公开(公告)号：US11148457B2

公开(公告)日：2021-10-19

申请号：US16606026

申请日：2018-04-17

Applicant: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH

Inventor： Johann Kecht

IPC: B42D25/382 ,  B42D25/24 ,  B42D25/29 ,  G07D7/1205 ,  C09K11/77 ,  G07D7/202

Abstract: A value document has a security marking in the form of two luminescent substances whose the emission spectra partially overlap in a primary emission range. The emission spectra have a degree of overlap of less than 80% and more than 5%, wherein the luminescent substances have different individual decay times in the primary emission range. The individual decay times of the luminescent substances differ from each other by more than 50% with reference to the shortest individual decay time.

公开(公告)号：US10988629B2

公开(公告)日：2021-04-27

申请号：US15773204

申请日：2016-11-09

Applicant: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH

Inventor： Johann Kecht ,  Axel Schlossbauer

IPC: B01J13/16 ,  B42D25/355 ,  C09B67/08 ,  C09D11/50 ,  C09D11/037 ,  C09K11/06 ,  B42D25/29 ,  B42D25/387 ,  G07D7/00 ,  G07D7/1205 ,  C09K9/02 ,  C09K11/02 ,  B42D25/382 ,  D21H21/30 ,  B42D25/30 ,  C09B67/02 ,  C09D11/54 ,  C09B67/22 ,  C08L61/28 ,  C08L61/30 ,  C08L61/34 ,  C08L61/12 ,  C08L61/06 ,  D21H21/40 ,  B42D25/373 ,  B42D25/378 ,  C08G12/34 ,  C08G14/10 ,  C08G8/24

Abstract: The invention relates to a security pigment, comprising core-shell particles having a core based on an organic addition polymer, a shell based on an organic condensation polymer and a feature substance present in the core in finely dispersed or dissolved form, wherein the addition polymer is a three-dimensionally cross-linked duromer.

公开(公告)号：US10953684B2

公开(公告)日：2021-03-23

申请号：US15774065

申请日：2016-11-09

Applicant: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH

Inventor： Johann Kecht ,  Axel Schlossbauer ,  Thomas Giering

IPC: B42D25/387 ,  C09K11/02 ,  C09D11/037 ,  C09D11/50 ,  C09B67/00 ,  B42D25/355 ,  C09K11/06 ,  C09B67/08 ,  C09B67/22 ,  C09B67/02 ,  G07D7/00 ,  G07D7/1205 ,  D21H21/30 ,  C08L75/02 ,  C08L61/28 ,  C08L33/12 ,  C08K3/013 ,  C08K5/00 ,  C08G18/38 ,  C08G18/75 ,  C08G18/79 ,  D21H21/40 ,  B42D25/373 ,  B42D25/29

Abstract: A pigment system of different capsule-luminescent pigments have different emission spectra, preferably different color impressions of the luminescence emission, and possess substantially the same chemical stabilities. The capsule-luminescent pigments are based on organic or metalorganic luminescent substances.

公开(公告)号：US12194772B2

公开(公告)日：2025-01-14

申请号：US17275481

申请日：2019-09-10

Applicant: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH

Inventor： Johann Kecht

IPC: G01N21/956 ,  B42D25/382 ,  G01N21/64 ,  G07D7/1205 ,  B42D25/29 ,  G07D7/121

Abstract: A value document system, a method for identifying a value document of a value document system, and a luminescent substance set, wherein the value document system includes at least a first value document and a second value document. The first value document has a security feature composed of a combination of at least a first and a second luminescent substance of a first or a second substance class. The second value document has a security feature with at least a first luminescent substance of the first or second substance class. The security feature of the first value document has at least a different intensity ratio of the emission, a different decay time ratio and/or a different decay time sum in two adjacent spectral ranges compared with the security feature of the second value document.

公开(公告)号：US10657750B2

公开(公告)日：2020-05-19

申请号：US16397454

申请日：2019-04-29

Applicant: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH

Inventor： Martin Clara ,  Thomas Giering ,  Johann Kecht ,  Wolfgang Rauscher ,  Martin Stark ,  Thomas Happ

IPC: G07D7/1205 ,  G01N21/65

Abstract: The invention relates to an apparatus and a method for checking value documents marked with feature substances, and to the corresponding feature substances. The feature substances are detected on the basis of Raman or SERS spectroscopy also at high transport speeds with a spatial resolution in the low millimeter region or better and reliably identified.

