"The black glaze of the kiln belongs to the category of ancient crystalline glaze, and the iron content is high. Pen ~ fun ~ pavilion www.biquge.info in the process of high temperature smelting, due to the change of the temperature and atmosphere in the kiln, the glaze produces a peculiar pattern. These glazed patterns are different from ornate paintings or elaborate carvings, they are the result of changes in the glaze in a certain temperature and atmosphere, which seems to be the work of the "kiln god", which produces a special artistic charm, and the ceramic craft industry calls it "kiln change". Because it is not done by man, it is more precious. ”

Wu Tianyuan has been studying the kiln change with everyone in the past few days, which is very difficult, mainly because the temperature and glaze formula are difficult to master.

"In the past few days, the black glaze of our firing kiln has generally adopted the dipping method, one-time glaze, and the glaze layer is generally thick, and the glaze juice is fat. Because the building lamp is burned positively, the glaze layer along the mouth is thinner, and the glaze on the inner bottom is thicker; The outer wall is often semi-glazed to avoid sticking to the bottom of the kiln; If there is a surplus glaze that is easy to flow at high temperature, there will be a phenomenon of hanging glaze, commonly known as "glaze tears" and "glaze drop beads". ”

Lao Tang analyzed: "After the boss's secret recipe, now the glaze tears have basically been cracked, and the yield can reach one percent, which is not easy!" ”

"However, in addition to the glaze tears, there are other five major kiln changes in the kiln, ugin, variegated, rabbit hair, oil droplets, the most magical and precious Yaochang!"

A few people fell into deep thought, it can be said that a week has just started, and the most precious things in the kiln are rabbit hair and yaobian, which are national treasures in Japan. Wu Tianyuan doesn't do it, he must do it to the extreme, and Yao change is the ultimate goal.

He also knew that even if all the secret recipes were deciphered, the Yao Changing Heavenly Eyes would be a treasure of one in a million, or more precisely, a gift from God to mankind!

Geng Lao comforted: "Don't be discouraged, our progress is already very fast, and the next step is to study the black gold glaze." Some of the kilns have a surface as black as lacquer; Some are black and blue, generally speaking, the glaze layer of sauce black glaze is generally thinner, the light element has no lines, the glaze color of the early building lamp is mostly of this kind, the glaze is slightly dull, black but not moist, and rarely hangs glaze. The glaze layer of Wujin glaze in the kiln is generally thicker, "the color is black and moist", and the superior ones are bright and can shine on people, showing the beauty of solemnity and elegance. ”

Old Tang took out the family recipe and said: "Potassium feldspar 20, quartz 12, kaolin 10, calcium carbonate 10, dolomite 10, golden red 16." ”

Wu Tianyuan also took out the formula he had just sorted out and said, "My front is the same as yours, but there are more talc 12 and iron oxide 15 added to the back." ”

"In the afternoon, we still test the effect in practice, and the kiln wants to enter the Japanese market, mainly in four categories." Geng Lao analyzed: "Wujin glaze and glaze tears are the entry level, after all, they have a higher yield and are suitable for middle-class collectors." Rabbit hair and oil droplets are high-end products, with low yield and large variables, which are the favorite of senior collectors. As for Yao Change, it is a treasure, a treasure that cannot be found! ”

Rabbit is the most typical and largest product of the kiln, so that people are often accustomed to "rabbit hair" as a synonym for the construction of the kiln. The so-called rabbit hair is a uniform and fine filamentous strip in the black base glaze, which is shaped like the hair on the rabbit's body.

Due to the influence of kiln changes and other factors, the shape of the rabbit is divided into long and short, thick and thin, and the color also changes in golden yellow, silver white, etc., commonly known as "golden rabbit hair", "silver rabbit hair" and so on.

Song Weizong wrote in "The Great View of Tea": "The color of the cup is expensive and blue, and the jade is the best."

The so-called oil droplets refer to countless small spots with golden yellow or silver-gray metallic luster scattered on the black glaze, so there are "gold oil droplets" and "silver oil drops".

Most of these spots are round and vary in size, ranging from three or four millimeters in diameter to one centimeter in diameter. It is only a millimeter, even as thin as the tip of a needle, and is shaped like boiling oil droplets scattered, which makes people dazzled.

Oil droplets are also a kind of crystalline glaze, which is difficult to fire, has a low yield rate, and is rarely handed down or unearthed. A Southern Song Dynasty oil-drip Tianmu bowl in the collection of the Seikado Bunko Art Museum in Japan is regarded as a national treasure. In Japanese literature, "oil droplets" are precious porcelain products limited to "yaochang". In the modern world of collecting, oil droplets are also a rare treasure in Jianzhan.

The word Yao Chang is recorded in the "Little Song of the Zen Forest", written in the early 16th century in the "Juntai Guan Left and Right Accounts", which divides the treasures of Jianzhan into several levels, among which "Yao Change" is listed as "the supreme divine product of Jianzhan, which is something that is not available in the world."

The so-called Yao Variation is a collection of many irregular dots on the black glaze, the dots are yellow, and the surrounding area glows with a dazzling rainbow-like light mainly blue, hence the name.

Scattered on the inner wall of the building, it changes with the direction of viewing, appearing blue when viewed vertically and shining golden when viewed obliquely. Due to the great difficulty of firing the yao, there are very few pieces that have been handed down to the world, and only four pieces are in Japan's collection, three of which are designated as "national treasures" and one is designated as important cultural relics.

Now Wu Tianyuan has three Yao Transformations in his hands, black, blue, and Dragon Balls, and there is still one red Obsidian in his hand, and he has been looking for it.

A few people hurriedly finished eating, returned to the kiln factory together to continue to study the formula of Wujin glaze, once they encountered a problem, Wu Tianyuan wrote it down, and went back to communicate with the antiques alone, looking for a breakthrough.

With the brainstorming of several top experts, in less than a month, Wujin, Rabbit Hair, and Oil Drops have been successfully tested, and the technology continues to mature, and the next step can be mass production and officially put on the market.

"This is a hundred sets of Tianyuantang celadon, a hundred pieces of kiln rabbit hair and oil droplets, how do you see the operation?"

Yasuda admired all the products in amazement, and said with great admiration: "It is worthy of Tianyuanjun, each one is the most exquisite antique porcelain I have ever seen, especially the oil droplets of the kiln, which is simply breathtaking!" ”

Wu Tianyuan has just returned to the capital, and he has worked hard for more than a month to experience the hardships of porcelain burning. He has his own ability, and the old Tang has inherited the craft for a hundred years, and it is so difficult, no wonder no one has been able to imitate it successfully for hundreds of years.

Yasuda respectfully handed over a plan and introduced: "This is the cooperation intention of our Yasuda family, mainly to use the channels and influence of the consortium to cooperate with Tianyuanjun. Unified pricing according to different levels, of course, the best you can auction by yourself, and finally you have eight and I two! ”

"Oh?" Wu Tianyuan was stunned for a moment, and asked curiously: "Do you agree with this sharing ratio?" ”

Yasuda Masashi assured: "Don't worry, this is the result of my perseverance!" Originally, it was three seven open, but in order to show the sincerity of our Yasuda family, as well as the determination of long-term cooperation, this ratio is no problem! ”

Wu Tianyuan nodded, very satisfied with Yasuda's attitude, money is a trivial matter, mainly because now he is slowly having bargaining chips with the big family! This is the biggest step forward and the beginning of a strong start. (To be continued.) )