The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2012
Filed:
Feb. 28, 2011
Yasuhiro Doi, Wakayama, JP;
Yasushi Ito, Wakayama, JP;
Nobuyuki Takizawa, Wakayama, JP;
Shigeki Nagashima, Wakayama, JP;
Yasuhiro Doi, Wakayama, JP;
Yasushi Ito, Wakayama, JP;
Nobuyuki Takizawa, Wakayama, JP;
Shigeki Nagashima, Wakayama, JP;
Kao Corporation, Tokyo, JP;
Abstract
The present invention relates to a water-based ink for ink-jet printing which not only satisfies a high optical density but also exhibits an excellent high lighter-fastness; a water dispersion used for the water-based ink; and a method for producing a print using the water-based ink. There are provided a water dispersion for ink-jet printing comprising (i) (A-1) polymer particles containing a colorant, (B) polymer particles and (C) the water-insoluble organic compound, or (ii) (A-2) self-dispersible pigment, (B) polymer particles and (C) the water-insoluble organic compound; a water-based ink containing the water dispersion; and a method for producing a print using the water-based ink.