Pulp molded product
Release time：2019-10-06
Pulp molded products, using pulp as a basic material, using equipment and molds to produce various shapes of packaged products and articles through three-dimensional modeling. There are dry pressure process and wet pressure process. The wet pressing production process is as follows:
1, pulping - pulping - pulping
Reeds, straw shells, sugar cane, wheat straw, bamboo, wood, recycled paper are used as raw materials, and after breaking, refining and other processes, the fibers are suspended in water. According to the characteristics of the final product, the length of the pulp fiber and the concentration of the pulp can be controlled during the pulping process. Add functional additives (oil repellent, brightener, water repellent, etc.) and dyes to perform a series of auxiliary operations to form a pulp that meets production needs.
Equipment: pulper, matching pool, slurry pool, etc.
2, molding process
The molding process of pulp molded products is mainly through a series of methods such as slurrying and grouting (grouting), so that the original pulp fibers are formed into a shape designed by the mold, and the pulping process products are relatively uniform.
The grouting process products are relatively consistent.
Equipment: Forming machine
3, hot pressing process
The hot press forming mold has a pressure heating function, and the product is subjected to pressure and high temperature in the mold to quickly remove moisture. Product shape and size are controlled more accurately. Generally used to produce paper tableware, fine
Product packaging, etc. Mainly use fuel, oil, gas, electricity or steam, heat transfer oil or other medium as a heat source.
Equipment: Thermoforming machine
4, trimming process
After the hot press forming of the pulp product, the edge trimming machine is used for precise size trimming, and the excess is cut off.
Equipment: trimming machine
5, inspection and storage
Inspect, package and store the product.
Equipment: paper tableware visual inspection machine, stacker
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