B - Operations – Transporting – 41 – M
Patent
B - Operations, Transporting
41
M
B41M 1/10 (2006.01) B42D 15/00 (2006.01) C09D 11/00 (2006.01)
Patent
CA 2647225
The invention relates to thermochromic ink for intaglio printing. Said ink is characterised in that it comprises a microencapsulated three-component mixture consisting of at least one electron donor, at least one electron acceptor and at least one solvent.
L'invention concerne une encre d'imprimerie thermochrome destinée à l'héliogravure, caractérisée en ce qu'elle contient un mélange à trois composants microencapsulé composé d'au moins un donneur d'électrons, d'au moins un accepteur d'électrons et d'au moins un solvant.
Langer Joerg
Mengel Christioph
Woerlein Edith
Giesecke & Devrient Gmbh
R. William Wray & Associates
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