High ancient porcelain, such as Ru kiln, Guan kiln, Ge kiln, Jun kiln, etc., are more difficult to imitate, but other ordinary porcelain is not difficult to imitate.
And as long as it is copied, it is easy to make it look old.
Especially combined with the hand-polishing method, the high-grade ancient porcelain made by Chen Wenzhe is even more similar.
The hand polishing method is very simple and takes time and effort. You only need to polish the porcelain with sweaty hands for several months after it comes out of the kiln, until the dazzling "fire" is eliminated.
It's simple, it's as simple as it gets, but it requires patience, is time-consuming and labor-intensive, and requires carefulness and thoughtfulness, which is rare nowadays.
The simple method is to use the water grinding method, that is, place the utensils under constantly flowing water, and rub the glaze surface with the flowing water to eliminate the "fire".
If you want to invest some money, then use the oil grinding method.
First rub it gently with a pulp weight, then use a cowhide rubber rudder dipped in oil to rub it to eliminate fine marks and make the glaze surface smooth and moist.
In fact, no matter how these techniques are used to polish porcelain, another technique is used, which is mirror grinding.
This is Chen Wenzhe's unique skill, so it is particularly easy for him to learn other skills.
But others can't, they need to practice slowly.
And being able to practice is also a blessing.
For example, the South Vietnamese workers in the factory now have little technical content in what they do.
For example, the chemical etching method is used to make things look old. At the beginning, Chen Wenzhe used this method to trick the little devils and got his first pot of gold.
Chemical corrosion method is also a more commonly used method, which is divided into acid leaching method, mixed leaching method and oxidation method.
Because the glaze of ceramics is silicate, it forms a transparent glassy glaze with beautiful luster.
Therefore, soaking porcelain in acids such as acetic acid, hydrofluoric acid, nitric acid, oxalic acid, etc., which can react with silicates, can cause glaze corrosion, make the glaze dim, and appear turbid, thereby eliminating the "fire".
Some do not soak, but directly wipe the glaze surface with an acid-soaked rag repeatedly, and the effect can be achieved.
The disadvantage of this method is that the acid corrodes the glaze too strongly, causing the glaze to become devitalized, dull in luster, or even opalescent.
The effect produced by this is very different from the "clam light" that is formed naturally over time.
Under a high-power magnifying glass, countless small holes corroded by acid can be seen, so it is relatively easy to identify.
However, sometimes in order to pursue speed and profit, and the works being processed are not very good, naturally there is no need to bother.
If you want better results, you have to think of something.
As a result, the mixed dipping method came into being.
The mixed soaking method is to mix several solutions together, such as soaking with acetic acid and then using tea water, plant ash water, etc.
This will not only eliminate the "flame", but also create various stains that people mistakenly think are caused by long-term use.
After being treated with acetic acid, the residues of glazed pottery and porcelain with high water absorption are easily absorbed by the matrix.
After doing this, pouring hot water on the surface of the utensil will emit a pungent smell.
What Chen Wenzhe wants to do is definitely not using these chemicals with obvious flaws, but using a door-blocking formula. This cannot be taught easily.
Of course, most of the porcelain produced in this ceramics factory are produced by local craftsmen in South Vietnam. This kind of porcelain of your level does not need to be aged very well.
Glutinous rice
There are many ways to simply treat porcelain. The easier and most profitable method is definitely the oxidation method.
This is to use potassium permanganate, a strong oxidant, to oxidize the glaze. Except that the surface is slightly red, the other characteristics are consistent with those after acid leaching.
Rinse the utensils with water. If you use too much potassium permanganate, the water will turn purple.
Sometimes if you dip your fingers in some water and touch them, your fingers will be dyed purple-brown.
However, after this treatment, if some unique chemical reagents are used, the effect will be better.
For example, the carcass can also be aged through this mixed infiltration method.
Of course, Chen Wenzhe will definitely not spread this method.
He just continued to strengthen his techniques step by step. The consequence of this is that if you want to get a perfect piece of antique porcelain, you need to use different techniques and constantly process it, which is very time-consuming.
If you don't hesitate to spend time and make something seriously, it is also very particular.
It's just that people nowadays are more eager for quick success, even Chen Wenzhe is no exception, so some of the stupid methods he knows have never been used.
Of course, it can also be taught as a secret skill here, and Chen Wenzhe himself won't need it anyway.
There are various methods of distressing, including chemical etching, grinding and polishing, oil staining, soil burial, and high-pressure cooking.
The oil stain method is to dip the oil stain in the range hood in the kitchen with a sponge and apply it on the ceramic surface.
Wipe it clean after an hour and repeat the operation several times to make the ceramic glaze matt and without signs of wear. This method is very cost-effective.
The matting agent matting method is to add a certain proportion of zinc oxide, zirconium oxide and other matting agents to the configured glaze, which can achieve twice the result with half the effort.
Of course, these old-fashioned methods can be identified, just like porcelain using matting agents. Using energy dispersive x-fluorescence analysis, as long as the content of certain metal oxides in the glaze of the artifact exceeds the normal value, it can be concluded that it is modern.
Imitation.
These are relatively simple to say, but you have to be suspicious of everything before you use the most aggressive methods to identify the authenticity of a piece of porcelain.
If you don't understand anything, no matter how simple these old-fashioned methods are, you won't be able to identify anything.
Therefore, don’t think that some old-fashioned methods are simple, most people will be deceived.
Chen Wenzhe knows too much about such simple methods.
For example, the soil burial method is to bury the new porcelain in fine mud. After a few days, take it out and wipe it off with a dry cloth. After doing this several times, you will see a yellowish old color on the glaze.
High-pressure cooking is to use tea and a little alkali to boil the porcelain for a long time to remove the shine.
In recent years, new imitations have been steamed in a pressure cooker to make the glaze lose its luster.
The internal system of the bead that Chen Wenzhe obtained is the civilization inheritance system, which is mainly used to inherit civilization.
But Chen Wenzhe has never passed it on properly. In the future, he plans to slowly pass on these skills.
It is absolutely impossible to pass on porcelain making to the South Vietnamese. High imitation, that is, antique porcelain, Chen Wenzhe does not intend to pass on to the South Vietnamese, but old porcelain can be passed on.
Now it is just passed on to the Chinese people. After working in this factory for a long time, those South Vietnamese workers will naturally learn it.
As for what he does after he learns it, he has no control or control.
Of course, the old-fashioned techniques that are passed on must be basic things, such as some secret techniques, which Chen Wenzhe cannot easily pass on.