There is no contrast between blue and white, and there is no complexity and profusion of colored porcelain. Only one color is pure, but it is no less than "heavy makeup and light touch". This is a monochromatic glaze, also known as "monochromatic glaze", "pure glaze" and "one glaze". The creation and firing of monochromatic glaze in Song and Yuan Dynasties has become a major landscape, and the refined monochromatic glazed porcelain produced by official kilns in Ming and Qing Dynasties reached its peak. The exquisite skill of winning numbers glazed porcelain is impressive up to now, and it has also achieved record-breaking success in the auction. In Christie's 20 13 work, a sweet white glazed bowl with dark flowers gradually surfaced with a sharp edge of HK$ 27 million, causing an uproar in Tibetan areas. Today, the author will introduce you to a set of Chenghua Tian Zi sweet white glaze bowls. This set of Chenghua white glazed porcelain treasures is on display in Yubaoxuan exhibition hall in Shenzhen, and institutions and individuals who like porcelain collection can taste, exchange and learn. Sweet white porcelain is a kind of plain glazed porcelain, belonging to the white porcelain family. The firing of porcelain blank with low iron content and pure transparent glaze appeared as early as the Southern and Northern Dynasties, and the firing of white porcelain became more and more mature in Sui and Tang Dynasties. Extending to Yongle in the Ming Dynasty, porcelain makers spared no effort to make white porcelain "thoroughly remould itself" and develop it into a special porcelain-making process, that is, thin-walled fine white porcelain. The matrix of this porcelain is so thin that it can hardly be seen. It seems that the matrix has been removed, leaving only the glaze layer. The white glazed porcelain in Chenghua period can be said to be another peak after Yongle white glazed porcelain. Not only is the tire thin and pure, but the carcass is mostly light and regular, and its manufacturing technology has also matured in Yongle Xuande period. The origin of the name "sweet white glaze" is said to be related to white sugar. /kloc-before the 0 th and 6 th centuries, there was no white sugar in China, and it was all brown sugar or brown sugar. The appearance of white sugar gave people a new understanding of white porcelain at that time, that is to say, it had a "sweet" inner feeling like white sugar, so white porcelain was called "sweet white glaze" at that time. There is also a saying that "sweet white" porcelain is named because it is thin and half-length, which can give people a "sweet" feeling. The firing of Chenghua sweet white glaze porcelain is also very particular. In the smelting of sweet white porcelain, the proportion of kaolin is increased, and impurities are removed by multi-layer filtration and scouring, so that the toughness of the matrix is strengthened and the green body is thinner and whiter. At the same time, the composition of aluminum is increased, so that the firing temperature is increased, and most sweet white porcelain is in a half-baked state. In the compatibility of glaze, the iron component is removed, the glaze color is slightly beige in whitening, and there is a lake green phenomenon in glaze accumulation. At present, there are many imitations of sweet white glazed porcelain on the market, but they are far from those in Chenghua period. Although the imitation tire glaze in Qing Dynasty is white and fine, it is also painted by hand, but the carcass is thick, relatively uniform from top to bottom, the glaze surface is flat, the workmanship is regular, the glaze color is fine and white, and sometimes it is bright, but there is no lake green phenomenon at the glaze accumulation place. Modern imitations, mechanical pottery tires, grouting molding, tire patching and glazing all lack exquisiteness, and the glaze color is doped with chemical raw materials, so the hair color is extremely unnatural, the treasure light is invisible and the "thief light" is obvious. If identified by light, the transparency of real sweet white glaze porcelain gradually decreases from top to bottom, because the body of sweet white glaze porcelain gradually becomes thinner from bottom, waist to mouth. In the Qing dynasty, the whole body was thin and uniform, and the light transmittance was basically the same. Due to rough scouring, there are many impurities in modern imitations, and the carcass is often uneven under light. It is reported that the real sweet white glaze porcelain has three kinds of bubbles: large, medium and small. The imitation is clear and the bubble size distribution is uniform; Modern imitation bubbles are the same size and density. The successful firing of Tian Zi small bowl sweet white glaze-Jingdezhen sweet white glaze not only left a deep impression on the history of China ceramics, but also created favorable conditions for the development of colored porcelain in Ming Dynasty. Doucai, multicolored and famille rose in the Ming and Qing Dynasties can only show