Composite aseptic bags

A composite aseptic packaging bag for liquid foods, comprising: a packaging bag, a straw insertion port, a hard plastic and aluminum foil composite layer, or a paper aluminum composite layer. The left and right edges of the packaging bag and the upper edge are sealed by a wide edge. The end face has a neat cut, and a straw insertion port is provided on the packaging bag. The packaging bag adopts a hard plastic and aluminum foil composite layer or a paper aluminum composite layer. When a hard plastic and aluminum foil composite layer is used, the aluminum foil layer and the high melting point hard plastic layer are compounded. A hard plastic layer is formed on the outside, and an aluminum foil layer is included. On the composite layer, there is a printed layer, and the printed layer is covered with a hard plastic layer. The utility model has the advantages of hard and strong handle, and solves the problem of discoloration of the aseptic packaging bag by adding a layer of hard plastic layer; the edges are broad sides, and the utility model has a knife-cut appearance and neatness; the straw insertion port is provided on the packaging bag, and the utility model can also be conveniently used. The use of straws; seal sealing temperature around 90 °C, and cut with a knife, the finished product does not smell.