An FFS heavy-duty packaging film and a preparation method thereof belong to the technical field of heavy-duty packaging films. The FFS heavy-duty packaging film consists of an outer layer, a middle layer and an inner layer from outside to inside at a thickness ratio of (1–2):(1–2):1. The outer layer comprises the following components in parts by weight: 20–40 parts of metallocene linear low-density polyethylene and 60–80 parts of random copolymer polypropylene. The middle layer comprises the following components in parts by weight: 40–60 parts of linear low-density polyethylene, 20–40 parts of metallocene linear low-density polyethylene and 20–40 parts of random copolymer polypropylene. The inner layer comprises the following components in parts by weight: 20–40 parts of metallocene linear low-density polyethylene and 60–80 parts of random copolymer polypropylene. The FFS heavy-duty packaging film has high mechanical strength, excellent heat-sealing performance and stable friction coefficient, and can be used in automatic packaging lines for large-scale synthetic resin products.
Area Code: CN
Application Number: CN201910963893.2