公开(公告)号：US10576773B2

公开(公告)日：2020-03-03

申请号：US16326992

申请日：2017-08-22

Applicant: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH

Inventor： Johann Kecht ,  Axel Schlossbauer ,  Stephan Steinlein

IPC: B42D25/36 ,  B42D15/00 ,  B42D25/369 ,  B42D25/382 ,  B42D25/387 ,  B42D25/45 ,  B42D25/475 ,  B42D25/455 ,  B42D25/46

Abstract: A security element for securing value documents comprises a first polymer containing a feature substance, which is at least partially surrounded by a second polymer, wherein the first polymer is a hydrophobic, water-insoluble polymer which, at an elevated pH value and at elevated ambient temperature at a treatment duration of less than 60 minutes can be converted into a hydrophilic, water-soluble polymer. The security elements also contains a second polymer, which is a hydrophilic, water-soluble polymer, wherein the elevated pH value is greater than 12 and the elevated ambient temperature is greater than 90° C.

公开(公告)号：US10479123B1

公开(公告)日：2019-11-19

申请号：US16319570

申请日：2017-07-19

Applicant: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH

Inventor： Johann Kecht

IPC: B41M3/14 ,  C09K11/02 ,  B42D25/29 ,  B42D25/355 ,  B42D25/382 ,  C09K11/08 ,  G06K19/14 ,  D21H21/30 ,  C09D11/02 ,  C09C3/06 ,  D21H21/48

Abstract: The invention relates to a security feature for securing value documents, comprising a chemically unstable inorganic feature substance and a stabilizing component that comprises a substance that stabilizes the feature substance, which substance has at least the same solubility in water as the feature substance to be protected and releases ions when said substance is decomposed, which ions conform to the ions of the feature substance at least in part.

公开(公告)号：US11148447B2

公开(公告)日：2021-10-19

申请号：US16611557

申请日：2018-05-07

Applicant: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH

Inventor： Johann Kecht ,  Stephan Steinlein ,  Thomas Giering

IPC: B41M1/10 ,  B42D25/29 ,  B42D25/382 ,  B42D25/387 ,  B41M3/14 ,  C09D11/037 ,  C09D11/50

Abstract: An intaglio printing ink includes capsule luminescent pigments and a further machine-readable feature substance. The capsule luminescent pigments include at least one core with a luminescent substance and one shell encapsulating the at least one core. They are characterized by their high luminescence intensity and high chemical stability, which enables a simultaneous loading of the intaglio printing ink with a further machine-readable feature. A printing method and a printed product include the intaglio printing ink.

公开(公告)号：US10995231B2

公开(公告)日：2021-05-04

申请号：US15773240

申请日：2016-11-09

Applicant: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH

Inventor： Johann Kecht ,  Axel Schlossbauer

IPC: C09D11/50 ,  C09K11/06 ,  B42D25/29 ,  B42D25/382 ,  B42D25/387 ,  B42D25/00 ,  B42D25/30 ,  B32B27/30 ,  B42D25/36 ,  C09B67/02 ,  C09K11/02 ,  D21H21/40 ,  C09B67/46 ,  B42D25/373 ,  B42D25/378 ,  B01J13/04 ,  C09B67/04 ,  C09D11/037 ,  C09K9/02 ,  C08L33/12 ,  B42D25/355 ,  G07D7/1205 ,  G07D7/00

Abstract: The invention relates to a pigment particle for security applications, comprising a duromer matrix and a plurality of core particles of a thermoplastic polymer with a feature substance dissolved in the core particles embedded therein, wherein the feature substance is an organic or metalorganic substance. The invention further relates to a method for producing security pigments, for example luminescent printing pigments, by means of incorporation into a duromer matrix of thermoplastic polymer particles in which the luminescent illuminant is present respectively in dissolved form.

公开(公告)号：US10821766B2

公开(公告)日：2020-11-03

申请号：US15773869

申请日：2016-11-09

Applicant: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH

Inventor： Johann Kecht ,  Axel Schlossbauer

IPC: B42D25/382 ,  C09D11/037 ,  C09D11/103 ,  C09D11/107 ,  C09D11/50 ,  C08L61/28 ,  C09B67/08 ,  C09B67/02 ,  C08L25/06 ,  C08L33/12 ,  B42D25/387 ,  C08L61/30 ,  C09B67/00 ,  C09K11/06 ,  C08L61/06 ,  C08L61/24 ,  C09D11/10 ,  C08L61/12 ,  C08L61/34 ,  C09D11/106 ,  C08K3/013 ,  C08K5/00 ,  B42D25/378

Abstract: The invention relates to a security pigment of core-shell particles with an organic or metalorganic feature substance, in particular luminescent feature substance, present in dissolved or finely distributed form in the core. The invention further relates to a method for producing the core-shell particles and value documents having the core-shell particles.