Factors Affecting the Compressive Strength Test of Carton

The carton compressive strength test is accomplished by the carton compressive tester . However, the factors that affect the compressive strength of the carton include the following:

1 ) Raw material quality The base paper is the decisive factor in determining the compressive strength of the carton , as can be seen from the kellicutt formula. However, the influence of other conditions in the production process of corrugated cardboard can not be ignored, such as the amount of adhesives, impregnation, coating, and composite processing.

2 ) The moisture cartons are made of corrugated board with high water content, or stored in a humid environment for a long time, will reduce their compressive strength. Fiber is a kind of strong water absorption. In the rainy season and high humidity in the air, the moisture balance between the moisture in the paperboard and the atmospheric environment is very important.

3 ) Box type box type refers to the type of box and the size ratio of the same type box, and they have a significant influence on the compressive strength. Some carton boxes are composed of double-layer corrugated paperboards, and their compressive strength is significantly higher than that of single-layer boxes of the same specifications. Under the same conditions, the higher the box, the worse the stability and the lower the compressive strength.

4 ) Printing and aperture printing will reduce the compressive strength of the carton. Packing products with air permeability requirements to open holes in the box surface, or punching the handle hole in the box side will reduce the strength of the carton, especially the opening area is large, biased to one side, etc., the impact is more obvious.

5 ) Deviations in processing process During the boxing process, improper pressure lines, deep grooves, and poor bonding will reduce the compressive strength of the box.