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WO2017005285A1 - Monture pour pierre décorative, pourvue d'un revêtement d'or à aspect ancien - Google Patents

Monture pour pierre décorative, pourvue d'un revêtement d'or à aspect ancien Download PDF

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Publication number
WO2017005285A1
WO2017005285A1 PCT/EP2015/065271 EP2015065271W WO2017005285A1 WO 2017005285 A1 WO2017005285 A1 WO 2017005285A1 EP 2015065271 W EP2015065271 W EP 2015065271W WO 2017005285 A1 WO2017005285 A1 WO 2017005285A1
Authority
WO
WIPO (PCT)
Prior art keywords
gemstone
layer
gold
copper
socket
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.)
Ceased
Application number
PCT/EP2015/065271
Other languages
German (de)
English (en)
Inventor
Martin Rauch
Christoph TRIENDL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
D Swarovski KG
Original Assignee
D Swarovski KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by D Swarovski KG filed Critical D Swarovski KG
Priority to PCT/EP2015/065271 priority Critical patent/WO2017005285A1/fr
Publication of WO2017005285A1 publication Critical patent/WO2017005285A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/02—Electroplating of selected surface areas
    • C25D5/022—Electroplating of selected surface areas using masking means
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
    • C23C22/52—Treatment of copper or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/82—After-treatment
    • C23C22/83—Chemical after-treatment
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/10—Electroplating with more than one layer of the same or of different metals
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/48—After-treatment of electroplated surfaces
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/005—Jewels; Clockworks; Coins
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C27/00—Making jewellery or other personal adornments
    • A44C27/001—Materials for manufacturing jewellery
    • A44C27/005—Coating layers for jewellery
    • A44C27/006—Metallic coatings
    • 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
    • B05D2203/00—Other substrates
    • B05D2203/30—Other inorganic substrates, e.g. ceramics, silicon
    • 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
    • B05D2350/00—Pretreatment of the substrate
    • B05D2350/60—Adding a layer before coating
    • B05D2350/65—Adding a layer before coating metal layer
    • 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
    • B05D5/067—Metallic effect

