|Publication number||US3791864 A|
|Publication date||Feb 12, 1974|
|Filing date||Nov 5, 1971|
|Priority date||Nov 7, 1970|
|Also published as||DE2054934A1, DE2054934B2|
|Publication number||US 3791864 A, US 3791864A, US-A-3791864, US3791864 A, US3791864A|
|Original Assignee||Magnetfab Bonn Gmbh, Weilburger Lackfab J|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (6), Referenced by (109), Classifications (20)|
|External Links: USPTO, USPTO Assignment, Espacenet|
United States Patent [191 Steingroever [451 Feb. 12, 1974 METHOD OF ORNAMENTING ARTICLES BY MEANS OF MAGNETIC-ALLY ORIENTED PARTICLES  Inventor:
 Assignees: Magnetfabrik Bonn G.m.b.H.,
Bonn/Bad Goldesberg; Weilburger Lackfabrik ,1. Grebe, Weilburg/Lahn, both of, Germany; part interest to each  Filed: Nov. 5, 1971  Appl. No.: 196,171
Erich Steingroever, Bonn, Germany  Foreign Application Priority Data Nov, 7, 1970 Germany 2054934  US. Cl. 117/238, 117/239  Int. Cl. H01f 10/00  Field of Search 1 17/234-240; 252/6254  References Cited UNITED STATES PATENTS 3,676,273 7/1972 Graves 117/238 X 3,149,996 9/1964 Wagner et a1. 117/239 3,043,685 7/1962 Rosenthal 117/238 X 3,371,044 2/1968 Cochardt 252/6254 2,570,856 lO/l95l Pratt et a1. 117/238 X 3,047,428 7/1962 Hiroshi et a1. 117/238 Primary ExaminerWi1liam D. Martin Assistant Examiner-Bernard D. Pianalto Attorney, Agent, or Firm-Arnold B. Christen  ABSTRACT A patterned effect can be produced in coatings applied to any surface by employing a preliminary coating which includes a liquid vehicle in which permanent magnet particles are suspended; the coating beingapplied and then hardened, after which the particles are magnetized under the influence of magnetic lines of force arranged in a predetermined pattern, and another coating containing magnetically orientable particles is applied, which particles become oriented by the magnetic field product by the particles first applied.
14 Claims, 3 Drawing Figures METHOD OF ORNAMENTING ARTICLES BY MEANS OF MAGNETICALLY ORIENTED PARTICLES The present invention relates to a method for producing a pattern on surfaces by applying a coating thereto, which contains magnetically orientable particles, and creating a pattern in this coating by means of magnetic fields.
lt is already known to create nacre-like effects in plastic materials by admixing thereto lamellate or rodshaped crystals with a high index of refraction. A known method of positioning the crystals in a desired way within the plastic material, for instance parallel to the surface of the object, consists in orienting the crystals by means of an electric or magnetic field. The basic idea of this method is derived from the fact that these crystals naturally possess a dipole moment of force, or else that such a moment of force can be induced in them under the effect of a magnetic field. Under the effect of such a field the crystals orient themselves parallel to the lines of flux. For example, a known process for manufacturing an abrasive utilizes this method.
Further, a method for producing transparent plastic materials is known, which can be used to manufacture objects or panels commercially in large amounts. According to this method, polytetrafluorethylene dispersions are used to manufacture decorated transparent plastic materials by admixing preferably lamellate particles withthe plastic material, varying the positions of the particles by means of a magnetic field and subsequently drying the mixture.
Up to the present, however, there has always been the desire to also provide opaque objects with finishes having particular patterns, which could not be achieved with the methods hitherto known in the coating industry. Therefore, a method has been proposed for producing a pattern during the coating of surfaces, according to which a finish containing magnetic components is applied, under the effect of magnetic fields, onto the surfaces to be coated. For this purpose, the objects are placed on devices which product magnetic fields in accordance with the desired patterns. The lines of magnetic flux act through the surface to be coated and extend in arcuate paths from the north pole to the south pole, as is well known. The surface is then covered with a coating containing magnetic components. These magnetic particles orient themselves in the still unhardened coating according to the lines of magnetic flux. After hardening, the coating displays the desired pattern which reproduces the magnetic pattern used by virtue of differences in brightness and reflectivity.
