Ink composition, ink set and inkjet recording method

Details Ink composition, ink set and inkjet recording method Ink composition, ink set and inkjet recording method

2011-05-31

2011-05-31

Wu, David (Department: 1762)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C523S161000, C106S031130, C347S100000

Reexamination Certificate

active

07951854

ABSTRACT:
An ink composition includes: first particles which are insoluble and dispersed in an aqueous dispersion medium, a polarity of the first particles being one of positive and negative; and second particles which are insoluble and dispersed in the aqueous dispersion medium, the second particles including both a cationic group and an anionic group, the second particles having a zeta potential that changes along with a change in pH of the aqueous dispersion medium, percentage of a water-soluble component in the second particles being not higher than 5% by mass.

REFERENCES:
patent: 2004/0244622 (2004-12-01), Ichinose et al.
patent: 2006/0057339 (2006-03-01), Adachi et al.
patent: 2003-082265 (2003-03-01), None
patent: 2004-115590 (2004-04-01), None
patent: 2004-338361 (2004-12-01), None
EP Communication issued Nov. 6, 2008, in corresponding EP Application No. 08010263.5, 4 pages.

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