FR2752689A1 - Material for use in jewellery, watch-making and similar work - Google Patents
Material for use in jewellery, watch-making and similar work Download PDFInfo
- Publication number
- FR2752689A1 FR2752689A1 FR9610987A FR9610987A FR2752689A1 FR 2752689 A1 FR2752689 A1 FR 2752689A1 FR 9610987 A FR9610987 A FR 9610987A FR 9610987 A FR9610987 A FR 9610987A FR 2752689 A1 FR2752689 A1 FR 2752689A1
- Authority
- FR
- France
- Prior art keywords
- platinum
- layer
- jewelry
- silver
- plating
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 26
- 239000002245 particle Substances 0.000 claims abstract description 6
- 239000010432 diamond Substances 0.000 claims abstract description 4
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 4
- 150000004767 nitrides Chemical class 0.000 claims abstract description 4
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 3
- 238000007747 plating Methods 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000005034 decoration Methods 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 229910001111 Fine metal Inorganic materials 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 abstract description 9
- 239000004332 silver Substances 0.000 abstract description 9
- 239000010938 white gold Substances 0.000 abstract description 4
- 229910000832 white gold Inorganic materials 0.000 abstract description 4
- 239000010970 precious metal Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 8
- 238000000151 deposition Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052703 rhodium Inorganic materials 0.000 description 3
- 239000010948 rhodium Substances 0.000 description 3
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 239000010437 gem Substances 0.000 description 2
- 229910001751 gemstone Inorganic materials 0.000 description 2
- 239000002932 luster Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Classifications
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
- C23C28/023—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only
-
- 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
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D15/00—Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires
- C25D15/02—Combined electrolytic and electrophoretic processes with charged materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Electrochemistry (AREA)
- Adornments (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
Description
PIECE D'ORFEVRERIE, DE BITOUTERIE, DE TOAILLERIE,
D'HORLOGERIE, DE DECORATION OU ANALOGUE
Domaine technique
L'invention se rattache au domaine de l'orfévrerie, la bijouterie ou l'horlogerie. Elle vise plus précisément la fabrication d'objets en métal précieux à base d'argent ou d'or blanc et présentant un placage en platine.PIECE OF SILVERWOOD, BITOUTERY, FABRIC,
CLOCK, DECORATION OR THE LIKE
Technical area
The invention relates to the field of goldsmithery, jewelry or watchmaking. It more specifically aims at the manufacture of precious metal objects based on silver or white gold and having a platinum plating.
Elle consiste plus précisément en l'utilisation de poudres submicronales incorporées dans la couche de platine.It consists more precisely in the use of submicron powders incorporated in the platinum layer.
Techniques antérieures
La réalisation de pièces d'orfévrerie ou de bijoux réalisés à base d'argent ou d'or blanc plaqué en platine est connue depuis de nombreux siècles.Previous techniques
The production of silverware or jewelry made from silver or white gold plated in platinum has been known for many centuries.
Ainsi, ces pièces présentent un éclat caractéristique très recherché. Thus, these parts have a highly sought-after characteristic luster.
Or, compte-tenu des techniques de fabrications existantes, les couches de placage de tels bijoux sont d'une épaisseur extrêmement réduite. En effet, les couches de platine actuellement obtenues sont très fines et très tendues et par conséquent perméables et relativement cassantes.However, given the existing manufacturing techniques, the plating layers of such jewelry are of extremely reduced thickness. Indeed, the platinum layers currently obtained are very thin and very taut and therefore permeable and relatively brittle.
Or, on sait que dans le cas où le plaquage de platine est réalisé sur un bijou à base d'argent, la perméabilité de la couche de plaquage permet l'oxydation et la sulfuration de l'argent. Cela se traduit par une dégradation des qualités superficielles du bijou, et l'apparition de tâches de sulfuration de l'argent particulièrement inesthétiques. However, it is known that in the case where the platinum plating is carried out on a silver-based jewel, the permeability of the plating layer allows the oxidation and the sulfurization of the silver. This results in a degradation of the surface qualities of the jewel, and the appearance of particularly unsightly silver sulphurization spots.
