Packaging box and packaging material

Abstract

The invention provides a packaging box and a packaging material for liquid food. The packaging box comprises a top board and a bottom board. A top edge of the top board comprises a left top edge body,a right top edge body, a front top edge body and a rear top edge body. A bottom edge of the bottom board comprises a left bottom edge body, a right bottom edge body, a front bottom edge body and a rear bottom edge body. A surface extending from the left top edge body to the left bottom edge body is a left side wall. A surface extending from the right top edge body to the right bottom edge body isa right side wall. A surface extending from the front top edge body to the front bottom edge body is a front wall. A surface extending from the rear top edge body to the rear bottom edge body is a rear wall. Angular fins are arranged on the two sides of the top board of the packaging box in an extension manner. One corresponding angular fin is outwards folded along the left top edge body to be onthe surface of the left side wall, and the other corresponding angular fin is downwards folded along the right top edge body to be on the surface of the right side wall. The top board is provided with a transverse sealing position. The rear wall is provided with a lengthways sealing position. The front top edge body of the top board is no longer than the left top edge body. According to the packaging box and the packaging material for the liquid food, the distance between the transverse sealing position and the front wall is lengthened, it is beneficial for arranging a large-hole-diameter opening device on the top of the packaging box, and then the articles contained in the packaging box can flow out more efficiently.

Description

technical field [0001] The invention relates to a packaging box and packaging material, in particular to a packaging box for liquid beverages and a paper-based composite packaging material. Background technique [0002] Liquid foods such as milk, yogurt, and semi-liquid foods such as juice are usually sold in small volume packaging containers. For liquid or semi-liquid food, the current packaging containers are mostly made of paper-based composite packaging materials, the paper-based composite packaging material has a paper base layer and the upper surface and lower surface of the paper base layer are blocked by one or more layers, respectively. Covered by a material layer, the barrier material layer can protect the paper base layer from contacting the liquid food inside the packaging container, and also has the functions of shading, blocking the penetration of gas and moisture in the external environment, and extending the shelf life of the liquid food. The barrier materia...

AI Technical Summary

Problems solved by technology

[0004] In order to facilitate opening, an opening device, such as a packaging cover, will be installed on the packaging container. The packaging cover is usually set on the top of the packaging container. In order to facilitate the flow of liquid, the opening of the packaging cover should not be too small, but the area on the top of the small volume packaging container is limited. , when sealing the packaging container, there will be a horizontal seal in the middle of the top of the packaging container, which further divides the limited top area and makes the space reserved for installing the packaging cover more tense. It is difficult to set the packaging cover that meets the size requirements on the top of the packaging box. Increased inconvenience for drinking

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