For example, in puddles or in the eyes of broken bubbles, there are often traces of old stains, smelly black spots, or yellow water spots.
This is an important feature of ancient porcelain, and it is a rare thing that Chen Wenzhe can say.
The two old men also told Chen Wenzhe some secret techniques, such as water flow marks.
Water marks refer to the traces of water vapor evaporating from objects around the ancient porcelain that have accumulated and flowed in a closed space for hundreds of years, giving it a sense of movement.
It is usually dark yellow and difficult to clean.
The bubbles immersed under the broken glaze form yellow water spots.
These things all have cause and effect on each other, and they certainly don’t appear out of thin air.
In this way, the two old men talked about a way to make old porcelain, or the characteristics of ancient porcelain. Chen Wenzhe reciprocated the favor and went a step further to talk more deeply.
The two sides kept coming and going, and the conversation was considered pleasant.
The technology of making antiques is different from that of making porcelain. If you want to do it perfectly, you must understand what antiques are.
Ancient, how ancient is it? In other words, you need to know what characteristics the porcelain of various eras has until now.
Just like the yellow water spots I just mentioned, what are their causes? What are their symptoms?
The cause of yellow water spots is the same as that of yellow water lines. The difference is that yellow water spots have no obvious dividing line and are not linear, but patchy.
The ancient porcelain with yellow water spots must have had its walls and cellars destroyed in the early years. For some reason, the ancient porcelain was still in its original position, and it took several years before it became available again.
If the yellow water spots penetrate the porcelain bone, it is absolutely genuine and cannot be imitated in decades.
As for the yellow water line, many ancient porcelains have a horizontal yellow line inside and outside. The line is wider and the color is gradually darker. There is a very eye-catching dividing line on one side of the yellow line. The closer to the dividing line, the darker the yellow.
.
This yellow water line has penetrated into the porcelain bone, and even penetrated into the porcelain bone. It has not faded for a hundred years, and even soaking and cleaning for ten years has no effect.
Note that there is only one dividing line between genuine products.
If you look into why there are obvious dividing lines, you will naturally understand another series of tricks.
This feature now has imitations, the difference is that the dividing line is not clear, or multiple dividing lines are concentrated together.
In addition, the imitation features made by imitators can be easily washed away.
If it was forged twenty or thirty years ago, that's another story. Since it's difficult to clean after a long time, another identification method needs to be found.
If there are multiple dividing lines, it must be false.
Because all Chen Wenzhe made this time was pastel porcelain, he also specifically mentioned yellow spots on the stylus.
This term is used exclusively for the identification of pastel multicolored glazes and painted paintings.
The outline of the glaze painting is drawn with an iron pen. The strokes are darker and the lines are rougher. The rough areas are easily contaminated. As time goes by, various colors are attached, with yellow being the main one.
In addition, if it has been immersed in yellow water for hundreds of years, its roughness will be more difficult to clean and the yellow spots will be more serious.
This is mainly an important basis for identifying whether it is handed down from ancient times, whether it is newly released, or whether it has been released for a long time.
Some people also wrote articles calling this "black color purple light".
At this point, Chen Wenzhe has said a lot, very deeply, and even very thoroughly.
Such performance naturally impressed the two old men with admiration.
I have long known that Chen Wenzhe is powerful, but after seeing him, I will inadvertently underestimate him because he is too young.
Now they have put away their petty thoughts and started to take it seriously.
Since Chen Wenzhe mentioned macula, they can't let young people underestimate it!
Speaking of the various plaques on porcelain, the two old men sang and talked about several types of plaques on ancient porcelain.
Like rust spots, they are divided into blue and white rust spots and tire glaze rust spots.
Gu Mo
Ancient porcelain has become water-soluble due to weathering over time, so the rust spots will become deeper as they are washed away.
All natural blue and white materials will have rust spots, but the intensity is different.
When it comes to plaques, there are too many, such as old acid plaques, which are plaques formed by long-term exposure to acidic organic matter.
The scars are deep into the fetal bones, the pits are obvious, and the edges of the pits have sharp angles.
The acid bite spots on the imitation products are sharp, blurry, and only superficial.
There are also sun spots, which appear old yellow and reddish.
This is a spot formed by being exposed to outdoor sunlight for more than ten years.
Its spots can be seen through the porcelain surface, and the inside and outside are consistent.
When the fetus is broken and viewed, the color of the fetus is also stained red and yellow by the sun.
Then there are water vapor spots, which are different from yellow water spots. They are caused by the accumulation of small amounts of water vapor over a long period of time and remain stationary for several years. They are visible when viewed directly.
In addition to colored water spots, there are also colorless water spots. Because they are colorless, they are not easily felt. You have to look sideways to look for them. There is a slight color difference from the surrounding areas and they cannot be washed away.
Finally, there are obvious peeling spots, and the glaze bubbles are broken. When rubbed, the broken remains gather together and can be perceived by people.
Before and after rubbing, the glaze surface has changed significantly when observed under a magnifying glass.
Ancient porcelain cannot withstand the friction of human hands due to weathering over time.
Speaking of friction, those who know it will naturally know that under certain circumstances, ancient porcelain will have water marks, which are also friction marks.
If not, it is a fake. This is also an important piece of evidence to identify it as ancient porcelain, and it is easy to identify with the naked eye.
Chen Wenzhe mentioned Huangshui Ban, and Mr. Zhou talked about more various plaques.
In the end, water marks and so on were introduced, which was not the same, which made Chen Wenzhe feel a bit slapped in the face.
What happened next was completely beyond his expectation.
Did these two old men come here this time specifically to combat his arrogance?
This makes Chen Wenzhe a little doubtful about life. He is also very knowledgeable, but in terms of making things old, he is really not as good as others who have inherited hundreds or thousands of years of heritage.
Naturally, Chen Wenzhe did not want this situation to continue.
So no matter what the two old men said next, he had to answer a few words.
And when he talked about golden spots, Mr. Li talked more, and they were all kinds of plaques. In the end, he even mentioned mercury Qin.
This is another feature of ancient porcelain that Chen Wenzhe has never encountered before. If he accidentally encountered this kind of porcelain and copied it, he would definitely be slapped in the face.
The formation of mercury chloride is similar to the formation of gold spots. The formation of gold spots is due to the extrusion of gold vessels.
As for mercury Qin, ancient porcelain will stick to mercury if it comes in contact with mercury for a long time, making it extremely difficult to clean.
So far, no imitators have been seen.
It’s not that it’s impossible to imitate. If it were really impossible to imitate, Mr. Li wouldn’t mention it.
But if this feature is not necessary, generally no one will imitate it because mercury is poisonous.
Besides, it is a bit troublesome to imitate. It is very similar to golden spots. It is not difficult to imitate and even everyone knows how to imitate it. However, it is very troublesome to imitate it.
What should be noted here is that the concepts of mercury on ancient porcelain and bronze are different.
In order to prevent corrosion, ancient people often used mercury.
In the tomb of Qin Shihuang, a large amount of mercury was used. Copper was used as mountains and mercury was used as rivers.
Mercury chloride means that the ceramic is stained with metallic mercury.