| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a water-based ink for inkjet recording, containing self-dispersion type pigment, and having excellent abrasion resistance. <P>SOLUTION: The water-based ink for the inkjet recording includes a coloring agent, water and a water-soluble organic solvent. The coloring agent includes the self-dispersion type pigment. The water-based ink further includes a phospholipid compound represented by chemical formula (1), and the formulated amount of the solid component of the phospholipid compound is 0.2-1.3 wt.% based on the whole amount of the water-based ink. In the chemical formula (1), R<SP>1</SP>and R<SP>5</SP>are each hydrogen or methyl, and R<SP>1</SP>and R<SP>5</SP>may be the same or different; R<SP>2</SP>, R<SP>3</SP>and R<SP>4</SP>are each hydrogen, 1-6C alkyl or hydroxyalkyl, and R<SP>2</SP>, R<SP>3</SP>and R<SP>4</SP>may be the same or different; p is an integer of 1-10; q is an integer of 1-4; R<SP>6</SP>is a hydrophobic group; and m and n are each a positive integer. <P>COPYRIGHT: (C)2011,JPO&INPIT |