Definitions

  • the invention relates to a method for producing an artificial "antique gold coating" on a blank of a gemstone socket, as well as the products which are produced by this method.
  • a jewelery base is often made of a low-cost material, for example brass, a copper-zinc alloy or pure zinc. These materials are easy to coat.
  • the gemstone bezel is gold plated and is not entirely gold because the gold coating is more cost effective.
  • US 2009/0139264 A1 describes the production of an antique gold effect for jewelery. Signs are engraved on the jewelry surface and the jewelry weathers only during use. Object of the present invention is to realize an artificial "antique gold coating" on a gemstone setting, which is also friendly to the skin, does not react with sweat, has good adhesion and protects against mechanical erosion, such as scratches.
  • metal parts for example electroless processes in solution or electrolytic processes, or also processes such as physical vapor deposition (PVD) or chemical vapor deposition (CVD).
  • PVD physical vapor deposition
  • CVD chemical vapor deposition
  • a thin metal layer is deposited on the surface of a material to be coated. All of these methods are suitable in principle according to the invention.
  • the electrolytic processes are electrochemical depositions of metal layers on surfaces to be coated.
  • conductive materials such as conductive metals, conductive metal alloys or conductive plastics.
  • the material to be coated is immersed in a solution of the coating material. By applying an external current, the coating material deposits on the material to be coated.
  • Electroless coating processes in solution, such as reductive, occur without the use of an external power source.
  • Such a metal deposition with the addition of reducing agents to the electrolyte is based on the oxidation of the reducing agent with release of electrons, which lead to a reduction of the metal ions.
  • the inventive method allows for jewelry in terms of aesthetics and design very many design options.
  • the "anti-gold coating” can be applied in principle to any electrically conductive material, for example brass or electrically conductive plastics
  • jewelery in which the gemstone mount is made of brass or a brass-containing alloy, since brass is made Brass is well coated and mechanically well machined Brass and all other metals and alloys mentioned herein are used in the purity known to those skilled
  • a gemstone socket is to be copper plated, it is advantageous to use a cyanide copper electrolyte first
  • the resulting, mostly thin layer of copper is then reinforced with an acidic copper electrolyte.
  • the pre-coppering is necessary because it is not possible due to the low pH of an acidic copper electrolyte t directly coat zinc die castings. The zinc would dissolve.
  • brass jewel casings can be directly coated with an acidic copper electrolyte.
  • At least one metal layer is deposited electrolytically on the gemstone casing.
  • a copper layer is deposited on the gemstone socket, since copper is cheaper than gold and better adheres to brass.
  • a copper layer thickness of 1 to 10 ⁇ is applied, in particular 5 to 10 ⁇ and particularly preferably from 7 to 9 ⁇ .
  • a palladium layer is preferably deposited on the copper layer.
  • Palladium forms a barrier layer that prevents the diffusion of copper into the subsequently deposited gold layer.
  • Various processes are known to the person skilled in the art for the deposition of the palladium-containing layer, and the deposition of this layer is preferably carried out by electrolysis. Electrolytically, a palladium layer of 0.1 to 10 ⁇ m is preferably applied, in particular 0.1 to 5 ⁇ m, and particularly preferably 0.2 to 0.3 ⁇ m.
  • palladium is deposited together with at least one other metal, wherein the content of palladium based on the weight of the deposited layer at least 50 wt .-%, preferably at least 60 wt .-% and more preferably at least 70 wt .-% is.
  • the gold layer is preferably deposited on the palladium layer according to the invention.
  • the processes for the gold separation are well known to the person skilled in the art; Gold separation by electrolysis. Electrolytically, a gold layer of 0.1 to 10 ⁇ m is preferably applied, in particular 0.1 to 5 ⁇ m and particularly preferably 0.3 to 0.4 ⁇ m. For the purposes of the invention, it is also conceivable that gold is deposited in various degrees of purity. In order to obtain the characteristic appearance of the gold, a minimum gold content of the layer of 58.5% by weight is advantageous; a minimum gold content of 75% by weight is more advantageous according to the invention.
  • the layer sequence preferably contains a combination of copper with a layer thickness of 7 to 9 ⁇ , palladium with a layer thickness of 0.2 to 0.3 ⁇ and gold with a layer thickness of 0.3 to 0.4 ⁇ .
  • a partial masking is applied to the gilt gemstone setting.
  • the masking serves to leave areas of the gold surface free in order to process them for the desired aging effect. If the masked gemstone socket is subsequently electrolytically coated again, the masking must not be electrically conductive.
