Black ink for inkjet recording and inkjet recording method

Details Black ink for inkjet recording and inkjet recording method Black ink for inkjet recording and inkjet recording method

2007-12-04

2007-12-04

Shah, Manish S. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S095000, C106S031460

Reexamination Certificate

active

10528772

ABSTRACT:
A black ink for inkjet recording having an aqueous medium containing a dye in which λmax of the absorption spectrum in an aqueous solution is in the region from 500 and 700 nm and the half-value width in the absorption spectrum of a dilute solution standardized to an absorbance of 1.0 is 100 nm or more. An object of the present invention is to provide an inkjet recording ink ensuring excellent discharge stability even after aging of the ink and also exhibiting excellent weather resistance.

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International Search Report for PCT/JP03/08375 dated Oct. 7, 2003.

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