Par ailleurs, il est également connu de recouvrir les bijoux à base d'argent d'une couche de rhodium qui protège l'argent d'une oxydation en formant une barrière vis-à-vis de l'air ambiant. Or, si le rhodium est très résistant et confère aux bijoux ainsi obtenus une bonne tenue aux chocs, en revanche son éclat est relativement médiocre. Furthermore, it is also known to cover silver-based jewelry with a layer of rhodium which protects silver from oxidation by forming a barrier against ambient air. However, if the rhodium is very resistant and gives the jewelry thus obtained a good impact resistance, on the other hand its luster is relatively poor.
Le problème que se propose donc de résoudre l'invention est celui du dépôt de couches de platine plus épaisses que celles existantes, compatibles avec les critères de coûts inhérents au prix de la matière première. The problem which the invention therefore proposes to solve is that of depositing platinum layers thicker than those existing, compatible with the cost criteria inherent in the price of the raw material.
Exposé de l'invention
L'invention concerne donc une pièce d'orfévrerie, de bijouterie, de joaillerie, d'horlogerie, de décoration ou analogue, comportant une couche supérieure en métal fin et une couche de plaquage en platine.Statement of the invention
The invention therefore relates to a piece of goldsmith's work, of jewelery, of fine jewelery, of clocks, of decoration or the like, comprising an upper layer of fine metal and a layer of platinum plating.
Cette pièce se caractérise en ce que la couche de plaquage en platine comprend en outre un ajout de particules submicronales. This part is characterized in that the platinum plating layer further comprises an addition of submicron particles.
Autrement dit, l'invention consiste à incorporer dans le platine de plaquage des particules de dimensions de l'ordre du micron. De façon surprenante, ceci permet d'augmenter notablement l'épaisseur de la couche de plaquage en platine. Ainsi, typiquement, les couches de plaquage en platine pur sont de l'ordre du micron, tandis que les couches de platine conformes à l'invention peuvent atteindre 2,5 à 5 microns. In other words, the invention consists in incorporating into the plating plate particles with dimensions of the order of a micron. Surprisingly, this makes it possible to significantly increase the thickness of the platinum plating layer. Thus, typically, the platinum plating layers are of the order of a micron, while the platinum layers according to the invention can reach 2.5 to 5 microns.
En pratique, les particules submicronales sont en un matériau choisi dans le groupe comprenant entre autres: la silice, le carbure de tungstène, le carbure de nitrure, le diamant et le polytétrafluoroéthylène. In practice, the submicron particles are made of a material chosen from the group comprising inter alia: silica, tungsten carbide, nitride carbide, diamond and polytetrafluoroethylene.
Ainsi, en fonction de la poudre utilisée, on peut modifier les caractéristiques intrinsèques du platine en termes de dureté, de coloris et de résistance à l'abrasion. Thus, depending on the powder used, the intrinsic characteristics of the platinum can be modified in terms of hardness, color and resistance to abrasion.
Manières de réaliser l'invention
Comme déjà dit, l'invention concerne les objets utilisés en orfévrerie, en bijouterie, en joaillerie et voire en horlogerie. n peut donc s'agir de bijoux, de montres ou d'articles de métal précieux de type très divers.Ways to realize the invention
As already said, the invention relates to objects used in goldsmithery, in jewelry, in jewelry and even in watchmaking. It can therefore be jewelry, watches or precious metal items of very different types.
Les couches de plaquage conformes à l'invention peuvent être appliquées sur divers métaux, tels que principalement l'argent et l'or blanc. The plating layers according to the invention can be applied to various metals, such as mainly silver and white gold.
Ainsi, pour réaliser un bijou conforme à l'invention, on procède sur l'objet de base, issu par exemple de fonderie, au dépôt d'une couche caractéristique de platine. Ce dépôt peut s'obtenir par un procédé physique, chimique ou électrolytique, connu en soi, qui ne sera donc pas détaillé ci-après en détail. Thus, to produce a piece of jewelry in accordance with the invention, the basic object, for example from foundry, is applied to the deposition of a characteristic layer of platinum. This deposition can be obtained by a physical, chemical or electrolytic process, known per se, which will therefore not be detailed below in detail.
