Smell the paper, touch it, fold it three times. First, smell the paper for any unpleasant odor. If so, the source and physical properties of the paper may be slightly inferior.
Secondly, touch the cardboard box to see if it is very soft. If it is soft and the corrugations collapse or deform, the material will be slightly inferior. Thirdly, fold the cardboard box a few times. If the cardboard breaks and the paper material is poor.
In addition, paper identification should focus on several keywords: cardboard box compression resistance, puncture resistance, and folding resistance.
Firstly, the compression resistance is related to the daily stacking height and transportation of cardboard boxes. If the paper material is good, the cardboard boxes manufactured will have relatively high compression resistance, and the probability of collapse of the goods in the cardboard box device will be low. If the material is poor, collapse may occur.
Secondly, it is puncture resistant. The cardboard box protects the contents from damage. The paper material is good, durable, and the cardboard is not easily punctured. In other words, when it comes into contact with sharp objects or external impacts, the cardboard box is not easily damaged and can effectively protect product safety during transportation.
Thirdly, the paper material is poor. Folding the cardboard a few times may result in broken or broken lines. However, the paper material is good and can withstand multiple folds. Additionally, cardboard boxes with poor material may have a strange odor and powder (residue) falling off.