Further, it has been proposed to create the patterns in a similar way in panels of ceramic material, enamel, pigment solutions with or without binders, pastes, varnishes, lacquers, and synthetic resins, etc. either colored or uncolored. For instance, according to this method, the powdery or pasty ceramic material is exposed to the effect of magnetic fields, then melted, and finally hardened.
According to the known and ,proposed methods the corresponding arrangement of the magnets, in front or in back of the respective surface to be coated or to be provided with the color patterns, has to be maintained during the whole coating and hardening process, to permit the lines of magnetic flux to act upon the still movable magnetically orientable particles in the coating. Further, if the magnets are arranged, according to both the known and proposed processes, above the recently coated, but unhardened, layer, there is the danger that the magnetically orientable particles will be drawn out of the coating if the magnetic fields are too strong. Moreover, the known methods are very timeconsuming since the hardening of the coating has to be completed while the magnetic particles disposed therein are fixedly oriented.
The object of the present invention is therefore to provide a method which permits the application of patterns on surface coatings in any paint shop without requiring magnet arrangements from the outside.
This object can be accomplished, according to the invention, by applying a primer or other preliminary coating containing permanent magnetic particles to the desired surface, hardening said primer and magnetizing it according to the desired pattern, after which a liquid coating containing magnetically orientable particles can be applied to said primer and be hardened. The new method according to the invention offers the advantageous possibility that the untreated objects whose surfaces normally require a primer anyway, can be supplied to the industry, for their subsequent treatment, already provided with this layer of primer. Thus, only the desired finish coating needs to be applied in the usual manner, and the desired pattern automatically appears. The new method can further be advantageously applied to thick objects which cannot be magnetically influenced from the opposite side, generally the bottom side, such as for example thick steel plates and brickwork;
According to the invention the primer or first coating preferably contains magnetizable permanent magnetic particles with high coercivity and consisting of ferrite of the type MO X6Fe O wherein M can be one or more of the elements Ba, Sr, Ca or Pb. The fluid coating containing the magnetically orientable particles can have a composition as disclosed in the German patent application No. P 20 06 848.8. A baking or vulcanizing or other form of hardening step can also be used instead of the above mentioned drying step.
The originally unmagnetized permanent magnetic particles are added to a conventional liquid vehicle, wuch as a primer and the mixture is applied to the surface. Whilst the particles are still movable in the primer which has not yet hardened, or even after the particles are already fixed due to the drying of the primer, the desired magnet arrangement, or a magnetization device having a similar effect, is applied to the surface, either at the front or at the back of it. The particles become magnetized and, as the result of their high coercivity, produce a magnetic field which corresponds to the magnet arrangement.
Generally, the primer consists of a pigmented layer in which the permanent magnetic particles are not visible. A plate or object which has been pre-treated in this way can thus be marketed. For example, the manufacturer can sell this object together with coatings containing magnetically orientable particles.
A particular feature of .the invention consists in that the finish coating containing the magnetically orientable particles may either be directly applied to the primer or to further intermediate layers of varnish, plastic, resin or similar materials to said primer, since the lines of magnetic flux will act through these layers. The time required for the magnetization can be considerably reduced by this new method, since the magnetization of the primer can be carried out in its dry condition, thus only requiring a fraction of a second. It is also possible to obtain particular patterns by applying the magnet several times, and in different directions, to the primer, without having to take into consideration the hardening time,.since the primer is already hard and dry. The whole working cycle becomes more flexible, since the step of applying the primer, of magnetizing it and of applying the coating containing the magnetically orientable particles can be carried out completely independent from each other. The product of the first and second steps can be stored in large quantities, in order to be furnished to the second or third step, respectively, according to the demand.