  • a stripping lacquer is preferably used for the masking. Peel-off coatings have the advantage that they can be applied to the material like a protective skin and then removed again without residue. Particularly preferred for the masking PVC Abziehlacke be used. Peel-off properties, such as adhesiveness, can be altered by monomeric and polymeric plasticizers. To apply the Abziehlackes there are a variety of ways, for example, there is the possibility of spraying or liquid application.
  • the methods are well known to those skilled in the art. However, it is also possible to use other lacquers or general materials as masks, which can be applied as a mask and removed without leaving any residue, and which can be used in the subsequent electrolysis.
  • the masking is preferably applied according to the invention with a stencil.
  • the template can be made of a variety of materials, such as plastic, metal or textile. The template releases those areas that are to be further processed, the others remain covered.
  • step c) of the method a copper layer is deposited on the masked gemstone mount according to the invention.
  • the deposition is preferably carried out electrolytically. By masking the copper is deposited only at the left of the masking bodies.
  • the copper-plated and masked gemstone casing is treated with an oxidizing agent.
  • Potassium permanganate is preferably used as the oxidizing agent.
  • the Schmucksteinlansung is immersed, for example, in an aqueous potassium permanganate solution or sprayed with an aqueous potassium permanganate solution.
  • the uncovered coppered areas react with the oxidizing agent and are thereby discolored brownish.
  • a protective lacquer is applied to the gemstone casing.
  • the protective varnish prevents the metal parts from reacting with the sweat of the skin and also improves the resistance of the metal layers.
  • varnish is understood as meaning a liquid or pulverulent coating material which is applied thinly to objects and is built up by chemical or physical processes, for example evaporation of the solvent, to form a continuous, solid layer. Paints often contain binders, fillers, pigments, solvents, resins and / or acrylates and additives, such as biocides. Suitable examples are acrylic lacquers, epoxy lacquers or polyurethane lacquers.
  • Acrylic paints are manufactured on the basis of acrylic resins.
  • Acrylic resins are synthetic resins and are considered particularly durable.
  • Acrylic resins are based on polymers or copolymers of acrylic acid or methacrylic acid and their esters. They are often copolymerized with other unsaturated monomers, such as styrene or acrylonitrile.
  • Acrylic paints are either dissolved in solvents or dispersed in water and applied to the coated gemstone mount.
  • Acrylic coatings have a high weather resistance and are UV-resistant and are therefore particularly well suited according to the invention.
  • Epoxy paints often contain the two components epoxy resin and hardener.
  • Epoxy resins are polyadducts of epichlorohydrin with bisphenol derivatives, for example A, F or S. These are crosslinked with a hardener.
  • the two components epoxy resin and hardener are mixed shortly before processing.
  • Epoxy coatings are characterized by high chemical and mechanical resistance, but are not optimal in terms of UV resistance.
  • the urethane group is characteristic. They are commercially available as one-component and multicomponent coatings, for example the hardener is already mixed with the base coat in the case of one-component lacquer and the hardener and base coat are separated in the two-component lacquer.
  • Polyurethane coatings are particularly hard, abrasion resistant and resistant to water, oils and chemicals.
  • a polyurethane varnish is preferably used as the protective varnish.
  • Polyurethane paints have good adhesion properties and are resistant.
  • Two-component polyurethane acrylic resin paints have proven to be advantageous, in particular the products DE 4259x from Hesse and Lignal, since they are saliva and sweat resistant according to DIN 53160. They can be applied without thermal aftertreatment and are lightfast.
  • the gemstone socket can be cleaned or degreased before applying the metal layer.
  • Degreasing is the removal of adhering fats, oils or other contaminants with degreasing agents.
  • the cleaning or degreasing of, for example, brass has the advantage that the adhesion of the metal layer a) is improved.
  • the cleaning can be done mechanically, for example by grinding and polishing, with solvents, for example ethyl acetate, or else with ultrasound, for example with the Evolution WP-K device from German Sonic.
  • Another option for pretreatment is electrolytic degreasing.
  • the gemstone socket is in a solution and is then cleaned by applying a current.
  • electrolytic degreasing a distinction is made between cathodic and anodic degreasing.
  • the cathodic degreasing proceeds under hydrogen evolution and the anodic degreasing under evolution of oxygen.
  • the cathodic degreasing is preferably used because it can be achieved with brass, for example, a very good cleaning. For degreasing of brass parts is especially the cathodic, alkaline electrolytic degreasing.
  • the brass surface may optionally be treated with acid to remove oxide layers.
  • Sulfuric acid has proven to be advantageous for the cleaning of brass jewel casings.
  • the surface of the gemstone mount from example brass can be optionally roughened before applying the metal layer a).
