Method for preparing Longquan celadon glaze and products thereof prepared from coloring element-containing soluble salt

Abstract

The invention relates to a method for preparing Longquan celadon glaze and products thereof prepared from coloring element-containing soluble salt. Natural mineral raw materials and industrial chemical raw materials are adopted, and parent glaze and a dyeing assistant comprise the following components in percentage by weight: 62 to 73 percent of SiO2, 10 to 18 percent of Al2O3, 1 to 4 percent of K2O, 0 to 3 percent of Na2O, 10 to 20 percent of CaO, 0 to 2 percent of MgO, and 0 to 2 percent of ZnO. The method comprises the following steps of: adding 2 to 10 weight percent of coloring element-containing soluble salt in different modes, glazing and drying the conventional Longquan celadon body, trimming and drying, putting into a kiln, and sintering in reducing atmosphere or neutral atmosphere at the temperature of between 1,260 and 1,320 DEG C to obtain the Longquan celadon glaze products. The coloring substance exists in the glaze in the form of ions, is uniformly dispersed and can be accurately measured, so the Longquan celadon glaze with stable fineness can be prepared by the method.

Description

technical field [0001] The invention belongs to the field of inorganic non-metallic materials (ceramics), and in particular relates to a preparation method of Longquan celadon glaze prepared by using soluble salts containing coloring elements and its products. Background technique [0002] Longquan celadon is one of the important famous kilns in the history of Chinese ceramics. According to research, it has been sold overseas as early as a thousand years ago, and its products are sold well in many countries and regions in Asia, Africa, Europe and other three continents. Longquan celadon has won people's love for its jasper-like glaze color, simple and elegant shape, smooth and beautiful lines and utensils for both refined and popular tastes, and enjoys a high reputation all over the world. The color of Longquan celadon glaze comes from the Fe in raw materials (such as purple gold soil or iron oxide). 2 o 3 Such as the quantity and type of coloring substances, when the gla...

AI Technical Summary

Problems solved by technology

Therefore, the coloring of various existing celadon is quite different due to the commonly used coloring raw material types, fineness, hardness and Fe ion price balance, resulting in the problem of unstable color development of Longquan celadon glaze prepared in the traditional way has not been well resolved. solve