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EP0406667B1 - Méthode de formation d'une couche à dessins - Google Patents

Méthode de formation d'une couche à dessins Download PDF

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Publication number
EP0406667B1
EP0406667B1 EP90112121A EP90112121A EP0406667B1 EP 0406667 B1 EP0406667 B1 EP 0406667B1 EP 90112121 A EP90112121 A EP 90112121A EP 90112121 A EP90112121 A EP 90112121A EP 0406667 B1 EP0406667 B1 EP 0406667B1
Authority
EP
European Patent Office
Prior art keywords
magnetic
module
substrate
pattern
elements
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
Application number
EP90112121A
Other languages
German (de)
English (en)
Other versions
EP0406667A1 (fr
Inventor
Takahiko Hamada
Gorou Nagao
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.)
Nippon Paint Co Ltd
Original Assignee
Nippon Paint Co Ltd
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
Priority claimed from JP1164807A external-priority patent/JPH0330876A/ja
Priority claimed from JP33103989A external-priority patent/JP2844232B2/ja
Application filed by Nippon Paint Co Ltd filed Critical Nippon Paint Co Ltd
Publication of EP0406667A1 publication Critical patent/EP0406667A1/fr
Application granted granted Critical
Publication of EP0406667B1 publication Critical patent/EP0406667B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/20—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by magnetic fields
    • B05D3/203—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by magnetic fields pre-treatment by magnetic fields
    • 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
    • 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
    • B05D5/061—Special surface effect
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
    • H01F41/16—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates the magnetic material being applied in the form of particles, e.g. by serigraphy, to form thick magnetic films or precursors therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]

