Composite packaging material, sheet set and sealing package

Abstract

The invention provides a composite packaging material, a sheet set manufactured through the composite packaging material, and a sealing package. The composite packaging material comprises a plurality of units for forming individual packages. The composite packaging material is provided with a waterproof layer, a printing layer and a base layer, wherein each unit is provided with a mark, and the marks of every two units are different; an attaching layer, a separating layer and a covering layer cover each mark; the area of the attaching layer is more than that of the separating layer or the covering layer and is less than that of the waterproof layer. According to the technical scheme, the composite packaging material has the advantages that every liquid beverage is packed with only one mark, so that the unique mark of a product can be prevented from being scanned illegally before the product is sold; the attaching layer, the separating layer and the covering layer sequentially cover each mark; the area of the attaching layer is more than that of the separating layer or the covering layer, and the separating layer and the covering layer cover between the attaching layer and the waterproof layer, so that the circumstance that the combination force between layers is low, resulting in bubbles in the composite packaging material, can be solved, and as a result, the structure stability of the composite packaging material can be improved, and the flatness and aesthetics of the product surface can be maintained.

Description

technical field [0001] The present invention relates to the field of composite packaging materials, in particular to composite packaging materials for liquid beverage packaging, sheet groups cut from the packaging materials, and sealed packages manufactured from the packaging materials or sheet groups. Background technique [0002] Liquid foods, such as milk and yoghurt, and semi-liquid foods, such as juice, are usually sold in small volume consumer packaging containers. The packaging container is used to protect food throughout the value chain during transport and handling. [0003] Such packaging containers are formed from a continuous roll of packaging material that can be slit to form blanks, or sealed longitudinally to form tubes of packaging material, which are then sealed into shape while filling the contents, and finally sealed in the folding process. The bits are folded into the shape of the final package. [0004] For liquid or semi-liquid foods, current packagin...

AI Technical Summary

Problems solved by technology

[0006] The anti-counterfeit traceability mark set on the surface of the product outer packaging, if there is no cover, it is easy to have the mark stolen before the product is sold

In order to prevent this kind of problem, one solution is to cover the anti-counterfeiting traceability label. This effect can be achieved by sequentially setting an isolation layer and a cover layer on the surface of the product label. The cover layer makes the label hidden and isolated before the product is sold. The layer prevents the logo from being damaged during the process of scraping off the cover layer, but due to the weak bonding force between the release layer and the cover layer, it is easy to cause separation between the joint or the periphery of the release layer and the cover layer, resulting in blistering on the surface of the product package

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