Fitzpatrick, Cella, Harper & Scinto
Print ink containing a plurality of fluorescent coloring materials and inkjet recording method
The present invention provides a fluorescence ink having a high fluorescence intensity, and an ink jet recording method using the same. The ink contains a first fluorescent coloring material that emits fluorescence at a predetermined fluorescence wavelength to be used for measurement or determination with excitation at a predetermined excitation wavelength, a second fluorescent coloring material that emits fluorescence on excitation at the predetermined excitation wavelength, where the excitation spectrum of the first coloring material in the ink to obtain the fluorescence at the predetermined emission wavelength has a peak wavelength range next to the predetermined fluorescence wavelength, and the emission fluorescence spectrum of the second coloring material has an emission wavelength region substantially including at least the above peak wavelength range.
Canon Kabushiki Kaisha
B C C
B41M C09D C09D
additional inventional inventional
Makoto Shinichi Akira Shoji Sadayuki Masako
Aoki Hakamada Nagashima Koike Sugama Udagawa