US 12,330,998 B2
Hard wear-resistant polished glazed ceramic tile and preparation method thereof
Yijun Liu, Foshan (CN); Laifu Deng, Foshan (CN); Yuandong Yang, Foshan (CN); Xianchao Wang, Foshan (CN); and Kelin Zhang, Foshan (CN)
Assigned to MONALISA GROUP CO., LTD, Foshan (CN)
Appl. No. 18/001,048
Filed by MONALISA GROUP CO., LTD, Foshan (CN)
PCT Filed Dec. 24, 2020, PCT No. PCT/CN2020/138894
§ 371(c)(1), (2) Date Dec. 7, 2022,
PCT Pub. No. WO2021/258691, PCT Pub. Date Dec. 30, 2021.
Claims priority of application No. 202010587634.7 (CN), filed on Jun. 24, 2020.
Prior Publication US 2023/0227374 A1, Jul. 20, 2023
Int. Cl. C04B 41/89 (2006.01); C03C 3/087 (2006.01); C03C 8/04 (2006.01); C03C 10/00 (2006.01); C04B 41/00 (2006.01); C04B 41/45 (2006.01); C04B 41/50 (2006.01); C04B 41/52 (2006.01); E04F 13/14 (2006.01)
CPC C04B 41/522 (2013.01) [C03C 3/087 (2013.01); C03C 8/04 (2013.01); C03C 10/0036 (2013.01); C04B 41/0072 (2013.01); C04B 41/009 (2013.01); C04B 41/4543 (2013.01); C04B 41/4578 (2013.01); C04B 41/5023 (2013.01); C04B 41/89 (2013.01); E04F 13/142 (2013.01); C03C 2204/00 (2013.01); C03C 2209/02 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A preparation method for a hardened wear-resistant polished glazed ceramic tile, comprising the following steps:
Step (1): pressing and then drying body powder to form a green brick;
Step (2): applying a ground coat on a surface of the green brick;
Step (3): inkjet-printing a pattern on the surface of the green brick having the ground coat, and applying an isolation glaze, a chemical composition of the isolation glaze comprising 42 to 50 percent by weight of SiO2, 21 to 25 percent by weight of Al2O3, 0.16 to 0.46 percent by weight of Fe2O3, 0.10 to 0.20 percent by weight of TiO2, 10.0 to 12.0 percent by weight of CaO, 1.0 to 2.0 percent by weight of MgO, 0.5 to 1.5 percent by weight of K2O, 1.5 to 2.5 percent by weight of Na2O, 4.5 to 7.5 percent by weight of ZnO, 6.0 to 10.0 percent by weight of BaO, and 4.0 to 6.0 percent by weight of loss on ignition;
Step (4): applying a fully polished glaze on the surface of the green brick having the isolation glaze, a chemical composition of the fully polished glaze comprising 42 to 50 percent by weight of SiO2, 21 to 25 percent by weight of Al2O3, 0.16 to 0.46 percent by weight of Fe2O3, 0.10 to 0.20 percent by weight of TiO2, 8.5 to 10.5 percent by weight of CaO, 4.0 to 6.0 percent by weight of MgO, 0.5 to 1.5 percent by weight of K2O, 0.5 to 1.5 percent by weight of Na2O, 4.5 to 7.5 percent by weight of ZnO, 6.0 to 10.0 percent by weight of BaO, 0.5 to 2.0 percent by weight of ZrO2, and 4.0 to 6.0 percent by weight of loss on ignition; and
Step (5): drying, firing, and polishing the green brick having the fully polished glaze to obtain a hardened wear-resistant polished glazed ceramic tile,
wherein a phase composition of the fired fully polished glaze is 10 to 20 percent by weight of corundum, 20 to 30 percent by weight of hyalophane, 0.5 to 1.0 percent by weight of hematite, and 50 to 68 percent by weight of amorphous phase.