EP0287746A1 - A method for producing a decorative surface structure with holographic or diffraction pattern - Google Patents
A method for producing a decorative surface structure with holographic or diffraction pattern Download PDFInfo
- Publication number
- EP0287746A1 EP0287746A1 EP87810255A EP87810255A EP0287746A1 EP 0287746 A1 EP0287746 A1 EP 0287746A1 EP 87810255 A EP87810255 A EP 87810255A EP 87810255 A EP87810255 A EP 87810255A EP 0287746 A1 EP0287746 A1 EP 0287746A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- decorative
- casting
- surface structure
- master model
- holographic
- 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
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B45/00—Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
- G04B45/0084—Pictures or inscriptions on the case or parts thereof, attaching complete pictures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C3/00—Processes, not specifically provided for elsewhere, for producing ornamental structures
- B44C3/04—Modelling plastic materials, e.g. clay
- B44C3/042—Modelling plastic materials, e.g. clay producing a copy from an original structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44F—SPECIAL DESIGNS OR PICTURES
- B44F1/00—Designs or pictures characterised by special or unusual light effects
- B44F1/08—Designs or pictures characterised by special or unusual light effects characterised by colour effects
- B44F1/14—Iridescent effects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44F—SPECIAL DESIGNS OR PICTURES
- B44F7/00—Designs imitating three-dimensional effects
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
- C25D1/10—Moulds; Masks; Masterforms
Definitions
- watch faces can be produced by traditional methods of printing and engraving onto plane surfaces. It is also known that enhancement of such a product can be obtained by the application of special coatings - for example gold - by galvanic or vacuum deposition.
- items such as a watch face can be produced by an electroforming process whereby a master model of the watch face is made - commonly in metal -, plastic copies of this master are produced by a process such as casting, and subsequent electroformed metal copies are made from the plastic intermediate.
- This electroforming process allows considerable product enhancement because relief information (for example raised numerals) can be incorporated into the master model, and are thus also copied onto the subsequent electroform.
- embossed hologram and a multiplicity of decorative diffraction foils use the presence of a micro-relief structure on a surface to create a surface enhancement which is based on optical diffraction and not on the properties of coloured inks, pigments etc.
- embossed surfaces may be further enhanced by the application of a thin metal layer (for example vacuum coated aluminium).
- Products such as the embossed hologram and diffraction foil are available in todays marketplace in the form of thin plastic foils which have been embossed using a suitably made embossing master carrying the diffractive information as a surface relief structure.
- This object is attained, according to the invention, by combining the electroforming process used to manufacture a watch face as described above, with the presence over all or part of the required surface of holographic or diffractive patterns in the form of micro relief structures.
- a holographic or diffractive relief pattern is formed in a metal surface whereby this step may itself involve producing an electroformed copy of a holographic or diffractive relief pattern recorded using laser technology on a photosensitive surface.
- this metal relief pattern are then incorporated into a master model of the finally required watch face.
- this master model will also include non-holographic or non-diffractive areas and elements to provide macroscopic relief effects and surface texturing, and utilitarian features such as apertures for the date wheel and driving axles for the hands.
- holographic or diffractive elements may be incorporated into different areas of the same watch face.
- Castings in a polymer system are produced of the master model surface.
- These castings are coated with a suitable electrically conducting layer, preferentially less than 100 nm, and then in a suitable holder, are electroformed to provide replicas of the original master model surface. It is convenient and economic to use copper as the electroforming metal.
- the electroformed watch faces are then finished by applying a further decorative layer to the replica surface, for example of gold in a thin layer of less than 100 nm and various metal finishing operations such as stamping to the final size and machining the rear suface if necessary.
- a further decorative layer for example of gold in a thin layer of less than 100 nm and various metal finishing operations such as stamping to the final size and machining the rear suface if necessary.
- the invention described here is not limited to watch faces, but includes metal surfaces where an enhancement is required.
- the technology described here provides a security feature which can protect the surface of an object into which such a surface is intimately combined, against simulation by conventional printing or engraving methods.
- the technology can be applied to costume jewelry to provide product enhancement, to medals and coin-like items where the inclusion of holographic or diffractive surface elements can provide both enhancement and proof of authenticity, and to general metal objects which can be produced using an electroforming technique and which can be enhanced by the inclusion of holographic and diffractive effects.
