The main base material to manufacture packing bags of composite composite materials are aluminum foil, paper, plastic and all kinds of adhesive, coating, etc.Used in food packaging of typical composite bag packaging is compound cooking bags, composite retort pouch generally consists of a layer or multi-layer composite materials such as plastic and aluminum foil, etc., with its packaging of food can be high temperature cooking, eating special convenient.
Compound bags of food packaging is continuous on the bag forming, filling, sealing machine, its filling and packaging process flow diagram below:
Coil, bag forming, filling, vacuum or air flushing, sealing, sterilization, finish packing
manufacture packing bags
On bag forming, filling, sealing machine, the composite rolling and complete the retort pouch coil bag forming, filling food after the vacuum or nitrogen gas, finished bag sealing at the same time, and then into the sterilizer sterilization, sterilization after compound cooking bags of food packaging is completed the whole process of bag making, filling and packing.Sealing process generally adopts the heat sealing process, the production process should pay attention to the choice of materials, as well as the appropriate method, sealing and the method of vacuum filling and sterilizing method and so on.