Environmentally friendly, thermally insulating, fully degradable packaging bag for express delivery

摘要

Environmentally friendly, thermally insulating, fully degradable packaging bag for express delivery The utility model is for a fully degradable packaging bag for express delivery, comprising a bag body, one side of the bag body has a opening for placing or removing packaging contents, the bag body comprises a surface layer (1) and an inner layer (2), and a sandwich layer is formed between the surface layer and the inner layer, the outer surface of the surface layer is provided with a covering film (4), the sandwich layer is filled with thermally insulating fibers, the edge of the opening of the bag body is bonded with a waterproof closure strip (3), the closure strip sealed (3) has a wide edge (301) for assembly, the wide edge (301) for assembly is bonded to the edge of the opening of the bag body by thermocompression; the surface layer and the internal layer are respectively a non-woven material in PAL in one piece, the surface layer covers the internal layer to form the bag body, two lateral edges of the bag body are folded and then bonded by thermocompression to form two closed sides of the bag body. Figure for the abstract: Fig. 3.