According to the invention the magnetically orientable particles preferably consist of powdery lamellate or rod-shaped iron and the object or the surface to be treated may consist of a ferromagnetic base, particularlya steel plate. However, the new method is independent of the thickness of the steel plate and is also effective on wood, plastic, ceramics and similar materials.
A particularly suitable device to carry out the method of the invention to magnetize the permanent magnetic particles of the primer layer comprises an electric conductor which is shaped according to the desired magnetic field, which can be applied to the primer and through which a high electric current is sent. This can preferably be achieved by the use ofa conventional circuit which utilizes the discharge from a condenser. Further, apparatus to carry out the method of the invention is characterized in that the electric conductor is insulated and is imbedded in recesses provided in the surface of an iron terminal.
, According to a particular feature of the invention the permanent magnetic particles are made of a material having a (B-H),,,,, value of 1-4-10 gauss'oersted. The coercivity I'I has preferably a value which is higher than 2,000 oersted and the retentivity B, has a value of 2,000 to 4,000 gauss.
Following is a description of a composition which is suitable for a primer according to the invention although it is not to be construed that other compositions arenot equally suitable. The primer is hardened by baking and the desired pattern is afterwards applied to it by-magnetization:
20 parts of ricinine alkyd 10 parts of urea or melamine resin 10 parts of titanium dioxide 10 parts of talc parts of benzol hydrocarbon and 35 parts of OX 300, that is a powdery anisotropic ferrite of the type of MO-6Fe O wherein M can be one or more of the elements Ba, Sr, Co or Pb. The method according to the invention has particularly proved to be suitable for objects made of ferromagnetic material, particularly steel plate, and provided with a permanent magnetic primer of the type above described.
Other advantages, features and applications of the present invention will be apparent from the following detailed description with relation to the accompanied drawings, in which:
FIG. 1 shows a magnetic plate which has been provided with a striped pattern,
FIG. 2 shows a rose-like pattern provided on an iron surface, and
FIG. 3 shows a top view of another form of magnetic pattern plate.
To create the magnetic field a permanent magnetic plate can be used which is provided with a pattern defined by striped areas of alternating polarity. This pattern is produced by magnetization of the plate according to a known procedure which is similar to the one used in the manufacture of permanent magnets. Instead of the permanent magnetic plate an ele ctromagnet can also be used in which insulated electric conductors are imbedded in parallel grooves provided in the surface of an iron plate 1. When a strong electric current is sent through theconductors the pattern shown in FIG. 1 appears on the object or surface 2 provided with the primer containing the magnetic particles. The permanent magnetic particles can also be magnetized by the lines of flux in such a way that they invisibly carry the pattern 2 of FIG. 1 on the primed surface and with the result that lines of flux run from the permanent magnetic particles along lines N to the particles along the parallel lines S. This pattern can be immediately made visible 'by applying'the finish coating containing particles which are sensitive to the magnetic fields of the magnetic particles in the primer defining said invisible pattern on plate 2,
FIG. 2 shows a six-poled, frontal magnetization effect produced by a ring magnet made of barium ferrite. The shape and the range of the magnetic field can be very accurately determined therein.
FIG. 3 shows a magnetic plate to produce a particular pattern containing an arrangement of circles and rectangles. Such a pattern can also be obtained by combining electromagnets. For example, elongated strips 4 cut out of a flexible permanent magnet, or electromagnets corresponding in shape thereto and other forms of magnetic metal parts 5 can be located at various distances from said strips 4, or correspondingly shaped electromagnets are fixedly arranged in a mounting support 3.
The surfaces provided with such new and aesthetically arranged patterns of magnetic particles can be applied to household objects, to the panelling of safes and buildingwallsgenerally, and can also be used in furniture and in the glass and ceramic industry, particularly for the manufacture of tiles.
