发明名称 Pigment dispersion, recording ink, ink cartridge, ink-jet recording method and ink-jet recording apparatus
摘要 A recording ink containing a pigment dispersion, a surfactant, a water-dispersible resin, a humectant and water. The pigment dispersion contains a pigment dispersant, which is an anionic surfactant or a nonionic surfactant having an HLB value of 10 to 20. The pigment dispersion also contains a polymer dispersion stabilizer, which is an alpha-olefin/maleic anhydride copolymer expressed by the formula (1) below, where R is an alkyl group having 6 to 25 carbon atoms, and where the mass average molecular weight of the copolymer is 5000 to 20000. An ink cartridge, an inkjet recording method, an inkjet recording apparatus, and an ink recorded matter, each employing the recording ink, are also provided.
申请公布号 US8383700(B2) 申请公布日期 2013.02.26
申请号 US201213533813 申请日期 2012.06.26
申请人 RICOH COMPANY, LTD.;GOTO HIROSHI;MATSUYAMA AKIHIKO;NAGAI KIYOFUMI 发明人 GOTO HIROSHI;MATSUYAMA AKIHIKO;NAGAI KIYOFUMI
分类号 C09D11/10;C08L35/00 主分类号 C09D11/10
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