Papermaking process flow

The flow chart of the papermaking process is as follows:

China traditional handmade paper production method has a complete set of production processes, no matter what raw materials and paper are used, they are basically the same steps. These main production processes are: soaking, cooking, washing, drying, pulping, fishing, squeezing and baking.

The most famous handmade paper is calligraphy and painting Xuan paper. This kind of handmade paper is famous at home and abroad for its flexibility, smoothness, fineness and durability. Secondly, there are Daqian calligraphy and painting paper, Fengxiang calligraphy and painting paper, wool paper, Shi Lian paper, Imperial Mouth paper, Koryo paper and other cultural paper. These handmade papers are unique and often have some characteristics that machine-made papers do not have.

The main components of paper:

The raw materials for papermaking are mainly plant fibers. In addition to cellulose, hemicellulose and lignin, there are other components with less content, such as resin and ash. In addition, there are auxiliary ingredients such as sodium sulfate.

Besides plant fiber, different fillers need to be added according to different paper materials. For example, copper-based antibacterial paper is made by compounding copper ions on the first monomer acrylonitrile of polyacrylonitrile (commonly known as acrylic fiber) to make a modified acrylic composite fiber, and then adding the modified acrylic fiber to plant fibers to match with various papers to make antibacterial paper. ?

20 10 the voice of environmental protection is growing. Paper mills have introduced different proportions of recycled paper, including 100% recycled paper and 50% recycled paper, which are suitable for different customers' needs. Recycled paper comes from waste paper and can be reused after disinfection, pulp crushing and other treatments. The purpose of pulp crushing system is to completely crush waste paper without damaging fibers and non-paper components.