| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain ink for inkjet recording making printing quality of ink used for inkjet recording compatible with the storage stability and having deep color concentration regardless of low concentration of a coloring agent, having high disperse stability, not causing bleeding even in a regenerated paper sheet, namely having a high response ratio to papers. <P>SOLUTION: In this ink, carbon black having ≥5 roughness and high blackness is used and an anionic resin dispersing agent is adopted as a dispersing agent for dispersing the carbon black and the addition amount of the dispersing agent is limited to 10-40 pts.wt., preferably 10-25 pts.wt., based on the amount of the carbon black. <P>COPYRIGHT: (C)2003,JPO |
