| 摘要 |
PURPOSE: Provided is an aggregate having various colors and patterns, which does not cause decolorization and discoloration even after a long time and is suitable to be used in a construction material or a health-aid product. CONSTITUTION: The aggregate is produced by the method comprising the steps of: kneading 50-88.5 wt% of ceramic material powder, 5-25 wt% of a mineral pigment, 0.5-3.5 wt% of a dispersing agent, 3-8 wt% of Al2O3 and 3-8 wt% of Fe2O3; forming the kneaded mixture into a mass; applying a pottery glaze to the mass; drying at room temperature; baking at 1000-1300 deg.C; and then cooling. More particularly, the ceramic powder is the mixed powder of feldspar, talc, jade, white mica, zeolite, bentonite and kaolin, the mineral pigment is titanium dioxide, and the glaze is white. The method optionally further comprises the step of adding 1-3 wt% of MgO before the mass forming step.
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