# US 2020/0399953 A1 · Method for producing a printed, coated panel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0399953 A1 - Document ID: US20200399953A1 - Status: Published application - Kind: A1 - Application number: 16/767,906 - Filed: 2018-11-09 - Published: 2020-12-24 - Earliest claimed: 2017-11-30 - Assignees: Saint-Gobain Glass France - Applicants: Saint-Gobain Glass France - Inventors: Hans-Werner KUSTER; Sebastian JANZYK; Li-Ya YEH; Stephane AUVRAY - Web page: https://patentgrep.com/patent/US20200399953A1 ## CPC - C03B 27/012: by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling (C03B27/008, C03B27/016 take precedence) - C03C 17/002: {for flat glass, e.g. float glass} - C03C 17/22: with other inorganic material (C03C17/34, C03C17/44 take precedence) - C03C 17/3644: {the metal being silver} - C03C 17/366: {Low-emissivity or solar control coatings} - C03C 17/3681: {the multilayer coating being used in glazing, e.g. windows or windscreens} - C03C 17/38: at least one coating being a coating of an organic material - C03C 2217/213: SiO2 - C03C 2217/78: Coatings specially designed to be durable, e.g. scratch-resistant - C03C 2218/118: by roller-coating - C03C 2218/119: by printing - C03C 2218/31: Pre-treatment - C03C 2218/328: Partly or completely removing a coating - C03C 2218/355: Temporary coating - C03B: MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES - C03C: CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS ## Abstract A method for producing a coated and printed glass panel, includes a) providing a glass substrate having a metal-containing coating on a first surface and a polymeric protective layer with a thickness d arranged on this metal-containing coating, b) removing the polymeric protective layer in a first region using a carbon dioxide laser, c) removing the metal-containing coating within the first region only in a second region using a solid-state laser such that an edge region is created, in which the metal-containing coating is intact and in which the polymeric protective layer was removed in step b), d) applying a ceramic ink only in the first region, e) heat treating the glass panel at >600° C., wherein the polymeric protective layer is removed on the entire first surface, in the edge region, the metal-containing coating is dissolved by the ceramic ink lying above it, and the ceramic ink is fired. ## Claims ### Claim 1 A method for producing a coated and printed glass panel, comprising the steps a) providing a glass substrate having a metal-containing coating on at least one first surface and a polymeric protective layer with a thickness d arranged on said metal-containing coating, b) removing the polymeric protective layer in a first region using a carbon dioxide laser, c) removing the metal-containing coating within the first region only in a second region using a solid-state laser such that an edge region is created, in which the metal-containing coating is intact and in which the polymeric protective layer was removed in step b), d) applying a ceramic ink only in the first region, e) performing a temperature treatment of the glass panel at >600° C., wherein the polymeric protective layer is removed on the entire first surface, and the ceramic ink in the edge region migrates into the metal-containing coating and bonds with the first surface of the glass panel. ### Claim 2 (depends on 1) The method according to claim 1, wherein in step d), the ceramic ink is applied in the edge region at a distance s of at least 0.5 mm from the remaining polymeric protective layer. ### Claim 3 (depends on 1) The method according to claim 1, wherein the polymeric protective layer is not water-soluble and is produced from a composition that contains meth(acrylates). ### Claim 4 (depends on 1) The method according to claim 1, wherein the polymeric protective layer has a thickness d of 1 μm to 30 μm. ### Claim 5 (depends on 1) The method according to claim 1, wherein after step b), the thickness of the polymeric protective layer in the edge region dRand is less than 1 μm. ### Claim 6 (depends on 1) The method according to claim 1, wherein the glass panel is thermally toughened during the temperature treatment. ### Claim 7 (depends on 1) The method according to claim 1, wherein the ceramic ink is applied with a roll coater or a digital printer. ### Claim 8 (depends on 1) The method according to claim 1, wherein the first region is subjected to plasma cleaning before the application of the ceramic ink. ### Claim 9 (depends on 1) The method according to claim 1, wherein the region with the metal-containing coating and the polymeric protective layer has emissivity ε greater than 40%. ### Claim 10 (depends on 1) The method according to claim 1, wherein the application of the ceramic ink is done in the first region under camera control, wherein the camera detects a difference between the de-coated second region and the region provided with the polymeric protective layer of the thickness d. ### Claim 11 (depends on 1) The method according to claim 1, wherein the glass panel is between 1 m2 and 54 m2 in size. ### Claim 12 (depends on 1) The method according to claim 1, wherein the first region extends along at least one edge of the glass panel and, measured from the panel edge, has a width b between 0.5 cm and 30 cm. ### Claim 13 (depends on 1) The method according to claim 1, wherein the metal-containing coating has an IR-reflecting function and contains at least two silver-containing layers as well as at least three dielectric layers. ### Claim 14 (depends on 1) A method comprising utilizing the glass panel produced in a method according to claim 1 as building glazing indoors or outdoors. ### Claim 15 (depends on 4) The method according to claim 4, wherein the thickness d is from 15 μm to 20 μm. ### Claim 16 (depends on 5) The method according to claim 5, wherein after step b), the thickness of the polymeric protective layer in the edge region dRand is less than 0.5 μm. ### Claim 17 (depends on 6) The method according to claim 6, wherein the thermally toughened glass panel is a single-pane safety glass or a partially toughened glass. ### Claim 18 (depends on 9) The method according to claim 9, wherein the emissivity c is greater than 45%. ### Claim 19 (depends on 11) The method according to claim 11, wherein the glass panel is between 10 m2 and 30 m2 in size. ### Claim 20 (depends on 12) The method according to claim 12, wherein the width b is between 1 cm and 20 cm.