发明名称 INK FOR INKJET RECORDING AND RECORDING METHOD
摘要 PROBLEM TO BE SOLVED: To provide a pigment-based inkjet recording liquid always exhibiting good intermittent ejecting and jetting stability even in a low humidity environment, capable of easily recovering a normal jetting state even after being left without a nozzle cap, and having excellent plugging resistance, and further to provide an inkjet recording method improved by adding a pigment having a specified hydrophilic degree and a specific water-soluble organic solvent to the ink. SOLUTION: A water-based ink for inkjet consists essentially of water, the water-soluble organic solvent and the pigment. The water-soluble organic solvent has volatility lower than that of the water, and the ink includes a pigment dispersoid having the hydrophilic degree &delta;m measured by an acetone titration method, and regulated within the range of 14.5<=&delta;m<=17.3.
申请公布号 JP2003147243(A) 申请公布日期 2003.05.21
申请号 JP20010349307 申请日期 2001.11.14
申请人 RICOH CO LTD 发明人 TOKUNO TOSHIRO;GOTO AKIHIKO
分类号 B41J2/01;B41J2/015;B41J2/06;B41M5/00;C09D11/00;C09D11/322;C09D11/326;C09D11/38 主分类号 B41J2/01
代理机构 代理人
主权项
地址