Materials coated with plate-like pigments and characterized in that the coating shows structuring in defined areas due to a difference in the orientation of the pigment particles are highly suitable in the area of general security printing.
申请公布号
EP0428933(B1)
申请公布日期
1996.09.11
申请号
EP19900121161
申请日期
1990.11.06
申请人
MERCK PATENT GMBH
发明人
PRENGEL, CONSTANZE, DR.;FRANZ, KLAUS-DIETER, DR.;HAERTNER, HARTMUT, DR.;KIESER, MANFRED, DR.;DAACKE, AXEL V., DR.;BERNHARDT, KLAUS
