C - Chemistry – Metallurgy – 09 – C
Patent
C - Chemistry, Metallurgy
09
C
C09C 1/00 (2006.01) C09D 11/00 (2006.01)
Patent
CA 2312155
This invention relates to an ink composition comprising two different types of optically variable pigments having a viewing angle dependent shift of colour.
L'invention concerne une composition d'encre comprenant deux types de pigments pouvant varier sur le plan optique et dont le décalage de couleur dépend de l'angle de vision.
Bleikolm Anton
Muller Edgar
Rozumek Olivier
Mcfadden Fincham
Sicpa Holding S.a.
Sicpa Holding Sa
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