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:
Dec. 24, 2013
Filed:
Aug. 20, 2008
Hiroyuki Yoshida, Wakayama, JP;
Takahiro Sato, Wakayama, JP;
Masayuki Narita, Wakayama, JP;
Kao Corporation, Tokyo, JP;
Abstract
The present invention relates to (1) a water-based ink for ink-jet printing having excellent storage stability and anti-curling property which includes particles of a crosslinked water-insoluble polymer containing a colorant wherein a content of water in the ink is 60% by weight or less, and the crosslinked polymer contains an anionic group neutralized with a base in an amount of from 0.5 mmol or more per 1 g of the crosslinked polymer; (2) a process for producing the water-based ink; and (3) a method of reducing curling of a print wherein the print is obtained by printing characters or images thereon with the water-based ink using an ink-jet printer.