How about the choice of pp material for the wholesale of disposable fast food boxes? After several years of development, there are many fast machine brands on the market now. Most people, including technicians from some production plants, believe that the fast machines of various brands are similar and mature. In fact, from a technical point of view, due to the different understanding of the market by major brands, the rapid injection molding solutions launched are still quite different.
You must know that the wholesalers of disposable fast food boxes believe that the quality of the PP fast food box machine solution requires a certain understanding of the materials, products, use, and production links of fast food box injection molding. Thin-walled products such as injection-molded PP snack boxes require materials with high fluidity; sufficient strength, hardness and relatively single molecular weight distribution.
Disposable pp fast food box material features:
According to the wholesalers of disposable snack boxes, the melt index (MFI) is usually 35-50g/10min (230ºC/2.16kg). And the common points of injection molding of these materials are:
1. The material temperature should not be too high during injection molding, and the product that exceeds 300 degrees will be brittle.
2. The pressure during injection should not be too high. The increase in internal stress of the product made by more than 120 hPa will cause deformation; the increase in density will make it heavier, and this increase in weight will not increase the hardness too much, but only increase the cost of materials.
The above are the characteristics of disposable pp fast food box materials that the disposable fast food box wholesalers understand. It can be seen that it is still possible to choose pp materials when wholesale lunch boxes.
