公开(公告)号：US20240140126A1

公开(公告)日：2024-05-02

申请号：US18279245

申请日：2022-02-17

Applicant: Gleitsmann Security Inks GmbH

Inventor： Roland Gutmann

IPC: B42D25/41 ,  B41M3/14 ,  B42D25/378

CPC classification number: B42D25/41 ,  B41M3/142 ,  B42D25/378

Abstract: 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.

公开(公告)号：US11524516B2

公开(公告)日：2022-12-13

申请号：US16957919

申请日：2019-07-19

Applicant: Gleitsmann Security Inks GmbH

Inventor： Tobias Fischer ,  Roland Gutmann

IPC: B42D25/382 ,  B42D25/21 ,  B42D25/373 ,  B42D25/405 ,  G07D7/1205 ,  C09D11/037 ,  C09D11/50 ,  C09K11/00 ,  C09K11/08 ,  B42D25/23 ,  B42D25/24 ,  B42D25/25 ,  B42D25/26 ,  B42D25/29 ,  C08K3/11 ,  C08K5/56

Abstract: A security system, such as a banknote, comprises: i) a substrate, ii) a first ink, which is applied on at least a part of at least one surface of the substrate, wherein the first ink includes at least one IR luminescent dye and/or at least one IR luminescent pigment, and iii) a second non-luminescent ink, which is applied on at least a part of at least one surface of the substrate onto which the first ink is/are applied, wherein the second ink includes at least one non-luminescent IR absorbing pigment and/or a least one non-luminescent IR absorbing dye, wherein the first ink and the second ink at least partially overlap on the at least one surface of the substrate, wherein the second ink is applied in the overlapping area onto the first ink, and wherein the emission spectrum of the first ink and the absorption spectrum of the second ink at least partially overlap.

公开(公告)号：US20230383130A1

公开(公告)日：2023-11-30

申请号：US18028263

申请日：2021-08-30

Applicant: Gleitsmann Security Inks GmbH ,  Leuchtstoffwerk Breitungen GmbH

Inventor： Katharina Huth ,  Roland Gutmann ,  Frank Adrian Carl ,  Dominik Uhlich ,  Benedikt Daumann ,  Sylke Rösler ,  Thomas Bitzer

IPC: C09D11/037 ,  C09D11/50 ,  C09D5/22

CPC classification number: C09D11/037 ,  C09D11/50 ,  C09D5/22

Abstract: A security ink contains at least a first fluorescent and phosphorescent pigment and a second fluorescent pigment, wherein the security ink if excited with a first wavelength emits radiation with a first emission spectrum, if excited with a second wavelength emits radiation with a second emission spectrum being different from the first emission spectrum, and after the excitation has been terminated emits radiation with a third emission spectrum being different from the first emission spectrum and being different from the second emission spectrum.

公开(公告)号：US20200316982A1

公开(公告)日：2020-10-08

申请号：US16957919

申请日：2019-07-19

Applicant: GLEITSMANN SECURITY INKS GMBH

Inventor： Tobias Fischer ,  Roland GUTMANN

IPC: B42D25/382 ,  C09D11/50 ,  C09D11/037 ,  B42D25/21 ,  B42D25/373 ,  B42D25/405 ,  G07D7/1205

Abstract: A security system, such as a banknote, comprises: i) a substrate, ii) a first ink, which is applied on at least a part of at least one surface of the substrate, wherein the first ink includes at least one IR luminescent dye and/or at least one IR luminescent pigment, and iii) a second non-luminescent ink, which is applied on at least a part of at least one surface of the substrate onto which the first ink is/are applied, wherein the second ink includes at least one non-luminescent IR absorbing pigment and/or a least one non-luminescent IR absorbing dye, wherein the first ink and the second ink at least partially overlap on the at least one surface of the substrate, wherein the second ink is applied in the overlapping area onto the first ink, and wherein the emission spectrum of the first ink and the absorption spectrum of the second ink at least partially overlap.