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. 24, 2026
Filed:
Apr. 25, 2022
Sakata Inx Corporation, Osaka, JP;
SAKATA INX CORPORATION, Osaka, JP;
Abstract
It is an object of the present invention to provide a primer composition for surface-printed flexible packaging, an ink set, a surface-printed matter, and an inkjet printing method, which can impart excellent solid uniformity, bleeding resistance, abrasion resistance, alcohol resistance, and heat resistance to a coating film when an inkjet image is formed after applying the primer composition. Provided is a primer composition for surface-printed flexible packaging comprising an acryl-based resin emulsion emulsified with a polymer, N-oleoyl sarcosine, a hydrazine-based compound having at least two or more hydrazine residues in a molecule, and wax, wherein a content of the acryl-based resin emulsion is 3 to 40% by mass in terms of solid content, and wherein a glass transition temperature of the acryl-based resin emulsion is-40 to 30° C.