What are the characteristics of the patterns of Yuan blue and white flowers?

The pattern of Yuan blue-and-white porcelain has the following characteristics: the color of Yuan blue-and-white porcelain is unstable, and the color of blue-and-white porcelain is dizzy. There are two kinds of blue and white materials: one is thick and bright, green and rich, and the thick part has black rust spots, commonly known as "black spots". Touching the thick part by hand, the blue and white glaze is uneven, which is the unique color effect of using imported "Suniboqing" material; The other is made in China. The blue-and-white hair color of domestic materials is blue to gray, some colors are blue to gray or blue to gray. In the extended period, the blue-and-white hair peony pattern goes deep into the fetal bone, showing a cloud-like shape, which seems to be lurking on the fetal bone, showing a three-dimensional effect and flickering. Blue-and-white floating near glaze, light blue-and-white explosive, floating blue-and-white glaze with thick black silk dots, and blue-and-white decorative floating near glaze slightly concave, which is also the basic point to identify Jingdezhen Yuan blue-and-white porcelain. The decorative patterns of blue and white porcelain in Yuan Dynasty can be divided into two categories. One is to draw decorative patterns with imported materials, which has the characteristics of dense composition, rich layers and neat painting. For example, the patterns in big markets are mostly composed of three to five layers of dense patterns, and the patterns in bottles and cans are mostly composed of three to eight layers of patterns and decorations. Patterns are characterized by the harmony between subject and object, complexity without disorder, and rich and diverse themes. They are composed of characters' stories, leafy flowers, fish and algae, lotus ponds, flowers with double phoenix flowers, flowers with broken branches and bamboos, fruits and other patterns. Flower patterns have the characteristics of big flowers and big leaves, among which lotus flowers are the main ones. Another kind of blue and white is painted with domestic materials, and the pattern is smooth and unrestrained. The pattern composition is relatively simple and the painting rate is relatively rough, and various flower patterns are more common.