ACTIVE ENERGY RAY-CURABLE INK, INK CARTRIDGE CONTAINING INK, IMAGE OR CURED PRODUCT FORMING METHOD, AND IMAGE OR CURED PRODUCT FORMING DEVICE
申请人:Yoshino Mie
公开号:US20150077481A1
公开(公告)日:2015-03-19
An active energy ray-curable ink which contains: polymerizable compounds containing a monofunctional polymerizable monomer a homopolymer of which has Tg of 90° C. or higher, wherein a cured product obtained by forming a coating film having an average thickness of 10 μm on a polycarbonate substrate using the ink, and 15 seconds later, and applying active energy rays having a light quantity of 1,500 mJ/cm
2
to the coating film to cure satisfies the following (1) and (2):
(1) a stretchability of the cured product represented by the following equation is 2 or greater, when the cured product is stretched by a tensile tester at a tensile speed of 20 mm/min, and temperature of 180° C., and
Stretchability=(length after tensile test)/(length before tensile test)
(2) adhesion between the substrate and the cured product as measured by a cross-cut test in accordance with JIS K5400 is 70 or greater.