星課堂|陶瓷化妝土的應用
化(hua)妝土(tu)(tu)是一(yi)(yi)種(zhong)(zhong)(zhong)天(tian)然粘(zhan)土(tu)(tu)，或是由(you)一(yi)(yi)種(zhong)(zhong)(zhong)粘(zhan)土(tu)(tu)、熔劑和非可塑性物料(liao)混合制成的(de)(de)泥漿，將(jiang)它薄薄地施(shi)于陶瓷坯體用(yong)來掩(yan)蓋坯體表(biao)(biao)面(mian)的(de)(de)顏色(se)、缺陷或粗(cu)糙表(biao)(biao)面(mian)，起到化(hua)妝的(de)(de)作用(yong)。化(hua)妝土(tu)(tu)一(yi)(yi)般(ban)分(fen)為兩(liang)種(zhong)(zhong)(zhong)：一(yi)(yi)種(zhong)(zhong)(zhong)是在坯體上施(shi)好化(hua)妝土(tu)(tu)后再施(shi)釉(you)(you)，通常(chang)將(jiang)此種(zhong)(zhong)(zhong)化(hua)妝土(tu)(tu)稱為釉(you)(you)底(di)料(liao)或底(di)釉(you)(you)，用(yong)于掩(yan)蓋坯體中鐵化(hua)合物的(de)(de)顏色(se)，以提高釉(you)(you)面(mian)白度或顏色(se)釉(you)(you)的(de)(de)呈色(se)效果。另(ling)一(yi)(yi)種(zhong)(zhong)(zhong)化(hua)妝土(tu)(tu)用(yong)于改變坯體的(de)(de)表(biao)(biao)面(mian)顏色(se)和抗(kang)風化(hua)能力。