Definitions

  • This invention relates to a forming method of patterned coating upon miscellaneous surfaces, especially a method for illustrating various letters, characters, or figures upon a coated surface in a different tone of configuration from adjacent areas.
  • Japanese Patent Public Disclosure No. 175670/1988 there is disclosed a forming method of patterned coating utilizing a magnetic force.
  • a liquid coating material containing powdery magnetic materials such as nickel, stainless steel or iron
  • a magnet is brought near.
  • the powdery magnetic materials which are uniformly dispersed within the liquid coating material, move along magnetic force lines within the coating film, thereby producing a configuration pattern different from adjacent areas.
  • Japanese Patent Public Disclosure No. 10376/1982 there is disclosed a manufacturing method of metallic plate having a patterned coating. According to this method, at first a liquid paint containing an iron oxide is coated upon a metallic plate. Then, a magnetic pole is brought near the coated film, so that a pattern corresponding to the magnetic pole appears upon the film. And then, a baking treatment is applied to the coated film to finish the coated layer.
  • Another object of the present invention is to overcome the above drawbacks of the conventional forming method and to provide an explicit pattern within a coating film object utilizing a magnetic force. Another object of the present invention is to provide a forming method capable of illustrating miscellaneous patterns without being restricted by the shape of the magnet itself.
  • a single magnetic plate has been so magnetized that its flat surface exhibits spaced apart parallel lines extending right across the plate in one direction only and of N polarity with a single line line of S polarity between each adjacent pair of lines of N polarity.
  • this plate is used to create a patterned coating on a surface, only a pattern of spaced apart parallel lines is produced.
  • this first embodiment cannot be used for producing a continuous visible pattern illustrating, for example, a letter, character or figure.
  • a pattern is shown that is said to have resulted from the use of a six pole ring magnet, the pattern showing a ring-shaped area divided into six spaced apart portions.
  • two very long magnets are placed in spaced apart parallel array and between these there are arranged two rows of other magnets, said rows being parallel to the long magnets.
  • Each of said rows comprises short magnets interspersed with round magnets.
  • Another object of the present invention is to overcome the above drawbacks of the conventional forming methods and to provide an explicit pattern within a coating film object utilizing magnetic forces. Another object of the present invention is to provide a forming method capable of illustrating miscellaneous patterns without being restricted by the shape of the magnet itself.
  • a method of forming a visible patterned coating upon a surface of a non-magnetizable substrate includes the steps of: preparing a plurality of separate magnetic elements composed within an arrayed module of the elements with the poles of each magnet disposed in a common plane parallel to the substrate with each pole of each magnetic element being closely disposed to an opposite pole of an adjacent magnetic element, bringing said module in close vicinity to a reverse side of a non-magnetizable substrate, appplying a layer of a magnetic paint containing a powdery magnetic material upon the surface of said substrate opposite the reverse side of the substrate to make a wet film thereon, whereby, due to the magnetic field of the module the visible patterned coating is formed in the layer of the magnetic paint due to movement of the powdery magnetic material in response to the magnetic force lines of separated magnetic elements in the module, which visible patterned coating differs in tone from adjacent areas in the layer of magnetic paint, and hardening the wet film through a baking or drying, thereby providing
  • a method of forming a visible patterned coating upon a surface of a non-magnetizable substrate includes the steps of: preparing a plurality of separate magnetic elements composed within an arrayed module of the elements with the poles of each magnet disposed in a common plane parallel to the substrate with each pole of each magnetic element being closely disposed to an opposite pole of an adjacent magnetic element, applying a layer of magnetic paint containing a powdery magnetic material upon a surface of a non-magnetizable substrate to make a wet film thereon, bringing said module toward the surface or reverse side of said coated substrate in close vicinity of said wet film while the wet film retains its fluidity, whereby, due to the magnetic field of the module, the visible patterned coating is formed in the layer of the magnetic paint due to movement of the powdery magnetic material in response to the magnetic force lines of separated magnetic elements in the module, which visible patterned coating differs in tone from adjacent areas in the layer of magnetic paint, and hardening the wet film through a baking
  • an imaginary chain of magnetic force lines is formed along the module of the elements, and then a substrate is introduced into the magnetic field and exposed to the magnetic power.
  • magnetic paint containing powdery magnetic material is sprayed to the surface of the substrate, magnetic fine particles instantly begins to move within the wet film toward the direction of the magnetic force lines.
  • the movements of the magnetic material slow down and terminate near the magnetic force lines.
  • an explicit continuous pattern corresponding to the configuration pattern of the module appears in a hardened film.
  • the appearence of the pattern is not always identical with the configuration pattern of the magnetic chain, since magnetic force lines vary depending upon the directions of the magnetic elements, especially upon the positions of North magnetic poles and South magnetic poles carried on the elements. It should be appreciated that a delicate pattern can be illustrated in the hardened film by changing the direction of each magnetic element.