Conformément à une caractéristique essentielle de l'invention, le platine utilisé pour réaliser la couche barrière et l'éventuelle couche de placage contient des particules de poudre submicronales. Ainsi, lors de la préparation du platine avant son dépôt, on y incorpore certaines poudres permettant de modifier les caractéristiques mécaniques ou esthétiques du platine. In accordance with an essential characteristic of the invention, the platinum used to make the barrier layer and the possible plating layer contains particles of submicron powder. Thus, during the preparation of the platinum before its deposition, certain powders are incorporated therein making it possible to modify the mechanical or aesthetic characteristics of the platinum.
Ainsi, si l'on souhaite augmenter la dureté de la couche de platine, on choisit une poudre de diamant, ou de métal dur comme par exemple le carbure de tungstène ou de carbure de nitrure. Thus, if it is desired to increase the hardness of the platinum layer, a diamond powder, or a hard metal powder such as, for example, tungsten carbide or nitride carbide, is chosen.
Par ailleurs, si l'on souhaite augmenter la résistance de la couche de placage à l'usure, aux frottements et aux glissements, on choisit d'incorporer une poudre de matières thermoplastiques comme par exemple du polytétrafluorure d'éthylène commercialisé sous la marque déposée TEFLON. On peut également incorporer des poudres telles que la silice permettant d'obtenir des effets de couleur particulièrement esthétiques. Furthermore, if it is desired to increase the resistance of the plating layer to wear, to friction and to slipping, it is chosen to incorporate a powder of thermoplastic materials such as, for example, polyethylene tetrafluoride marketed under the registered trademark. TEFLON. It is also possible to incorporate powders such as silica, making it possible to obtain particularly aesthetic color effects.
Conformément à une caractéristique importante de l'invention, la couche de plaquage en platine présente de préférence une épaisseur comprise entre 2,5 à 3,5 microns. Bien entendu, l'invention couvre également les réalisations dans lesquelles l'épaisseur de platine sera comprise entre 1 et 4 voire 5 microns. According to an important characteristic of the invention, the platinum plating layer preferably has a thickness of between 2.5 to 3.5 microns. Of course, the invention also covers embodiments in which the thickness of platinum will be between 1 and 4 or even 5 microns.
Il est important de noter que l'épaisseur de la couche de platine caractéristique de l'invention est nettement supérieure aux épaisseurs de couches de platine utilisée en placage traditionnellement, qui sont typiquement de l'ordre du micron. It is important to note that the thickness of the platinum layer characteristic of the invention is significantly greater than the thicknesses of platinum layers used in traditional plating, which are typically of the order of a micron.
Ainsi, les articles d'orfévrerie ou de bijouterie conformes à l'invention présentent de nombreux avantages par rapport aux bijoux équivalents réalisés antérieurement. En ce qui concerne les propriétés mécaniques, on peut citer une augmentation de la résistance aux chocs et aux frottements. Sur le point de vue esthétique, on obtient des articles présentant un éclat et des coloris supérieurs à ceux obtenus notamment grâce au placage de rhodium. Thus, the articles of goldsmithery or jewelry in accordance with the invention have many advantages compared to equivalent jewelry made previously. As regards the mechanical properties, there may be mentioned an increase in impact and friction resistance. From an aesthetic point of view, articles are obtained having a brightness and colors superior to those obtained in particular by virtue of the plating of rhodium.
