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. 09, 2021
Filed:
Dec. 27, 2019
Seiko Epson Corporation, Tokyo, JP;
Kenichi Seguchi, Okaya, JP;
Abstract
An ink jet recording method includes a treatment liquid attachment step, in which a treatment liquid containing at least one flocculant is attached to a recording medium, and an ink attachment step, in which an aqueous ink composition is attached to the recording medium. The treatment liquid attachment step and the ink attachment step are performed through multiple main scans and multiple sub-scans. A main scan is a movement of a recording head in a main scanning direction, and a sub-scan is a movement of the recording medium in a sub-scanning direction, which crosses the main scanning direction. The recording head has a first ejecting nozzle group, which is a line of nozzles arranged in the sub-scanning direction and ejects the treatment liquid, and a second ejecting nozzle group, which is a line of nozzles arranged in the sub-scanning direction and ejects the aqueous ink composition. The first ejecting nozzle group overlaps, at least in a portion, the second ejecting nozzle group when projected in the main scanning direction. When the treatment liquid is tested using a rigid-body pendulum characteristics tester at 35.0° C. for 20.0 minutes, the minimum oscillation period of the rigid-body pendulum is 70.0% or more of the maximum oscillation period of the rigid-body pendulum.