US 12,486,422 B2
Textile printing ink set and textile printing method
Masao Ikoshi, Kanagawa (JP); Ryoichi Nakano, Kanagawa (JP); Shota Suzuki, Kanagawa (JP); Shinichiro Sekine, Kanagawa (JP); and Shohei Kataoka, Kanagawa (JP)
Assigned to FUJIFILM CORPORATION, Tokyo (JP)
Filed by FUJIFILM CORPORATION, Tokyo (JP)
Filed on Feb. 22, 2022, as Appl. No. 17/676,814.
Application 17/676,814 is a continuation of application No. PCT/JP2020/036090, filed on Sep. 24, 2020.
Claims priority of application No. 2019-180627 (JP), filed on Sep. 30, 2019.
Prior Publication US 2022/0177721 A1, Jun. 9, 2022
Int. Cl. C09D 11/54 (2014.01); B41J 3/407 (2006.01); B41M 5/00 (2006.01); C09D 11/033 (2014.01); C09D 11/037 (2014.01); C09D 11/102 (2014.01); C09D 11/328 (2014.01); C09D 11/38 (2014.01); C09D 11/40 (2014.01); D06P 1/16 (2006.01); D06P 1/22 (2006.01); D06P 1/642 (2006.01); D06P 1/655 (2006.01); D06P 5/00 (2006.01); D06P 5/30 (2006.01)
CPC C09D 11/54 (2013.01) [B41J 3/4078 (2013.01); B41M 5/0017 (2013.01); B41M 5/0023 (2013.01); C09D 11/033 (2013.01); C09D 11/037 (2013.01); C09D 11/102 (2013.01); C09D 11/328 (2013.01); C09D 11/38 (2013.01); C09D 11/40 (2013.01); D06P 1/16 (2013.01); D06P 1/22 (2013.01); D06P 1/642 (2013.01); D06P 1/6429 (2013.01); D06P 1/655 (2013.01); D06P 5/002 (2013.01); D06P 5/30 (2013.01)] 7 Claims
 
1. A textile printing ink set comprising:
a pretreatment liquid comprising a quaternary ammonium cation having a molecular weight of 3000 or less; and
an ink composition comprising a water-insoluble dye, a water-soluble dispersing agent, and water,
wherein the water-soluble dispersing agent is a urethane resin which disperses the water-insoluble dye in the water,
wherein a content of the water-insoluble dye relative to a total amount of the ink composition is 1 mass % to 10 mass %,
wherein a content of the quaternary ammonium cation relative to a total amount of the pretreatment liquid is 5 mass % to 20 mass %,
wherein the quaternary ammonium cation has an aromatic ring, which is a benzene ring, naphthalene ring, or anthracene ring, and
wherein upon contact of the ink composition with the quaternary ammonium cation, the quaternary ammonium cation turns the water-soluble dispersing agent to become insoluble in the water, causing aggregation of the water-insoluble dye.