Mar,2021: FOOD PACKAGING MARKET (Hot Runner Case Study)
The total value of the global fresh food packaging market in 2019 is approximately US$77.20 billion. It is expected that during 2020-2026, it will grow healthily with a figure of more than 3.5%. To keep food in a fresh state, special packaging techniques must be used to prevent food from being contaminated by physical, chemical or biological sources. With the continuous progress of packaging materials, machinery and technology, a large number of plastic containers for packaged food have appeared, such as bottled food, canned food, aseptic packaged food and so on. The following is a successful case of POLYFLOW® 8-Cavity High-Performance Valve Gate Hot Runner System applied to food packaging container lids.
The product is a lid for food packaging containers, and the product material is PE+ metallic powder. PE plastic is characterized by high fluidity, large shrinkage range and shrinkage value, and it is prone to shrinkage, dents, and deformation. Therefore, the metallic powder must be added evenly to smooth the wall thickness, avoid lack of plastic material, sharp points and prevent stress concentration. In order to obtain a good shiny surface.
Project Name: Food Packaging Container Lid
Number of products: 8
Plastic material: PE + metallic powder
Wall thickness: 0.8mm
System type: Valve-gate system
Polyflow Hot Runner Solution:
Through moldflow analysis, Polyflow hot runner engineers accurately select the nozzle and system design according to the type of molding material, characteristics of the compound, flow coefficient, molding temperature, etc., to determine the size of the manifold runner, ensuring normal injection pressure and balanced-flow system. The structure of the cooling jacket uses a special design to avoid plastic hair and insufficient injection of plastic material. In addition, the nozzle uses special high-performance materials to ensure a balanced temperature of the nozzle, so that the service life of the nozzle head can be extended, after-sales maintenance is reduced, and injection costs can be saved.