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Corrugated boxes are widely used in the outer packaging of commodities due to their characteristics and environmental advantages, and play an important role in the transportation, preservation and sales of commodities. In the process of use, the carton is required to achieve a certain degree of firmness and durability.
In order to avoid such a situation and produce qualified carton products, it is necessary to test the corrugated box, so that the production process of the corrugated box can be effectively controlled. Therefore, it is of great significance to correctly understand and understand the testing items and testing methods of corrugated boxes.

What are the testing items for corrugated boxes?
1. Overview of appearance quality
Qualified cartons require clear printed patterns and handwriting, no broken lines and missing patterns, consistent pattern chromaticity,printing position error. It is also required that the box body joints are standardized, the edges are neat, and the corners are not overlapped.
2. Moisture content
The moisture content refers to the moisture content in the corrugated base paper or cardboard, expressed as a percentage.
Corrugated base paper has certain pressure resistance, tensile resistance, puncture resistance and folding resistance. If the moisture content is too low, the paper will be too brittle, easily broken when corrugated, and the folding resistance will be poor.
3. Cardboard thickness
The thickness of corrugated cardboard refers to the vertical distance between the upper and lower sides of the corrugated cardboard under a certain pressure, in millimeters. It is one of the inspection items for the appearance defects of the carton, and directly affects the edge compressive strength, puncture strength and compressive strength of the cardboard. .