Van Zeer develops a new type of vertical packaging sheet that can withstand sterilization and microwave heating. The company uses a co-extrusion process to produce transparent sheets that are then formed into standing bags.
The material combinations of the vertical bag used by Van Zeer Company are: PA/aluminum foil/BOPS, PET/PP, PET/PA-ZVO-H-PA/PP, typical composite materials include: PET/PET-Siox/PE (ak PP), BOPA-Sionx/PE (or PP). According to the company, despite the use of advanced technology and material combinations, vertical bags can still compete with traditional glass cans or metal cans on price. Vertical bags have excellent oxygen and water barrier properties, fragrance and sealability. Van Zeer currently manufactures this composite bag with an annual capacity of 10 million and claims it is a material with the best barrier packaging and transparency.

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