their bright colors on the basis of the high achievements of white porcelain. Chenghua porcelain is famous for its delicate and moist glaze. Its glaze color is not only plump and moist, but also smooth and flawless, as fat as jade. In particular, with rich blue-and-white ornamentation, blue-and-white is not only richer because of strong color difference, but also makes white glaze more like frost and snow. After the middle and late period, due to the change of glaze composition, the above phenomenon no longer existed. Instead, Leping Bitangqing (Ping Dengqing) and slightly cyan white glaze were used to form elegant blue-and-white porcelain and white glazed porcelain unique to Chenghua period. Chenghua Tian Zi sweet white glazed small bowl with dark carved dragon and phoenix patterns can be clearly seen. This set of Chenghua Tian Zi sweet white glazed small bowl collected by Shenzhen Yubaoxuan is slightly open, with shallow belly and full. The lines are soft and round, and white glaze is applied all over. The tires are thin and light, and the tires are as thin as eggshells. White glaze is applied inside and outside, and the bottom glaze is flat. The exterior wall is secretly engraved with dragon and phoenix patterns under the glaze (some are secretly engraved with dragon patterns, and some are secretly engraved with phoenix patterns). In the sun, you can see dragons flying and auspicious clouds complement each other, which is very vivid and vivid. The small bowl is light and beautiful, and the production process is very exquisite. The author holds this small bowl with sweet white glaze, which is almost thin. When Ying Ying holds it, it seems that his hands are ribbed, which is unbelievable. This also fully reflects that Chenghua sweet white glaze porcelain is more interested in pursuing perfection in the quality of specially-burned white porcelain. This kind of thin-walled white porcelain is not seen in folk kilns, and it is very beautiful. Tianzikuan is a unique sign of Chenghua. It is said that only the emperor can use Tianzi wide porcelain, which is the Tianzi wide official kiln in Chenghua in Ming Dynasty. It is also recorded that in the Qing Dynasty, clocks and watches wrote "Tian Zi as a kiln" and Tian Zi was a royal porcelain. Why does the bottom of Tian Zi porcelain say Tian Zi? There are many kinds of speculations. Generally speaking, according to the way of sorting out documents in the past, according to the opening of Qian Zi Wen, it is "the mystery of heaven and earth, the vastness of the universe". So we often say that "Tian Zi I" came from this way. Judging from the molding process of this set of bowls, the firing is very complicated and the difficulty can be imagined, because it needs to be printed on a porcelain tire as thin as paper. The success of the small bowl with sweet white glaze reflects that the production of sweet white glaze porcelain entered a prosperous stage in Chenghua period, which played a significant and far-reaching role and influence on the development of porcelain industry in later generations. There is a universal law in the art market. As long as it is fine, the economic value of any art field will definitely rise. At present, there are few monochromatic glazes in Ming Dynasty, and even less sweet white glazes. For collectors of white glazed porcelain, the sweet white glaze in Yongxuan period of Ming Dynasty is their "ultimate goal". Manager Deng, the appraiser of Shenzhen Yubaoxuan, said that many collectors are particularly fond of the sweet white glaze of this era. Many authoritative experts believe that the white glazed porcelain of this period has inherited the elegant ancient artistic connotation of this ancient porcelain, and there are no more fancy decorations, which embodies a little pure beauty, which can be said to be the return of advocating the concept of "simplicity". Of course, compared with other porcelains, its price also plays a certain role. During the Chenghua period, Chenghua's fighting for color was impressive. Recently, Liu Yiqian, a Shanghai collector, declared the Hua Dou Cai Chicken Cylinder Cup for HK$ 280 million and used it to taste tea, which caused a sensation in Tibetan areas. The prosperity of Chenghua Doucai Chicken Cylinder Cup has nothing to do with tea. A Doucai Chicken Cylinder Cup is the imperial wine glass of Emperor Minghua. Secondly, this cup of plain white porcelain is the world-famous sweet white porcelain. Its preciousness lies in its simplicity, elegance and introversion. You can't ignore the warmth and hypertrophy of sweet white because of its gorgeous color. Although there is still a big gap between sweet white glaze and Doucai in the transaction price, experienced collectors and auction market have realized that they are the same door, and the real value may be difficult to distinguish. This set of small bowls is absolutely rare and precious, and it is a precious cultural heritage left by ancient ancestors! Perhaps, their appearance will also bring a lot of sensation to the Tibetan community.