| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an active energy beam-curing type ink having a good workability and productivity without containing solvent, excellent in waterproof property, heat resistance and solvent resistance, also excellent in character quality, without developing color mixing, and capable of stably recording a highly fine image in a good reproducibility. <P>SOLUTION: This active energy beam-curing type ink is constituted of a photopolymerizable compound, photo initiator and pigment. The photopolymerizable compound is a 3,4,3',4'-diepoxybicyclohexyl compound expressed by formula (1) [wherein, R<SP>1</SP>to R<SP>18</SP>are each H, a halogen atom, an oxygen atom or a hydrocarbon group which may have the halogen atom, or an alkoxy group which may have a substituent], and has ≤20% content of the isomer of the above compound. <P>COPYRIGHT: (C)2008,JPO&INPIT |