The final coating, or coatings, of liquid material containing magnetically orientable particles can thus be applied after the treated surfaces, or panels, have been put in place.
1. Method of producing a pattern in a coating applied to the surface of an object, comprising the steps of combining permanent magnetic ferrite particles having a coercivity H greater than 2,000 oersted in a fluid binder, applying said mixture of fluid binder and particles to the surface of an object, hardening said mixture to secure said magnetic particles to said object, magnetizing said magnetic particles to define a predetermined pattern, applying a fluid coating which includes magnetically orientable particles, and hardening the second coating so that the magnetically orientable particles adopt the pattern defined by the previously applied magnetic particles.
2. Method of claim 1, wherein said magnetically orientable particles comprise lamellar iron.
produces a lustrous finish.
7. Method of claim 1, which includes the step of applying at least one intermediate coating after said binder and prior to the application of the coating including magnetically orientable particles.
8. Method of claim 1, wherein said magnetically orientable particles comprise powdered iron.
9. Method of claim 7, wherein said intermediate coating produces a lustrous finish.
10. Method of claim 7, wherein said intermediate coating comprises a synthetic plastic.
11. Method of claim 1, wherein said object comprises a steel plate.
12. Method of claim I, which includes the step of subjecting said magnetic particles to the influence of magnetic lines of force to define said pattern.
13. Method of claim 12, which includes the step of utilizing a permanent magnet to supply said magnetic lines of force.
14. Method of claim 12, which includes the step of utilizing an electromagnet to supply said magnetic lines offorce.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US2570856 *||Mar 25, 1947||Oct 9, 1951||Du Pont||Process for obtaining pigmented films|
|US3043685 *||Jul 18, 1957||Jul 10, 1962||Xerox Corp||Xerographic and magnetic image recording and reproducing|
|US3047428 *||Jan 26, 1959||Jul 31, 1962||Fuji Photo Film Co Ltd||Magnetic recording material|
|US3149996 *||Nov 14, 1961||Sep 22, 1964||Basf Ag||Magnetic record member|
|US3371044 *||Jan 24, 1964||Feb 27, 1968||Westinghouse Electric Corp||Ferrite magnets|
|US3676273 *||Jul 30, 1970||Jul 11, 1972||Du Pont||Films containing superimposed curved configurations of magnetically orientated pigment|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US4058116 *||Dec 17, 1975||Nov 15, 1977||Louis Bucalo||Methods, materials, and devices for providing electrical conductivity particularly for living beings|
|US4767584 *||Apr 3, 1985||Aug 30, 1988||Massachusetts Institute Of Technology||Process of and apparatus for producing design patterns in materials|
|US4935083 *||Sep 21, 1988||Jun 19, 1990||Massachusetts Inst Technology||Process for producing design patterns on materials|
|US5364689 *||Oct 21, 1992||Nov 15, 1994||Hashimoto Forming Industry Co., Ltd.||Painting with magnetically formed pattern and painted product with magnetically formed pattern|
|US5630877 *||May 25, 1995||May 20, 1997||Hashimoto Forming Industry Co., Ltd.||Painting with magnetically formed pattern and painted product with magnetically formed pattern|
