Invention Grant
- Patent Title: Processes for producing effect layers
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Application No.: US17583989Application Date: 2022-01-25
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Publication No.: US11707764B2Publication Date: 2023-07-25
- Inventor: Neda Nikseresht Ghanepour , Evgeny Loginov , Mathieu Schmid , Claude-Alain Despland , Edgar Muller
- Applicant: SICPA HOLDING SA
- Applicant Address: CH Prilly
- Assignee: SICPA HOLDING SA
- Current Assignee: SICPA HOLDING SA
- Current Assignee Address: CH Prilly
- Agency: Muncy, Geissler, Olds & Lowe, P.C.
- Priority: EP 184326 2016.08.16
- Main IPC: B41M3/14
- IPC: B41M3/14 ; B05D3/00 ; B05D3/06 ; B42D25/369 ; C09D7/40 ; B44F1/08

Abstract:
The invention relates to the field of the protection of security documents such as for example banknotes and identity documents against counterfeit and illegal reproduction. In particular, the present invention provides processes for magnetically transferring one or more indicia into a not yet hardened coating layer made of a coating composition including platelet-shaped magnetic or magnetizable pigment particles so as to produce optical effect layers (OELs) as anti-counterfeit means on security documents or security articles or for decorative purposes.
Public/Granted literature
- US20220143649A1 PROCESSES FOR PRODUCING EFFECT LAYERS Public/Granted day:2022-05-12
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