Open window type visual packing box and manufacturing method thereof

Abstract

The invention relates to an open window type visual packing box and a manufacturing method thereof. A closed visual window is arranged on the side face of a box body, a box body forming material comprises a first PE layer, a paper layer, a second PE layer and a PE film from outside to inside through uncovering and covering, the first PE layer is formed by laminating a film on the outer surface ofthe paper layer, the second PE layer is formed by laminating a film on the inner surface of the paper layer, the second PE layer and the PE film are compounded through a PE bonding layer, and an opening of the visual window is correspondingly formed in the first PE layer, the paper layer and the second PE layer. The manufacturing method comprises the steps that a film is laminated on the smooth surface of the paper layer to form the first PE layer, and a film is laminated on the coarse surface of the paper layer to form the second PE layer; the shape and the position of the visual window are designed; layout design patterns are printed, and an insulation adhesive layer is printed; the film laminating paper and the PE film are compounded; transverse cutting is performed; die cutting is performed; box pasting is performed; the top and bottom of the box are sealed. The content of the packing box is convenient to observe, the quality is reliable, leakage is prevented, and edible safety isensured.

Description

technical field [0001] The invention belongs to the technical field of paper-plastic beverage packaging boxes, and in particular relates to a window-opening type visual packaging box and a preparation method thereof. Background technique [0002] At present, brick-shaped, roof-shaped, diamond-shaped and other shapes of packaging boxes for beverages, dairy products, and condiments on the market only have the net content of the contents marked on them, and consumers have no way of knowing the actual net content of the contents of the package. Get verified, also can't see the contents of the box. [0003] Application number 200320114999.X discloses a "beverage packaging box with observation hole", specifically discloses that the material structure of the beverage packaging box is paper (outer layer) / plastic film layer (inner layer), and an observation hole is processed on the outer layer of paper . The material structure of the packaging box disclosed in this patent is simple...

AI Technical Summary

Problems solved by technology

The material structure of the packaging box disclosed in this patent is simple, and it is not feasible for food-grade packaging boxes. There is no waterproof and moisture-proof protective layer on the outer layer of the paper, and there is no heat sealing when the packaging box is formed and filled with beverages, and when the top is sealed. film, it cannot be guaranteed that the materials in contact with the food and beverage are completely food-grade when forming a beverage packaging box, and the preparation process of the beverage packaging box is not disclosed

Images