Datang: Time travel in two months, wait online, hurry up!

Including the writing brush, the texture of the wool before degreasing is not good, and the writing experience after being made into a writing brush is very bad.

It was not until after the Yuan Dynasty that people had a preliminary method of degreasing that woolen pens began to be widely used.

So this is why wool is rarely used. The technology at that time could not degrease wool.

After the wool is degreased, it becomes the appearance of wool textiles that we usually see in modern times.

Moisture absorption and dryness, warm in winter and cool in summer, fluffy and soft without hardening, natural flame retardant, safe and reliable.

Wool textiles have many advantages, the only disadvantage may be the high price.

But this is for modern times. For ancient times, the wool on the grassland was thrown away directly.

For Li Ke, that cost is almost nothing!

Li Ke picked up the pen again, added a branch to the big tree, and wrote the word 'wool'.

And also re-wrote about wool degreasing.

He only knows that wool needs to be degreased, but he doesn't know the specific method, and he has to learn to understand it later.

Next, Li Ke also saw the ideas put forward by some people in the reply, and added the application scenarios of wool and cotton, etc.

"You only talked about raw materials, but you didn't say how to turn raw materials into finished textile products with high efficiency and low cost."

"The landlord can write down the drawings of the spinning jenny and the shuttle loom, and use these two machines to spin and weave after traveling through the past."

"Using these two machines for spinning and weaving will not only greatly increase the efficiency, but also greatly reduce the labor cost. If it can be equipped with a steam engine to drive, then it will take off directly!"

At this time, someone mentioned the spinning jenny and the shuttle loom.

"Upstairs, did you just come?"

"We talked about the spinning jenny and the shuttle loom on day one."

Seeing this, someone came out to respond immediately, saying that the two machines had been proposed on the first day.

Li Ke smiled, and then added the 'Spinning Jenny' and 'Flying Shuttle Loom' to the branches.

This is his original intention of sorting out and classifying, summarizing related things into a general direction.

For example, these two machines were indeed mentioned on the first day, but they were all mixed in a lot of information.

But now through sorting and classifying, it is classified under the category of 'clothes'.

When the time comes to learn and understand, it will not be easy to miss some.

"Is the dye and jacquard important too?"

"There were also dyes in ancient times, but they tended to fade with time and after washing. At this time, better quality dyes were needed."

"The landlord really needs to focus on learning the principles of the jacquard machine, such as the Jacquard machine. For the textile industry, it is definitely no less magical than the spinning jenny and shuttle loom!"

At this time, Li Ke noticed a new reply.

The content of the reply made his eyes narrow slightly.

He knows about dyes. For example, cotton is pure white. If you want cloth or clothes of other colors, you need to dye the cotton with dyes.

But what is the jacquard machine this person mentioned?

Jacquard?

Is it no less than an artifact of the spinning jenny and shuttle loom for the textile industry?

Although Li Ke didn't understand, he had vaguely realized that he seemed to have learned an important piece of information!

PS: Ask for favorites, ask for flowers, ask for evaluation tickets!

Chapter 15 is more than a thousand times faster!

Something he'd never heard of.

But according to this person, this thing called Jacquard machine can be called an artifact of the textile industry!

Naturally, Li Ke would not let go of this important information, so he opened Baidu Encyclopedia and started searching.

Soon, information about the Jacquard machine appeared in front of his eyes.

It turns out that the jacquard machine is a kind of loom, or a very important device in the loom!

The yarns of weaving are divided into warp yarns and weft yarns, the vertical yarns are warp yarns, and the horizontal yarns are weft yarns.

In fact, it is the same as the geographic longitude and latitude of the earth.

The principle of weaving is to divide the warp yarns into two rows, how many warp yarns are arranged in each row according to the size of the cloth to be woven, and only one weft yarn.

When a row of warp yarns is lifted, the weft yarns pass through the two rows of warp yarns. After passing through, this row of warp yarns is lowered, and the other row of warp yarns is lifted, and the weft yarns pass through again!

This back and forth is a process of weaving cloth. Only by repeating this step, the yarn that breaks when pulled can be woven into a strong cloth.

If you just want to weave pure color cloth, such as pure white or pure black, and other cloth with only one color, then ordinary shuttle looms can weave it.

Just choose the same color for warp and weft.

But if you want to weave different colors on the same piece of cloth, or if you want to weave patterns, you absolutely cannot do without the jacquard machine!

For example, you want to weave a piece of black cloth, but you want to weave a red pattern on the black cloth.

Then when weaving, the black area can be woven normally with black warp yarn.

But what should you do if you reach the red pattern area?

Then you have to use the jacquard machine!

Let a person sit on top of the loom and hold the red warp yarns one by one with his hands. When the red pattern is to be woven, he lifts the red warp yarns by hand so that the weft yarns can pass through.

This is how the red pattern is woven.

This is also the earliest manual jacquard machine, manual operation.

But this manual operation method is too troublesome, and it is time-consuming and labor-intensive to find the red warp yarns one by one.

You can't weave much cloth in one day.

Therefore, in ancient times, there were clothes of different colors and patterns, and only dignitaries could afford them.

Ordinary people can only wear solid-color clothes, because this kind of cloth is cheap and does not need hand-jacquard.

