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:
Feb. 06, 2007
Filed:
Jun. 09, 2004
Applicants:
Eisuke Hiraoka, Ebina, JP;
Toshitake Yui, Ebina, JP;
Ken Hashimoto, Ebina, JP;
Inventors:
Assignee:
Fuji Xerox Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/17 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides an ink set for ink jet recording comprising: an ink which contains: water; a colorant; a water-soluble organic solvent; polyvalent metal ions; and compound (A) which is intrinsically capable of substantially inactivating the polyvalent metal ions, and a liquid composition is of a pH in which the polyvalent metal ions in the ink can be substantially activated. The pH of the ink is within a range in which compound (A) keeps the polyvalent metal ions substantially in an inactive state. The invention also provides an ink jet recording method which uses such an ink set.