公开(公告)号：EP3778800A1

公开(公告)日：2021-02-17

申请号：EP19781618.4

申请日：2019-04-03

Applicant: Toppan Printing Co., Ltd.

Inventor： ISHIKAWA Hideki ,  HOSHINO Yuichi ,  SAITO Masatoshi

IPC: C09D11/328 ,  B41J2/01 ,  B41M5/00 ,  B41M5/52 ,  C09B11/26 ,  C09B29/16 ,  C09B67/46

Abstract: The present invention aims to provide a blue ink-jet ink that improves lightfastness of the same while maintaining its blue print color and a tablet including a part printed with the blue ink-jet ink. The blue ink-jet ink according to the present embodiment is an edible ink-jet that contains Brilliant Blue FCF (Blue No. 1 Colorant) and New Coccine (Red No. 102 Colorant) as colorants.

公开(公告)号：EP3928987A1

公开(公告)日：2021-12-29

申请号：EP20759030.8

申请日：2020-02-20

Applicant: Toppan Printing Co., Ltd.

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

IPC: B41J2/01 ,  C09D11/328 ,  C09D11/40 ,  A61K9/20 ,  B41M5/00

Abstract: An object of the invention is to provide an inkjet ink which 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.

公开(公告)号：EP3778795A1

公开(公告)日：2021-02-17

申请号：EP19775483.1

申请日：2019-03-29

Applicant: Toppan Printing Co., Ltd.

Inventor： HOSHINO Yuichi ,  SAITO Masatoshi

IPC: C09D11/32 ,  A61K9/44 ,  A61K47/10 ,  A61K47/20 ,  A61K47/22 ,  A61K47/24

Abstract: There is provided an inkjet ink in which a food color containing at least sodium copper chlorophyllin and a pigment other than sodium copper chlorophyllin is dispersed in a dispersion medium containing propylene glycol, and which prevents the occurrence of precipitation of the pigment components or other components even when the inkjet ink is stored for a long period of time, and there is also provided a tablet having a print pattern printed by the inkjet ink. The inkjet ink of the present embodiment, which is edible, comprises a food color containing at least sodium copper chlorophyllin and a pigment other than sodium copper chlorophyllin, and a dispersion medium containing propylene glycol, and has a propylene glycol content in the range of 0.001 mass% or more and 19 mass% or less relative to the total mass of the inkjet ink.