Patent ID: 9120941
Filing Date: 2015-09-01
Classification: B41M,C09D

Abstract:
1. An ultraviolet-curable ink composition for ink jet for use in an ink jet recording method including irradiating the ultraviolet-curable ink composition for ink jet applied to a substrate with ultraviolet radiation having a peak wavelength in a range of 380 to 405 nm from a semiconductor light source to obtain a cured coating, a product of light transmissivity (%) of the cured coating at a wavelength of 395 nm and irradiation energy of the ultraviolet radiation (mJ/cm 2 ) being 2.0 or more, the ink composition comprising: a thioxanthone-based photopolymerization initiator and at least one of yellow coloring material and black coloring material, an OD of the cured coating made from the ink composition being 1.8 or more.