Claims (3)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9610987A FR2752689B1 (en) | 1996-09-04 | 1996-09-04 | PIECE OF SILVERWARE, JEWELERY, JEWELERY, WATCHMAKING, DECORATION OR THE LIKE |
| EP98420038A EP0940098A1 (en) | 1996-09-04 | 1998-03-03 | Jewellery piece, watch, decoration or the like |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9610987A FR2752689B1 (en) | 1996-09-04 | 1996-09-04 | PIECE OF SILVERWARE, JEWELERY, JEWELERY, WATCHMAKING, DECORATION OR THE LIKE |
| EP98420038A EP0940098A1 (en) | 1996-09-04 | 1998-03-03 | Jewellery piece, watch, decoration or the like |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2752689A1 true FR2752689A1 (en) | 1998-03-06 |
| FR2752689B1 FR2752689B1 (en) | 1998-10-23 |
Family
ID=26151776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9610987A Expired - Fee Related FR2752689B1 (en) | 1996-09-04 | 1996-09-04 | PIECE OF SILVERWARE, JEWELERY, JEWELERY, WATCHMAKING, DECORATION OR THE LIKE |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0940098A1 (en) |
| FR (1) | FR2752689B1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7604726B2 (en) * | 2004-01-07 | 2009-10-20 | Honeywell International Inc. | Platinum aluminide coating and method thereof |
| WO2017143048A1 (en) * | 2016-02-16 | 2017-08-24 | Xtalic Corporation | Articles including nickel-free coating and methods |
| CH713746A1 (en) * | 2017-04-28 | 2018-10-31 | Montblanc Montre Sa | Method of depositing a gold coating on an article and article obtained by this method |
| CN111588151A (en) * | 2020-05-15 | 2020-08-28 | 东吴黄金集团有限公司 | Gold-coated silver ornament and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2042943A (en) * | 1979-02-20 | 1980-10-01 | Gibbons K T | Composite Material of Precious Metals |
| US4533605A (en) * | 1980-09-09 | 1985-08-06 | Westinghouse Electric Corp. | Article such as jewelry or a wristwatch component having composite multi-film protective coating |
| US4745035A (en) * | 1985-11-04 | 1988-05-17 | Asulab S.A. | Article having a wear resisting precious metal coating |
| EP0274239A1 (en) * | 1986-12-12 | 1988-07-13 | Johnson Matthey Public Limited Company | Scratch resistant platinum article |
| US4944985A (en) * | 1988-04-11 | 1990-07-31 | Leach & Garner | Method for electroless plating of ultrafine or colloidal particles and products produced thereby |
| US5529680A (en) * | 1990-06-29 | 1996-06-25 | Electroplating Engineers Of Japan, Limited | Platinum electroforming and platinum electroplating |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4477538A (en) * | 1981-02-17 | 1984-10-16 | The United States Of America As Represented By The Secretary Of The Navy | Platinum underlayers and overlayers for coatings |
| US4931152A (en) * | 1984-11-19 | 1990-06-05 | Avco Corporation | Method for imparting erosion-resistance to metallic substrate |
| US4917967A (en) * | 1989-01-13 | 1990-04-17 | Avon Products, Inc. | Multiple-layered article and method of making same |
-
1996
- 1996-09-04 FR FR9610987A patent/FR2752689B1/en not_active Expired - Fee Related
-
1998
- 1998-03-03 EP EP98420038A patent/EP0940098A1/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2042943A (en) * | 1979-02-20 | 1980-10-01 | Gibbons K T | Composite Material of Precious Metals |
| US4533605A (en) * | 1980-09-09 | 1985-08-06 | Westinghouse Electric Corp. | Article such as jewelry or a wristwatch component having composite multi-film protective coating |
| US4745035A (en) * | 1985-11-04 | 1988-05-17 | Asulab S.A. | Article having a wear resisting precious metal coating |
| EP0274239A1 (en) * | 1986-12-12 | 1988-07-13 | Johnson Matthey Public Limited Company | Scratch resistant platinum article |
| US4944985A (en) * | 1988-04-11 | 1990-07-31 | Leach & Garner | Method for electroless plating of ultrafine or colloidal particles and products produced thereby |
| US5529680A (en) * | 1990-06-29 | 1996-06-25 | Electroplating Engineers Of Japan, Limited | Platinum electroforming and platinum electroplating |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2752689B1 (en) | 1998-10-23 |
| EP0940098A1 (en) | 1999-09-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |