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1. (WO2018104213) LOW ENERGY CURING OFFSET AND LETTERPRESS PRINTING INKS AND PRINTING PROCESS

Pub. No.:    WO/2018/104213    International Application No.:    PCT/EP2017/081342
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Tue Dec 05 00:59:59 CET 2017
IPC: B41M 3/14
C09D 11/02
C09D 11/101
C09D 11/107
Applicants: SICPA HOLDING SA
Inventors: HOGGETT, John
CHABRIER, Stéphane
Title: LOW ENERGY CURING OFFSET AND LETTERPRESS PRINTING INKS AND PRINTING PROCESS
Abstract:
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°C and 1000 s-1 and 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.