Use of interference pigments in the manufacture of...

Details Use of interference pigments in the manufacture of... Use of interference pigments in the manufacture of...

C - Chemistry, Metallurgy

09

D

C09D 11/00 (2006.01) B41M 3/14 (2006.01) C09C 1/00 (2006.01) G07D 7/00 (2006.01)

Patent

CA 2143940

Interference pigments based on multiply coated plateletlike silicatic substrates comprising A) a first layer comprising a colorless or selectively absorbing metal oxide with a high refractive index, B) a second, non-selectively absorbing, semitransparent layer consisting essentially of carbon, a metal or a metal oxide, and optionally C) a third layer comprising a colorless or selectively absorbing metal oxide in combination with scattering color pigments which are complementary in color to the reflection color of the interference pigments are useful for preparing valuable documents that are forgeryproof.

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