Rapidly new packaging materials in recent years

Pulp molded products are a new type of packaging material that has been rapidly developed in recent years and are an excellent alternative to wood. Pulp molded products are currently used: raw material beating - ingredients - molding - drying - stereotypes of the manufacturing process. Since a large amount of water (about 55-60%) remains on the workpiece after molding, the moisture content of the final product is 12-14%. Therefore, the moisture that accounts for the weight of the workpiece is removed during the drying process of the workpiece. This part of the water all depends on absorbing heat and turning it into steam. Due to the phase change in the drying process, the energy consumption is very high. Pulp molded products are processed into high energy consumption products. For this reason, thermal analysis of the energy conversion process of its drying is very necessary. Because the analysis can improve the design and processing of drying equipment and improve the utilization of energy, it has important guiding significance for reducing the production cost of pulp molded products industry.

Pulp molded products are solid containers for containing and restricting the objects to be packaged, serving the circulation, storage and transportation of goods, and are mainly applied to the transportation and packaging of goods.

The function of the pulp molded product is to contain and protect the packaged product, which is convenient and practical.

Inclusive and protective packaging products are the primary function of pulp molded products. Pulp molded products should be able to reliably contain the packaged products specified in the package, so that the packaged products will not be damaged during transportation, handling, and use, and they will meet the requirements for strength, rigidity and stability. The materials used for pulp molded products are also safe for the packaged product, and the two do not interact.

The ease of use of pulp molded articles should be pleasant. The structure and shape of the pulp molded product should not harm the human body and adapt to the operation and handling of the human body during use.

In other words, the pulp molded product is modified by its own special structure when loaded to extend the corresponding time, absorb external energy, thereby reducing the shock and vibration of the packaged object. It is different from the cushioning mechanism of foamed plastic packaging products, because foamed products, due to the distribution of a large number of compressible cells inside the material, regardless of the shape of the product, it has a good cushioning properties, if the pulp and plastic film materials and Foam plastics are made into a large plane, obviously the former is cushioned, while the latter is not cushioned, so for the pulp plastic film products, a good structural design is to complete the protection of the contents, in the transport and handling process to improve Basic guarantee of shock absorption. The designed structural performance will directly affect the strength, stiffness, stability and practicality of the package, that is, the structure of the pulp molded product directly affects the realization of its packaging function.