What is the difference between ancient pulping and papermaking methods in my country and modern papermaking equipment
Everyone knows that papermaking is one of the four great inventions in our country. From ancient times to the present, the ancient method of papermaking has been continued. What is the difference between them and modern papermaking? Let us understand from two aspects:
What is the difference between ancient and modern papermaking materials?
1. Ancient materials
Raw materials: Use mulberry bark, mulberry bark, three yam, water chestnut and other plants as raw materials.
Auxiliary materials: In the process of papermaking, there are many auxiliary materials used. The most basic are cooking and bleaching. The function of cooking aids is to remove impurities in the raw materials in order to obtain fibers, and the function of bleaching aids is to remove pigments from them.
2. Modern materials
The fiber for papermaking comes from: wood, hemp, cotton, rattan, mulberry bark, sandalwood bark, hibiscus bark, rice stalk, wheat straw, bamboo, etc.
From the material point of view, modern papermaking materials are more extensive, and there are many types of papermaking materials that can be used, so that the selection of papermaking raw materials will be more.
What is the difference between ancient and modern papermaking processes?
Ancient papermaking: The process of ancient Chinese papermaking has five main steps. At that time, China's paper industry was quite mature. Experts in each process performed their duties and developed some special equipment for papermaking.
1. Cut bamboo and float pond: Cut down the bamboo and soak it in a pond to make the fiber fully absorb water. It can be mashed with plant materials such as bark, hemp and old fishing nets.
2. Boil the fritters on high heat: Boil the scraps to disperse the fibers until they become pulp. The scraps in the cauldron are pressed with dashi, which helps to cook them completely.