发明授权
- 专利标题: Inkjet recording liquid and process for the production thereof
- 专利标题(中): 喷墨记录液及其生产方法
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申请号: US09527702申请日: 1997-07-28
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公开(公告)号: US06235099B1公开(公告)日: 2001-05-22
- 发明人: Seiji Aida , Tsutomu Fujigamori , Hisashi Uraki , Ichiro Toyoda , Sunao Satake , Seiji Sawada , Yasuharu Iida
- 申请人: Seiji Aida , Tsutomu Fujigamori , Hisashi Uraki , Ichiro Toyoda , Sunao Satake , Seiji Sawada , Yasuharu Iida
- 优先权: JP7-11501 19950127; JP7-11502 19950127; JP7-11503 19950127; JP7-238161 19950918
- 主分类号: C09D1102
- IPC分类号: C09D1102
摘要:
A water-dispersed inkjet recording liquid excellent in water resistance and transparency and also excellent in the property of ejection from a nozzle, containing, as a colorant, a water-based dispersion of an organic pigment (A) which is at least one member selected from the group consisting of a quinacridone pigment, a benzimidazolone pigment, an insoluble azo pigment, a fuzed azo pigment, a quinophthalone pigment, a naphthol pigment, a perylene pigment and an isoindolinone pigment and has an average particle diameter of 10 to 150 nm (measured by laser scattering), the water-based dispersion of the organic pigment (A) being obtained by mechanically kneading a mixture containing at least three components of the organic pigment (A), a water-soluble inorganic salt (B) in an amount by weight at least three times as large as the amount of the organic pigment (A) and a water-soluble solvent (C) to finely mill the organic pigment (A), and then removing the water-soluble inorganic salt (B) and the water-soluble solvent (C) by washing the kneaded mixture with water, and a process for the production thereof.
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