发明名称 INK FOR INKJET, INK CARTRIDGE, AND RECORDED MATTER
摘要 PROBLEM TO BE SOLVED: To provide an ink for inkjet, which is excellent in storage stability and discharge stability and hardly causes curling when printed on paper.SOLUTION: An ink for inkjet includes a pigment, water, a dispersing agent represented by structural formula (1) and an water soluble organic solvent selected from 3-ethyl-3-hydroxymethyloxetane, isopropylidene glycerol or a specific amide compound. In the formula (1), M is any of Li, Na, K, ammonium, and methanol amine, p, q and r are each a natural number of 5 to 50, further, Rhas a specific polysiloxane structure, Ris any of hydroxyl group, methoxy group, and ethoxy group, Ris any of methyl group, ethyl group, hexyl group, hydroxymethyl group and hydroxyethyl group, and m is a natural number of 1 to 10.
申请公布号 JP2013185109(A) 申请公布日期 2013.09.19
申请号 JP20120052232 申请日期 2012.03.08
申请人 RICOH CO LTD 发明人 MATSUYAMA AKIHIKO;GOTO HIROSHI
分类号 C09D11/00;B41J2/01;B41M5/00 主分类号 C09D11/00
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