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:
Nov. 09, 2021
Filed:
Aug. 24, 2017
Kao Corporation, Tokyo, JP;
Teruyuki Fukuda, Wakayama, JP;
Satoshi Kunii, Wakayama, JP;
Satoshi Tanaka, Wakayama, JP;
Yuki Suzuki, Wakayama, JP;
KAO CORPORATION, Tokyo, JP;
Abstract
The present invention relates to a liquid composition for ink-jet printing which is capable of forming a protective film on a liquid ejection head of an ink-jet type to enhance insulating properties for the liquid ejection head, an image-forming method, a method of forming the protective film, a storing method, and a use of the liquid composition. The present invention provides [1] a liquid composition for ink-jet printing which contains not less than 0.01% by mass and not more than 1.50% by mass of a compound represented by the following formula (1) or a salt thereof, not less than 0.05% by mass and not more than 35% by mass of a compound represented by the following formula (2), and water, [2] an ink-jet image-forming method including the step of ejecting the liquid composition for ink-jet printing according to the above [1] from a liquid ejection head of an ink-jet type including an ejection energy-generating element to form characters or images, [3] a method of forming a protective film on a liquid ejection head of an ink-jet type including an ejection energy-generating element, including the step of applying a voltage to the ejection energy-generating element under such a condition that the ejection energy-generating element is allowed to contact with the liquid composition according to the above [1], [4] a method of storing a liquid ejection head of an ink-jet type including an ejection energy-generating element, including the steps of applying a voltage to the ejection energy-generating element under such a condition that the ejection energy-generating element is allowed to contact with the liquid composition according to the above [1], and filling the liquid ejection head with an ink after the step of applying a voltage, and [5] a use of the liquid composition according to the above [1], as a filling liquid or an ink;R—O-(AO)(CHCHO)—B—COOH  (1), andR—O-(AO)(CHCHO)—H  (2).