the order will mainly formed by copper parts, so that the outer Appearance is particularly coppery and large proportions the surface of the copper parts of the oxidation for patina formation are exposed.
Für die chemischen und mechanischen Eigenschaften der Beschichtung (Patinierbarkeit, Erosionsfestigkeit, Haftfestigkeit auf dem Substrat) ist in hohem Maße die Pigment-Volumen-Konzentration (PVK) in den einzelnen Zonen der Beschichtung verantwortlich. Im Grenzbereich Substratoberfläche-Beschichtung ist eine unterkritische PVK, für eine gute Haftung, an der zu patinierenden Oberfläche jedoch eine überkritische PVK, zur schnellen Reaktion des Kupfers anzustreben.For the chemical and mechanical properties of the coating (Patinability, erosion resistance, adhesive strength on the substrate) is the pigment volume concentration to a high degree (PVK) in the individual zones of the coating responsible. In the border area substrate surface coating is a subcritical PVC, for good adhesion the surface to be patinated is a supercritical one PVC to aim for quick copper reaction.
Als Bindemittel kommen verschiedenste, handelsübliche Bindemittel in Betracht, insbesondere Kunstharz-Bindemittel. Es kann sich grundsätzlich um anorganische oder organische, um lösungsmittelfreie oder lösungsmittelhaltige, um lösungsmittelverdünnbare oder wasserverdünnbare Bindemittel handeln. Insbesondere kann zu einem jeweiligen Untergrund ein geeignetes Bindemittel gewählt werden.A wide variety of commercially available binders come as binders into consideration, especially synthetic resin binders. It can basically be inorganic or organic solvent-free or solvent-based in order to be solvent-dilutable or water-dilutable binders. In particular, a suitable one can be used for a respective surface Binder can be selected.
Dem Bindemittel kann zudem ein Extender hinzugefügt werden, der mit dem Bindemittel vorzugsweise gut homogenisiert ist.An extender can also be added to the binder. which is preferably well homogenized with the binder.
Als Bindemittel kommen beispielsweise in Betracht: Abbindende Mörtel und Sulfate, sog. Asbestzemente, Natrium und Kalium-Wasserglas, Organosilikate, Polyurethane, Epoxid-Systeme, Chlorkautschuk, oxidativ trocknende Harze, ungesättigte Polyester, Thermoplaste, Polyisocyanat, Polyetherpolyol. Als Füllmittel oder Extender kommen beispielsweise in Betracht: Quarzmehl, Kaolin, Talk, natürliche Aluminium- und Magnesiumsilikathydroxide. Examples of suitable binders are: setting agents Mortar and sulfates, so-called asbestos cements, sodium and potassium water glass, Organosilicates, polyurethanes, epoxy systems, Chlorinated rubber, oxidative drying resins, unsaturated polyesters, Thermoplastics, polyisocyanate, polyether polyol. As Fillers or extenders can be considered, for example: Quartz flour, kaolin, talc, natural aluminum and magnesium silicate hydroxides.
Im Nachfolgenden werden für bestimmte Einsatzzwecke beispielhaft Rezepturen und Arbeitsgänge genannt:The following are examples for certain purposes Recipes and operations called:
Durch die Anwendung lösemittelhaltiger Bindemittel wird eine leichte Anlösung der Substratoberfläche erreicht. Hier bildet sich eine Mischzone Bindemittel-Bitumen aus, die eine gute Verklammerung des Bindemittels auf dem Substrat bedingt.Through the use of solvent-based binders, a slight dissolution of the substrate surface achieved. Here forms a binder-bitumen mixing zone, which is a good one Clinging of the binder to the substrate is conditional.
Epoxidharz-System, lösemittelhaltig, kalt härtend.Epoxy resin system, solvent-based, cold curing.
- Harz/Härter-MischungsverhältnisResin / hardener mixing ratio
- 4,5 : 14.5: 1
- Desmodur E -lösemittelhaltig (Bayer)Desmodur E - contains solvents (Bayer)
- 50 Teile50 parts
-
Füllmittel
- 40 Teile40 parts
- - siehe Vorrezeptur -- see pre-recipe -
Für die Beschichtung gewellter Substratoberflächen kann eine
Thixotropierung beider Systeme mittels
Bindemittel auf die Substratoberfläche auftragen (Rollen, Spritzen), Schichtstärke 100 - 150 µm.Apply binder to the substrate surface (rolls, Spraying), layer thickness 100 - 150 µm.
