Title:
METHOD FOR CHECKING A SECURITY FEATURE IN A SEMI-FINISHED PRODUCT
Document Type and Number:
WIPO Patent Application WO/2021/001346
Kind Code:
A1
Abstract:
The invention relates to a method for checking a security feature (12) in a semi-finished product (12), which consists of at least one paper layer, which has the at least one security feature (23) in a test field (24), wherein, after production and output of the produced semi-finished product (12) from a production machine (14) or before processing of the semi-finished product (12) in a cutting machine (27) or in a printing or laminating machine (32), an excitation radiation is directed to a test field (24) of the semi-finished product (12) provided with the security field (23), wherein an emitted radiation of the security feature (23) of the semi-finished product (12) is detected by a detection device (36), wherein parameters are determined from the emitted radiation by a data processing device (18) and compared to parameters, stored in the data processing device (18), of the originally produced security feature (23) in the test field (24), and wherein the evaluation of the detected parameters together with the stored parameters is output in real time before the start of a subsequent work step of the semi-finished product (12) in order to produce the value or security document.
Inventors:
SCHOCHER STEFFEN (DE)
GRIESER RALF (DE)
ANTONIUS MIKE (DE)
GRIESER RALF (DE)
ANTONIUS MIKE (DE)
Application Number:
PCT/EP2020/068351
Publication Date:
January 07, 2021
Filing Date:
June 30, 2020
Export Citation:
Assignee:
BUNDESDRUCKEREI GMBH (DE)
International Classes:
B42D25/378; B42D25/387; B42D25/40
Foreign References:
| US20030112423A1 | 2003-06-19 | |||
| US20030112423A1 | 2003-06-19 | |||
| DE602004005678T2 | 2007-12-27 |
Attorney, Agent or Firm:
PATENTANWÄLTE MAMMEL UND MASER (DE)
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