Riding the wind of rebirth

Chapter 1574 Going to class

"Hey! I'm right!" Chai Rongbin was as happy as a primary school student who was praised by the teacher, but the prize was given to himself: "It's settled, I'll treat you tonight, Lion House!"

"Let's talk about the characteristics first." Lao Li said with a smile: "This is a rare opportunity. Teacher Xiao Zhou will teach us!"

Zhou Zhi smiled and said: "Now look at the base tire and glaze. Everyone has already reached a certain level, so let's talk about some advanced steps."

"Among all blue and white porcelains, Su material is the easiest to identify and the most difficult to imitate, because of its four major characteristics - halo, tin spots, beading pattern, and grid pattern."

"In fact, the reason for these four characteristics is that although Su material has the brightest color and is the most stable, due to ancient craftsmanship, the powder is not ground finely enough."

"Because the powder is not fine enough, when it is melted at high temperature, it is easy to form halo and flow. This is the first feature; after flowing, the cobalt ions re-condensate to form a beaded pattern; the iron ions re-condensate to form a beaded pattern. Tin spots; tin spots have crystallization during the formation process. When magnified a hundred times, they are grid patterns. "

"These four characteristics, at least until now, have not been completely imitated. In addition to the unique hair color of Su material blue and white, among all the blue and white porcelain, the easiest to identify is Su material blue and white."

"Nowadays, everyone has learned to be smart. When playing with porcelain, they play with large openings. Especially for folk kilns, the blue and white of folk kilns using Su materials basically have large openings at a glance. So as long as you look for this, you basically can't buy it. If you suffer a loss, you can’t be fooled.”

Chai Rongbin smiled and handed over to Zhou Zhi: "This idea is what you taught us back then, 'I would rather eat it all over the world than buy fresh food everywhere'. I really benefited a lot. I was on the road in no time. Now I think back on it. , that’s a huge loss.”

"It's not too late to start now. Although it's a bit difficult to get official kiln wares before Daoguang, there are still opportunities for those after Daoguang, as well as some monochromatic glazes from the Song and Yuan dynasties. "Zhang Cheng also expressed his views.

"Let's talk about the blank period." Zhou Zhi said: "Because most of them are folk kiln wares, the production of the body and glaze is relatively rough, and the cutting is not regular."

"The soles of the artifacts from the Blank Period are a major feature. Generally speaking, they tend to gradually widen, with the feet being wider and deeper. This is a common feature of folk kiln artifacts from this period."

"Bottles and jars had no glaze on the bottom in the early stage. In the later period, round vessels mostly had glazed bottoms, and sand bottoms became rare. Due to the decline in craftsmanship, there are obvious knife marks on the bottoms of bowls and plates."

"Most of the carcasses in the orthodox period are relatively thick, and the fetal bones are fine, white and firm. Because of the impurities, it is difficult for the base glaze to be pure white, and most of them are bluish white. The glaze layer of this type of base glaze is shiny and moist; a few glazes are yellowish, which means The first type of glaze often has openings."

"After Jingtai, the porcelain body quality began to be both thick and thin. The color of the body changed from white to gray. The glaze was white with bluish in it, and the glaze layer was as thick as fat. By Tianshun, the color of porcelain began to become white or gray, with green in the glaze. The smell is reduced, the whiteness is increased, and the glaze becomes smooth and smooth, and the color of the surface, interior and base glaze of the object is more consistent."

"This also shows that the social production force began to recover at that time. After a sudden decline from the peak of the Yongxuan period, it re-entered the Zhongsheng period of Chenghua." "So if we want to find the authentic high-quality porcelain from the Jingtai, Tianshun and Three Dynasties, then we must When looking for large items, most of them are large jars and plum vases, because large items are more difficult to make and may be from old official kilns, while small items are mostly made from folk kilns. "

"Then due to the near-collapse of society, the porcelain industry declined severely. The porcelain bodies were obviously not as fine as those during the Yongle and Xuande periods. The phenomenon of poor washing of the porcelain bodies began to appear like the porcelain of the late Yuan Dynasty. There were many black flaws in the bodies, and there were usually obvious holes at the bottom. Large areas of red flint and fine sandy bottoms are rare.”

"The Su material blue and white began to become scarce at this time. It has not been stale for a long time and lacks the requirements for excellence in the Yongxuan period. The glaze and the tire have also experienced degradation. Therefore, they are often not like Yongxuan, but closer to Yuan blue and white. Many experts They are often confused."

"Although most of the blue and white hair colors are similar to the Suma Liqing in the Yongxuan period, there are also a few parts that have pure blue hair color or gray hair color due to the decline in the ability to control the restoring environment. There is also a phenomenon that the local The use of blue and white glazes, and even the use of local blue and white glazes and Su materials were mixed together. Therefore, it is biased to judge blank period porcelain solely by the use of glaze colors. "

"But these are the knowledge after advancing again. We don't need to worry about it now. We just need to pay attention to the Su Liang who opened the door. Again..."

"I'd rather eat it all over the world than buy fresh food everywhere!" Now everyone knew.

"But this situation is not necessarily bad. At least the natural mineral raw materials used in ancient times have too many impurities compared to the raw materials used in today's Jingdezhen imitations. However, they show various traces that cannot be copied. New imitation porcelain cannot be made. ”

"In addition to the Yuntang hand and floral features, the shape of the vessel is also the key to distinguishing the front and the back. We all know that the shape of the Yongxuan blue and white vessel is graceful and noble, so the shape of the vessel is more plump and majestic, which is also the image of a prosperous dynasty."

"In Chenghua, porcelain became more refined and elegant. The glaze began to become thinner and the shape of the porcelain became more slender and beautiful."

"So there are two reference directions for the blue and white porcelain of the three dynasties during the blank period. The porcelain of the Zhengtong Dynasty should be based on the Xuande porcelain, and the shape of the porcelain is similar to the Xuande porcelain. The Tianshun porcelain should be identified with reference to the Chenghua porcelain. After all, the two dynasties are connected. , and changes in porcelain firing techniques and painting styles cannot happen in a day or two.”

"As for the Jingtai in the middle, the style is somewhere between the two, but it is the most difficult. Therefore, you don't have to think about it for now. Being able to classify it into the Zhengjing period or the Sedum period is better than 95% of the time. A lover of blue and white porcelain.”

"Then the characteristics of my pine, bamboo and plum jar are obvious. It is similar to the Yongxuan General's jar, and the glaze is thicker. If I choose between Xuande and Chenghua, I will obviously prefer the style of the Xuande Dynasty."

"Yes." Zhou Zhi smiled and said, "This is a big judgment point."

"There is also the simplicity of the picture. Xuande's denseness makes it sparse, which is especially obvious on the flower theme." Zhou Zhi said: "This jar is obviously more relaxed than the picture layout of Xuande porcelain, but it is less clear than Chenghua's." The blank space is too far away, and although the painting is not detailed, the brushstrokes are still quite smooth, so it can be judged that it is more inclined to Xuande."

"And the more evidence is in the details."