| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a water-based ink or a water-based paint superior in initial dispersibility, long-term preservation stability and productivity, specially, a water-based ink superior in jetting characteristic and printing characteristic when it is made an inkjet recording pigment ink, by blending a carbon black dispersion containing a nonionic surfactant comprising a specified polyglycerin derivative. <P>SOLUTION: The nonionic surfactant has an HLB (hydrophile-lipophile balance) value within the range of 12-19, and is obtained by making polyglycerin having a polymerization degree of 4-10, a 2-4C alkylene oxide (added mole number: 30 to 150) react with a 14-24C saturated or unsaturated fatty acid having straight chains or branched chains, or aromatic carboxylic acid. <P>COPYRIGHT: (C)2008,JPO&INPIT |
