| 摘要 |
Disclosed is a composition that is curable by cationic polymerization initiated by active energy beam, which is not affected by humidity of atmosphere and has superior curing property and superior adhesion property to a recording material, while being able to provide long storage stability without inhibiting curing property. Also disclosed is an image forming method using the composition, the method being able to provide a high quality image with no blur. Accordingly, the composition that is curable by cationic polymerization initiated by active energy beam, in which a cation polymerizing compound includes at least a cationic polymerization initiator, has a moisture content of 2.5 parts by mass or less, according to Karl Fisher method.
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