ACTINIC RADIATION CURABLE MAGENTA INK COMPOSITION, ACTINIC RADIATION CURABLE INK JET RECORDING MAGENTA INK AND METHOD FOR IMAGE FORMATION AND INK JET RECORDING APPARATUS USING SAID INK, AND ACTINIC RADIATION CURABLE PRINTING MAGENTA INK

摘要

An actinic radiation curable magenta ink composition containing a quinacridone series pigment, a dispersing agent, a photo-polymerizable compound and a photo-polymerization initiator, wherein a surface of a coated layer with the magenta ink composition on a porous medium exhibits a 60°-glossiness defined in JIS K 5600 in the range of 95 to 140, provided that the coated layer is formed by coating the magenta ink composition with a bar coater on the porous medium having a void ratio of 50 to 70% and a 60°-glossiness defined in JIS K 5600 of 30 or more, and then standing still for 30 minutes.