青花又称白地青花瓷器,它是用含氧化钴的钴矿为原料,在陶瓷坯体上描绘纹饰,再罩上一层透明釉,经高温还原焰一次烧成的瓷器品种。钴料烧成后呈蓝色,具有着色力强、发色鲜艳、烧成率高、呈色稳定的特点。目前发现最早的青花瓷标本是唐代的;成熟的青花瓷器出现在元代;明代青花成为瓷器制作 Blue and white, also known as white blue and white porcelain, which is cobalt-containing cobalt ore as raw material, painted on the ceramic body decoration, and then covered with a layer of transparent glaze, fired by a high temperature reduction of porcelain varieties. Cobalt material after firing was blue, with strong tinting, bright hair, high firing rate, color stability characteristics. At present, the earliest specimens of blue and white porcelain are found in the Tang Dynasty; the mature blue and white porcelain appeared in the Yuan Dynasty; the blue and white flowers of the Ming Dynasty became porcelain