The process of wood pulp can be roughly divided into mechanical, chemical or semi-chemical three categories. The pulp obtained by different processes is called mechanical pulp, chemical pulp and chemical mechanical pulp respectively.

Types of paper commonly used for printing Paper can be divided into: white cardboard, gray board, copper paper, offset paper, corrugated paper, special paper, writing paper, kraft paper, newsprint.

Step 8: Press the cardboard The corrugated paper core is pressed, and the paper is pulled out from the large roll by the machine and entered into a set of corrugated rollers with high temperature and high humidity and gear. Under the pressure of two gear rollers, the paper forms a corrugated shape with convex and convex phases, so that the corrugated board has strength and buffering ability. The molded corrugated core will touch another roller with glue, which will glue the corrugated core side, and stick to the roll of paper drawn from the other roller during the rotation process. Glue a roll of paper on the other side of the corrugated board, and after the glue is dried by high temperature, a double layer of corrugated board will be formed, and so on.

Guorui Paper Machinery: The basic process of using waste cartons to produce new cartons (2) Step 3: Pure pulp treatment The pure pulp separated by the above process must be re-added with water and other chemicals to make the subsequent paper have the required functions, such as waterproof. Step 4: Roll the pulp