Inkjet black ink

Details Inkjet black ink Inkjet black ink

2007-05-01

2007-05-01

Klemanski, Helene (Department: 1755)

Compositions: coating or plastic

Coating or plastic compositions

Marking

C106S031490, C106S031500, C106S031520

Reexamination Certificate

active

10714945

ABSTRACT:
The invention provides an inkjet black ink ensuring excellent image durability capable of satisfactorily maintaining the image quality such as non-loosening of black and gradation even when the image is stored for a long period of time, which is a inkjet black ink having a discoloration rate constant (kvis) of 5.0×10−2[hour−1] or less, which is measured by using an ozone gas, the ink comprising an aqueous medium having dissolved or dispersed therein at least one dye selected from (1) an azo dye having a specific structure where a heterocyclic group is bonded to both of two N atoms, (2) a phthalocyanine dye having a specific structure, (3) an azo dye having a specific structure where a 5-membered heterocyclic group is bonded to one of two N atoms and a 6-membered 2-amino heterocyclic group is bonded to the other, and (4) a bisazo dye constituted by a specific aromatic or heterocyclic group and an azo group.

REFERENCES:
patent: 6548649 (2003-04-01), Mikoshiba et al.
patent: 7029523 (2006-04-01), Taguchi et al.
patent: 7037365 (2006-05-01), Taguchi et al.
patent: 7048790 (2006-05-01), Taguchi et al.
patent: 2004/0053988 (2004-03-01), Taguchi et al.
patent: 2004/0070654 (2004-04-01), Taguchi et al.
patent: 2004/0080596 (2004-04-01), Taguchi et al.
patent: 2004/0094064 (2004-05-01), Taguchi et al.
patent: 2004/0187738 (2004-09-01), Taguchi et al.

Affiliated with

Also associated with

Rating

Inkjet black ink does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Inkjet black ink, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inkjet black ink will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3799719