|US6103361 *||Sep 1, 1998||Aug 15, 2000||E. I. Du Pont De Nemours And Company||Patterned release finish|
|US6759097||Dec 23, 2002||Jul 6, 2004||Flex Products, Inc.||Methods for producing imaged coated articles by using magnetic pigments|
|US6818299||Feb 7, 2003||Nov 16, 2004||Flex Products, Inc.||Multi-layered magnetic pigments and foils|
|US6838166||Aug 8, 2003||Jan 4, 2005||Flex Products, Inc.||Multi-layered magnetic pigments and foils|
|US6902807||Sep 13, 2002||Jun 7, 2005||Flex Products, Inc.||Alignable diffractive pigment flakes|
|US7047883||Mar 11, 2003||May 23, 2006||Jds Uniphase Corporation||Method and apparatus for orienting magnetic flakes|
|US7169472||Feb 13, 2003||Jan 30, 2007||Jds Uniphase Corporation||Robust multilayer magnetic pigments and foils|
|US7241489||Jan 20, 2004||Jul 10, 2007||Jds Uniphase Corporation||Opaque flake for covert security applications|
|US7258900||Nov 13, 2002||Aug 21, 2007||Jds Uniphase Corporation||Magnetic planarization of pigment flakes|
|US7258915||Aug 14, 2003||Aug 21, 2007||Jds Uniphase Corporation||Flake for covert security applications|
|US7300695||Jan 4, 2005||Nov 27, 2007||Jds Uniphase Corporation||Alignable diffractive pigment flakes|
|US7517578||Dec 22, 2004||Apr 14, 2009||Jds Uniphase Corporation||Method and apparatus for orienting magnetic flakes|
|US7550197||Jul 11, 2007||Jun 23, 2009||Jds Uniphase Corporation||Non-toxic flakes for authentication of pharmaceutical articles|
|US7604855||Oct 20, 2009||Jds Uniphase Corporation||Kinematic images formed by orienting alignable flakes|
|US7625632||Aug 2, 2006||Dec 1, 2009||Jds Uniphase Corporation||Alignable diffractive pigment flakes and method and apparatus for alignment and images formed therefrom|
|US7645510||Oct 4, 2005||Jan 12, 2010||Jds Uniphase Corporation||Provision of frames or borders around opaque flakes for covert security applications|
|US7667895||Feb 23, 2010||Jds Uniphase Corporation||Patterned structures with optically variable effects|
|US7674501||May 1, 2006||Mar 9, 2010||Jds Uniphase Corporation||Two-step method of coating an article for security printing by application of electric or magnetic field|
|US7729026||Dec 12, 2006||Jun 1, 2010||Jds Uniphase Corporation||Security device with metameric features using diffractive pigment flakes|
|US7876481||Jan 25, 2011||Jds Uniphase Corporation||Patterned optical structures with enhanced security feature|
|US7880943||Oct 1, 2007||Feb 1, 2011||Jds Uniphase Corporation||Patterned optical structures with enhanced security feature|
|US7934451||May 3, 2011||Jds Uniphase Corporation||Apparatus for orienting magnetic flakes|
|US8025952||Sep 27, 2011||Jds Uniphase Corporation||Printed magnetic ink overt security image|
|US8057889 *||Nov 15, 2011||Corning Incorporated||Method for producing anisoptropic bulk materials|
|US8118963||Jun 27, 2007||Feb 21, 2012||Alberto Argoitia||Stamping a coating of cured field aligned special effect flakes and image formed thereby|
|US8147925 *||Apr 5, 2007||Apr 3, 2012||Inoac Corporation||Pattern forming method|
|US8211531||Nov 10, 2005||Jul 3, 2012||Sicpa Holding Sa||Security element having a viewing-angel dependent aspect|
|US8246735||Mar 29, 2007||Aug 21, 2012||Sicpa Holding Sa||Coating composition for producing magnetically induced images|
|US8303700||Nov 6, 2012||Sicpa Holding Sa||Coating composition for producing magnetically induced|
|US8343615||Apr 4, 2006||Jan 1, 2013||Jds Uniphase Corporation||Dynamic appearance-changing optical devices (DACOD) printed in a shaped magnetic field including printable fresnel structures|
