US 12,403,710 B2
Pretreatment apparatus, pretreatment method, producing method, and aqueous solution
Takuya Miwa, Nagoya (JP); and Mami Murase, Nagoya (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Appl. No. 18/023,921
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
PCT Filed Dec. 21, 2021, PCT No. PCT/JP2021/047231
§ 371(c)(1), (2) Date Feb. 28, 2023,
PCT Pub. No. WO2022/145282, PCT Pub. Date Jul. 7, 2022.
Claims priority of application No. 2020-219238 (JP), filed on Dec. 28, 2020.
Prior Publication US 2023/0322006 A1, Oct. 12, 2023
Int. Cl. B41J 2/01 (2006.01); B41M 5/00 (2006.01); C09D 11/037 (2014.01); C09D 11/14 (2006.01); C09D 11/38 (2014.01); C09D 11/54 (2014.01); D06P 1/48 (2006.01); D06P 5/00 (2006.01); D06P 5/30 (2006.01)
CPC B41M 5/0017 (2013.01) [C09D 11/037 (2013.01); C09D 11/14 (2013.01); C09D 11/38 (2013.01); C09D 11/54 (2013.01); D06P 1/48 (2013.01); D06P 5/002 (2013.01); D06P 5/30 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A pretreatment apparatus configured to perform pretreatment on a recording medium having permeability and to be applied with ink, comprising:
a first applicator configured to apply an aqueous solution containing alginate to the recording medium;
a second applicator configured to apply an aqueous solution containing a chelating agent to the recording medium; and
a third applicator configured to apply a pretreatment agent containing a polyvalent metal salt to the recording medium, wherein
the third applicator is configured to apply the pretreatment agent after the application of the aqueous solutions by the first applicator and the second applicator;
wherein the third applicator is configured to apply the pretreatment agent while the aqueous solution containing the chelating agent applied by the second applicator is wet.