  • a metallic magnet ferrite magnet, sintered magnet or flexible magnet may be used depending upon the shape or magnetic properties.
  • these magnetic elements are formed through a moulding process into a relatively small piece having a rectangular, triangular, polygonal or circular configuration.
  • any pattern can be illustrated.
  • a module of magnetic elements and a magnetic paint coated substrate are prepared in separately. And then, the magnetic paint coated substrate is introduced into a magnetic field produced by the module while the wet film of magnetic paint keeps its fluidity. As the coated substrate is inserted into the magnetic field and exposed to the magnetic power, magnetic fine particles instantly begin to move within the wet film toward the direction of the magnetic force lines. As the wet film loses its fluidity, the movements of the magnetic material slow down and finally terminate near the magnetic force lines. Thus, an explicit continuous pattern corresponding to the configuration pattern of the module appears in the magnetic paint film.
  • each magnetic element comprises a rectangular or circular metallic plate having a North magnetic pole and a South magnetic pole situated at the opposite edges thereof; adjacent magnetic elements being disposed in accordance with the present invention such that the North magnetic pole of one element is positioned in close vicinity of the South magnetic pole of the other element.
  • the magnetic elements comprise bar-shape or U-shape magnets each having a North magnetic pole and a South magnetic pole situated at the opposite edges thereof, and each magnet is perpendicularly disposed to the substrate.
  • the magnetic elements are filled up within a rubber or plastic sheet in a plurality of striped patterns.
  • the magnetic powder to be contained in the magnetic paint stainless steel powder, ferrous powder, Fe3O4 coated mica powder, alloy powder containing iron, cobalt and cickel, magnetic iron oxide coated resin particles or the like may be utilized as far as it can move within the wet film or change its direction under the influence of a magnetic force.
  • the aforementioned Fe3O4 coated mica powder is well known as a nacreous pigment of paint. It should be noted that an ordinary pigment can be utilized in the present invention as far as it has a property to be influenced by a magnetic force.
  • any kind of ordinary paint can be utilized as far as it can form a cured film after having finished a series of processes including a coating under a fluid condition and a baking or drying to harden the film.
  • the magnetic paint includes, other than the magnetic powder, a pigment, vehicle resin, curing agent, solvent or the like.
  • the containing ratio of the magnetic powder relative to the magnetic paint is determined in a range such that an explicit pattern appears under the influence of a magnetic force. According to an experiment, the ratio is preferably more than 0.1 percent of the magnetic paint by weight.
  • the magnetic paint may be selected from an ordinary type which is hardened by a baking process or air drying process under the ambient temperature.
  • the coating system can be selected from the following:
  • this invention can apply to miscellaneous coating processes including more complicated coating steps, as far as the wet film is magnetically accessible from outside.
  • a base color coating is formed upon a surface of a substrate as a first-coated layer
  • magnetic paint can be applied to the surface as an additional ornamental layer.
  • some portions of the ornamental layer becomes thinner under the influence of a magnetic force.
  • some portions of the first-coated layer appear and provide delicate color patterns which have not yet been illustrated.
  • non-magnetizable material such as synthetic resin, rubber, ceramic or aluminum plate is preferable, since these materials do not affect the magnetic force of the magnetic element.
  • some kinds of magnetizable materials may be used.
  • the influence is small.
  • such approaching operation toward the surface is not desirable because a collision may happen between the wet film and the magnetic elements, resulting in a destruction of the coated layer.
  • the module of the magnetic elements should be supported on a guiding device, which may comprise a supporting rail, handling arm or similar member.
  • a guiding device which may comprise a supporting rail, handling arm or similar member.
  • the forming method of the invention can be preferably utilized for illustrating various letters, characters, or figures upon a coated surface.
  • the method can be utilized for representing a repetitive pattern over a large area of the substrate. In this case, a plurality of magnetic modules are prepared or a single module is repeatedly used.
  • FIG. 1 is a plan view of a reverse side of a substrate to be coated utilizing the method of the present invention.
  • FIG. 2 is a sectional view taken along the line A -A in FIG. 1.
  • FIG. 3 is a plan view of the surface of the substrate which is coated by the method of the present invention.
  • FIG. 4 is a sectional view of an alternative embodiment similar to FIG. 2.
  • FIG. 5 is a plan view illustrating an alternative module of multi-pole type magnetic elements.
  • FIG. 6 is a perspective view of a modified module utilizing column-type magnetic elements.
  • FIG. 7 is a plan view illustrating an arrangement of circular magnetic elements.
  • FIG. 8 is a plan view illustrating an alternative arrangement of the magnetic elements in FIG. 7.
  • FIG. 9 is a perspective view of a modified arrangement utilizing a combination of several types of magnetic elements.
  • FIGS. 1 to 3 there is shown a first embodiment utilizing the method of the present invention.
  • an arrayed module 15 which comprises a plurality of rectangular magnetic elements 11 supported on a sticking tape 30.
  • Each of the magnetic elements 11 carries a North magnetic pole and a South magnetic pole at the opposite edges.
  • the magnetic elements 11 are disposed side by side, and adjacent elements 11 are disposed such that the North pole of one element is positioned in close vicinity of the South pole of the other element, and that the South pole of the one element is positioned in close vicinity of the North pole of the other element. Accordingly, strong magnetic force lines are produced between the elements, of course in an imaginary form.
