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:
Mar. 10, 2020
Filed:
Jun. 24, 2016
Kao Corporation, Tokyo, JP;
Yuki Wakabayashi, Izumiotsu, JP;
Hirotaka Takeno, Wakayama, JP;
KAO CORPORATION, Tokyo, JP;
Abstract
The present invention relates to [1] an ink-jet printing method including a printing step of ejecting a water-based ink onto a surface of a printing medium to print characters or images thereon, in which the water-based ink includes a pigment (A), an organic solvent (B), a surfactant (C) and water; the organic solvent (B) includes at least a glycol ether (b-1), and the glycol ether has a viscosity of from 2.0 to 5.5 mPa·s as measured at 20° C. and a vapor pressure of from 0.03 to 6.0 hPa as measured at 20° C.; a content of a high-boiling organic solvent having a boiling point of not lower than 250° C. in the water-based ink is not more than 5% by mass; and a printing speed upon printing the characters or images on the printing medium is not less than 70 m/min in terms of a transportation speed of the printing medium, and [2] a water-based ink used in the inkjet printing method.