公开(公告)号：US20240010863A1

公开(公告)日：2024-01-11

申请号：US18347901

申请日：2023-07-06

Applicant: SEIKO EPSON CORPORATION

Inventor： Shiho HAIZUKA ,  Ippei OKUDA

IPC: C09D11/40 ,  C09D11/32 ,  C09D11/38 ,  B41J2/04 ,  B41M5/36 ,  C09D11/54

CPC classification number: C09D11/40 ,  C09D11/32 ,  C09D11/38 ,  B41J2/04 ,  B41M5/36 ,  C09D11/54

Abstract: An ink set according to one embodiment of the present disclosure includes: a water-based ink composition containing a colorant; a first treatment liquid containing an aggregating agent; and a second treatment liquid containing an aggregating agent. In the ink set described above, a content of the aggregating agent in the first treatment liquid is 0.60 mol/kg or more, a content of the aggregating agent in the second treatment liquid is less than 0.60 mol/kg, the first treatment liquid is used together with the ink composition for recording on a recording medium which is a low-permeable substrate, and the second treatment liquid is used together with the ink composition for recording on a recording medium which is an impermeable substrate.