Abstract
Description
- For many products it is desirable to enhance a surface by means of printing, engraving or mechanical machining to achieve a decorative or utilitarian effect. As an example of such an enhanced surface we here consider a watch face.
- It is known that watch faces can be produced by traditional methods of printing and engraving onto plane surfaces. It is also known that enhancement of such a product can be obtained by the application of special coatings - for example gold - by galvanic or vacuum deposition.
- It is further known that items such as a watch face can be produced by an electroforming process whereby a master model of the watch face is made - commonly in metal -, plastic copies of this master are produced by a process such as casting, and subsequent electroformed metal copies are made from the plastic intermediate. This electroforming process allows considerable product enhancement because relief information (for example raised numerals) can be incorporated into the master model, and are thus also copied onto the subsequent electroform.
- It is also known that decorative effect and surface enhancement can be achieved by means of certain types of hologram and diffractive pattern. The so-called embossed hologram, and a multiplicity of decorative diffraction foils use the presence of a micro-relief structure on a surface to create a surface enhancement which is based on optical diffraction and not on the properties of coloured inks, pigments etc. Such embossed surfaces may be further enhanced by the application of a thin metal layer (for example vacuum coated aluminium). Products such as the embossed hologram and diffraction foil are available in todays marketplace in the form of thin plastic foils which have been embossed using a suitably made embossing master carrying the diffractive information as a surface relief structure.
- It is the object of the present invention to improve the quality and the range of the decoration of surfaces.
- This object is attained, according to the invention, by combining the electroforming process used to manufacture a watch face as described above, with the presence over all or part of the required surface of holographic or diffractive patterns in the form of micro relief structures.
- A method will be described below by way of an example for producing decorated surfaces.
- First, a holographic or diffractive relief pattern is formed in a metal surface whereby this step may itself involve producing an electroformed copy of a holographic or diffractive relief pattern recorded using laser technology on a photosensitive surface.
- All or parts of this metal relief pattern are then incorporated into a master model of the finally required watch face. In general, this master model will also include non-holographic or non-diffractive areas and elements to provide macroscopic relief effects and surface texturing, and utilitarian features such as apertures for the date wheel and driving axles for the hands. Several different holographic or diffractive elements may be incorporated into different areas of the same watch face.
- Castings in a polymer system are produced of the master model surface.
- These castings are coated with a suitable electrically conducting layer, preferentially less than 100 nm, and then in a suitable holder, are electroformed to provide replicas of the original master model surface. It is convenient and economic to use copper as the electroforming metal.
- The electroformed watch faces are then finished by applying a further decorative layer to the replica surface, for example of gold in a thin layer of less than 100 nm and various metal finishing operations such as stamping to the final size and machining the rear suface if necessary.
- The resultant watch face being made of metal is inherently very stable and the final quality depends essentially upon the care and precision which was exercised in the origination of the initial master model. Only one master model is required for the production of large numbers of identical replicas.
- It is of course also possible to use the result of the casting process, a polymer replica of the master model surface, directly as the enhanced surface in the final product. If this course is adopted then the master model must be constructed to be the "negative" of the desired final surface. A suitable decorative finish can then be applied to the surface of the polymer casting, for example a vacuum evaporated gold layer, and final operations such as stamping to size or trimming can be performed. Again, a series of replicas can be made from a single model, but the final result will be less stable both mechanically and thermally than the metal version described above. This polymer variation of the product is also included within the spirit of this invention.
- The invention described here is not limited to watch faces, but includes metal surfaces where an enhancement is required. As an additional feature the technology described here provides a security feature which can protect the surface of an object into which such a surface is intimately combined, against simulation by conventional printing or engraving methods.
- The technology can be applied to costume jewelry to provide product enhancement, to medals and coin-like items where the inclusion of holographic or diffractive surface elements can provide both enhancement and proof of authenticity, and to general metal objects which can be produced using an electroforming technique and which can be enhanced by the inclusion of holographic and diffractive effects.
