	US 12,252,449 B2
	Dry granular ceramic tile from wet slurry spraying process and preparation method thereof
Libiao Xiao, Foshan (CN); Qinggang Wang, Foshan (CN); Zengcheng Qin, Foshan (CN); Yuandong Yang, Foshan (CN); Xianchao Wang, Foshan (CN); Zhicong Yan, Foshan (CN); and Kemu Cheng, Foshan (CN)
Assigned to MONALISA GROUP CO., LTD, Foshan (CN)
Appl. No. 17/595,428
Filed by MONALISA GROUP CO., LTD, Foshan (CN)
PCT Filed Nov. 21, 2019, PCT No. PCT/CN2019/120000 § 371(c)(1), (2) Date Nov. 16, 2021, PCT Pub. No. WO2020/233032, PCT Pub. Date Nov. 26, 2020.
Claims priority of application No. 201910412550.7 (CN), filed on May 17, 2019.
Prior Publication US 2022/0204416 A1, Jun. 30, 2022
Int. Cl. C04B 41/86 (2006.01); C03C 8/04 (2006.01); C03C 8/16 (2006.01); C03C 8/22 (2006.01); B28B 11/04 (2006.01); B28B 11/08 (2006.01); B41M 5/00 (2006.01)

CPC C04B 41/86 (2013.01) [C03C 8/04 (2013.01); C03C 8/16 (2013.01); C03C 8/22 (2013.01); B28B 11/044 (2013.01); B28B 11/048 (2013.01); B28B 11/08 (2013.01); B41M 5/007 (2013.01); C04B 2235/9661 (2013.01)]

8 Claims

1. A method for preparing dry granular ceramic tile by a wet slurry spraying process, comprising:

applying surface glaze and an ink-jet printing pattern on a green body, then bell-shaped spraying dry granular glaze, and sintering to obtain ceramic tiles,

wherein the dry granular glaze contains: by mass percentage, dry granular frit A: 15%, dry granular frit B: 12% to 15%, dry granular frit C: 13% to 17%, printing powder: 5% to 7%, glue: 35% to 38%, and water 10% to 13%,

wherein the printing powder is composed of 45% to 50% feldspar powder, 15% to 17% limestone powder, and 35% to 40% quartz powder,

wherein the particle gradation of the dry granular frits in the dry granular glaze is as follows: 60 to 80 mesh: 8% to 12%, 80 to 100 mesh: 6% to 10%, 100 to 120 mesh: 8% to 15%, 120 to 140 mesh: 8% to 15%, 140 to 250 mesh: 50% to 60%, 250 to 325 mesh: 1% to 4%, and below 325 mesh: ≤2%, and

wherein the softening temperature of the dry granular frit A is 1135° C. to 1175° C., the softening temperature of the dry granular frit B is 980° C. to 1050° C., and the softening temperature of the dry granular frit C is 1020° C. to 1127° C.