Auftrag des Kupferpulvers über Feinsiebe - Flugstaubverfahren
bis zum Erreichen einer fast trockenen Oberfläche.
Im Bereich der Oberfläche liegt eine deutlich überkritische
PVK (Pigment-Volumen-Konzentration) vor - guter Reaktionsgrund
für die Patinierlösung -,
während im Grenzbereich Substrat-Beschichtung sowohl eine unterkritische
PVK als eine Mischphase Bindemittel-Bitumen vorliegt. Application of the copper powder over fine screens - flying dust process until an almost dry surface is reached.
In the area of the surface there is a clearly supercritical PVC (pigment volume concentration) - good reason for the patination solution -,
while in the substrate coating border area there is both a subcritical PVC and a mixed phase of binder-bitumen.
Härtung bei Raumtemperatur oder leicht erhöhten Temperaturen bis ca. 60 °C. Die maximale Temperatur wird durch die thermischen Eigenschaften des Substrates begrenzt.Hardening at room temperature or slightly elevated temperatures up to approx. 60 ° C. The maximum temperature is determined by the thermal Limited properties of the substrate.
Absaugen - und Rückführung - eventuell nicht eingebundenen Kupfers.Suction - and return - possibly not integrated Copper.
Bei Bedarf durch Zugabe von Xylol auf Streichkonsistenz einstellen.Adjust for spreading consistency if necessary by adding xylene.
Objekt im Bedarfsfall reinigen und trocknen. Clean and dry the object if necessary.
Auftrag einer 30 - 50 µm starken Grundierung auf Basis eines Chlorkautschuklackes mit unterkritischer PVK zur Verbesserung der Haftfestigkeit.Apply a 30 - 50 µm thick primer based on a Chlorinated rubber lacquer with subcritical PVC for improvement the adhesive strength.
Trocknen der Grundierung (Abdampfen des Lösemittels).Drying the primer (evaporating the solvent).
Auftrag der Deckbeschichtung in einer Stärke von 100 - 150 µm, an exponierten Stellen gegebenenfalls auch stärker.Apply the top coat in a thickness of 100 - 150 µm, possibly more at exposed points.
Trocknen der Beschichtung (Abdampfen des Lösemittels).Drying the coating (evaporation of the solvent).
Auftrag der Patinierlösung.
Dieser Vorgang ist je nach gewünschtem Patinierungsgrad zu
wiederholen.Application of the patination solution.
This process must be repeated depending on the degree of patination desired.
Die o.a. Lösung dient zur Erzeugung einer blau-grünen Patina.
Diese Lösung liefert dunkelgrüne (Pompejanisches Grün) Patina.
Diese Lösung bringt bei abwechselnder Applikation mit Wasserstoffperoxid intensive helle Grünfärbung.This solution brings with alternating application with hydrogen peroxide intense bright green color.
Claims (9)
- A process for enhancing the visual appearance of the surface of an object comprising a material other than copper, wherein the surface of the object is provided with a layer of a coating agent containing oxidisable copper constituents, characterised in that, by using a binder binding the copper constituents, the object is provided with a coating which is exposable to atmospheric conditions, owing to its thickness of 100 to 150 micrometres, and to the erosion and oxidation effects thereof.
- A process according to claim 1, characterised in that the copper constituents are pre-oxidised before the coating agent is applied to the surface in order to achieve patina-green coloration.
- A process according to claim 1 or 2, characterised in that a binder is first applied to the surface and then the surface of the binder is dusted with the copper constituents.
- A process according to claim 3, characterised in that the binder, provided with a proportion of the total copper quantity and, optionally, extenders, is first applied to the surface of the substrate and then the coating surface is dusted with copper so that a supercritical pigment volume concentration (PVC) is achieved, or the coating system as such with an already supercritical pigment volume concentration (PVC) is applied to the substrate provided with an adhesive base.
- A process according to claim 3 or 4, characterised in that the binder is then hardened.
- A process according to claim 5, characterised in that a heat-hardening binder is used which is cooled after hardening.
- A process according to any one of claims 3 to 6, characterised in that non-bound copper constituents are removed, preferably sucked off.
- A process according to any one of the preceding claims, characterised in that the copper constituents are patinated.