  • FIG. 2 shows a relationship among the coated paint 20, the substrate 10, the magnetic element 11 and the sticking tape 30. It should be noted that the element 11 is firmly sticked to the substrate 10 by the sticking tape 30.
  • FIG. 3 shows a surface which has been coated with magnetic paint.
  • magnetic paint is sprayed on the surface. Since an imaginary chain of magnetic force lines is formed along the module 15, as soon as the magnetic paint is thrown into the magnetic field and applied to the surface of the substrate, magnetic fine particles instantly begin to move within a wet film of the magnetic paint toward the direction of the magnetic force lines. As the wet film loses its fluidity, the movements of the magnetic material slow down and finally terminate near the magnetic force lines.
  • a transitional area 24 in which a color tone is different from that of the adjacent area appears on the surface of the substrate 10.
  • the configuration of the area 24 is corresponding to the configuration pattern of the module 15. It should be noted that the configuration of the pattern 24 is not identical with the configuration pattern of the separated magnetic elements 11.
  • the surface of the substrate 10 is subjected to a baking process or drying process for stabilizing the pattern.
  • the transitional area 24 grows an explicit pattern.
  • This pattern is essentially an transitional tone area among the coated layer, so that the surface of the substrate 10 remains flat free from irregularities. This pattern does not vanish as long as the coated layer remains on the surface. Further, this pattern does not vary under the influence of a sunlight.
  • FIG. 4 shows an alternative embodiment of the pattern making process.
  • an appropriate pre-treatment is applied to the surface of the substrate 40, and then a primer layer 41 is formed by spraying of liquid paint to the surface. From this stage, this invention is applied to the pre-coated surface.
  • the module of metallic elements 11 is sticked to the reverse side of the substrate 40 accompanied by a sticking tape 30.
  • a magnetic paint layer 42 is formed. While magnetic paint is sprayed upon the primer layer 41 to make a wet film thereon, the aforementioned pattern is formed within the magnetic paint layer 42. Further, subsequently to the magnetic paint layer 42, a final coating layer 43 of clear paint is formed.
  • these layers 42 and 43 are subjected to a baking or drying step.
  • FIG. 5 shows an alternative module 55 consisting of right and left multi-pole type magnetic elements 51, 52 and so on.
  • Adjacent magnetic elements 51 and 52 are disposed such that each of the North magnetic poles of the element 51 is positioned in close vicinity of the South magnetic pole of the element 52, and that each of the South magnetic poles of the element 51 is positioned in close vicinity of the North magnetic pole of the element 52.
  • the magnetic force lines M are directed along the longitudinal direction of the module 55, so that a pattern revealed on the surface of the substrate becomes a continuous I-shape pattern having a relatively large width.
  • FIG. 6 shows a modified module 63 utilizing column-type magnetic elements 61, 62 and so on.
  • This module 63 is used to illustrate a C-shape pattern on the surface of the substrate 10.
  • Adjacent magnetic elements 61 and 62 are disposed such that the North magnetic pole of one element is positioned in close vicinity of the South magnetic pole of the other element. According to this arrangement, the magnetic force lines are directed along the centerline of the module 63, so that a pattern revealed on the surface of the substrate 10 becomes a continuous C-shape pattern. It should be noted that the revealed pattern is not a dotted pattern of the column-type magnets.
  • FIG. 7 shows a modified arrangement of magnetic elements.
  • the module 66 comprises a plurality of circular magnetic elements 64, 65 and so on. As compared with the arrangement in FIG. 6, each of the magnetic elements is rotated in a right angle. Adjacent magnetic elements 64 and 65 are disposed such that the North magnetic pole of one element is positioned in the same lateral side as the South magnetic pole of the other element, so that two parallel magnetic force lines M are formed on the upper space of the module 66. According to this arrangement, the magnetic force lines are directed along the lateral sides of the module 66, so that a pattern revealed on the surface of the substrate becomes an arcuate pattern, which is not identical with the dotted pattern of the circular magnets.
  • FIG. 8 shows an alternative arrangement of the magnetic elements in FIG. 7.
  • adjacent magnetic elements 67 and 68 of the module 69 are disposed such that the North magnetic pole of one element is positioned in the same lateral side as the North magnetic pole of the other element, and that the South magnetic pole of one element is positioned in the same lateral side as the South magnetic pole of the other element.
  • the magnetic force lines M are directed in a cross-over form due to a repelling force between the same magnetic poles, resulting in random lines.
  • this random magnetic force lines a delicate complicated pattern similar to an arcuate form appears on the surface of the substrate. Of course, this pattern is not identical with the dotted pattern of the circular magnets.
  • FIG. 9 shows a modified arrangement utilizing a combination module 75 including two types of magnetic elements.
  • One type consists of ordinary two-pole magnetic elements 61 and 62, and the other type consists of multi-pole magnetic elements 71 and 72.
  • the module 75 can reveal a continuous H-shape pattern upon the surface of the substrate.
  • a North magnetic pole and a South magnetic pole are easily detected by approaching a compass to the object. Therefore, the miscellaneous arrangements as shown in the drawings are easily prepared and utilized.
  • the magnetic elements can be connected by a sticking tape or similar parts. Since the module of the magnetic elements can be removed easily, after the usage, no damage is occurred upon the substrate.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (2)

