179. Tung oil

At noon, Ren Xiaoyao received the cloth sent by Ye Guangyuan, and hurriedly sent the cloth to the freezer, and even locked himself in the freezer.

In the ice warehouse with the door closed, Ren Xiaoyao's eyes emitted a dark green glow, looking at the thousands of white cloths on the ground, and said to himself.

"It's a nuisance to have outsiders at home, and you have to sneak into the space. But these cloths are too bad, I don't know if they can be made into oilcloth. ”

After speaking, there was a flash of golden light, and he disappeared into the ice warehouse along with the cloth and appeared on the bank of the small river in the space.

Ren Xiaoyao looked at the messy white cloth on the ground, frowned, and sent a message to the space, asking him to build a frame out of wood.

I saw a white light flash in the sky above the space, and suddenly a few pieces of wood flew in, as well as a small number of iron nails. After a while, with a few flashes of white light, a complete frame came out.

Looking at the sturdy wooden house, Ren Xiaoyao's middle finger flashed with white light, and he took out the universal knife in the storage ring. At the same time, let the space use the white cloth on the shore, and cut the white cloth according to the size of the room frame.

The space flashed with white light, and among the chaotic white cloth on the shore, two white cloths with a rough texture flew up independently, on the wooden frame without walls, vertically and horizontally on the frame.

Looking at the alternative "tent", Ren Xiaoyao commanded the knife to cut the excess white cloth, and at the same time took out a self-made needle and the thick thread he bought when he came back, and sewed it with his spatial ability.

After all the white cloth on the room shelves was sewn, Ren Xiaoyao took out a large number of cyan round fruits from the space storage box, which was as much as a small hill.

Looking at the green fruits piled up in front of him, Ren Xiaoyao said to himself: "I don't know if these tung fruits are enough, if they are not enough, they will be planted with spring water again." ”

The fruits piled up into a hill are not edible fruits, but the fruits of the paulownia trees that Ren Yao has worked hard to find all night.

These fruits are the main ingredients used to make tents.

Although the tung fruit and the tent seem to be unrelated, although there is no direct relationship, there is an indirect relationship.

Tung fruit is the raw material for squeezing tung oil, and the tent encounters the next day, if you don't want to leak, you have to smear tung oil.

In the ancient era of backward science and technology, there were no polyester silk spinning fabrics, and there were no waterproof materials such as AC, PU, PVC and so on. It is made of cowhide and cloth curtains.

The Huaxia Continent Ren Xiaoyao didn't know, but the earth was ancient China, and he knew.

In ancient times, the northern nomads had a lot of cattle, horses and sheep, so their tents were almost all cowhide tents.

The cowhides in the Central Plains are used to make armor, but no one is so generous. Basically, they are mainly made of cloth curtains. In order to protect against rain and moisture, the surface is coated with tung oil or grease.

What is more special is the tent in the southwest. They lacked skin and cloth there.

Therefore, for a long time, the army there made military tents from bamboo and rattan, which are local specialties. Bamboo strips are made of bamboo strips in advance, and they are connected by ropes or rattan when camping. Simple and lightweight. Very distinctive.

Ren Xiaoyao can remember this ancient knowledge, thanks to Bai Rongquan.

If it weren't for what he said after Ren Xiaoyao refused to let others set up a tent, Ren Xiaoyao wouldn't have been able to remember this knowledge.

Although the space has the ability to back up memory,But it's not Du Niang after all.,Say search and search.,You can find a lot of related information.。

The memory of space needs to be recalled little by little, it is just to remember the memory of Ren Xiaoyao, and there is no "search" function.

The memories of the past, this life, and the fairy world are all stored in the space, and if you let you look for them one by one, the amount of effort is very large, as if it is the memory of the fairy world for hundreds of millions of years.

However, although Ren Xiaoyao knew that in ancient times, cloth was used to make oilcloth from tung oil, so as to make tents. Or the method of extracting tung oil is required.

Coincidentally, Ren Xiaoyao is very curious about the technology left over from ancient times. I often watch some programs about intangible cultural heritage. That's why Ren Xiaoyao will know how to extract tung oil.

Tung oil is the kernel in the fruit of the tung tree and is also the seed. The method of physical pressing is almost the same as the ancient method of extracting rapeseed oil.

Ren Xiaoyao uses the refining method in knowledge and the ability of space to separate the flesh and kernel of the tung fruit.

Originally, the tung fruit was as high as a hill, but after separation, the kernel was only a small half.

Ren Xiaoyao looked at the lack of more than half of the kernels, and hurriedly took a kernel and put it in the ring, even if the tung oil refined by that time was not enough, a little could be planted.

