| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an ink jet recording ink excellent in storage stability, water resistance and antimold properties. SOLUTION: This ink essentially consists of a colorant, a water-soluble organic solvent, water, 0.01-5.0wt.%, based on the total weight of the ink, acetylene glycol/alkylene oxide adduct represented by the formula (wherein R1 to R4 are each a lower alkyl; l is an integer of 2 or 3; and m and n are each an integer of 1 or greater), and 2-8wt.%, based on the total weight of the ink, polyethyleneimine.</p> |