  1. Procédé de formation d'une couche à motifs visibles sur une surface d'un substrat non magnétisable (10)
    caractérisé en ce que
    ledit procédé comprend les étapes consistant à :
       préparer une pluralité d'éléments magnétiques séparés (11) composés en un module agencé (15) d'éléments avec les pôles de chaque aimant disposés dans un plan commun parallèle au substrat (10), chaque pôle de chaque élément magnétique (11) étant disposé à proximité d'un pôle opposé d'un élément magnétique adjacent,
       amener ledit module (15) à proximité immédiate de l'envers d'un substrat non magnétisable (10),
       appliquer une couche d'une peinture magnétique (20) contenant un matériau magnétique sous forme de poudre sur la surface dudit substrat (10) opposé à l'envers du substrat afin de former un film humide sur celui-ci, d'où il résulte, en raison du champ magnétique du module (15), que la couche à motifs visibles (24) est formée dans la couche de peinture magnétique à cause du déplacement du matériau magnétique sous forme de poudre en réponse aux lignes de force magnétique des éléments magnétiques séparés dans le module (15), couche à motifs visibles (24) qui diffère en ton des zones adjacentes de la couche de peinture magnétique (20), et
       durcir le film humide par cuisson ou séchage, procurant ainsi un motif continu visible (24) correspondant au motif de la configuration dudit module (15) sur la surface du substrat, ledit motif (24) continu visible différant du motif procuré par chaque élément magnétique (11) seul.
  2. Procédé de formation d'une couche à motifs visibles sur une surface d'un substrat non magnétisable (10),
    caractérisé en ce que
    ledit procédé comprend les étapes consistant à :
       préparer une pluralité d'éléments magnétiques séparés composés en un module agencé (15) d'éléments avec les pôles de chaque aimant disposés dans un plan commun parallèle au substrat (10), chaque pôle de chaque élément magnétique (11) étant disposé à proximité d'un pôle opposé d'un élément magnétique adjacent,
       appliquer une couche de peinture magnétique (20) contenant un matériau magnétique sous forme de poudre sur une surface d'un substrat non magnétisable (10) afin de former un film humide sur celui-ci,
       amener ledit module (15) vers la surface ou le côté envers dudit substrat revêtu (10) à proximité immédiate dudit film humide pendant que le film humide conserve sa fluidité, d'où il résulte, en raison du champ magnétique du module (15), que la couche à motifs visibles est formée dans la couche de peinture magnétique (20) à cause du deplacement du matériau magnétique sous forme de poudre en réponse aux lignes de force magnétique des éléments magnétiques séparés dans le module (15), couche à motifs visibles (24) qui diffère en ton des zones adjacentes de la couche de peinture magnétique (20), et
       durcir le film humide par cuisson ou séchage, procurant ainsi un motif continu visible (24) correspondant au motif de la configuration dudit module (15) à l'intérieur du film de peinture magnétique, ledit motif continu visible (24) différant du motif procuré par chaque élément magnétique (11) seul.
EP90112121A 1989-06-27 1990-06-26 Méthode de formation d'une couche à dessins Expired - Lifetime EP0406667B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP164807/89 1989-06-27
JP1164807A JPH0330876A (ja) 1989-06-27 1989-06-27 塗装面への模様形状の形成方法
JP331039/89 1989-12-22
JP33103989A JP2844232B2 (ja) 1989-12-22 1989-12-22 模様塗膜の形成方法

