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Carton knowledge
Jul 20, 2018

Corrugated cardboard is made by bonding paper, paper, core paper and corrugated paper processed into corrugated corrugated. According to the demand of commodity packaging, corrugated board can be processed into single-faced corrugated board, three-layer corrugated board, five-layer, seven-layer, eleven-layer corrugated board.


The corrugated cardboard of different corrugated shapes also has different functions. Even with the same quality of face paper and backing paper, the performance of the corrugated board formed is different due to the difference in the shape of the enamel. There are four types of corrugated shapes commonly used in the world, which are A-type C, C-type 楞, B-type E and E-type 楞. Their technical indicators and requirements are shown in Table 1. Corrugated cardboard made of type A enamel has good cushioning properties and a certain elasticity, and type C 楞 is second to A. However, the stiffness and impact resistance are better than that of type A; the type B has a high density of arrangement, the surface of the corrugated board is flat, and the bearing pressure is high, which is suitable for printing; the type E is thin and dense, and it presents its just strength.


The difference between containers and non-containers is mainly in the outer diameter and is closely related to the type of corrugated. The relationship between the inner diameter specifications, manufacturing specifications, and outer diameter specifications of the carton will be detailed below through the following table



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