The invention relates to a method for digitally printing a polymer-coated paper or board ( 1 ), to a paper or board suitable for the method and to the production of a product package equipped with digital prints. During digital printing, printing ink particles are applied in an electric field to the printing surface formed of a polymer coating at locations corresponding to the print, and the printing ink is adhered to the printing surface by fusion with the aid of infrared radiation. In accordance with the invention, the paper or board ( 2 ) to be printed is equipped with an inner coating layer ( 3 ) containing electrically chargeable ethene acrylate copolymer, such as ethene methyl acrylate copolymer (EMA), and with a polyolefin-based outer shield layer ( 4 ) on top of this, which contains e.g. low-density polyethene (LDPE) and provides mechanical strength, forming the printing surface receiving the printing ink.
Patent family as of 4.5.2023
Publication numberPublication dateApplication numberApplication date
FI20040840 A0 20040617FI2004000084020040617
JP2008502930 T2 20080131JP20070515976T20050616
JP5112862 B2 20130109JP20070515976T20050616
US2007178285 AA 20070802US2005059264020050616
US7695772 BB 20100413US2005059264020050616
US2010159215 AA 20100624US2010071522420100301
US7989054 BB 20110802US2010071522420100301
WO05124469 A1 20051229WO2005FI0028220050616
Link to current patent family on right.
|Patent number||EP1756674 B1|
|IPC||G03G 7/ 00 A I|
|Publication status||Published - 21 Apr 2010|
|MoE publication type||H1 Granted patent|