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    • 1. 发明公开
    • A method for numbering, QR coding and/or barcoding of banknotes using laser writing
    • US20240140126A1
    • 2024-05-02
    • US18279245
    • 2022-02-17
    • Gleitsmann Security Inks GmbH
    • Roland Gutmann
    • B42D25/41B41M3/14B42D25/378
    • B42D25/41B41M3/142B42D25/378
    • A method for continuously or semi-continuously numbering, QR coding and/or barcoding of banknotes comprises the following steps: i) providing a substrate in form of a sheet of (security) paper or of a sheet of (security) polymer foil or a (security) composite comprising at least one security paper layer and at least one security polymer foil, ii) printing onto each of the two surfaces of the substrate sheet each one or more printing ink layers so as to generate a plurality of banknotes on the substrate sheet, wherein each printing ink layer extends over a part or the whole of the surface area of the substrate sheet, and wherein the printing ink of at least one of the printing ink layers comprises at least one pigment and/or at least one dye, which changes its color upon exposition to laser radiation, iii) curing the printing ink layers, iv) exposing the printed and cured (dried) substrate sheet to laser radiation so as to create one or more features selected from the group consisting of individual numbers each comprising at least two numerals and optionally one or more characters, of individual QR codes, of individual barcodes and arbitrary combinations of two or more of the aforementioned features on each banknote of the printed substrate sheet, wherein all of the one or more individual (serial) numbers, of the one or more QR codes and of the one or more barcodes are generated by the exposure to the laser radiation, and v) cutting the printed substrate sheet obtained in step iv) to individual banknotes.
    • 4. 发明申请
    • ENERGY CURING INTAGLIO INK
    • WO2019052951A1
    • 2019-03-21
    • PCT/EP2018/074327
    • 2018-09-10
    • GLEITSMANN SECURITY INKS GMBH
    • BORGMANN, UrsulaMICHEEL, Jörg
    • C09D11/00C09D11/10C09D11/101C09D11/102
    • An energy curing intaglio ink comprising a binder and at least one photoinitiator to initiate the polymerization of the binder upon irradiation by electromagnetic radiation or electron beam radiation, wherein the binder comprises: a) at least one modified rosin having an acid number of at least 50 mg KOH/g, wherein the modified rosin is obtainable by reacting a mixture including rosin with at least one monounsaturated dicarboxylic acid and/or dicarboxylic acid anhydride and/or dicarboxylic half-ester selected from the group consisting of maleic acid, maleic acid anhydride, fumaric acid, fumaric acid anhydride, phthalic acid, phthalic acid anhydride, half-esters of the aforementioned acids and arbitrary combinations of two or more of the aforementioned substances and optionally a polyhydric alcohol, e.g. propylene glycol, b) at least one tri-functional or higher-functional aliphatic urethane acrylate oligomer having a weight average molecular weight of 800 to 5,000 g/mol and c) at least one polyester acrylate, which has a solubility of at most 60 g/l in a wiping solution consisting of 0.8% by weight of sodium hydroxide, 0.7% by weight of sulfated castor oil with a sulfatization degree of 75% and remainder to 100% by weight of distilled water.
    • 7. 发明申请
    • A METHOD FOR NUMBERING, QR CODING AND/OR BARCODING OF BANKNOTES USING LASER WRITING
    • WO2022184466A1
    • 2022-09-09
    • PCT/EP2022/054018
    • 2022-02-17
    • GLEITSMANN SECURITY INKS GMBH
    • GUTMANN, Roland
    • B42D25/41B42D25/378B41M3/14
    • A method for continuously or semi-continuously numbering, QR coding and/or barcoding of banknotes comprises the following steps: i) providing a substrate in form of a sheet of (security) paper or of a sheet of (security) polymer foil or a (security) composite comprising at least one security paper layer and at least one security polymer foil, ii) printing onto each of the two surfaces of the substrate sheet each one or more printing ink layers so as to generate a plurality of banknotes on the substrate sheet, wherein each printing ink layer extends over a part or the whole of the surface area of the substrate sheet, and wherein the printing ink of at least one of the printing ink layers comprises at least one pigment and/or at least one dye, which changes its color upon exposition to laser radiation, iii) curing the printing ink layers, iv) exposing the printed and cured (dried) substrate sheet to laser radiation so as to create one or more features selected from the group consisting of individual numbers each comprising at least two numerals and optionally one or more characters, of individual QR codes, of individual barcodes and arbitrary combinations of two or more of the aforementioned features on each banknote of the printed substrate sheet, wherein all of the one or more individual (serial) numbers, of the one or more QR codes and of the one or more barcodes are generated by the exposure to the laser radiation, and v) cutting the printed substrate sheet obtained in step iv) to individual banknotes.