Claims (8)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19870810255 EP0287746B1 (en) | 1987-04-22 | 1987-04-22 | A method for producing a decorative surface structure with holographic or diffraction pattern |
DE8787810255T DE3765776D1 (en) | 1987-04-22 | 1987-04-22 | METHOD FOR PRODUCING A DECORATIVE SURFACE STRUCTURE WITH A HOLOGRAM OR A DIFFUSION PATTERN. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19870810255 EP0287746B1 (en) | 1987-04-22 | 1987-04-22 | A method for producing a decorative surface structure with holographic or diffraction pattern |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0287746A1 true EP0287746A1 (en) | 1988-10-26 |
EP0287746B1 EP0287746B1 (en) | 1990-10-24 |
Family
ID=8198399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19870810255 Expired - Lifetime EP0287746B1 (en) | 1987-04-22 | 1987-04-22 | A method for producing a decorative surface structure with holographic or diffraction pattern |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0287746B1 (en) |
DE (1) | DE3765776D1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0484974A1 (en) * | 1990-11-09 | 1992-05-13 | Luis Remba | A method of making artistic prints (II) |
WO1992022226A1 (en) * | 1991-06-13 | 1992-12-23 | Australian Gem Exchange Pty. Ltd. | Simulated objects |
DE4323554A1 (en) * | 1993-07-14 | 1995-01-19 | Reinert Udo Dipl Ing | Process for producing redundant holographic information stores for the rotative reconstruction of the holograms and their projection on sheet-like image sensors |
ES2159477A1 (en) * | 1999-08-17 | 2001-10-01 | Montana Exposito Vicenta De | Metal coating of eg. sports shoes for decoration purposes consists of application of eg. gold by electrolysis after covering the shoe with a conductive metal and varnish mixture |
DE4211235C2 (en) * | 1992-04-03 | 2003-04-17 | Gao Ges Automation Org | Method and device for producing metallic surface elements on substrates and their use |
CH697447B1 (en) * | 2003-12-23 | 2008-10-15 | 3D Ag | Substrate's i.e. embossing matrix, surface structure producing method for e.g. manufacturing decorative pattern, involves applying surface reliefs, and forming impression of substrate before formation of production unit |
US20170130353A1 (en) * | 2015-11-11 | 2017-05-11 | Nivarox-Far S.A. | Method for fabrication of a metal component with at least one optical illusion design |
EP3181006A1 (en) * | 2015-12-18 | 2017-06-21 | The Swatch Group Research and Development Ltd. | Zirconia panel element with selective colouring |
EP3181007A1 (en) * | 2015-12-18 | 2017-06-21 | The Swatch Group Research and Development Ltd. | Zirconia panel element with selectively conductive areas for electronic applications |
EP3266905A1 (en) | 2016-07-04 | 2018-01-10 | Richemont International S.A. | Method for manufacturing a timepiece component |
JP2020011282A (en) * | 2018-07-20 | 2020-01-23 | アサダメッシュ株式会社 | Decorative sheet, and manufacturing method thereof |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2086223A1 (en) * | 1970-04-21 | 1971-12-31 | Patek Philippe Sa | |
US3867264A (en) * | 1973-03-30 | 1975-02-18 | Bell & Howell Co | Electroforming process |
CH601500A5 (en) * | 1975-04-25 | 1978-07-14 | Liss Sa | Decorative metal parts and jewellery |
US4184700A (en) * | 1975-11-17 | 1980-01-22 | Lgz Landis & Gyr Zug Ag | Documents embossed with optical markings representing genuineness information |
EP0175460A1 (en) * | 1984-08-08 | 1986-03-26 | Dr. Johannes Heidenhain GmbH | Manufacture of diffraction gratings |
-
1987
- 1987-04-22 EP EP19870810255 patent/EP0287746B1/en not_active Expired - Lifetime
- 1987-04-22 DE DE8787810255T patent/DE3765776D1/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2086223A1 (en) * | 1970-04-21 | 1971-12-31 | Patek Philippe Sa | |
US3867264A (en) * | 1973-03-30 | 1975-02-18 | Bell & Howell Co | Electroforming process |
CH601500A5 (en) * | 1975-04-25 | 1978-07-14 | Liss Sa | Decorative metal parts and jewellery |
US4184700A (en) * | 1975-11-17 | 1980-01-22 | Lgz Landis & Gyr Zug Ag | Documents embossed with optical markings representing genuineness information |