After collecting the nuts, Ren Xiaoyao quickly sent a message to the space, asking the space to extract the tung oil according to the method in his memory.

After a while, a huge black hole appeared in the sky above the tung fruit kernels, and after the black hole was formed, all the nuts were quickly sucked into the black hole.

As the squeezing sound became louder and louder, a large lump of maltose-colored tung oil appeared under the black hole, floating in the air, under the black hole.

As time passed, the squeezing sound became smaller and smaller, and the tung oil in mid-air could no longer be described as a lump.

The tung oil under the black hole is as much water as a standard swimming pool, covering the entire sky above the shore.

Suddenly, there was a loud sound from the black hole, and a cube with a dark yellow and black color of one meter by one meter fell from the black hole, and with a bang, the ground shook slightly, and the cube of unknown matter fell to the ground.

Ren Xiaoyao glanced at the strange cube like a compressed biscuit, looked up at the black hole that was slowly "healing", and said to himself: "This is not the scum of those nuts, right?" ”

The "healing" of the black hole proves that Ren Xiaoyao's conjecture is right, this one-cube cube is the residue of the mountain-like tung fruit kernel after refining pomelo oil.

After knowing this, Ren Xiaoyao was directly speechless, glanced back, and the hill of tung fruit pulp was piled up, and silently marveled at the immortal power of the fairy world in his heart.

Although the kernels and pulp are not exactly equal, they are not much different, and it takes a lot of effort to compress the volume of this hill into a square of one cubic meter.

And this is still a kernel, which has less water content than the pulp, which becomes a cubic meter, and the pulp is afraid that there is no volume of a cubic decimeter.

After coming back to his senses, Ren Xiaoyao wanted to try to lift the kernel residue, although he succeeded, he had already exhausted all his strength before lifting it 10 cm from the ground.

If it weren't for the spatial host's protective ability, his feet and waist would probably be useless.

This truth had to surprise Ren Xiaoyao, you must know that he has been improved by the quality of space, not to mention anything else, even thousands of kilograms of objects can be lifted, and this residue is almost the same as a thousand kilograms, which also makes Ren Xiaoyao speechless.

However, even if the residue was so heavy, the soil it pressed did not sink, which also made Ren Xiaoyao breathe a breath of cool air in his heart.

Looking up at the large number of tung oil, Ren Xiaoyao showed a strange expression.

Ren Xiaoyao shook his head a few times, shook off the shock of space and the soil belt to him, and used his spatial ability to transfer a large amount of wood to set up 1,000 tents of 100 square meters in the middle of the space.

These timbers were all cut in the woods after Ren Xiaoyao had dealt with dozens of black-clothed people last night.

Although Ren Xiaoyao cut down many trees, he used the ordinary spring water of the space to plant more trees. Because he adheres to the idea of drinking water and thinking about the source, he also knows the consequences of destroying the ecological environment a lot, so he planted many trees.

After a while, the space set up 1,000 100-square-meter room racks in accordance with Ren Xiaoyao's regulations, and controlled the white cloth to crisscross and "wrap" the room frame.

presents a shocking scene, just like the appearance of the little dragon girl flying on the cloth.

After everything was completed, there was not much white cloth left, so Ren Xiaoyao used his space ability to sew all the tents one by one, and let the space evenly smear tung oil on the white cloth of the tent.

In a short time, 1,000 tents were completed, and the shape of the tents was the same as that of the ancient tiled wooden houses, except that the walls were replaced with cloth.

The white cloth smeared with tung oil has become a yellowish yellow cloth with a shiny color, and it can be turned into an oilcloth that can protect from the wind and rain.

Ren Xiaoyao looked at the tent that had not yet dried, and said to himself: "If it weren't for the materials for refining cooked tung oil, you wouldn't have to wait for the tent to dry with cooked tung oil, hey, let's use the space ability to dry the tent." ”

The voice drank, and a black wind rushed through the space, turning the space that had never been dark into a space like night, without a trace of light.

Ren Xiaoyao was in the dark black wind, his eyes glowed with a faint green light, like the eyes of a wild wolf in the dark night, looking at the 1,000 tents in mid-air that dried quickly because of the black wind.

Tung oil is divided into raw tung oil and ripe tung oil, and raw tung oil is tung oil directly pressed from nuts, like this one refined by Ren Xiaoyao.

The cooked tung oil is processed from raw tung oil, which is a typical dry oil, and has good hardness and luster after concraving.

The processing method is very simple. Build a furnace outside, put a large iron pot on the stove, and use firewood to make a fire; First, put the stones in a pot and fry them to remove the water from the stones; After the pebbles are fried, pour in the raw tung oil.