  • the gemstone socket thus receives a surface that corresponds to a surface caused by weathering and aging.
  • the brass is preferably dipped in nitric acid.
  • the optional cleaning or degreasing and the optional roughening of the surface of the gemstone setting can be done in any order.
  • Another object of the application are products which are obtainable by the process according to the invention.
  • the preferred embodiments of the process lead to inventively preferred products.
  • the gemstone socket is optionally cleaned or degreased.
  • degreasing of brass parts is especially the cathodic, alkaline electrolytic degreasing.
  • the solution contains, for example, caustic soda and surfactants.
  • the degreasing is carried out for a period of at least 1 minute, a temperature of 35 ⁇ - 55 ⁇ and a current density of at least 3 A / dm 2, for example with the 1018 agent IWG-Plating Vienna.
  • the brass is immersed in nitric acid (about 55 to 65% by weight) for at least 20 seconds.
  • the gemstone socket is electrolytically coated with copper in step a) of the method.
  • the electrolyte used can be, for example, Cupracid® 210 from Atotech.
  • a layer thickness of 7 to 9 ⁇ is particularly preferably applied.
  • a palladium layer is electrolytically applied particularly preferably with a layer thickness of 0.2 to 0.3 ⁇ .
  • the product Gapal TS from IWG can be used for the palladium coating.
  • the gold layer is preferably applied electrolytically with a layer thickness of 0.3-0.4 ⁇ .
  • the product MC 210 from IWG is suitable.
  • a masking is partially applied to the gold-plated gemstone socket.
  • a stencil is preferably used.
  • peelable coatings for example Redowax 1 12 from Erne or Galvanolack GC 1 10 from Adhesive Products, are suitable on account of their adhesion properties.
  • the gem stone version is dried.
  • step c) of the process the gold-plated and masked gemstone casing is electrolytically coated with copper (about 2 to 3 ⁇ ). The copper is deposited on the vacant areas of the mask.
  • the copper-plated gemstone casing is aftertreated with an oxidizing agent by immersing it in a potassium permanganate solution (about 10 to 15% by weight) at a solution temperature of about 70 ° to 90 ° for at least 20 seconds.
  • the copper layer is discolored by the reaction with the oxidizing agent.
  • the masking has gold-plated areas and areas of oxidized copper.
  • step e) of the process the masking is removed with a solvent, for example ethyl acetate.
  • a protective lacquer is applied to the gemstone casing in order, for example, to prevent the reaction of skin sweat with the gemstone casing.
  • a protective varnish acrylic varnish, epoxy varnish, for example Duralit® 1516-754 S from Rohm and Haas or also polyurethane varnish can be used.
  • FIG. 1 Inventive example
  • the gemstone frame made of the FRMSBR alloy from AGS Alpha Guss Metals and Alloys GmbH Pforzheim was degreased electrolytically with the agent 1018 from IWG-Plating Wien for 5 minutes at a temperature of 45 ° and a current density of 5 A / dm 2 . Thereafter, the degreased brass parts were washed with deionized water.
  • the brass jewelry frame was immersed for about 1 minute in a 10% sulfuric acid (wt .-%). Thereafter, the gemstone socket was washed again with deionized water.
  • the gemstone socket was immersed in nitric acid (60% by weight) for about 30 seconds.
  • the brass jewel case was dipped wet in a copper bath and coated in the copper bath Cupracid® 210 from Atotech at 25 ⁇ , a current density of 1, 5 A / dm 2 and a duration of 8 minutes with a copper layer.
  • a palladium coating was applied electrolytically with Gapal TS from IWG at 25, a current density of 1 A / dm 2 and a duration of 2 minutes.
  • a gold coating was applied electrolytically with MC 210 from IWG at 45 °, a current density of 1 A / dm 2 and a duration of 2 minutes.
  • the masking with the Redowax 1 12 stripping paint from Erne was partially applied to the gold-plated gemstone setting using a stencil.
  • the gemstone socket was dried and then coated in the bright copper bath Cupracid® 210 from Atotech at 25, a current density of 1, 5 A / dm 2 and a duration of 2 minutes with a copper layer.
  • the copper-plated gemstone socket was thawed for approximately 30 seconds in a 10% potassium permanganate solution (wt%) with about 8CC.
  • the stripping lacquer was removed with the solvent ethyl acetate.
  • the gemstone socket was coated with the protective coating by being dipped in the two-component polyurethane-acrylic resin paint DE 42597-0040 from Hesse & Lignal and dried at about 25 ° C. for a period of about 14 hours.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'une couche d'or à aspect ancien obtenu artificiellement sur une monture pourvue d'un revêtement, pour une pierre décorative. Ladite couche d'or à aspect ancien se caractérise par un aspect qui correspond au processus de vieillissement naturel. La présente invention concerne également des produits fabriqués selon ledit procédé.
PCT/EP2015/065271 2015-07-05 2015-07-05 Monture pour pierre décorative, pourvue d'un revêtement d'or à aspect ancien Ceased WO2017005285A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/065271 WO2017005285A1 (fr) 2015-07-05 2015-07-05 Monture pour pierre décorative, pourvue d'un revêtement d'or à aspect ancien

