# US 2018/0021807 A1 · System and method for decorating metals with more than one color > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0021807 A1 - Document ID: US20180021807A1 - Status: Published application - Kind: A1 - Application number: 15/623,403 - Filed: 2017-06-15 - Published: 2018-01-25 - Earliest claimed: 2016-07-19 - Assignees: Univercol Paints Ltd - Applicants: Univercol Paints Ltd - Inventors: Israel MICHAL; Ran MANO; Assi HINDI; Michael BUCHMAN - Web page: https://patentgrep.com/patent/US20180021807A1 ## CPC - B05D 5/06: to obtain multicolour or other optical effects (B05D5/02 takes precedence) - B05D 1/06: Applying particulate materials - B05D 3/0263: {with IR heaters} - B05D 3/0406: {the gas being air} - B05D 3/067: {Curing or cross-linking the coating} - B05D 7/14: to metal, e.g. car bodies (involving a chemical reaction between the metal and the coating C23) - B05D 7/56: {Three layers or more} - C09D 11/101: Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing - C09D 11/52: Electrically conductive inks - B05D 5/065: {having colour interferences or colour shifts or opalescent looking, flip-flop, two tones} - B05D 2425/01: top layer/ last layer, i.e. first layer from the top surface - B05D 2451/00: Type of carrier, type of coating (Multilayers) - B05D 2701/00: Coatings being able to withstand changes in the shape of the substrate or to withstand welding - B41M 3/006: {Patterns of chemical products used for a specific purpose, e.g. pesticides, perfumes, adhesive patterns; use of microencapsulated material; Printing on smoking articles} - B41M 7/00: After-treatment of prints, e.g. heating, irradiating, {setting of the ink, protection of the printed stock (pre-treatment or treatment during printing B41M5/0011; printers for treating or overcoating copy materials before, during or after printing B41J11/0015)} - B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02) - C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D) - B41M: PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING, (correction of typographical errors B41J; processes for applying transfer pictures or the like B44C1/16; fluid media for correction of typographical errors by coating C09D10/00; printing textiles D06P) ## Abstract A method for applying a layer of a second color according to a predetermined pattern, on at least one face of a metal substrate, which is entirely painted with a first color comprising applying a primer according to a predetermined pattern onto at least one face of a metal substrate, applying thereto a UV curable powder coating comprising a second color that is different from the first color, removing excess of UV curable powder coating such that the UV curable powder coating remains only at a location on the metal substrate determined by the primer, activating IR and UV energy in order to cure the UV curable powder coating, and forming a metal substrate decorated with at least two colors according to the predetermined pattern on at least one face of the metal substrate, and a system for performing the same. ## Claims ### Claim 1 A method for applying a layer of a second color according to a predetermined pattern, on at least one face of a metal substrate, which is entirely painted with a first color said method comprising: (a) applying a primer according to a predetermined pattern onto at least one face of a metal substrate entirely painted with a first color; (b) applying thereto a UV curable powder coating comprising a second color, wherein said second color is different from said first color, (c) removing excess of UV curable powder coating such that the UV curable powder coating remains only at a location on the metal substrate determined by the primer, (d) activating IR and UV energy in order to cure the UV curable powder coating; and (e) forming a metal substrate decorated with at least two colors according to the predetermined pattern on the at least one face of the metal substrate. ### Claim 2 (depends on 1) The method according to claim 1, wherein said primer is selected from a group of primers consisting of: UV based primers, solvent based primers and thermal based primers. ### Claim 3 (depends on 1) The method according to claim 1, comprising, prior to applying the primer, entirely painting the metal substrate with a first color. ### Claim 4 (depends on 3) The method according to claim 3, wherein said step of entirely painting the metal substrate with a first color comprises applying an electrostatic thermal curing powder coating comprising the first color. ### Claim 5 (depends on 1) The method according to claim 1, wherein applying the primer is performed by digital printing. ### Claim 6 (depends on 1) The method according to claim 1, wherein removing excess of the UV powder is performed using air blowing. ### Claim 7 (depends on 1) The method according to claim 1, wherein said metal substrate is made of a metal selected from a group consisting of: aluminum, iron, copper, steel, stainless steel, and an alloy thereof. ### Claim 8 (depends on 1) The method according to claim 1, wherein steps (a)-(d) are repeated with at least one additional color, as determined by the predetermined pattern. ### Claim 9 A system for applying a layer of a second color according to a predetermined pattern, on at least one face of a metal substrate, which is entirely painted with a first colored layer, said system comprising: a device for applying a primer according to the predetermined pattern onto at least one face of a metal substrate entirely painted with a first color; an injecting gun for spraying UV curable powder coating onto the primer, wherein said UV curable powder coating comprises a second color; an air-gun for blowing air onto the UV curable powder for removing excess of UV powder such that the UV curable powder remains only at the location on the metal substrate determined by the primer; and an IR energy source and a UV energy source for curing the UV curable powder coating; whereby a metal substrate, decorated with at least two colors according to the predetermined pattern on at least one face of the metal substrate, is formed. ### Claim 10 (depends on 9) The system according to claim 9, wherein said device for applying a primer is a digital printer. ### Claim 11 (depends on 9) The system according to claim 9, wherein said primer is selected from a group of primers consisting of: UV based primers, solvent based primers and thermal based primers. ### Claim 12 (depends on 9) The system according to claim 9, further comprising an electrostatic gun for spraying the first color onto all faces of the metal substrate prior to applying the primer.