Ink composition, ink cartridge, inkjet recording device, and inkjet printed matter
US9359522B2 · kind B2 · utility
5Cited by
0References
12Claims
0Family size
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Key dates
| Filing date | Aug 20, 2014 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | Aug 20, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24802
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An ink composition contains a pigment; a copolymer containing a phosphoric acid group or phosphonic acid group; a hydrosoluble solvent; and water, wherein the pigment is represented by the following chemical formula 1 and satisfies the following relation 1: Y<X<0.8, where X represents a peak intensity at a Bragg (2θ±0.2°) angle in a range of 2θ of from 5.5° to 6.0° and Y represents a peak intensity at a Bragg (2θ±0.2°) angle in a range of 2θ of from 26.5° to 27.5° to a CuKα X-ray having a wavelength of 1.541 Å.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.