Who invented paper, what can he do, what can he do

Cai Lun improved paper, and the one who really invented paper did not leave a name in the world.

The paper was picked out by Cai Lun, a eunuch in the early Eastern Han Dynasty, and asked craftsmen to chop up and cut them up and soak them in a large pool. After some time, the debris in it rots, while the fibers are not perishable and are retained.

He then asked the craftsmen to scoop up the soaked raw materials, put them in a stone mortar, stir them constantly until they became a slurry, and then pick up the sticky thing with bamboo strips, and when it was dry, it was removed and turned into paper.

In the first year of Yuanxing (105 AD), Cai Lun presented paper to Emperor Han He, Cai Lun wrote the method of making paper into a fold, and presented it to the emperor together with the paper, which was appreciated by the emperor, and he ordered the use and promotion of the imperial court inside and outside the world, and the official offices of the imperial court and all parts of the country were regarded as miracles. Nine years later, Cai Lun was named "Marquis of Longting", with 300 households. Due to the gradual implementation of the new papermaking method in all parts of the country Cai Lun invented, people call this kind of paper "Cai Hou paper".

Paper is an indispensable item in our lives, and in our daily life, we can use paper to write, draw, print, copy and a series of other functions. However, for some professional fields, ordinary paper cannot meet the needs, so we need to invent some special paper to meet these needs. Below, I'll introduce some of the new types of paper and what they can be used for.

The first is waterproof paper, as the name suggests, this kind of paper is waterproof, its main material is composed of cellulose, polymer materials and various waterproof agents. It can be used in outdoor activities (such as mountaineering, camping, etc.), and can even be used to make maps and nautical charts and other places that need to be in constant contact with water.

The second is graphene paper, which is a material that is caused by layering graphene atoms. Compared with ordinary paper, it has higher electrical conductivity and heat dissipation, so it is widely used in the electronics industry and the automotive industry. It can be used as a thermal insulation and conductive medium in mobile phones, computers, and other electronic structures.

Similarly, in the automotive industry, graphene paper can be used to regulate engine temperature and improve vehicle performance.

Finally, there is magnetic paper, which is a type of white paper coated with iron powder that can be used for printing and copying just like regular paper. Compared to ordinary paper, it has a great improvement in magnetic properties because it is coated with iron powder, which can be used to make small electromagnets for the manufacture of banknotes, credit cards, and shopping bags.

In short, with the continuous advancement of technology, we are able to invent a variety of papers with special functions to meet specific needs. These new types of paper can not only facilitate people's daily life, but also have been widely used in some fields. <>

Papermaking is one of the four great inventions of ancient China.

Who invented papermaking has long been believed to have been invented by Cai Lun, a eunuch in the Eastern Han Dynasty. The main basis is the record of the "Book of the Later Han Dynasty: The Biography of Cai Lun". The book says:

Since ancient times, the book deed is mostly made of bamboo slips, and its silk (that is, the silk fabric cut according to the needs of writing) is called paper. It is expensive and simple, and it is not convenient for people. Lun Nai made the intention (invented, created) with tree skin, hemp and cloth.

Fishing nets are thought to be paper. In the first year of Yuanxing, it was played. The emperor is good at his ability, and he is indispensable to use, so the world is called 'Cai Hou paper'.

Therefore, some later Chinese and foreign works are based on the honor of Cai Lun in the Eastern Han Dynasty as the inventor of paper, and the year 105 A.D., when he presented paper to Emperor Liu Zhao of the Han Dynasty, is the year of the birth of paper.

Paper was invented by Cai Lun.

Cai Lun was the greatest inventor in ancient China and the inventor of papermaking. Before the invention of paper, the ancient peoples tried their best to use stones, bricks, leaves, bark, wax boards, copper, lead, linen, animal skins, sheepskins, and so on, to write down. During the Shang Dynasty in China, people carved words on tortoise shells and shoulder blades of cattle, sheep, pigs and other animals.

Subsequently, people used wood chips (also known as bamboo chips) and bamboo chips (also known as Jane) to write articles; Later, it was also used to write on silk silk. During the Eastern Han Dynasty, with the development of economy and culture, bamboo slips and silk slips became less and less suitable for the needs of writing. In order to make a more ideal writing material, Dan Pao Cai Lun on the basis of the use of waste silk cotton paper by his predecessors.

Using bark, hemp, rags, and waste fish nets as raw materials, we have successfully manufactured a kind of paper that is both light and economical, and summed up a set of relatively perfect papermaking methods, so that the papermaking technology has made Yueyue progress. In 105 A.D. (the first year of Yuanxing, during the reign of Emperor Liu Zhao of the Han Dynasty), Cai Lun presented the resulting paper to the imperial court and was praised by the emperor.

The role of paper

Since ancient times, people have been using paper to record important information, such as historical events, cultural inheritance, and scientific knowledge. With the development of technology, more and more people have begun to use electronic devices to record information, but paper materials are still one of the best ways to preserve information.

In the commercial sector, paper bags, cartons, and paper bags are all very important packaging materials. These packaging materials not only protect the product, but also add aesthetics to the product. In addition, paper can also be used to make cartons, paper bags, gift bags, etc., these products can not only be used as packaging materials, but also can be used as a promotional tool for merchants.

Many artists use paper to create a variety of artworks, such as paintings, sculptures, and installations. These paper artworks can be used not only as decorations, but also as commercial promotional materials or cultural exhibits. In addition, paper can also be used to make handicrafts such as paper windmills, paper folding fans, and paper lanterns, which can be used for holiday celebrations or children's toys.

The above content refers to Encyclopedia-Cai Lun.

1. In ancient and modern times, it is recognized that Cai Lun, a eunuch in the early Eastern Han Dynasty, was the inventor of papermaking. According to Fan Ye's "Book of the Later Han Dynasty", from the records, we can see that the raw materials used by Cai Lun papermaking are bark, hemp, old cloth, fishing nets and other low-cost materials, so that the cost of paper is low, and it has been popularized and applied soon.

2. In Bangu's Book of Han, there is a record of the use of paper to wrap medicine in the 2nd century BC. In particular, since the beginning of this century, the Western Han Dynasty paper unearthed in Gansu Tianshui Fangmatan, Dunhuang Mawu Cave Circle Bay Fengsui Ruins and Dunhuang Tianshuijing Hanhangquan Post Post Site You Tangyu Stupid have proved that the use of paper appeared in the Western Han Dynasty long before Cai Lun invented papermaking. This great god was about 170 years ahead of Cai Lun's invention of papermaking.