High barrier aluminum-plating composite film for packing liquid dairy product
An aluminized composite film and packaging technology, applied in packaging, wrapping paper, transportation and packaging, etc., can solve the problems of poor oxygen barrier, easy breakage of aluminum foil, pollution, etc., and achieve high water resistance, high gas barrier, high The effect of folding resistance
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[0008] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0009] As shown in the figure, the present invention has a hierarchical structure, and the hierarchical structure is a printable layer 1, an adhesive layer 2, an aluminum layer 3, an adhesive layer 4, a barrier layer 5, an adhesive layer 6 and a thermal layer from outside to inside. Sealing layer 7. The barrier layer 5 is made of polyvinylidene chloride copolymer or ethylene-vinyl alcohol copolymer.
[0010] The material of the printable layer 1 is polyethylene, selected from one of low-density polyethylene, linear low-density polyethylene, medium-density polyethylene, high-density polyethylene, metallocene-catalyzed polyethylene, or low-density polyethylene , linear low density polyethylene, medium density polyethylene, high density polyethylene and a blend of at least two components of metallocene-catalyzed polyethylene.
[0011] The material of the...
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