After cosmetics are transported, shelf display and other aspects must reach consumers, and good transport packaging is required. At present, the main packaging of cosmetics is mainly corrugated cartons, and the main test indicators are the compressive strength and stacking tests of cartons.
1. Carton compressive strength test
The test corrugated box is placed between the two plates of the compression testing machine, and the compression speed is set. The pressure at the beginning of the test is based on the crushing pressure of the carton, that is, the pressure strength of the carton, expressed in KN. Please note that the preload value (usually 220N) is set according to the test standard.
2. Carton stacking test
During storage and transportation, cartons need to be stacked and placed in the lowest level cartons to withstand a higher number of cartons. In order not to collapse, they must have appropriate compressive strength after stacking. Therefore, stacking and maximum pressure is a double force for testing. important.