"After talking about the tire, let's talk about the glaze."

"The glaze of ancient porcelain has a distinctive feature. The thicker the glaze, the more obvious it is. That is the generation and overflow of bubbles in the glaze during the firing process, which will form a kind of small and dense 'brown eyes' on the surface of the porcelain. , commonly known as 'orange peel', they and the tiny bubbles in the glaze scatter light, thus producing a special soft feeling. On the sweet white glaze, it appears as a jade-like 'moisture', a greasy feeling . ”

"Obviously, this piece of porcelain does not have such a feeling. The glaze shows a pure glass texture, and the light floats on the surface. This is called 'thief light' in the jargon. It is different from the restrained 'baoguang' of ancient porcelain. This It’s caused by the new porcelain surface being too smooth.”

"The most important point is that the white color of Chenghua Sweet White is actually a complex optical reaction. It is not a pure white, but a warm-colored porcelain body combined with a cold-colored glaze color. It shows a pleasant white color. The ancients used the word 'sweet white' to describe it, which is really appropriate."

"Yongle and Chenghua are sweet white. When viewed through the light, the soil shows a fleshy red or pink color; and on the edges and corners of the utensils where the glaze is accumulated, there is often a faint asphalt green luster. If If the accumulated glaze is thicker, like a circle at the bottom of a bowl, it will form a magical 'lake green' glaze color accumulation, which is very beautiful."

"The craft formula of this 'composite sweet white' has been lost after Chenghua. Later imitations in the late Ming Dynasty have a thick body and poor firing technology, so the glaze appears flashing yellow or flashing gray."

"Hongzhi, Jiajing sweet white glaze vessels all have cyan bottoms, and occasionally have sauce-yellow spots on the glaze surface;"

"In the Kang Dynasty of the Qing Dynasty, the Yongtian white glaze was white and slightly green, relatively lustrous, thick in texture, and mostly decorated with hidden carvings. The themes included flowers, plants, landscapes, etc. The Yongzheng imitation of the Yongle sweet white glaze was similar except that the four walls were transparent. In addition to the light, even the bottom of the vessel is transparent, which is the biggest difference between Yongle and Yongzheng sweet white glazes."

"Qianlong's sweet white contains heavier powder and is whiter, but the glaze is not as good as that of Kang. It is more delicate and has more complicated dark carvings. The glaze is white, but not moist, and generally has a greenish tint. The folk kilns are mostly imitated by Xuande and Chenghua. , Hongzhi inscriptions, some are written in blue and white, and some are secretly engraved in regular script, mostly blue and white;"

"I said before that this bowl of yours is a sweet white glaze made by a porcelain factory after the founding of the People's Republic of China, imitating the Qianlong model. The basis is here."

"Then since there are so many characteristics of Qianlong's sweet white glaze, why don't you just say that it is Qianlong's, but that it is an imitation of Qianlong's?"

"Because the Qing Dynasty imitations also have their own characteristics, that is, Yangon perspective, and the glaze is blue-grey;"

"One of the biggest characteristics of modern imitations is that in order to achieve the effect, the glaze is much thinner than before, the engraving lines are rough, the patterns are too simple, and the dark flowers and dark patterns are too clear."

"Although some are imitated into thin tires, they are often uneven. Moreover, you can see through the light that the texture and glaze of the tires are not uniform."

"This is what I said before, the real handcrafted parts. In these parts, it is difficult for modern factory imitations to match the craftsmen of the previous dynasty."

"That's why I classified this piece of porcelain as a modern replica."

"But this knowledge..."

"Yes, this kind of knowledge." Zhou Zhi smiled and said: "Actually, it is a big loophole."

"ah?!"

"Everyone is very familiar with the style of a double circle of blue and white with a six-character year mark, such as the official kiln porcelain of the third and third dynasties of the Qing Dynasty. This approach is adopted from the Ming Dynasty. It does not look bad, but the bowl you have is

This style has become the biggest flaw of this imitation."

"Ah? Why is this?"

"Because these six characters are straight characters, just like the Song style characters we see in newspapers today. This kind of style was not available in the Ming Dynasty."

"The real base of the Ming Dynasty Chenghua Annual System is in regular script. The sun and moon in Ming characters are both drawn in, and the cursors in the initial strokes of Cheng characters are also strongly drawn in. The characters are long and narrow, and the calligraphy style is lively, free, and informal.

The rules show the overall neatness in the irregularity of posture changes, and the base of many official kiln porcelain seems to have been made by one person. This is an important feature of Chenghua porcelain."

"Although this bowl is a fairly good imitation, it is still distorted by the Qianlong imitation at this point. It is a nondescript imitation."

"To sum up, my appraisal opinion is still the same as before. This is a modern anti-Qianlong sweet white glaze eggshell bowl. The craftsmanship is quite exquisite, but it is still a factory product. Compared with the handmade porcelain of modern master craftsmen,

Is there still a gap, let alone the previous generation?”

After saying that, Zhou Zhi didn't bother to pay attention to the surprised old man in front of him. He just turned to Mr. Sun next to him and said, "Mr. Sun, that's all I can tell. I wonder if you have anything to add?"

Mr. Sun laughed and said: "There are many imitations of sweet white glazed porcelain on the market, but they are all far from the sweet white glazed porcelain of the Chenghua period."

"Although the imitation glaze of the Qing Dynasty was white and fine, and although it was manually drawn, the carcass was thicker and relatively even from top to bottom. The glaze surface was smooth, the workmanship was regular, the glaze color was fine and white, and a precious light could be seen from time to time, but there was no glaze in the accumulated glaze.

Lake green phenomenon.”

"Modern imitations, mechanical pottery tires, grouting molding, tire repairs and glazes lack exquisiteness. The glaze color is often mixed with chemical materials, and the color is extremely unnatural. The precious light is not visible, but the 'thief of light' is obviously easy to see."

"If you use light to identify it, the light transmittance of real sweet white glazed porcelain gradually weakens from top to bottom. This is because the thickness of sweet white glazed porcelain gradually becomes thinner from the bottom, waist to mouth."

"As for Qing Dynasty imitations, the carcass is evenly thin and thick throughout the body, so the transparency under light is basically the same."

"Due to the roughness of the panning and the large number of impurity particles in modern imitations, uneven carcasses are common under light."

"Another point is that to see the bubbles under the orange peel, you need to use a 20x magnifying glass."

"Under the lens, the real sweet white glaze porcelain has large, medium and small bubbles coexisting densely;"

"Qing imitation utensils, bubbles are sparsely distributed in size;"

"The bubbles in modern imitations are all about the same size and evenly distributed."

"This sweet white glaze bowl is just as the young master next to me said. Many features are the expression of modern imitations, so he did not make any mistakes."

"At the same time, this is also a rare, vivid and comprehensive lesson on identifying the authenticity of sweet white glaze. It is so hard to explain, doesn't it deserve everyone's applause?"

"Well done, little master! I have learned a lesson!" Immediately, some people who were refreshed by this free class and felt that they had benefited a lot, followed Mr. Sun's words and clapped.

"It's indeed well said!" After the first one, there was a second one, followed by a round of applause and cheers.

Zhou Zhi had no choice but to stand up and bow to everyone: "My level is limited. We need to learn from each other and help each other. Thank you for your encouragement."

"Of course we should learn from each other, but please don't judge people by their appearance." Mr. Sun said: "We must believe that the teachers we invite for Gongmei are definitely leaders in the industry. Not just anyone can do the appraisal here.

As a teacher, he can definitely represent the overall image and level of our Gongmei Shopping Mall, so please rest assured!"

This time the applause from the surrounding crowd became even louder.
Chapter completed!