My system is not decent

Chapter 1093 Unique Unmarked Official Kiln Ware

In history, cowpea red porcelain was produced for a short period of time, so the number handed down from generation to generation is very small, and it has always been the target of collectors.

The Jincheng Museum has collected a Kangxi Cowpea Red Glazed Taibai Zun. Its glaze color is red and green, showing a strange interest like peach blossoms in spring.

Just like Hong Beijiang's poem from the Qing Dynasty said: "Green is like the first birthday of spring water, and red is like the morning glow when it is about to rise."

Most of the cowpea reds handed down from generation to generation are small pieces. Generally, the bottom of the utensils has the official kiln mark of "Kangxi Years of the Great Qing Dynasty" in three lines and six characters in regular script. They are mainly stationery utensils used by the Kangxi court.

Although there was a small amount of firing during Yongzheng, the glaze color was dark.

After Yongzheng, it has been difficult to see.

The more famous cowpea red porcelain, in addition to the previous Kangxi Taibai Zun, there is also a brush washer.

The cowpea red glaze wash is also from the Kangxi period of the Qing Dynasty. It is 3.9cm high, 8.2cm in diameter, and 7.5cm in foot diameter.

I have made a lot of Ru Kiln brush washers recently, and now making a Kangxi cowpea red brush wash is a piece of cake for Chen Wenzhe.

However, when applying glaze, you need to pay attention.

This pen washes the mouth and circles the foot.

White glaze is applied inside, and cowpea red glaze is applied outside, with green moss spots.

White glaze is applied on the soles of the feet, and the blue and white "Made in Kangxi Years of the Qing Dynasty" is written in three lines and six characters in regular script.

Because cowpea red glaze is a kind of high-temperature color glaze with changeable color, which is fired with reducing flame, so in the Kangxi period of Qing Dynasty, cowpea red porcelain was also a rare variety among copper red glazes.

Its basic hue is like the red of a ripe cowpea, however, this is the basic color.

After the cowpea red ware embryo is made, the results of firing in the kiln are not the same.

As mentioned earlier, after successful firing of cowpea red porcelain, there are differences in the finished products.

The difference between high and low is based on color. Due to the influence of the firing atmosphere, the color of cowpea red glaze is ever-changing.

After the final firing, the effect can be better or worse.

Good or bad, it must be distinguished by whether it is beautiful or not.

Therefore, cowpea red glaze is difficult to control. It is really a variety of colors that come out of the kiln, and it is really ever-changing.

If it is like a good direction change, there are generally several situations.

or in a dusky pink, with dense spots of crimson;
Or dark red gradually fades to light red;

Or partially light yellow or light green;
Others are flushed in dark and light green, showing the interest of moss covered in spring waves of peach blossoms.

These changes are all due to the influence of a series of factors such as glaze composition characteristics and glaze viscosity changes.

As long as you grasp this point, although the color of the final fired product is still different, there will be no one who thinks about it too often.

After all, Chen Wenzhe has experience, and he must avoid the uneven gray and black "donkey liver, horse lung" color, and try his best to produce a bright and bright glaze color, the whole body is uniform, clean and flawless, red like the morning glow.

The root of all this is that red glazed porcelain contains a moderate amount of copper.

This amount is the key.

Chen Wenzhe clearly knew that in order to successfully fire good cowpea red porcelain, the prepared glaze must contain 0.3%-0.5% copper.

In this way, in a high-temperature reducing atmosphere, it will burn bright red.

This kind of cowpea red glaze will bring people a more profound aesthetic feeling visually.

It is because of its unique beauty that Chen Wenzhe fired a batch of rare cowpea red porcelain while making apple green glaze and apple green glaze.

And to achieve this, you need to start to let it change, kiln changes appear.

At this time, the goal becomes green as green as spring water.

Apple green is a kiln-varied color of cowpea red. The glazed green moss is connected into pieces with red halos in between, which is similar to the rich color of fresh apples.

However, if you want a perfect apple green glaze, you still need to control the content of copper.

The cowpea red made by JDZ should be light red under normal circumstances.

However, when the process conditions change, a large number of green spots sometimes appear in the red area, and even form a single piece.

This kind of green spot is "apple green".

The ancients regarded it as a miracle to burn cowpea red and turn it into apple green, so it was called kiln transformation.

Many modern studies have uncovered the mysteries.

Wherever there is apple green, its copper content is several times higher than that of the red parts on the same vessel.

This shows that the formation of apple green is due to the enrichment of copper in local areas.

Apple green, named for its color close to fresh green apples, has no obvious irritation to human eyes.

The "kiln change" color of cowpea red, if the green moss on the glaze surface is connected into pieces, and a blush appears in it, which is similar to the rich color of fresh apples, this is the top apple green glaze.

The coloring mechanism of fruit green is that the product is mistakenly oxidized in the final stage of the kiln, and copper becomes copper oxide, causing most or all of the glaze to turn green.

Apple green can be said to be the failure of cowpea red, but it has the unique taste of "covered with moss in the spring waves of peach blossoms", and it is a very precious variety.

Thoroughly study the key points inside, if you want to burn apple green and apple green, there is no problem at all.

Therefore, it is not difficult for Chen Wenzhe to make kiln-transformed porcelain such as apple green.

It is enough to increase the copper content in the glaze. The other firing processes are the same as cowpea red porcelain. At most, the temperature is different when it is fired in the kiln.

After completing the production of cowpea red and apple green porcelain, the most classic Langyao red and Langyao green are next.

Lang kiln porcelain is a successful product made by Lang Tingji, who was the governor of Xijiang during the Kangxi period.

Because he loves ancient ceramics and has a lot of research on ceramics, Emperor Kangxi gave full play to his expertise.

During the 44 years from the 51th year of Kangxi to the 7st year of Kangxi, he shouldered the post of Jingzhen Porcelain Supervisor, so during this period, the products of Jingzhen Royal Kiln Factory were called Lang Kiln at that time.

Lang kiln green is made of lime glaze containing copper oxide, which appears green in an oxidizing atmosphere and belongs to verdigris glaze.

Usually after hanging the glaze, it is fired at a high temperature of about 1300 degrees.

However, due to the complicated process, it is extremely difficult to control the firing temperature, and the yield of ideal emerald green glazed porcelain is extremely low.

Therefore, the stock is very small, and the products are often small pieces.

Judging from the existing porcelain pieces and objects, Lang Kiln Green has the following obvious characteristics.

The green glaze layer of Lang kiln is uniform and thin, the glaze color is stable, emerald green, bright and gorgeous, and the glaze has a strong glass-like luster, which seems to have a jade-like feeling.

Then there are the "fly wings" and "Lang Buliu" mentioned before.

Hesitantly, the characteristics of the green glaze of the Lang Kiln are too obvious, so even if the Lang Kiln has no deposit, it is recognized as an official kiln by the world.

Generally, official kiln wares of the Qing Dynasty must have this dynasty's style, but Langyao green does not.

Of course, Lang Kiln Red Porcelain has no official kiln mark, but the collectors all agree that it is a unique unmarked official kiln ware.

Since this is also a copper red glaze, it is not much different from the firing and kiln transformation of cowpea red, so firing Lang kiln wares is easier for Chen Wenzhe.

(End of this chapter)