|US8354145||Mar 20, 2007||Jan 15, 2013||Akzo Nobel Coatings International B.V.||Method of applying a pattern to a substrate|
|US8551389 *||Sep 14, 2011||Oct 8, 2013||Corning Incorporated||Method for producing anisoptropic bulk materials|
|US8557403||Sep 18, 2007||Oct 15, 2013||Sicpa Holding S.A.||Method and means for magnetically transferring indicia to a coating composition applied on a substrate|
|US8658280||Oct 28, 2011||Feb 25, 2014||Jds Uniphase Corporation||Taggent flakes for covert security applications having a selected shape|
|US8696031||Jul 6, 2007||Apr 15, 2014||Sicpa Holding Sa||Oriented image coating on transparent substrate|
|US8726806||Sep 26, 2012||May 20, 2014||Jds Uniphase Corporation||Apparatus for orienting magnetic flakes|
|US8999616||Jan 9, 2014||Apr 7, 2015||Jds Uniphase Corporation||Taggent flakes for covert security applications having a selected shape|
|US9011752||Mar 3, 2008||Apr 21, 2015||Nokia Corporation||Electromagnetic wave transmission lines using magnetic nanoparticle composites|
|US9027479||Oct 6, 2009||May 12, 2015||Jds Uniphase Corporation||Method and apparatus for orienting magnetic flakes|
|US9102195||Jan 9, 2013||Aug 11, 2015||Jds Uniphase Corporation||Article with curved patterns formed of aligned pigment flakes|
|US9164575||Oct 31, 2007||Oct 20, 2015||Jds Uniphase Corporation||Provision of frames or borders around pigment flakes for covert security applications|
|US9216605||Mar 3, 2011||Dec 22, 2015||Sicpa Holding Sa||Security thread or stripe comprising oriented magnetic particles in ink, and method and means for producing same|
|US9257059||Nov 29, 2012||Feb 9, 2016||Viavi Solutions Inc.||Dynamic appearance-changing optical devices (DACOD) printed in a shaped magnetic field including printable fresnel structures|
|US20030165637 *||Dec 23, 2002||Sep 4, 2003||Flex Products, Inc.||Methods for producing imaged coated articles by using magnetic pigments|
|US20040028905 *||Aug 8, 2003||Feb 12, 2004||Phillips Roger W.||Multi-layered magnetic pigments and foils|
|US20040051297 *||Mar 11, 2003||Mar 18, 2004||Flex Products, Inc., A Jds Uniphase Company||Method and apparatus for orienting magnetic flakes|
|US20040151827 *||Jan 20, 2004||Aug 5, 2004||Flex Products, Inc., A Jds Uniphase Company||Opaque flake for covert security applications|
|US20040166308 *||Feb 13, 2003||Aug 26, 2004||Raksha Vladimir P.||Robust multilayer magnetic pigments and foils|
|US20050009846 *||Dec 18, 2003||Jan 13, 2005||Fischer Peter Martin||2,6,9-Substituted purine derivatives and their use in the treatment of proliferative disorders|
|US20050037192 *||Aug 14, 2003||Feb 17, 2005||Flex Prodcuts, Inc., A Jds Uniphase Company||Flake for covert security applications|
|US20050106367 *||Dec 22, 2004||May 19, 2005||Jds Uniphase Corporation||Method and apparatus for orienting magnetic flakes|
|US20060077496 *||Nov 15, 2005||Apr 13, 2006||Jds Uniphase Corporation||Patterned structures with optically variable effects|
|US20060097515 *||Dec 20, 2005||May 11, 2006||Jds Uniphase Corporation||Kinematic images formed by orienting alignable flakes|
|US20060194040 *||May 1, 2006||Aug 31, 2006||Jds Uniphase Corporation||Two-step method of coating an article for security printing|
|US20060198998 *||Apr 4, 2006||Sep 7, 2006||Jds Uniphase Corporation||Dynamic appearance-changing optical devices (dacod) printed in a shaped magnetic field including printable fresnel structures|
