Sicpa Holding Sa

John Hoggett

Stéphane Chabrier

Stephane Chabrier

The present invention relates to the field of low energy radically curable inks for offset or letterpress printing of security documents. In particular, the invention relates to low energy radically curable offset or letterpress printing inks for offset or letterpress printing on a substrate or security document, said low energy radically curable inks having a viscosity in the range of about 2.5 to about 25 Pa s at 40&#xb0; C. and 1000 sand comprising radically curable (meth)acrylate compounds, one or more one or more photoinitiators of formula (I), one or more machine readable materials and one or more fillers and/or extenders. 

Low energy curing offset and letterpress printing inks and printing process

The present invention relates to the field of low energy radically curable inks for offset or letterpress printing of security documents. In particular, the invention relates to low energy radically curable offset or letterpress printing inks for offset or letterpress printing on a substrate or security document, said low energy radically curable inks having a viscosity in the range of about 2.5 to about 25 Pa s at 40&#xb0; C. and 1000 sand comprising radically curable (meth)acrylate compounds, one or more one or more photoinitiators of formula (I), one or machine readable materials and one or more fillers and/or extenders. 

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Thonon, France

John Hoggett