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/065271 WO2017005285A1 (fr) 2015-07-05 2015-07-05 Monture pour pierre décorative, pourvue d'un revêtement d'or à aspect ancien

Publications (1)

Publication Number Publication Date
WO2017005285A1 true WO2017005285A1 (fr) 2017-01-12

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112135544A (zh) * 2018-05-18 2020-12-25 D.施华洛世奇两合公司 制造诸如珠宝饰件的装饰制品的方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167444A (en) * 1984-11-22 1986-05-29 Risis Private Limited Electroforming
EP0267563A2 (fr) * 1986-11-14 1988-05-18 Vianova Kunstharz Aktiengesellschaft Procédé de préparation de liants à base d'acrylates pour peintures déposables à la cathode et leur utilisation
DE10208674A1 (de) * 2002-02-28 2003-09-04 Bia Kunststoff Und Galvanotech Verfahren zur Herstellung galvanisch beschichteter Elemente mit hinterleuchtbaren Symbolen
US7018677B2 (en) 2003-07-17 2006-03-28 Crown-Pn L.L.C. Simulated patina for copper
US20090139264A1 (en) 2007-11-30 2009-06-04 Rachel Brown Antique jewelry articles and methods of making same
DE202008002080U1 (de) * 2008-02-15 2009-07-02 Eckardt, Markus Mokume-Schichtblock und daraus hergestelltes Schmuckstück, Ziergegenstand oder Verzierung
US8956510B2 (en) 2011-06-03 2015-02-17 Frederick Goldman, Inc. Coated metallic products and methods for making the same

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167444A (en) * 1984-11-22 1986-05-29 Risis Private Limited Electroforming
EP0267563A2 (fr) * 1986-11-14 1988-05-18 Vianova Kunstharz Aktiengesellschaft Procédé de préparation de liants à base d'acrylates pour peintures déposables à la cathode et leur utilisation
DE10208674A1 (de) * 2002-02-28 2003-09-04 Bia Kunststoff Und Galvanotech Verfahren zur Herstellung galvanisch beschichteter Elemente mit hinterleuchtbaren Symbolen
US7018677B2 (en) 2003-07-17 2006-03-28 Crown-Pn L.L.C. Simulated patina for copper
US8007866B2 (en) 2003-07-17 2011-08-30 BFS Diversified Products Company, LLC Simulated patina for copper
US20090139264A1 (en) 2007-11-30 2009-06-04 Rachel Brown Antique jewelry articles and methods of making same
DE202008002080U1 (de) * 2008-02-15 2009-07-02 Eckardt, Markus Mokume-Schichtblock und daraus hergestelltes Schmuckstück, Ziergegenstand oder Verzierung
US8956510B2 (en) 2011-06-03 2015-02-17 Frederick Goldman, Inc. Coated metallic products and methods for making the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112135544A (zh) * 2018-05-18 2020-12-25 D.施华洛世奇两合公司 制造诸如珠宝饰件的装饰制品的方法
US11821069B2 (en) 2018-05-18 2023-11-21 D. Swarovski Kg Method of making a decorative article, such as a jewellery piece

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