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:
Sep. 02, 2025
Filed:
Dec. 05, 2022
Seiko Epson Corporation, Tokyo, JP;
SEIKO EPSON CORPORATION, , JP;
Abstract
A radiation-curable ink jet composition used in an ink jet printing apparatus including an ink jet head using a material with an SP value of 7.0 (J/cm)to 8.0 (J/cm)in a flow path is provided. The radiation-curable ink jet composition contains polymerizable monomers A including at least one polymerizable monomer B with an SP value of 7.0 (J/cm)or less or 8.0 (J/cm)or more and at least one polymerizable monomer C with an SP value of more than 7.0 (J/cm)to less than 8.0 (J/cm). The amount of the at least one polymerizable monomer B is 20% by mass or more relative to the total mass of the ink jet composition, and the amount of the at least one polymerizable monomer C is 22.5% by mass or less relative to the total mass of the ink jet composition.