As the temperature rises, the water in the tung oil gradually evaporates, and when the temperature rises to 180 °C, the water in the oil has basically evaporated.

At this time, you can see the tung oil in the pot. When heated to 260 °C, soil ginseng or yellow dan powder is added to make it have a strong chemical reaction with tung oil, and a layer of white foam is spread on the surface of tung oil, and a very thick yellow smoke is emitted.

At this moment, you must use a wooden stick to stir constantly, so that the foam of the soil ginseng quickly seals with the tung oil.

When the smoke color turns from yellow to black, the temperature of the tung oil in the pot has dropped to 240-250 °C.

If there is no temperature gauge to measure, you can take out a little cooked tung oil, put it on the iron sheet to cool, dip your index finger in a little tung oil and contact with your thumb and then open it, then the tung oil is pulled into a filament, can be pulled to 2 cm long, it means that the tung oil has been burned.

The reason why Ren Xiaoyao does not process raw tung oil into mature tung oil is because of the materials that need to be added, soil ginseng and yellow dan powder.

Native ginseng, also known as native Korean ginseng or fake ginseng.

The participation of the native ginseng is not considered a relative. Ginseng is a plant of the family Panaxaceae, which grows mostly in colder areas.

Native ginseng is a native ginseng of the purslane family and grows in tropical rainforests.

I don't know if it's a regional climate problem or what's going on, Ren Xiaoyao searched for a few days and couldn't find the soil ginseng, and there was no medicine store, and others didn't know what you were talking about.

Because that show only introduced the method of adding soil ginseng to refine cooked Tongyou, and Ren Xiaoyao didn't know what Huangdan powder was, he must have refined cooked pot oil.

The black wind lasted for a pillar of incense in the space before it stopped, and the space returned to its original state.

The tung oil on the white cloth, which had not dried thoroughly, has now dried completely, forming a thin film of yellowish and shiny, which looks a bit like plastic from a distance.

Seeing the tent become like this, Ren Xiaoyao was stunned for a moment, then came back to his senses and said to himself: "Why did it change like this, could it be that I put too much tung oil?" ”

Finding that the tent smeared with tung oil was not the same as what he saw on the show, Ren Xiaoyao hurriedly used his spatial ability to put down a tent and touch it with his hands.

"Huh? Strange, how does it feel like a kind of dermis, this is not a space kind of tung fruit, how did it mutate and become like this? And the finished product on TV does not correspond at all. ”

Ren Xiaoyao said to himself while touching the tarpaulin of the tent.

"It should be that the squeezing is too profitable, and what chemical reaction has been produced in the tung fruit, otherwise there is no other explanation."

Ren Xiaoyao could only explain it this way after thinking about it, and he couldn't find any other explanation.

After coming back to his senses, 1,000 tents were lined up over the space river as much as possible, and the water of the river was mobilized to test the waterproofness of the tents by using the space capacity.

I saw a flash of white light, and the river surface was pumped by a mysterious force, forming a backward column of water, but after a while, it began to pour heavily on the roof.

Ren Xiaoyao looked at the "pouring rain" and immediately used his spatial ability to form a barrier.

The heavy rain formed by the space itself, lapping on the 1,000 tents, making a ticking sound, Ren Yao looked at the tents meticulously, but after a while, he found a problem.

Now that there is no wind, the curtain of the tent is already fluttering slightly, and if it is windy and rainy, I don't know if it will be flooded.

Looking at the curtain of the tent, Ren Yao lost his mind for a long time, and his mind was racing to think of a solution. Talking to himself:

"There are no Velcro, zippers, buckles in this world? By the way, there is no button for the child, you can widen the curtain and add buttons to it, what should you use to make buttons? ”

After thinking about it, Ren Xiaoyao didn't think of what to use as the raw material for buttons, so he had to make some small round buttons out of wood and smear them with a little tung oil.

As soon as you say it, quickly wipe the remaining white cloth with tung oil, dry it, widen the tent door curtain, and sew wooden buttons on the door curtain.

After that, I tried the waterproofing again. Now, if the tent hadn't encountered a strong typhoon, it would definitely not have flooded.

Coming back to his senses, Ren Xiaoyao took some varnish from the only three lacquered trees in the space, and used varnish to make a mark on 1,000 tents, using his name pinyin.

"Hehe, this should be fine, right? Hey, no matter, it's been so many days since I came into the space, it might be dark outside"

Ren Xiaoyao looked at the thousand tents on the river and said to himself. After saying that, he dodged and left the space.

To be continued (To be continued. )