|US20060263539 *||Aug 2, 2006||Nov 23, 2006||Jds Uniphase Corporation||Alignable Diffractive Pigment Flakes And Method And Apparatus For Alignment And Images Formed Therefrom|
|US20070139744 *||Dec 12, 2006||Jun 21, 2007||Jds Uniphase Corporation||Security Device With Metameric Features Using Diffractive Pigment Flakes|
|US20070172261 *||Jan 15, 2007||Jul 26, 2007||Jds Uniphase Corporation||Apparatus For Orienting Magnetic Flakes|
|US20070183047 *||Apr 17, 2007||Aug 9, 2007||Jds Uniphase Corporation||Optically Variable Security Devices|
|US20070195392 *||Apr 23, 2007||Aug 23, 2007||Jds Uniphase Corporation||Adhesive Chromagram And Method Of Forming Thereof|
|US20070237891 *||Apr 5, 2007||Oct 11, 2007||Inoac Corporation||Pattern Forming Apparatus and Pattern Forming Method|
|US20080003413 *||Jun 27, 2007||Jan 3, 2008||Jds Uniphase Corporation||Stamping A Coating Of Cured Field Aligned Special Effect Flakes And Image Formed Thereby|
|US20080019924 *||Jul 11, 2007||Jan 24, 2008||Jds Uniphase Corporation||Non-Toxic Flakes For Authentication Of Pharmaceutical Articles|
|US20080024847 *||Oct 1, 2007||Jan 31, 2008||Jds Uniphase Corporation||Patterned Optical Structures With Enhanced Security Feature|
|US20080073613 *||Mar 29, 2007||Mar 27, 2008||Inoac Corporation||Coating Composition for Forming Pattern and Coated Article|
|US20080098912 *||Oct 30, 2006||May 1, 2008||Sang Broli Company Limited||Process and compound for producing printed design creating three-dimensional visual effect|
|US20080107856 *||Oct 31, 2007||May 8, 2008||Jds Uniphase Corporation||Provision of Frames Or Borders Around Pigment Flakes For Covert Security Applications|
|US20080292862 *||May 21, 2007||Nov 27, 2008||Filippov Andrey V||Method for producing anisoptropic bulk materials|
|US20090072185 *||Sep 19, 2008||Mar 19, 2009||Jds Uniphase Corporation||Anisotropic Magnetic Flakes|
|US20090130448 *||Nov 16, 2007||May 21, 2009||Arnold Magnetic Technologies||Flexible magnets having a printable surface and methods of production|
|US20090184169 *||Mar 29, 2007||Jul 23, 2009||Sicpa Holding S.A.||Coating Composition for Producing Magnetically Induced Images|
|US20090200791 *||Jul 6, 2007||Aug 13, 2009||Sicpa Holding S.A.||Oriented Image Coating on Transparent Substrate|
|US20090230670 *||Nov 10, 2005||Sep 17, 2009||Sicpa Holding S.A.||Security Element Having a Viewing- Angle Dependent Aspect|
|US20090280307 *||Mar 20, 2007||Nov 12, 2009||Akzo Nobel Coating International B.V.||Method of applying a pattern to a substrate|
|US20100002275 *||Jan 7, 2010||Jds Uniphase Corporation||Security Device With Metameric Features Using Diffractive Pigment Flakes|
|US20100003503 *||Jan 7, 2010||Nokia Corporation||Electromagnetic wave transmission lines using magnetic nanoparticle composites|
|US20100040845 *||Sep 18, 2007||Feb 18, 2010||Sicpa Holding S.A.||Method and Means for Magnetically Transferring Indicia to a Coating Composition Applied on a Substrate|
|US20100208351 *||Mar 18, 2010||Aug 19, 2010||Nofi Michael R||Selective and oriented assembly of platelet materials and functional additives|
|US20120001368 *||Jan 5, 2012||Filippov Andrey V||Method for producing anisoptropic bulk materials|
|US20130160785 *||Feb 26, 2013||Jun 27, 2013||L'oreal||Method of applying makeup to a surface and a kit for implementing such a method|
