US 12,001,900 B2
Inkjet printing method and inkjet printing device
Takeo Yamamoto, Yamagata (JP); Katsuya Ono, Yamagata (JP); and Koji Saito, Yamagata (JP)
Assigned to 3M Innovative Properties Company, St. Paul, MN (US)
Appl. No. 17/765,998
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Oct. 8, 2020, PCT No. PCT/IB2020/059474
§ 371(c)(1), (2) Date Apr. 1, 2022,
PCT Pub. No. WO2021/070115, PCT Pub. Date Apr. 15, 2021.
Claims priority of application No. 2019-188080 (JP), filed on Oct. 11, 2019.
Prior Publication US 2022/0371335 A1, Nov. 24, 2022
Int. Cl. G06K 15/10 (2006.01); B41M 3/00 (2006.01); B41M 7/00 (2006.01)
CPC G06K 15/105 (2013.01) [B41M 3/008 (2013.01); B41M 7/0045 (2013.01); B41M 7/0081 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An inkjet printing method that forms a decorative printed layer having a three-dimensional texture on a printing surface, comprising:
printing dots of curable ink that cure under a predetermined condition based on dot pattern data indicative of printed positions of the dots to be printed on the printing surface; and
curing the printed dots, wherein
the dot pattern data indicates that:
a distance between the adjacent dots becomes a distance where the adjacent dots before the curing are allowed to be maintained independently without bonding to one another in a first region; and
the distance between the adjacent dots becomes a distance where the adjacent dots before the curing bond to one another in a second region different from the first region
and the inkjet printing method further comprises:
repeating the printing of the dots and the curing of the printed dots by a plurality of times,
wherein
the decorative printing in which the cured dots of the curable ink are multi-layered on at least a part of the printing surface is formed and
the repeating is performed by a multi-pass system, wherein
the multi-pass system comprises:
a dot printing unit,
a conveying unit and
a base material, wherein
the dot printing unit comprising:
a first nozzle group and a second nozzle group arranged from an upstream in the conveying direction of the conveying unit in order and
the base material comprises:
a first printed region and a second printed region disposed in a longitudinal direction of the base material, wherein
the first nozzle group performs the printing of the dots in the first pass on the second printed region, when the second nozzle group performs the printing of the dots in the second pass on the first printed region.