公开(公告)号：US20180362790A1

公开(公告)日：2018-12-20

申请号：US16111417

申请日：2018-08-24

Applicant: FUJIFILM Corporation

Inventor： Kosuke WATANABE ,  Yushi HONGO ,  Kensuke MASUI ,  Naoharu KIYOTO ,  Toshiyuki MAKUTA ,  Kazuhiro HAMADA

IPC: C09D11/38 ,  C09D11/322 ,  C09D11/08 ,  C09D11/52 ,  C08K3/08 ,  C08K5/378

Abstract: Provided is an ink composition used for image formation by an ink jet method. The ink composition includes plate-like metal particles that include a metal element having a standard oxidation-reduction potential nobler than −1.65 V, that have an average equivalent circle diameter of 10 nm or more and less than 500 nm, and that have an average aspect ratio, which is the ratio of the average equivalent circle diameter to an average thickness, of 3 or more. Also provided are an ink set, an image forming method, and a printed matter.

公开(公告)号：US20180362789A1

公开(公告)日：2018-12-20

申请号：US16111414

申请日：2018-08-24

Applicant: FUJIFILM Corporation

Inventor： Naoharu KIYOTO ,  Kosuke WATANABE

IPC: C09D11/38 ,  C09D11/322 ,  C09D11/08 ,  C09D11/52 ,  C08K3/08 ,  C08K5/378

Abstract: Provided is an ink composition used for image formation by an ink jet method. The ink composition includes plate-like metal particles and an organic solvent having a boiling point of 150° C. or higher and a solubility parameter of 24 MPa1/2 or more. The maximum absorption wavelength of the ink composition in the wavelength range of 300 nm to 2,500 nm is located in the wavelength range of 800 nm to 2,500 nm. Also provided is an image forming method.