公开(公告)号：US20210380828A1

公开(公告)日：2021-12-09

申请号：US17403581

申请日：2021-08-16

Applicant: TOPPAN PRINTING CO.,LTD.

Inventor： Yuichi HOSHINO ,  Masato FUKUSHIRO ,  Hideki ISHIKAWA ,  Masatoshi SAITO

IPC: C09D11/328 ,  C09D11/40 ,  A61K9/20

Abstract: An inkjet ink that shows only a small amount of discoloration over time and is capable of printing with a stable color, not only when printed on a surface of a print object having a relatively low ink permeability, but also when printed on a surface of a print object having a relatively high ink permeability, and provide a printed item including a printed area printed using the inkjet ink. A gray ink according to the present embodiment is an edible inkjet ink which contains at least a first colorant which is a food dye and a second colorant which is a food dye, and the first colorant is at least one of Red No. 3, Red No. 40, Red No. 104, Red No. 105, and Red No. 106.