FIELD: printing.
SUBSTANCE: present invention relates to the field of radically curable inks with low energy consumption for offset or letterpress printing of protected documents. In particular, the present invention relates to low energy consumption radically curable offset or letterpress inks for offset or letterpress printing on a substrate or protected document, the specified low energy radically curable inks having a viscosity in the range of about 2, 5 to approximately 25 Pa•s at 40°C and 1000 с-1 and contain radically curable (meth) acrylate compounds, one or more photoinitiators of Formula (I), one or more machine-readable materials and one or more fillers and/or dry diluents.
EFFECT: low energy consumption, good surface curing and good through-curing properties after curing the specified paints with a radiation wavelength of 280-400 nm.
10 cl, 5 tbl
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