Chapter 321 Exactly the Same!

Pointing blue is actually similar to painting.

It's just that the painting is on paper or canvas, and the dot blue is on the carcass of cloisonné.

After fixing the bowl tire, Li Yi sucked up the glaze with a straw, held a blue point gun in one hand, and filled the glaze with the Wanshou Wujiang bowl as a sample.

The gold wire pattern has already made grids. Li Yi only needs to fill the grids with the glaze from the straw, then use an absorbent cloth to absorb the water, and use the blue gun to compact it.

But this step, Li Yi did it very carefully.

These glazes are all fine powders ground from some minerals.

In their state, they are actually sand.

Therefore, in the dream space, the step of spotting blue is also called Shangsha by craftsmen.

Dot blue is not just filling in the adjusted color directly into the grid, it needs to pay attention to steps.

Glazes are all fine ore particles, which have poor adhesion and will lose color during the firing process.

Therefore, pointing blue and burning blue should be carried out alternately, at least three times.

The glaze used for indigo every time must be adjusted and repaired according to the effect of the previous firing to form a color gradient effect.

After starting to click blue, Li Yi closed his mouth and stopped talking.

This step needs to be quiet, the heart must be quiet, and the hands can be steady.

When the hands are steady, the work is clean.

The glaze color of cloisonne must be pure and cannot be cross-colored, so when ordering blue, it is necessary to ensure that there is no glaze pollution.

Therefore, when ordering blue, you must be careful.

No one in the room spoke, and everyone was infected by Li Yi's serious look.

Geng Wanhua and Cai Yi even held their breath, for fear of affecting Li Yi.

Now they really want to know what kind of effect Li Yi's cloisonné will have.

Soon, after Li Yi filled the glaze for the first time, he sent the bowl tires into the kiln and fired them.

The reason why cloisonne is called cloisonné "blue" is because its first glaze is often sapphire blue or peacock blue glaze as the background color.

The first glaze on Li Yi was no exception.

After sending the bowl tires into the kiln, Li Yi did not leave, but stood at the mouth of the kiln, staring at the bowl tires in the kiln.

The melting point of cloisonné glaze is probably in the range of 700-900°C.

So Li Yi didn't adjust the furnace temperature, and kept the kiln at 800°C.

The purpose of firing is to melt the glaze and adhere to the carcass.

But to get the glaze to melt just right, you have to rely on the eyesight of the master of burning blue.

In the dream space, it took Li Yi more than seven years to learn how to burn blue before and after.

However, this technique is difficult to say, and simple to say, in fact, it is to observe the reflection of the glaze.

Once the so-called "Baoguang" appears, it proves that it has been burned.

After the first firing was completed, Li Yi took out the bowl tire.

Putting the bowl tires into the water, he cleaned the blue tires and dried the water with fire.

Looking at the bowl tire in Li Yi's hand, Geng Wanhua was a little disappointed.

Although the effect of this golden bowl tire was good, it was enough to beat the best imitation cloisonne utensils they had made in previous experiments.

But it is still incomparable with the authentic Wanshou Wujiang Bowl next to it.

The glaze color of the authentic Wanshou Wujiang bowl, the fullness of the glaze layer, and the brightness of the color are all much stronger than the bowl in Li Yi's hands, which can be described as a difference between clouds and mud.

Seeing Li Yi's operation, Geng Wanhua was stunned.

Can the cloisonne glaze be filled multiple times?

real or fake?

But before he could ask any questions, Li Yi filled the grid with glaze again.

Glazes are fine ore particles, so there are many spaces between the particles.

Although he had filled it up just now, the glaze particles melted when the blue was fired, the gaps in the space disappeared, and the glaze surface sank.

This time, he filled more glaze into the gold grid, which made the glaze protrude, a little higher.

A piece of cloisonné must go through at least three fires in the process of lighting the blue, that is, burn the blue three times.

The first fire should be level with silk, the second fire should be higher than silk, and the third fire should be level with silk.

Therefore, after filling the glaze for the second time, Li Yi sent the bowl tire into the kiln for the second firing, that is, the second fire.

After the second fire, the glaze color in the bowl tire Jinsi grid has been basically filled.

There are only slight gaps in some places, but the overall glaze is already very beautiful.

Seeing that the glazed surface of the Wanshou Wujiang bowl was almost 70% similar to the genuine product, Geng Wanhua couldn't help but clenched his fists, a little annoyed, as if he had been hit.

In fact, he was indeed hit by Li Yi's operation.

He never thought that the cloisonné glaze could be refilled!

No wonder they tried so many times before, and the finished cloisonné products were all poor.

Turns out it was because they only burned once!

Why didn't they think of it?

Geng Wanhua took a deep breath, feeling very complicated.

If they could have thought of pointing blue many times at the beginning, maybe they have reproduced this process?

But soon he was relieved.

Even if they could think of ordering blue many times, they probably wouldn't be able to replicate it.

The ratio of the glaze is the key. If the ratio is wrong, it is even a problem for the glaze to adhere to the carcass.

In front of the camera, Li Yi had already started to replenish the blue.

He filled in the areas where there were still holes in the gold wire pattern grid with glaze, and sent the bowl tires into the kiln for a third firing.

After this firing, all the glaze areas on the bowl body were filled, and the glaze even overflowed.

Looking at the Wanshou Wujiang bowl in Li Yi's hands, even Huang Xiaoming and the others could tell that this bowl was 90% similar to the sample bowl Li Yi put aside.

But although it looked similar at first glance, the new bowl in Li Yi's hand was a bit rough in terms of the glaze, bowl mouth and other details.

Therefore, at this point, it is necessary to carry out grinding work, that is, grinding and polishing.

Polishing is the hardest and most tiring process in the production process of cloisonné, including several steps such as stabbing, polishing, and glazing.

Fortunately, Li Yi used a gold tire this time, which is softer and easier to polish.

If it was a copper or silver tire, he would definitely be busy today.

After three times of sintering, there are some prominent glaze spots on the glaze surface of the bowl body, which need to be polished to be smooth.

So, Li Yi took out a bag of emery stones, added water and vigorously polished the glaze that was higher than the tread.

After polishing it once, Li Yi used yellowstone powder to polish it for the second time to remove the bright and black silk on the glaze.

Finally, he ground it again with basswood charcoal powder and water to smooth the glaze on the surface of the finished product that is higher than the filaments, so that the filaments on the surface are exposed.

With his last sanding done, he removed the bowl from the water, toweled it dry, and set it aside to the right of the sample bowl.

If it is a cloisonne utensil with a copper body, it needs to be plated with gold after polishing.

But Li Yi was originally made of gold tires and gold wires, so this step was omitted.

Looking at the two bowls Li Yi put together, there was a gasp in the scene.

"Fuck! Exactly the same!"

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