Publications (2)

Publication Number Publication Date
EP0406667A1 EP0406667A1 (fr) 1991-01-09
EP0406667B1 true EP0406667B1 (fr) 1995-01-11

Family

ID=26489768

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90112121A Expired - Lifetime EP0406667B1 (fr) 1989-06-27 1990-06-26 Méthode de formation d'une couche à dessins

Country Status (5)

Country Link
EP (1) EP0406667B1 (fr)
KR (1) KR0135274B1 (fr)
AU (1) AU631435B2 (fr)
CA (1) CA2019844A1 (fr)
DE (1) DE69015900T2 (fr)

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US6902807B1 (en) 2002-09-13 2005-06-07 Flex Products, Inc. Alignable diffractive pigment flakes
EP1669213A1 (fr) 2004-12-09 2006-06-14 Sicpa Holding S.A. Elément de sécurité avec un aspect dépendent de l'angle d'observation
US7258900B2 (en) 2002-07-15 2007-08-21 Jds Uniphase Corporation Magnetic planarization of pigment flakes
US7667895B2 (en) 1999-07-08 2010-02-23 Jds Uniphase Corporation Patterned structures with optically variable effects
US7674501B2 (en) 2002-09-13 2010-03-09 Jds Uniphase Corporation Two-step method of coating an article for security printing by application of electric or magnetic field
US7729026B2 (en) 2002-09-13 2010-06-01 Jds Uniphase Corporation Security device with metameric features using diffractive pigment flakes
US7876481B2 (en) 1999-07-08 2011-01-25 Jds Uniphase Corporation Patterned optical structures with enhanced security feature
US7934451B2 (en) 2002-07-15 2011-05-03 Jds Uniphase Corporation Apparatus for orienting magnetic flakes
US8025952B2 (en) 2002-09-13 2011-09-27 Jds Uniphase Corporation Printed magnetic ink overt security image
US8118963B2 (en) 2002-09-13 2012-02-21 Alberto Argoitia Stamping a coating of cured field aligned special effect flakes and image formed thereby
US8343615B2 (en) 2002-07-15 2013-01-01 Jds Uniphase Corporation Dynamic appearance-changing optical devices (DACOD) printed in a shaped magnetic field including printable fresnel structures
CN101827900B (zh) * 2007-09-26 2013-01-30 井上株式会社 图案形成用涂料和图案形成方法
US8999616B2 (en) 2002-09-13 2015-04-07 Jds Uniphase Corporation Taggent flakes for covert security applications having a selected shape
US9027479B2 (en) 2002-07-15 2015-05-12 Jds Uniphase Corporation Method and apparatus for orienting magnetic flakes
WO2015086257A1 (fr) 2013-12-13 2015-06-18 Sicpa Holding Sa Procédé de production de couches à effets
US9102195B2 (en) 2012-01-12 2015-08-11 Jds Uniphase Corporation Article with curved patterns formed of aligned pigment flakes
US9164575B2 (en) 2002-09-13 2015-10-20 Jds Uniphase Corporation Provision of frames or borders around pigment flakes for covert security applications
WO2016016028A1 (fr) 2014-07-30 2016-02-04 Sicpa Holding Sa Procédés commandés par courroie permettant de produire des couches à effet optique
WO2016026896A1 (fr) 2014-08-22 2016-02-25 Sicpa Holding Sa Appareil et procédé de production de couches à effet optique
US9458324B2 (en) 2002-09-13 2016-10-04 Viava Solutions Inc. Flakes with undulate borders and method of forming thereof
WO2018019594A1 (fr) 2016-07-29 2018-02-01 Sicpa Holding Sa Procédés de production de couches à effet
WO2018033512A1 (fr) 2016-08-16 2018-02-22 Sicpa Holding Sa Procédés de production de couches à effets
WO2018141547A1 (fr) 2017-01-31 2018-08-09 Sicpa Holding Sa Appareil et méthode de production de couches à effet optique
US10279618B2 (en) 2013-08-05 2019-05-07 Sicpa Holding Sa Magnetic or magnetisable pigment particles and optical effect layers
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AU5781690A (en) 1991-01-03
AU631435B2 (en) 1992-11-26
CA2019844A1 (fr) 1990-12-27
KR0135274B1 (ko) 1998-04-22
KR910000250A (ko) 1991-01-29
DE69015900T2 (de) 1995-06-22
EP0406667A1 (fr) 1991-01-09
DE69015900D1 (de) 1995-02-23

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