My system is not decent

Chapter 1228
It is still difficult for ordinary people to distinguish the fraudulent means of old tires and new paintings. If identification is needed, it is necessary to refer to factors such as whether the color glaze is in place and whether the glaze is moist.

There are also old glazes and new tires. In recent years, some past glazes have been unearthed one after another in Jingzhen.

The imitators will use the old glaze water to decorate the new tires.

When encountering this kind of porcelain, you should focus on observing the tightness of the glaze and the tread when appraising it.

There are many methods of such deception, such as old parts and new devices.

Incomplete unearthed objects such as old feet, streams, bottoms, mouths, necks, etc. are often assembled in new porcelain;
This kind of falsification is very confusing, and you should carefully compare whether the various parts of the whole device are consistent.

The last is refiring. There are two cases of refiring. The first one refers to repairing the incomplete parts of the old utensils and then putting them into the kiln for refiring.

After leaving the kiln intact, the price will increase several times.

In doing so, it is best to choose a residual vessel with a smaller incomplete part, such as the punch of the body or the knock on the mouth of the vessel.

The second is to crush the old porcelain into powder, add other ore raw materials, and make a green tire.

In the present era, it can be said that counterfeiters and counterfeiters are able to innovate every day on the road of making old ones.

From hydrofluoric acid to potassium permanganate, and then to traditional Chinese medicine, it can be said that it is a pattern analysis and keeps pace with the times.

What I mentioned above are all imitation methods, and the "old-fashioned" method can be roughly divided into two stages.

The first stage is from the 20s to the middle and late 80s.

Old-fashioning mainly imitates the characteristics of unearthed artifacts. The common method is to polish the new glazed surface with sandpaper, or to corrode the glazed surface with hydrofluoric acid.

Then paint muddy water, muddy water penetrates into the damaged glaze, resulting in the effect of excavation.

However, this method is slowly being eliminated today.

On the one hand, it is easy to identify the authenticity, on the other hand, with the improvement of living standards, the collectors' requirements for appearance are also increasing.

At this time, the old way of doing things is no longer suitable for the new situation.

From the middle and late 20s to today, it is the second stage of making old, mainly imitating the characteristics of handed down products.

Due to the proper protection of the handed down items, generally there will be no damage to the glazed surface of the unearthed utensils.

The glaze surface has the characteristics of devitrification, the glaze is warm and moist, and the bottom tire is relatively delicate, and the inner wall can be seen with "chicken claw patterns" and other characteristics.

For the purpose of cost saving, medium and low-grade imitations often use potassium permanganate on the glaze to create an effect.

For high-end antique porcelain, the method of soaking in traditional Chinese medicine will be used to create the effect of old porcelain.

However, there are not many masters who master this old-fashioned method.

At the end of the story, this method of using potions and making high-quality antiques is generally secret.

However, for Chen Wenzhe, this is a small trick, because among the Suihou's pearls, there are too many old methods.

Besides, when he learned how to make porcelain, he started from making old ones.

At the beginning of accepting a little bit of old-fashioned inheritance, he used to use potions to make old porcelain.

It can be said that if he can make qualified Yuan blue and white, and then make old ones to produce the effect of antiques, it will be really pediatrics.

And one of the most important means is medicine and cooking.

At Chen Wenzhe's current level, he has reached the pinnacle of using various methods to make things old.

Just like using traditional Chinese medicine to boil and make old, there will be slight differences due to different objects.

For example, in order to create the light effect of pastel porcelain clams, a little alcohol will be added to the traditional Chinese medicine.

In order to eliminate the luster of underglaze colored porcelain, a little hydrofluoric acid will be dropped.

Although he seldom makes old ones now, he still knows very well that a small bottle of hydrofluoric acid can be used for half a year.

There are many other ways to make the surface old, such as boiling with tea, smoking with incense, coating with fine coal ash, etc.;
As for the chicken claw pattern on the inner wall of the utensil, it can be imitated by hitting the glazed porcelain with a small hammer when it just comes out of the kiln.

If you pay attention to the technical content, then use the calendering method.

This technique is mostly used for glazing the surface of unglazed pottery.

The specific method is to first heat the colored part to 60°C-70°C with a hot hair dryer or an oven, and then apply a layer of paraffin wax or Sichuan wax.

When painting, first apply the wax on the cloth, and then use the cloth to rub the colored or imitation glaze parts.

Then use hard and smooth tools, such as jade rollers and agate rollers, to roll the surface until the desired luster appears, and finally wipe it with a silk cloth.

This method will leave subtle traces, which can be found by careful observation.

In recent years, a new kind of high-fine sand has been used for polishing. The old antique glaze can only be found under a high-power magnifying glass.

It should be noted here that a high-power magnifying glass is required, and the leak-picking magnifying glass used by ordinary insiders cannot be seen.

In fact, if you want to get good results, you still need to use polishing.

This method is the most widely used, divided into two kinds of manual polishing and mechanical polishing.

Manual polishing is to dip a silk cloth into the abrasive paste, hit it on the soft polishing part of the imitation glaze surface, and then clean the polishing part with gasoline and ethanol respectively.

If necessary, add some paraffin wax or Sichuan wax, and throw it with silk cloth.

The gloss produced by this kind of throwing is softer.

In addition, you can also use a craftsman's grinder and a high-speed turbine dental drill for polishing, which are mostly used for restoration of Ming and Qing porcelains.

Mechanical polishing can not only improve work efficiency, but also improve polishing quality, and the light thrown out has a better enamel feeling.

Following the sun's rays, use a magnifying glass of more than ten times to inspect the glaze layer on the surface of the porcelain. The wear and tear on the surface of the ancient ceramics is criss-crossed, with different thicknesses and shades, which is not the case for new ceramics.

In fact, there are many ways to make old, as long as it can save the cost, there are many troublesome ways, and some people use them.

For example, the varnish method, this method is to spray a layer of glazing paint on the surface of the imitation glaze coating.

At present, the better glazing material is thermosetting acrylic varnish, the coating is transparent, colorless and bright.

After spraying, it should be dried and cured. The cured coating can be polished with polishing paste, and the effect will be more ideal.

However, the surface of porcelain processed by this method can be clearly seen under the microscope, and the regular movement track left during processing can be clearly seen.

However, to identify a piece of porcelain, who would take a microscope to check it?

To make the appearance of old porcelain, the most important thing is to remove the fire.

This is also the first skill Chen Wenzhe mastered after learning old-fashioned techniques.

But now his flame removal technique has been improved too much.

For example, with the simplest hand-grinding method, he can make it look like the real one.

This is handicraft work, and his most powerful thing is the dexterity of his hands.

However, this method is more time-consuming.

Hand grinding, as the name suggests, means that after the porcelain comes out of the kiln, it is ground for several months with sweaty hands until the dazzling "fire" disappears.

This ordinary person can't stick to it, and it's impossible to play it carefully for a long time.

However, as long as you want to use this method to make old ones, you must be a master.

(End of this chapter)