US 11,733,619 B2
Printed matter, infrared-absorbing-pigment-containing toner, tonner set, image forming method, and image forming apparatus
Kazumi Suzuki, Shizuoka (JP); Masaki Yoshino, Kanagawa (JP); Nekka Matsuura, Kanagawa (JP); Toyoshi Sawada, Shizuoka (JP); and Akihiro Kaneko, Kanagawa (JP)
Assigned to RICOH COMPANY, LTD., Tokyo (JP)
Appl. No. 17/296,123
Filed by RICOH COMPANY, LTD., Tokyo (JP)
PCT Filed Nov. 27, 2019, PCT No. PCT/JP2019/046335
§ 371(c)(1), (2) Date May 21, 2021,
PCT Pub. No. WO2020/111108, PCT Pub. Date Jun. 4, 2020.
Claims priority of application No. 2018-223010 (JP), filed on Nov. 29, 2018.
Prior Publication US 2021/0341851 A1, Nov. 4, 2021
Int. Cl. G03G 9/09 (2006.01); G03G 9/087 (2006.01); G03G 15/01 (2006.01); G03G 15/08 (2006.01)
CPC G03G 9/0918 (2013.01) [G03G 9/08755 (2013.01); G03G 9/08782 (2013.01); G03G 9/091 (2013.01); G03G 9/0904 (2013.01); G03G 9/0926 (2013.01); G03G 15/0121 (2013.01); G03G 15/0822 (2013.01)] 15 Claims
OG exemplary drawing
 
1. Printed matter, comprising:
a recording medium;
a colored layer overlying the recording medium; the colored layer containing a colorant; and
an infrared-absorbing-pigment-containing layer overlying the recording medium and underlying the colored layer, the infrared-absorbing-pigment-containing layer containing an infrared absorbing pigment having an average diameter of from 120 to 250 nm in the infrared-absorbing-pigment-containing layer,
wherein the infrared absorbing pigment comprises vanadium naphthalocyanine, and
wherein the printed matter is produced by an electrophotographic method.