Invention Grant
- Patent Title: Ink composition
- Patent Title (中): 墨水组成
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Application No.: US13069766Application Date: 2011-03-23
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Publication No.: US08496744B2Publication Date: 2013-07-30
- Inventor: Shigemi Wakabayashi , Kazuhiko Kitamura , Yasuhiro Oki , Motoki Masuda
- Applicant: Shigemi Wakabayashi , Kazuhiko Kitamura , Yasuhiro Oki , Motoki Masuda
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Nutter McClennen & Fish LLP
- Agent John J. Penny, V.
- Priority: JP2010-066849 20100323
- Main IPC: C09D11/02
- IPC: C09D11/02
Abstract:
An ink composition contains a particular anthrapyridone dye and a particular copper phthalocyanine dye. The hue angle in the L*a*b* color system calculated from spectral characteristics of a 1,000-fold diluted solution of the ink composition in water is 270° to 360°. The content of the anthrapyridone dye is higher than the content of the copper phthalocyanine dye.
Public/Granted literature
- US20110232526A1 INK COMPOSITION Public/Granted day:2011-09-29
Information query
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