公开(公告)号：US20200062976A1

公开(公告)日：2020-02-27

申请号：US16469234

申请日：2017-12-14

Applicant: SAKATA INX CORPORATION

Inventor： Junichi Harada ,  Toru Ogawa ,  Yoshiaki Maeoka ,  Ryo Takabayashi ,  Kenta Akasaka

IPC: C09D11/102 ,  C09D11/037 ,  C08G18/32

Abstract: Provided is a flexible package laminate print ink composition including a pigment, a binder resin, and an organic solvent. The binder resin includes polyurethane resin including a biomass polyurethane resin obtained by a reaction of a biopolyester polyol component and an organic diisocyanate component, and includes, at a terminal thereof, a primary or secondary amino group. The biopolyester polyol component includes a dicarboxylic acid, a certain amount of organic acid having three or more active hydrogen groups, each having a certain molecular weight, and diol. At least one of the dicarboxylic acid and the diol is plant-derived, and has NCO group/OH group=1.2 to 3.0. A content of the biomass polyurethane resin in the polyurethane resin is 5 mass % to 100 mass %.