In order to change this backward and inefficient jacquard method, Jacquard invented the Jacquard machine in 1804.

That is to use pre-punched cards to control the color and pattern of the fabric!

To put it simply, it is to prepare cards one by one, and then punch holes on them according to the pattern you want to weave.

Then replace the manual thread lifting with steel needles that lift the warp yarn one by one.

Some steel needles are carrying black yarn, and some steel needles are carrying red yarn.

And the pre-punched card is just above these needles, and if there is a hole in the card directly above the needles, then you can go through the card and lift the yarn.

If there is no hole on the card directly above the steel needle, then the steel needle will stop moving after it hits the card, and the warp yarn on the steel needle will naturally not be lifted.

For example, if you don't need to weave patterns at this time, you only need to pick up the black yarn.

What does the corresponding hole on the card look like at this time?

That is, there is only a hole right above the steel needle holding the black yarn, and there is no hole right above the steel needle holding the red yarn!

In this way, what is lifted is naturally all black yarn.

Because the cards on the jacquard machine also move along with the weaving.

When the red pattern needs to be knitted, the card hole on the steel needle also becomes the exclusive hole for the red pattern.

In other places where there is no pattern, the steel needle of the black yarn can pass through the hole to lift the black yarn.

Where there is a pattern, only the steel needle of the red yarn can pass through the hole to lift the red.

In this way, the pattern can be woven smoothly.

It looks quite complicated, but in fact, it is actually changing the previous manual lifting of the thread into a card punching instead of manual labor.

Manual thread lifting uses eyes and hands to find colored threads one by one.

The card punching is set in advance, and a weaving process corresponds to a punched card.

In the process of weaving this time, I need to lift as many red threads as black threads, and punch holes at the steel needles corresponding to these red threads and black threads.

In this way, during the weaving process, punched cards will replace manual search and screening, and the required threads can be picked up accurately and quickly.

And this kind of punched card can be used repeatedly. If you use a steel plate as a card, as long as you don’t think the pattern is outdated, you can use it all the time!

Just like engraving, the punched card is like a printed engraving, as long as the engraving is not broken, the content of this version can be printed forever.

The punched card is not broken, and you can always weave cloth in this pattern.

Unlike artificial jacquard, even if the pattern is the same every time, it still needs to be lifted one by one.

"Although it looks complicated, it is actually much simpler to understand the principle."

After watching it for a while, Li Ke understood the principle of the Jacquard machine, and the design was indeed ingenious.

And according to the content he searched, the speed of the Jacquard machine is 25 times faster than that of the old handmade machine!

It is equivalent to the leap from bicycle to car!

And this is not counting the steam engine, the manual jacquard machine cannot use the power of the steam engine.

But the Jacquard machine can use the steam engine. In this way, the speed of the jacquard machine is more than 25 times faster than that of the old-fashioned manual jacquard machine, which is estimated to be more than a hundred times faster!

"It's no wonder that the Jacquard machine is called an artifact of the textile industry by that person, and now it's just as it should be!"

Li Ke was very glad that he saw this person's reply, otherwise he might have missed such an artifact in the textile industry!

PS: Ask for favorites, ask for flowers, ask for evaluation tickets!

Chapter No.16 Briquettes and Matches!

"What's a jacquard machine?"

"What is this Jacquard machine?"

"Should I know or not?"

"For the first time since I followed this thread, something I don't understand!"

"Don't worry, there will be more things that you don't understand later!"

It seems that Li Ke is not the only one who has not heard of the jacquard machine, and many netizens below the post did not know about it before.

"In fact, the efficiency of the old-fashioned manual jacquard machine is very low. It was not until the appearance of the Jacquard jacquard machine that the efficiency of weaving patterns was greatly improved!"

"The host should really have a good understanding of the principle of the Jacquard machine, which will be of great help to the host's cloth business after traveling through the past!"

"At that time, after Jacquard invented the jacquard machine, Napoleon, the Gaul chicken emperor who was keen on technology and industry, also gave a special award to the inventor Jacquard!"

"And allow him to extract patent tax from the profit of each Jacquard machine produced!"

"Speaking of cold knowledge, the card punching of the Jacquard machine is actually the earliest programming. The birth of the first computer was inspired by the Jacquard card punching!"

"Does IBM know? IBM first made a fortune by punching cards with a 'tabulation machine'."

"It can be said that Jacquard's punched cards not only brought a revolution to the textile industry, but also opened a door for human beings to control information!"

Looking at everyone's additions and discussions, especially when he saw the back, Li Ke's eyes showed a deep look of surprise.

After he figured out the principle of card punching, he felt that there was a bit of programming in it.

But he didn't expect that this punch card turned out to be the originator of computer programming!

"Good guy, fortunately I noticed the previous reply, otherwise I almost missed a big fish!"

At this moment, Li Ke could only feel lucky. Fortunately, he had good eyesight and noticed the previous reply.

If he didn't notice, after traveling through the past, when he got the cloth to be woven with different colors and different patterns, he might be dumbfounded.

After discussing for a while, the topic gradually turned to 'food'.

"Actually, 'food' can be summed up in seven words. It is nothing more than firewood, rice, oil, salt, soy sauce, vinegar and tea!"