EP0175460A1 (en) * | 1984-08-08 | 1986-03-26 | Dr. Johannes Heidenhain GmbH | Manufacture of diffraction gratings |
Non-Patent Citations (1)
Title |
---|
XEROX DISCLOSURE JOURNAL, vol. 7, no. 6, November/December 1982, pages 379-380; C.J. KRAMER: "Replication of diffraction gratings by embossing techniques" * |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0484974A1 (en) * | 1990-11-09 | 1992-05-13 | Luis Remba | A method of making artistic prints (II) |
WO1992022226A1 (en) * | 1991-06-13 | 1992-12-23 | Australian Gem Exchange Pty. Ltd. | Simulated objects |
US5599594A (en) * | 1991-06-13 | 1997-02-04 | Australian Gem Exchange Pty. Ltd. | Simulated objects |
DE4211235C2 (en) * | 1992-04-03 | 2003-04-17 | Gao Ges Automation Org | Method and device for producing metallic surface elements on substrates and their use |
DE4323554A1 (en) * | 1993-07-14 | 1995-01-19 | Reinert Udo Dipl Ing | Process for producing redundant holographic information stores for the rotative reconstruction of the holograms and their projection on sheet-like image sensors |
ES2159477A1 (en) * | 1999-08-17 | 2001-10-01 | Montana Exposito Vicenta De | Metal coating of eg. sports shoes for decoration purposes consists of application of eg. gold by electrolysis after covering the shoe with a conductive metal and varnish mixture |
CH697447B1 (en) * | 2003-12-23 | 2008-10-15 | 3D Ag | Substrate's i.e. embossing matrix, surface structure producing method for e.g. manufacturing decorative pattern, involves applying surface reliefs, and forming impression of substrate before formation of production unit |
KR20170055428A (en) * | 2015-11-11 | 2017-05-19 | 니바록스-파 에스.에이. | Method for fabrication of a metal-based component with at least one optical illusion pattern |
EP3168057A1 (en) * | 2015-11-11 | 2017-05-17 | Nivarox-FAR S.A. | Method for manufacturing a metal part with at least one optical illusion pattern |
EP3168058A1 (en) * | 2015-11-11 | 2017-05-17 | Nivarox-FAR S.A. | Method for manufacturing a metal part with at least one optical illusion pattern |
US20170130353A1 (en) * | 2015-11-11 | 2017-05-11 | Nivarox-Far S.A. | Method for fabrication of a metal component with at least one optical illusion design |
JP2017089008A (en) * | 2015-11-11 | 2017-05-25 | ニヴァロックス−ファー ソシエテ アノニム | Method for fabrication of metal-based component with at least one optical illusion design |
US11866837B2 (en) | 2015-11-11 | 2024-01-09 | Nivarox-Far S.A. | Method for fabrication of a metal component with at least one optical illusion design |
WO2017102239A3 (en) * | 2015-12-18 | 2017-09-14 | The Swatch Group Research And Development Ltd | External part made of zirconia with selective colouring |
EP3181007A1 (en) * | 2015-12-18 | 2017-06-21 | The Swatch Group Research and Development Ltd. | Zirconia panel element with selectively conductive areas for electronic applications |
WO2017102399A3 (en) * | 2015-12-18 | 2018-03-01 | The Swatch Group Research And Development Ltd | External part made of zirconia with selectively conductive regions for electronic functions |
CN108471851A (en) * | 2015-12-18 | 2018-08-31 | 斯沃奇集团研究和开发有限公司 | The outer member in the selective conductivity region for electric function is made and had of zirconium oxide |
US11144012B2 (en) | 2015-12-18 | 2021-10-12 | The Swatch Group Research And Development Ltd | Zirconia covering element with selective coloring |
US11467540B2 (en) | 2015-12-18 | 2022-10-11 | The Swatch Group Research And Development Ltd | External element made of zirconia with selectively conductive zones for electronic applications |
EP3181006A1 (en) * | 2015-12-18 | 2017-06-21 | The Swatch Group Research and Development Ltd. | Zirconia panel element with selective colouring |
EP3266905A1 (en) | 2016-07-04 | 2018-01-10 | Richemont International S.A. | Method for manufacturing a timepiece component |
JP2020011282A (en) * | 2018-07-20 | 2020-01-23 | アサダメッシュ株式会社 | Decorative sheet, and manufacturing method thereof |
Also Published As
Publication number | Publication date |
---|---|
EP0287746B1 (en) | 1990-10-24 |
DE3765776D1 (en) | 1990-11-29 |
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