- A process according to claim 2 or 8, characterised in that a patinating substance, preferably a patinating solution, is used for patination.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4142596 | 1991-12-21 | ||
| DE4142596 | 1991-12-21 | ||
| DE4202779 | 1992-01-31 | ||
| DE4202779A DE4202779A1 (en) | 1991-12-21 | 1992-01-31 | METHOD AND MEANS FOR FINISHING THE OPTICAL APPEARANCE OF A SURFACE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0548784A1 EP0548784A1 (en) | 1993-06-30 |
| EP0548784B1 true EP0548784B1 (en) | 1999-03-31 |
Family
ID=25910449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92121438A Expired - Lifetime EP0548784B1 (en) | 1991-12-21 | 1992-12-17 | Process for enhancing the appearance of a surface |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5344671A (en) |
| EP (1) | EP0548784B1 (en) |
| JP (1) | JPH06128510A (en) |
| DE (2) | DE4202779A1 (en) |
| DK (1) | DK0548784T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005059421A1 (en) * | 2005-12-07 | 2007-06-14 | Susan Krieger | Producing a patina on textiles, e.g. for decorative wall coverings, involves covering parts of the surface with wax, applying oxidising agent all over, screen printing with metal-pigmented ink and oxidising again |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19539158A1 (en) * | 1995-10-20 | 1997-04-24 | Km Europa Metal Ag | Process for stabilizing a patina layer |
| FI100398B (en) * | 1996-08-15 | 1997-11-28 | Pertti Juhani Kukkonen | Method for coloring concrete and other cementitious binder-based mixtures |
| DE19718459A1 (en) * | 1997-04-30 | 1998-11-05 | Chemische Ind Erlangen Gmbh | Cheap opaque pigment useful in paint, especially corrosion-inhibiting paint |
| DE19809904A1 (en) * | 1998-03-07 | 1999-09-09 | Km Europa Metal Ag | Process and reaction solution to create a patina |
| DE19935500A1 (en) * | 1999-07-28 | 2001-02-01 | Martin Kloeber | Antifouling coating composition comprises binder and copper particles where part of surface of copper particles is exposed to atmosphere after binder has cured, useful for e.g. roofs |
| JP4583728B2 (en) * | 2003-06-04 | 2010-11-17 | 株式会社中川ケミカル | Decorative sheet |
| US10119038B2 (en) | 2015-05-08 | 2018-11-06 | PatinaNow, LLC | Patina solution, method for producing patina on object, and patina kit |
| WO2018140388A1 (en) * | 2017-01-26 | 2018-08-02 | Composecure, Llc | Patinated or patina-ready metal transaction cards and manufacturing processes |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4247589A (en) * | 1977-12-16 | 1981-01-27 | Greenspan Donald J | Decorative oxidation process and article |
| JPS568894A (en) * | 1979-07-05 | 1981-01-29 | Fujikura Ltd | Conductive paste for printed circuit board and printed circuit board using same |
| DE3635369A1 (en) * | 1986-10-17 | 1988-04-28 | Degussa | METHOD FOR COATING SURFACES WITH HARD MATERIALS |
| US5059485A (en) * | 1988-06-08 | 1991-10-22 | Akzo America Inc. | Conductive metallization of substances without developing agents |
-
1992
- 1992-01-31 DE DE4202779A patent/DE4202779A1/en not_active Ceased
- 1992-12-17 US US07/992,076 patent/US5344671A/en not_active Expired - Fee Related
- 1992-12-17 EP EP92121438A patent/EP0548784B1/en not_active Expired - Lifetime
- 1992-12-17 DE DE59209672T patent/DE59209672D1/en not_active Expired - Fee Related
- 1992-12-17 DK DK92121438T patent/DK0548784T3/en active
- 1992-12-21 JP JP4340187A patent/JPH06128510A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005059421A1 (en) * | 2005-12-07 | 2007-06-14 | Susan Krieger | Producing a patina on textiles, e.g. for decorative wall coverings, involves covering parts of the surface with wax, applying oxidising agent all over, screen printing with metal-pigmented ink and oxidising again |
| DE102005059421B4 (en) * | 2005-12-07 | 2007-12-20 | Susan Krieger | Process for producing patina on textile surfaces of fabrics consisting of artificial or natural fibers |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59209672D1 (en) | 1999-05-06 |
| DK0548784T3 (en) | 1999-10-11 |
| JPH06128510A (en) | 1994-05-10 |
| DE4202779A1 (en) | 1993-06-24 |
| US5344671A (en) | 1994-09-06 |
| EP0548784A1 (en) | 1993-06-30 |
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