| 摘要 |
An ink composition is provided to suppress the formation of bubble within ink generated in the operation of a printer for an ink jet and to ensure stable initial discharge performance due to smooth ink mobility. An ink composition comprises a cyclic silazane compound indicated as the chemical formula 1, a coloring agent and solvent. In the chemical formula 1, R1-R5 are independently hydrogen, substituted or unsubstituted C1-20 alkyl group, substituted or unsubstituted C1-20 heteroalkyl group, substituted or unsubstituted C2-20 arkenyl group, substituted or unsubstituted C1-20 alkoxy group, substituted or unsubstituted C1-20 hetero alkoxy group, substituted or unsubstituted C1-20 alkylsulfone amide group, and substituted or unsubstituted C6-20 arylsulfone amide group; and Z shows -(CH2)m- group, wherein m is an integer of 1-10.
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