Digital printing of polymer-coated paper or board - Polymeeripinnoitteisen paperin tai kartongin digitaalipainatus

Jari Rasanen (Inventor), Johanna Lahti (Inventor), Antti Savolainen (Inventor), Jurkka Kuusipalo (Inventor)

Research output: PatentPatent


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  

AT465436 E20100515AT20050756356T20050616

CA2560766 AA20060921CA2005256076620050616

CA2560766 C20121002CA2005256076620050616


EP1756674 A120070228EP2005075635620050616

EP1756674 B120100421EP2005075635620050616

ES2340049 T320100528ES20050756356T20050616

FI116956 B20060413FI2004000084020040617

FI20040840 A20051218FI2004000084020040617

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.

Original languageEnglish
Patent numberEP1756674 B1
IPCG03G 7/ 00 A I
Priority date16/06/05
Publication statusPublished - 21 Apr 2010
MoE publication typeH1 Granted patent


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