US 12,214,583 B2
Recording method and recording device
Keigo Ando, Matsumoto (JP)
Assigned to SEIKO EPSON CORPORATION, (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Jul. 15, 2022, as Appl. No. 17/865,692.
Claims priority of application No. 2021-117936 (JP), filed on Jul. 16, 2021.
Prior Publication US 2023/0022251 A1, Jan. 26, 2023
Int. Cl. B41J 11/00 (2006.01); B41J 2/21 (2006.01); C09D 11/40 (2014.01)
CPC B41J 11/0022 (2021.01) [B41J 2/2117 (2013.01); C09D 11/40 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A recording method comprising:
a white ink attachment step of ejecting a white ink composition containing a white coloring material from a white ink jet head, and attaching the white ink composition to a recording medium;
a non-white ink attachment step of ejecting a non-white ink composition containing a non-white coloring material from a non-white ink jet head, and attaching the non-white ink composition to the recording medium; and
a primary drying step of heating the white ink composition and the non-white ink composition attached to the recording medium by a drying mechanism,
wherein in the white ink attachment step and the non-white ink attachment step, a layer containing the white ink composition and the non-white ink composition is formed by performing main scanning multiple times, in which the ink compositions are ejected and attached to the recording medium, and by attaching the white ink composition and the non-white ink composition to a same scanning region in the recording medium such that the white ink composition and the non-white ink composition are mixed in the layer by a same main scanning, while moving a position of an ink jet head relative to the recording medium, and
wherein a ratio A of an attachment amount of the white ink composition to 100% by mass of an attachment amount of the non-white ink composition is 80% by mass or less, in a region having a largest attachment amount of the non-white ink composition, among regions in the recording medium where the white ink composition and the non-white ink composition are attached.