US 12,410,333 B2
Inkjet ink
Tomoshi Kumazawa, Nagoya (JP); Hiromichi Hayashi, Nagoya (JP); and Yuuki Arakawa, Nagoya (JP)
Assigned to NORITAKE CO., LIMITED, (JP)
Appl. No. 17/432,679
Filed by NORITAKE CO., LIMITED, Nagoya (JP)
PCT Filed Dec. 27, 2019, PCT No. PCT/JP2019/051397
§ 371(c)(1), (2) Date Aug. 20, 2021,
PCT Pub. No. WO2020/174869, PCT Pub. Date Sep. 3, 2020.
Claims priority of application No. 2019-034699 (JP), filed on Feb. 27, 2019.
Prior Publication US 2022/0089893 A1, Mar. 24, 2022
Int. Cl. C09D 11/38 (2014.01); B41M 5/00 (2006.01); B41M 5/382 (2006.01); C08F 220/18 (2006.01); C08F 220/30 (2006.01); C08F 222/10 (2006.01); C08F 224/00 (2006.01); C08F 226/06 (2006.01); C08K 3/013 (2018.01); C08K 3/40 (2006.01); C09D 11/322 (2014.01)
CPC C09D 11/38 (2013.01) [B41M 5/007 (2013.01); B41M 5/3825 (2013.01); C08F 220/1807 (2020.02); C08F 220/301 (2020.02); C08F 222/102 (2020.02); C08F 224/00 (2013.01); C08F 226/06 (2013.01); C08K 3/013 (2018.01); C08K 3/40 (2013.01); C09D 11/322 (2013.01)] 20 Claims
 
1. Inkjet ink usable for a transfer sheet suitable for an inorganic substrate, the inkjet ink comprising:
an inorganic solid content including an inorganic pigment and glass; and
a monomer component having photocurability,
wherein:
the inorganic pigment comprises a composite metal compound containing at least one metal element selected from the group consisting of Fe, Cu, Mn, Zr, Ti, Pr, Cr, Sb, Ni, Co, Al and Cd,
the maximum particle diameter of the glass is 1 μm or shorter,
the mass ratio of the glass to the total weight of the inorganic solid content is 65% by mass or more and 90% by mass or less,
the monomer component includes at least:
a monofunctional acrylate-based monomer containing one acryloyl group or one methacryloyl group in a molecule;
a monofunctional N-vinyl compound monomer containing a nitrogen-containing compound and one vinyl group bonded to a nitrogen (N) atom of the nitrogen-containing compound; and
a polyfunctional vinylether-based monomer containing at least two vinylether groups in a molecule,
the monofunctional acrylate-based monomer is contained at a weight ratio of 60% by mass to 96% by mass with respect to 100% by mass as the total weight of the monomer component,
the monofunctional N-vinyl compound monomer is contained at a weight ratio of 2% by mass to 20% by mass with respect to 100% by mass as the total weight of the monomer component, and
the polyfunctional vinylether-based monomer is contained at a weight ratio of 2% by mass to 40% by mass with respect to 100% by mass as the total weight of the monomer component.