How is paper made?

1. The raw materials for papermaking should be big trees and reeds in the forest.

2. Cut the trees and reeds into pieces and put them in a large high-pressure container. Adding sodium hydroxide and sodium sulfide to separate lignin from the fragments.

3. Obtain lignin-based pulp, evenly spread the separated pulp on a paper machine, and make paper as required.

4. Dry and compact the moisture in the pulp at high temperature, and press it into a large roll paper with a calender.

5. After coming out, it is necessary to further cut the size and make it into a paper size that can be used in various industries, so that it can be sold in the market.

Paper is a kind of thin sheet made of plant fiber, which is used for writing pictures, printing books and newspapers, packaging and so on. Unlike bamboo, bamboo is the "silk" of animal fiber. Paper that can be folded at will for writing. Paper is the carrier of writing and printing, and can also be used for packaging, sanitation and other purposes, such as printing paper, carbon paper, toilet paper, facial paper and so on. Due to the invention and popularization of paper, people can no longer record words or pictures with mud, stone, wood, pottery, metal and other materials, and a large number of ancient information can be spread and preserved.

Paper: the general term for paper. Paper is counted by sheets, so paper is generally divided into: letterpress printing paper, newsprint, offset printing paper, coated paper, book cover paper, bible paper, copy paper, paperboard and so on.