There are too many pits in the 180th chapter (both 300
The price of Yuan blue and white flowers is too high and the quantity is very rare. No one wants to give up after encountering Yuan blue and white flowers. However, everyone who encounters Yuan blue and white flowers cannot be too cautious.
Especially in recent years, the Yuan blue and white craze in the ancient porcelain collection circle has continued to heat up. It can be said that there are hundreds, thousands, or even tens of thousands of "Yuan blue and white" pieces on the domestic market and in the hands of collectors. The debate about authenticity has stirred up debate.
Many ancient porcelain lovers are confused.
Nowadays, the Yuan blue and white porcelain in ancient porcelain circles, and the identification of Yuan blue and white porcelain, generally refer specifically to Jingzhen Yuan Dynasty blue and white porcelain.
The blue and white porcelain of the Yuan Dynasty in Jingzhen can be divided into "zhizheng type" fine porcelain, which is decorated with imported sumac green materials, and ordinary porcelain, which is decorated with domestic blue materials.
It turns out that this porcelain uses domestic chemical green material, which is easy to identify.
But now, after Chen Wenzhe's cover-up and transformation, ordinary people really can't recognize it.
At the very least, anyone who is not a top expert who often comes into contact with authentic Yuan blue and white products will never recognize it.
Chen Wenzhe still has this kind of confidence.
However, the so-called experts in the market are afraid of being deceived, so no matter who encounters Yuan Qinghua, they are very cautious.
If it weren't for this, Wu Er's high imitation would have been easily fooled by him.
However, if you want to sell at a high price, you will naturally face high risks, so any buyer who is even a little cautious will not be fooled.
Now it fell into the hands of Chen Wenzhe. He modified it to see if he could fool these little devils.
At this time, Fujino Souji carefully lifted the plum vase. He held the thing in his hands and carefully felt the weight of the plum vase.
Especially the bottom of the bottle. If it is connected to the bottom, the bottom of the bottle will inevitably become heavier. If you feel it carefully, you will find a trace of disharmony, and even abnormal weight can be felt.
From this small gesture, Chen Wenzhe knew that this guy knew Yuan Qinghua very well.
When you hold it up, you are not only looking at the bottom of the bottle, but also evaluating the entire shape of the bottle.
You should know that the blue and white porcelain of the Yuan Dynasty was heavy and strong, with thicker walls and more large vessels.
Therefore, the light and fluttering thing is definitely not Yuan blue and white, and as for the glaze color, they can't tell anything about it.
Although the chemical green material used originally turned out to be pure gray, which can be regarded as the authentic Yuan blue and white hair color, if you look closely, you will find that the blue and white are very pure, but now there are impurities and Baoguang.
And this impurity is not only reflected in the blue and white materials, but also in the fetus.
Because it contains a lot of impurities, there are mostly iron-brown dots in the tire. Chen Wenzhe didn't need to do these, as the original master had already done it perfectly.
"The fetus is made of kaolin hemp soil."
"White but not fine, that's right!"
"Well, you can see a lot of pores!"
The characteristic of kaolin macang soil is that it is white but not fine. Because the crushing conditions and techniques were limited at that time, many pores can be seen.
Today's tires are very thin and have no pores. In the past, the old tire mud has gone through the process of aging, and the organic matter will change after aging.
Therefore, its tires have a delicate feeling. The tires made now are not stale and appear very dry.
These characteristics are very obvious, because this is originally an old tire, old clay, not old porcelain.
“Not much sign of trimming!”
“There are some marks, but there are relatively few repairs!”
Chen Wenzhe listened to the discussion between Fujino Souharu and Qian Kaiming and found that they really had something to offer.
"Isn't it three-point drawing and seven-point trimming?" Honda asked curiously.
"On the contrary, the plasticity of modern mechanically processed porcelain raw materials is generally not as good as that of hand-prepared raw materials in the Yuan Dynasty. The popular ceramic molding process in modern Jingzhen is said to be: three-thirds of drawing and seven-cent repairing.
In other words, the shape of the utensils was mainly made with knives, but the craftsmanship of the Yuan Dynasty was just the opposite. It was seven parts drawing and three parts repairing. The current plum vase looks pretty good, with enough weight and blue and white color.
That’s right, there’s no problem with the fetal soil, and with the production process, it can be said that there are no flaws.”
Chen Wenzhe learned how to make Yuan blue and white flowers in his dream. It was just basic manufacturing, and he only knew some basic craftsmanship.
However, Chen Wenzhe knew that what Soji Fujino said was right, and he probably had a deep study of Yuan Qinghua.
However, no matter how much you study, it’s all in vain if you haven’t really mastered it.
In fact, there is a contradiction here. The walls of large Yuan blue and white vessels are relatively thick, but they can be stretched very thin when the embryo is drawn.
This is mainly due to the fact that the Yuan Dynasty mud has strong plasticity, so it can be stretched very thin.
Therefore, the upper part and the inside of the object do not need to be modified at all, but only the lower part and the ring foot need to be briefly modified.
Therefore, the rims and necks of Yuan Dynasty utensils have smooth lines, rounded shapes, and no knife marks.
The blanks of modern imitations are very thick, and not only the upper part must be repaired, but also the inner wall must be repaired.
Therefore, the lines are stiff, regular and full of knife marks.
Unfortunately, this one was made very neatly. Perhaps because I was too thin when drawing the embryo, the entire embryo was a little deformed during firing.
There is nothing that can be done about this. The skill of ancient people is to advance through exploration.
Many times, they just try their luck when firing porcelain. If they are not lucky enough, the fired porcelain will change shape. What can you do?
This situation is generally called kiln change!
This is what Chen Wenzhe is most afraid of. If there is a problem with the shape of the device, it will probably arouse suspicion. At that time, everything will feel wrong.
Obviously, it is not easy for a non-professional ceramic craftsman to find problems with the shape of the vessel.
Therefore, at this time, Fujino Souharu and Qian Kaiming had already begun to study the bubbles in the blue and white.
It turned out that Chen Wenzhe had not thought of this. After discovering how seriously they studied, Chen Wenzhe remembered that there was also a big flaw in the bubble.
However, the flaw is not very obvious. Since they did not find the problem with the shape of the vessel, they certainly would not find the problem with the kiln.
Old Yuan blue and white were all fired in firewood kilns, but most imitations now are fired in gas kilns. The two processes are different, and the chemical and physical changes of the enamel are also different.
Especially the formation process of bubbles in the glaze is different. The bubbles fired in ancient firewood kilns appear to be of different sizes and bright.
The bubbles fired in modern gas kilns are finer, of alternating sizes, and opaque.
This is only a relative term. If modern counterfeiters use firewood kilns to imitate utensils and conduct in-depth research on the shape, decoration and other aspects of the utensils, it will be difficult to judge the authenticity.
After Soji Fujino took out the magnifying glass, Chen Wenzhe breathed a sigh of relief again.
Instead of looking at the bubbles, now you are looking at the crystals inside the glaze.
In this regard, Chen Wenzhe is still very confident, because the faker did a very qualified job.
From this we can also see that if Yuan Qinghua doesn’t touch it, he won’t touch it, because there are too many pitfalls inside.