Chapter 181: Steady without Waves (both set at 400
For example, blue and white hair color, Yuan blue and white hair color has three types: rich, elegant, and blue-gray.
The rich and elegant ones are made from imported Suma Liqing materials, while the light and elegant ones are made from a mixture of imported and domestic materials.
A considerable part of the blue and white has black spots after firing, and they are darker.
The most authentic Yuan blue and white flowers are all made from imported sumac green material, and the sumac material has a characteristic, which is high iron and low manganese. The blue and white are deep blue with a hint of purple, and the blue is slightly green.
And this is also Chen Wenzhe's main goal in the later period.
It used to be easy for people to see this, but now it has a layer of impurities and the processed blue and white color. If you want to look here, it is difficult to find the problem.
Now that the color is right, it depends on the crystals contained inside.
Here, there is another pit.
It is really not easy to complete a real high imitation of Yuan blue and white.
The main component of "Suma Liqing" used in the Yuan Dynasty is cobalt oxide, with a small amount of iron oxide.
Under the influence of high temperature, the iron oxide in "Suma Liqing" will aggregate with each other in the silicate liquid state, forming dark crystal spots.
Observed under a microscope, there are mostly irregular sauce-brown spots sinking under the glaze.
Most modern imitations simply add iron oxide powder to domestic blue and white.
Under the influence of high temperature, these iron oxides will quickly float to the surface of the glaze to form crystals.
At this point, the counterfeiter did a good job, and Chen Wenzhe was not worried at all.
Next, things will be simple. After looking at a few important points, the rest is to look at the type of device.
For example, most Yuan blue and white vessels have wide and short ring feet. Generally, the bottom of the vessel is not glazed, but glaze spots can be seen on the inside and bottom of most vessels.
Also, the carcass of Yuan blue and white jars and bottles is mostly four sections with three joints, and there are also five sections with four joints.
The joints are at the bottom, abdomen, and neck respectively. The joints are glued with mud. There are obvious bulges at the joints, and traces of mud extrusion can be seen at the joints.
These obvious features are better imitated.
Especially the flint red, it is perfect without copying.
When looking at porcelain, look at the bottom first. At the end, you still have to judge the authenticity of the porcelain through the exposed area at the bottom of the bottle.
The bottom of Yuan blue and white vessels is not glazed and is called rough bottom or sand bottom. The signal transmitter is hidden in one of the trachoma.
Of course, if you don't destroy it, you won't be able to find it.
Moreover, everyone's eyes are now attracted by the red spots appearing on the rough ground, which is commonly known as flint red. They have no idea that there is evil intention here.
As long as the signal transmitter is not exposed, they can look at the bottom of this plum vase however they like. Anyway, it is a pure old bottom!
Therefore, the more they look at it, the more satisfied they become, because the characteristics of this piece of porcelain are so good.
This real natural aging phenomenon, if Chen Wenzhe were asked to age, he really wouldn't be able to do it to this extent.
At this time, he had the urge to upgrade his distressing skills.
However, he held back because old Yuan blue and white pieces required too many skills.
Not to mention the blue and white hair color, there are other things like tire clay, vessel shape, patterns, rims, flint red, crystals, etc., all of which must be aged.
Therefore, it is difficult to truly imitate a Yuan blue and white piece.
Just take Chen Wenzhe, if he hadn't encountered this high imitation Yuan blue and white piece, he would never have thought of imitating one himself, because it was too difficult.
Just like now, the little devil Soji Fujino is causing trouble again.
He actually took out a camera that could take pictures from a bag, and it also had a searchlight. What was this?
When he first saw such high-tech equipment, Chen Wenzhe didn't react yet, but he soon realized something was wrong.
That probe can penetrate deep into the plum vase.
The plum bottle is a wine vessel, and later evolved into an ornamental object. The mouth of the bottle is so small that Chen Wenzhe himself did not even think about checking the inside of the plum bottle through the mouth of the bottle.
But the little devil thought of it, and he used high-tech equipment.
At this time, Chen Wenzhe definitely felt guilty. What he was most afraid of was the master of fraud, Tai Lang.
If he couldn't think of anything and wanted to leave a name on this piece of Yuanqinghua, such as Qiaoshou Liu or something, then the secret would be exposed this time.
It's too late to say anything at this point, I can only leave it to fate.
Things are not bad. As the probe goes deeper, the first thing you see is a light red flint red.
Seeing this situation, Chen Wenzhe felt happy.
This is professionalism. If you stay steady and don't waste money, he will definitely make a profit.
This piece of Yuan blue and white is a pure high imitation, even the inner wall is imitated very well.
In other words, this is the natural situation. The faker did not touch the inner tube at all!
After all, this is an old tire that has been reburned, and the internal conditions are deliberately full, so it is normal.
The inner wall of Yuan blue and white is generally not glazed, and only has a light flint red color.
There are still some traces of manual labor in the production process.
This can be seen very clearly under the illumination of the camera.
While checking, Fujino Sooharu also took a lot of photos.
When you enlarge the photo, you can see it more clearly, so some artificial traces can also be seen more clearly.
For example, some cleaning marks, or even some finger prints and fingerprints.
Unexpectedly, the shape of this Yuan blue and white vessel was not very good, but some small details inside were handled very well.
At the very least, all the artificial traces inside have been left behind.
It doesn't look like it was done on purpose, it should have been there before. This can be regarded as a detail that was got right unintentionally.
Therefore, to make a high imitation of Yuan blue and white, you must start with clay training, otherwise, if there is a problem in any link, it will be identified by others.
As for the fingerprints left on the inner wall of the plum vase, it is more difficult to deliberately fake them.
Many people would never think that with such a small mouth as the plum vase, who could see what’s going on inside?
Now Soji Fujino has seen it.
Seeing the internal situation, Fujino Sooharu was obviously very satisfied.
Yuan Dynasty utensils mostly used manual drawing or blanking molding processes, which inevitably left obvious fingerprints and swirls on the inner walls of bottles, jars and other utensils.
If no fingerprints or swirl patterns are found on the inner wall of the object, it is a low-grade imitation produced using modern injection molding technology.
Also, anyone who knows the craftsmanship of Jingzhen ceramics knows that there are two types of knives used for trimming blanks. One type is called "strip knives", which are used to trim the inner walls of objects;
One type is called "ban knife", which is used to trim the outer wall and foot ring of utensils.
The emergence of the "ban knife" has a history of at least more than 2,000 years, while the "tiao knife" only appeared during the Kangxi period of the Qing Dynasty.
In other words, porcelain before Kangxi only repaired the outer wall, not the inner wall.
Only after the mid-Kangxi period did the inner walls of porcelain begin to be renovated.
Some imitators don't understand this and just make the products based on the catalogues, often adding superfluous details to the inner walls.
Therefore, if you see Yuan blue and white with modified inner walls, it is an imitation.