The glazed type of Yuan blue and white:

Shadow green glaze : also known as blue and white glaze, used in the early and middle of the Yuan Dynasty blue and white, with domestic green material.

The blue-and-white glaze of the blue-and-white porcelain at the end of the Yuan Dynasty is a derivative of the shadow green glaze, which is different from the shadow glaze or blue-white glaze of the blue and white in the early and middle of the Yuan Dynasty. Glazed gray or yellow, glaze layer is strong, or matt, in addition to the lack of firing technology, but also related to the higher proportion of glaze in the glaze layer. The blue-and-white porcelain of the Yuan Dynasty was white and glazed, and it was transparent and transparent. The surface of the fetal bone could be seen with a fine skin layer. The glazed surface was not smooth, and the hand grip felt uneven.

The body glaze is slightly flashing blue and blue, and the temperature is slightly light blue. In addition to the water and green color of the foot, the body glaze often shows pale yellow, sometimes showing opaque white, and its color will follow the air. The humidity and temperature change are slightly different. In the Yuan period, the vases and cans are slanted, and the glare through the glaze will show irregular white silk stripes, also known as glaze. There is no air bubble on the blue and white underglaze in the first period, and the glaze is dry when the temperature is high, but sometimes there is a slight sweating phenomenon. The coloration of the glazed surface in the first period seems to be active.

White glaze : used from the middle of the 14th century to the beginning of the year, using imported green material.

The glazed white is pan-green, the glaze is radiant and translucent, smooth and moist, and the glaze is marked with duck egg blue. The glaze brightness often has a flashing feeling, and the glaze of the foot ring shows a faint water green. With just the right amount of transparency, brightness and color, it can better set off the expressive power of blue and white.

Egg white glaze: Beginning with blue and white on the end of the Yuan Dynasty, the glaze layer is opaque, with domestic green materials, and many small devices. Most of the high-foot cups, bowls, bowls, and small cans are used. Grab the finger marks left behind.

Yuan Qinghua is generally unglazed at the bottom except for the jade pot spring bottle. There are glaze spots of different sizes and shapes at the bottom. The high-foot cup has a wide and narrow glaze mark on the inner side of the high foot. The inner side of the bottle of fine bottle such as plum bottle is along the lower body. The inner wall of the large tank is glazed by the glazing method. The inside of the lid is a solid tire, light yellowish, see fine glaze. The glaze of the Yuan and Qing dynasty body is basically flat. The glazed surface of the large-scale sputum in the bondage of the carcass is slightly convex. The thickness of the glaze in the mouth is uneven, and the glaze is beige.

From the view of the disinfector, there is no glaze in the abdomen of the neck of the bottle, the bottom of the bottle, the bottom of the can or the high-foot cup, the glaze of the bowl is usually in the foot of the bowl, and the glaze around each plaque or the foot and the glaze A light-colored flint red edge appears. There is a burr phenomenon at the mouth of the object (that is, the small bubble is broken). Some glazed surfaces on the table have a phenomenon of shrinking glaze, which is not serious and belongs to a few phenomena. The glazed hand feels warm and jade, and the light is soft and not glaring. If it is too bright or has strong light points, it is worth considering.

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