Two types of inner bags for bag-in-box

An inner bag for bag-in-box comprises a sealed oil bag and a filling port arranged on the oil bag, and a sealing device arranged on the filling port; the oil bag includes an outer bag and an inner bag , the inner bag is made of PE material, and the outer bag is made of nylon and PE. The inner bag of the utility model is composed of two layers: the inner bag and the outer bag, which enhances the flexibility and thickness of the inner bag , the structure is simple and reasonable.

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Another type of inner bag is usually an opaque flexible packaging bag, which is composed of two layers of uncompounded material on one side. The outer layer is a composite film, and the inner layer is a single layer of PE. The outer layer composite material is usually PET/AL/PE, NY/EVOH/PE, PET/VMPET/PE, etc.

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The choice of this special structure is mainly due to the fact that the contents of the package are liquids with strong fluidity. Once a certain layer of material is damaged, there can also be a second layer of protection. At the same time, the protection of the two layers of materials can slow down the flow of liquid during transportation. It has a good protective effect on the impact of packaging bag materials.

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Post time: Oct-10-2022