|USRE45762||Sep 26, 2013||Oct 20, 2015||Jds Uniphase Corporation||Printed magnetic ink overt security image|
|CN1899847B||Jul 7, 2006||May 18, 2011||Jds尤尼弗思公司||Method of coating an article, method for forming image on a substrate and the image|
|CN101394939B||Mar 20, 2007||Jul 18, 2012||阿克佐诺贝尔国际涂料股份有限公司||Method of applying a pattern to a substrate|
|CN104260572A *||Sep 26, 2014||Jan 7, 2015||惠州市华阳光学技术有限公司||Magnetic orientation pattern and preparation method thereof|
|EP1669213A1||Dec 9, 2004||Jun 14, 2006||Sicpa Holding S.A.||Security element having a viewing-angle dependent aspect|
|EP1745940A2 *||Apr 22, 2006||Jan 24, 2007||JDS Uniphase Corporation||A two-step method of coating an article for security printing|
|EP1759446A1 †||May 2, 2005||Mar 7, 2007||Aumann GMBH||Winding device|
|EP1845537A2 *||Apr 5, 2007||Oct 17, 2007||Inoac Corporation||Pattern forming apparatus and pattern forming method|
|EP1880866A1||Jul 19, 2006||Jan 23, 2008||Sicpa Holding S.A.||Oriented image coating on transparent substrate|
|WO1999012662A1 *||Sep 3, 1998||Mar 18, 1999||E.I. Du Pont De Nemours And Company||Patterned release finish|
|WO2003000801A2||Jan 16, 2002||Jan 3, 2003||Flex Products, Inc.||Multi-layered magnetic pigments and foils|
|WO2007065998A1 *||Dec 5, 2006||Jun 14, 2007||Pivaudran Techniques Et Innovations||Method for producing an object from a magnetisable moulded synthetic material and object thus produced|
|WO2010055008A1 *||Nov 9, 2009||May 20, 2010||Crown Packaging Technology, Inc.||Magnetised coating effect|
|WO2010115928A2||Apr 7, 2010||Oct 14, 2010||Sicpa Holding Sa||Piezochromic security element|
|WO2011012520A2||Jul 21, 2010||Feb 3, 2011||Sicpa Holding Sa||Transfer foil comprising optically variable magnetic pigment, method of making, use of transfer foil, and article or document comprising such|
|WO2011107527A1||Mar 3, 2011||Sep 9, 2011||Sicpa Holding Sa||Security thread or stripe comprising oriented magnetic particles in ink, and method and means for producing same|
|WO2012038531A1||Sep 23, 2011||Mar 29, 2012||Sicpa Holding Sa||Device, system and method for producing a magnetically induced visual effect|
|WO2014001332A1 *||Jun 25, 2013||Jan 3, 2014||Institutt For Energiteknikk||Method for forming a body comprising a particle structure fixated in a matrix material|
|WO2014001334A1 *||Jun 25, 2013||Jan 3, 2014||Institutt For Energiteknikk||Method for forming a body comprising a particle structure fixated in a matrix material|
|WO2014086556A1||Nov 12, 2013||Jun 12, 2014||Sicpa Holding Sa||Oxidatively drying ink compositions|
|WO2014108303A1||Dec 20, 2013||Jul 17, 2014||Sicpa Holding Sa||Optical effect layers showing a viewing angle dependent optical effect, processes and devices for their production, items carrying an optical effect layer, and uses thereof|
|WO2015086257A1||Nov 14, 2014||Jun 18, 2015||Sicpa Holding Sa||Processes for producing effects layers|
|WO2016016028A1||Jul 20, 2015||Feb 4, 2016||Sicpa Holding Sa||Belt-driven processes for producing optical effect layers|
|WO2016026896A1||Aug 19, 2015||Feb 25, 2016||Sicpa Holding Sa||Apparatus and method for producing optical effect layers|
|International Classification||B05D3/14, B05D5/06, H01F13/00, H01F41/16, B44C1/00, H01F7/02|
|Cooperative Classification||B05D7/54, H01F13/003, B44C1/00, B05D5/061, H01F41/16, B05D3/20, H01F7/0247|
|European Classification||B05D3/20, H01F7/02B3, H01F13/00B, B44C1/00, H01F41/16, B05D5/06E|