The invention discloses a reddish-black jun porcelain
glaze prepared by utilizing
metal copper and iron and a preparation method of the reddish-black jun porcelain
glaze, belonging to the preparation filed of
ceramic glazes. The preparation method of the reddish-black jun porcelain
glaze comprises the following steps of: (1), mixing the following components in percentage by weight: 45%-50% of
feldspar, 20%-30% of
quartz, 14%-17% of
calcite, 5%-7% of talcum, 2.5%-3.5% of kaolin and 2.9%-3.5% of
calcium phosphate, so as to obtain a material mixture, and adding and sufficiently mixing the following materials (based on the total weight of the material mixture): 0.3%-2% of ZnO, 1.5%-4% of SnO2, 0.2%-2% of Fe, 0.1%-1.5% of Cu, 0.1%-0.5% of
cellulose and 0.5%-1.5% of
sodium tripolyphosphate, so as to obtain a glaze mixture; (2), carrying out wet-process ball-milling on the glaze mixture to obtain glaze pulp; (3), applying the glaze pulp on a biscuit firing billet for firing for 20 minutes-40minutes in a neutral or weak oxidative
atmosphere, and cooling to obtain the reddish-black jun porcelain glaze. The preparation method of the reddish-black jun porcelain glaze is simple and easy to implement, board in firing temperature range and easily controllable in firing
atmosphere. And the reddish-black jun porcelain glaze obtained by the preparation method disclosed by the invention is simple in composition, smooth and flat in glazed surface, high in stability and bright in reddish-black color.