Paper trays are environmentally friendly paper products of different types and uses through production and processing of various paper raw materials. It is currently an environmentally friendly packaging that is widely used in many fields. What are the similarities and differences between paper tray production and cardboard?
The similarities and differences between papermaking and paper tray production:
The production raw materials are basically the same: pulp molding production and paper and cardboard production can use the basic raw materials of papermaking, such as reed, bagasse, wheat straw and other herb fiber pulp or waste paper recycling pulp. The chemical additives used in the production process are basically the same, such as retention aids, drainage aids, wet strength agents, dry strength agents, water repellents, oil repellents, dyes, whitening agents, etc. In addition, there are also environmentally friendly materials. The completed eco-friendly paper tray.
The raw material treatment process is basically the same as the equipment:
If using waste paper raw materials to produce cardboard, it must go through waste paper sorting, hydropulper disintegration, beating machine or refiner refining, and pulp sizing. pulping and other processes, and then pumped to the paper machine for sheet forming, pressing and dewatering, and drying cylinder drying to become the finished paper. Pulp molding production uses wheat straw pulp or waste paper raw materials, which also go through processes such as hydropulper disintegration, pulping machine or refiner refining, pulp sizing, and pulping, etc., and then transported to the paper molding machine for molding, Extrusion dehydration, drying and shaping, etc., become qualified pulp molding products. The material handling equipment in the two production processes can even be common, but differ in the molding and drying equipment.
The forming principle is similar: although the forming principle of paper tray and cardboard is similar, the form of the finished product is different. Paper tray production and paper and cardboard production are formed by wet forming, and then dewatered and dried to become finished products. The difference is that the paper or cardboard is dewatered and formed by "spraying" or "fishing" the pulp onto the forming wire (metal wire or plastic wire) in the wet end of the paper machine. , and rolled into a roll-like form.
Differences: The forming and drying equipment used by the paper tray and the cardboard are different. The paper machine for paper or cardboard is generally a relatively large-scale equipment that integrates forming and drying.
The above-mentioned similarities and differences in the production process of paper tray production and cardboard, the two paper products have their own advantages and applicable fields. As a large-scale paper tray manufacturer in China, Hedong Paper Tray Provide high-quality packaging paper trays for products in various fields!
