Title:
INK COMPOSITION, INKJET RECORDING METHOD USING THE SAME AND COLORED BODY
Document Type and Number:
Japanese Patent JP2018062668
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an ink composition stable even when stored for a long time at a high concentration state, extremely excellent in color tone of printed images, and providing black recorded images excellent in various fastness of printed images, especially light resistance and ozone gas resistance.SOLUTION: There is provided an ink composition containing (A) a dye represented by the following formula (1), and (B) a dye having maximum absorption wavelength (λmax) in an aqueous solvent of 340 nm or more and less than 440 nm, half value width of 150 nm or more and less than 300 nm and molecular weight of 150 or more and less than 1800. In the formula (I), R, R, R, Rand Rrepresent each independently a hydrogen atom, a sulfo group or the like, Rand Rrepresent each independently a hydrogen atom, a sulfo group or the like and n represents 0 or 1.SELECTED DRAWING: None
Inventors:
ONO DAISUKE
SHIRATORI YUMI
SHIRATORI YUMI
Application Number:
JP2017250402A
Publication Date:
April 19, 2018
Filing Date:
December 27, 2017
Export Citation:
Assignee:
NIPPON KAYAKU KK
International Classes:
C09D11/037; B41J2/01; B41M5/00; C09B33/26; C09B43/16; C09D11/322
Domestic Patent References:
| JP2013032469A | 2013-02-14 | |||
| JP2009185133A | 2009-08-20 |
Foreign References:
| WO2013035560A1 | 2013-03-14 | |||
| WO2006001274A1 | 2006-01-05 |