mtl008 Chapter 335: Geese and Ducks Suddenly Become Expensive
Chapter 335: Geese and Ducks Suddenly Become Expensive
[Is this fluffy cotton the fruit of this plant? Is it the petal of this plant? What is it?
Scientifically speaking, it is the cilia that grow on the seeds of the cotton plant of the Malvaceae family.
Cotton sprouts from a seed to leaves and buds. The flower is milky white when it blooms, then gradually turns pink, red, purple, and the color becomes darker and darker, and finally withers, leaving only a small green fruit, which is the cotton boll.
The cotton boll contains cotton seeds, and 1.6 fibers gradually emerge from the epidermis. They first grow taller and then thicker. When mature, the cotton boll swells from the inside, revealing the white and soft cotton fibers inside.
The cotton we see today is the cotton that has been successfully domesticated after continuous hybridization and breeding by humans.
Cotton is not only white, but also brown and green. From its original form to cotton products, it needs to go through many processes and screening.
In the past, cotton stripping was done manually, but now it is basically done by machines. The cotton is picked uniformly, and the cotton seeds and other impurities are separated by machines. The cotton is then spread out and twisted to form a line.
＜Cotton can also be used as explosives [狗头] You never thought of that. After cotton is nitrated with nitric acid, it becomes nitrocellulose, which is used in bullets and shells.＞
＜The process of making cotton has become much simpler ＞
＜The video shows domesticated cotton. Undomesticated wild cotton looks like this [wild cotton picture.jpg]＞
＜Wild cotton has not been domesticated and cultivated. The cotton looks comfortable, the grains are not big, and they are not fluffy. They don’t look warm, hahaha ＞
＜Durian and cotton are close relatives because they both belong to the Malvaceae family＞
＜my country's Xinjiang cotton is of very good quality and is grown in several specific areas＞
＜Who still picks cotton manually? It’s all done by machines.＞
[Tang Taizong Li Shimin: How can cotton be made into explosives...! ! ! ]
[Princess Taiping of Wu Zhou: How to cultivate and domesticate them?]
[Emperor Zhengde of the Ming Dynasty, Zhu Houzhao: Another machine... Great, another convenient tool.]
[Emperor Wu of Han, Liu Che: Xinjiang? The Western Regions! It's very useful to grow cotton there, right?]
……
Han Dynasty, the sixth year of Yuanshou
"Zhang Qian! I want you to go to the Western Regions again and collect animals and plants from all over the Western Regions for me, and bring new things to the Han Dynasty." Since Emperor Wu of Han, Liu Che, learned about cotton, he couldn't wait to own it.
It is not only a material for clothing used by the royal family and nobles, but also a warm item that can be found in ordinary households.
"When winter came, the snow covered the ground and many people froze to death."
"In the barracks, if the soldiers had better clothes and didn't have to endure the penetration of cold armor, they would have a better chance of survival."
Wei Qing and Huo Qubing were both very kind to their soldiers. If their soldiers were well clothed and well fed, they would be willing to wander around the grasslands even in the cold winter!
However, this still requires the logistics and food to keep up. Therefore, Huo Qubing just thought about it in his mind.
"They say it was introduced from the Han Dynasty, so why hasn't it been discovered yet?" Many people began to complain.
They asked people born in the South on the screen if they had seen the cotton in the video.
……
Ming Dynasty, Zhengde 2nd year
"Can cotton still be used as explosives?"
As soon as Guangmu said this, the workers in the gunpowder workshop knew that their busy days were approaching.
Sure enough, it wasn't long before the Emperor ordered them to develop the explosives indicated by the light curtain comments.
"The video on the light screen says it's dynamite, but we usually say it's gunpowder."
"One is gunpowder, the other is dynamite. Is that the difference?"
……
When Li Ranran saw the Xinjiang cotton mentioned in the video, her eyes followed the phone to the coat she was wearing.
Hmm...it seems like she bought it at HM offline store...
Damn! They say our Xinjiang cotton is not good, no wonder! I have only worn it for a few days, and the sleeves of this dress are pilling!
Never going there again.
As the weather has turned cooler recently, it’s time to add winter clothes. Coincidentally, the next video on cotton is a video that teaches people how to choose down jackets.
[Avoid stepping on thunder! How to choose a warm down jacket]
[Many down jackets that are called affordable and cost hundreds of yuan must be carefully distinguished. Do you buy them without knowing what their fillings are?
Generally, the filling of this type of down jackets is made of 100% polyester fiber.
They use down cotton, which is actually not related to down at all. It is a petroleum extract and a very low-grade filling material. It has low warmth retention and is not as warm as people think. This kind of filling usually appears in "thin" models. You can feel a layer of cotton inside when you touch it.
The next thing to talk about is "coating". Before the fabric is made into a down jacket, a layer of something will be applied on it. This is the coating process. The purpose is to make the down jacket waterproof, windproof, and oil-proof. Because it is windy and cold in winter, if there is no down jacket without coating, then the down jacket you bought is equivalent to buying it in vain.
How to detect whether the down jacket you bought is coated? You can use water to test it. If the water penetrates into the down jacket, then the jacket is not coated. If it does not penetrate, then the down jacket is coated.
How to choose the right down jacket?
Goose down＞Duck down
Goose down is warmer than duck down, but its production is low and its price is much higher than duck down.
In daily life, duck down is OK and can also be used to survive the winter. There is more duck down on the market, which is close to our lives.
When choosing, you also need to look at the percentage of down content. Down content ≠ filling amount, the filling amount of duck down = duck feathers + duck down, down content = duck down. The higher the percentage of down content, the warmer it is, and the more expensive it is.
The standard in our country is that the down content must not be less than 50%. Generally speaking, a down content of 80% is enough to get through the winter.
When buying a down jacket, be sure to read the label on the clothes, and you can also read the ingredient label. Down jackets will have gram weight written on them, which is not the weight of the down jacket, but only refers to the weight of the inner liner filling (duck feathers + duck down).
Here are some reference data for fans:
The weight of a short down jacket is between 120-150g;
The weight of a long down jacket is between 200-300g;
This winter, we can all choose the right down jacket~】
＜Ah, but that kind of quilted baseball down jacket, I think it's quite warm, I live in the south.＞
＜If you live in the south, you can probably wear cotton clothes to survive the winter.＞
＜In fact, you have to believe that those down jackets that cost tens of dollars are not real. It is better to buy cotton clothes than clothes that cost tens of dollars.＞
＜In addition to the down, the quality of the down lining also varies greatly.＞
＜Don’t wash your down jacket if you can. Also, check the springback speed of the down jacket. The better the springback speed, the warmer it will keep you warm.＞
＜For polyester fiber, it depends on the filling material, because it is normal for the outer material and lining material to be this. The outer material is the fabric you can touch on the outside of the clothes, and the lining material is the fabric of the lining fabric.＞
＜I feel that the prices of down jackets are so inflated now. I bought one from a famous brand offline store before. It said it was down, but after I bought it and searched it, I found that it was not worth it at all.＞
＜In fact, you can also customize down. You can bring your own geese and ducks to a store that specializes in down jackets and choose a custom style.＞
＜One more supplement
Filling volume 90% pass 95% excellent
Down content 70% pass 90% excellent
Fluffiness less than 500: pass; 500 to 700: good; 700 and above: excellent＞
＜When it comes to down jackets, I firmly believe that you get what you pay for [covering my face]＞