As we all know, papermaking is one of the four great inventions and an ancient technology.
1. First, obtain papermaking raw materials, such as corn stalks, straw, bamboo, bark, hemp heads, rags, fishing nets and other raw fibers;
2. Then soak or polish the raw materials to remove unnecessary impurities;
3. Next, the cellulose is mixed with water, and chemicals such as soil and lime are added to promote the separation of cellulose and make it into slurry;
4. Then, the paper pulp is put into a mold to form paper through the processes of vibration, dehydration and compression;
5. Finally, the finished paper can be made by drying, trimming and polishing.
According to the above steps, according to a certain typesetting, organize into a mind map.