Classification and structure of packaging paperboxes
Packaging cartons can be seen everywhere in our daily life, and have a wide range of applications. Among many packaging boxes, packaging cartons occupy most of the market.
The forming process of the carton is generally to cut the cardboard, crease and press the line, and then bend it or bind it, glue it, and paste it. According to different materials, cartons can be divided into corrugated cartons, whiteboard cartons, cardboard cartons, etc. Different shapes can be divided into square cartons, round cartons, polygonal cartons, special-shaped cartons, etc. According to the proportional relationship between the opening surface of the package and other surfaces, the one with the smaller opening surface is called "tube type" packaging; the one with the larger opening surface is called "disc type" packaging.
The structure of the common carton is also the shake-top carton, which refers to the carton in which the back of the box cover is combined with the box body. Buckle lid carton refers to a carton made of two pieces of cardboard for the lid and the box body respectively. A portable carton refers to a carton with a handle on the upper part of the box body. A drawer carton refers to a fixed structure carton similar to a drawer.
In industrial production, according to whether the carton can be folded after forming, it is divided into fixed cartons and folding cartons. The former is made by pasting the substrate cardboard with the veneer material, so it is also called a "pasted paper box". Once it is formed, all sides of the box body are fixed and cannot be folded. Folding cartons can be folded to save storage and transportation space when the contents are not packed. It is the most widely used paper packaging container.