MAGNETIC MACHINE-READABLE PAINTS FIXED IN OXIDATION, USED IN INTAGLIO PRINTING Russian patent published in 2020 - IPC B41M3/14 C09D11/03 C09D11/37 

Abstract RU 2720421 C2

FIELD: printing inks.

SUBSTANCE: invention relates to magnetic machine-readable paints fixed by oxidation suitable for process of intaglio printing of protected documents. Magnetic oxidation-fixed paint used in gravure printing on substrate, wherein said magnetic oxidation-fixed paint has a viscosity in the range of about 3 to about 60 Pa·s at 40 °C and 1000 s-1 and contains a) at least one oxidation-fixed lacquer, b) plurality of pigment core-cladding particles comprising a magnetic core and an outer layer made of silver, and c) one or more stabilizers selected from benzotriazole compounds.

EFFECT: disclosed are magnetic machine readable paints fixed in oxidation and used in intaglio printing.

14 cl, 4 tbl

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RU 2 720 421 C2

Authors

Krueger, Jessica

Pasquier, Cecile

Magnin, Patrick

Dates

2020-04-29Published

2017-01-26Filed