What is called pulp molding system

Pulp molding is a three-dimensional paper-making technology. It takes waste paper as raw material, and shapes paper products of certain shapes by special molds on the molding machine. It has four major advantages: the raw material is waste paper, including cardboard, waste carton paper, waste white paper, etc., from a wide range of sources; its production process is completed by the pulping, adsorption molding, drying and shaping processes, harmless to the environment; can be recycled; the volume is smaller than the foamed plastic, can be overlapped, transportation is convenient. Pulp molding, in addition to lunch boxes, tableware, more industrial buffer packaging, the current development is very rapid.

Features:

Including egg cartons, egg trays, fruit trays, flower pots, disposable medical potty and so on. It is to waste paper as raw material, add part of the moisture-proof agent (aluminum sulfate) or waterproof agent, and then according to different uses made of various shapes of model products, used as eggs, fruits, precision devices, fragile glass, ceramic products, handicrafts, etc. Packaging liner, has a good buffer to protect performance. Production of pulp molding technology and equipment is developing rapidly, the basic process is the pulp preparation, molding, drying, shaping four processes. Domestic is mainly semi-automatic equipment, while almost all foreign countries are fully automatic high energy-consuming assembly line.

Model products:

Pulp molded products is a new type of packaging materials in recent years, is an excellent alternative to wood. Pulp molded products using: raw materials pulping - batching - molding - drying - shaping of the manufacturing Process. Due to the molding, the workpiece retains a large amount of water (about 55-60%), the final product of the moisture content of 12-14%, so in the drying process of the workpiece to remove about the weight of the workpiece general water, this part of the water all rely on the absorption of heat into the water vapor to remove. Due to the drying process occurs phase change, energy consumption is very large, pulp molding products processing become high energy consumption products. For this reason, the energy conversion process of its drying thermal analysis is very necessary. Because, through the analysis can be improved on the design and processing of drying equipment, improve the utilization of energy, to reduce the production cost of pulp molded plastic products industry is of great significance.

Applications:

Pulp molded plastic products are used to contain and limit the solid containers of the packaged goods, serving the circulation of commodities, storage and transportation, that is, the main application of commodities in the transportation packaging.