Tianjin carton factory in the selection of corrugated boxes should first take into account the nature of the product, weight, storage and transportation conditions and circulation environment，Secondly, it should be designed according to the shock-proof packaging design principle and corrugated box design method，There are also standards to follow，For example, the packaging of export commodities should meet international standards or foreign requirements，And have to go through the relevant tests，Therefore, the selection of corrugated box packaging should generally pay attention to the following two points。

　　⑴ Corrugated cardboard model

　　Corrugated models, according to the corrugated height is divided into A,B,C,E four categories, different corrugated cardboard mechanical properties are also different。The plane pressure of type A corrugated board is the highest，High compressive strength，Type B is the opposite，The plane pressure, vertical pressure, parallel pressure and buffer force of type C are good;The thickness between corrugated cardboard，Type A is the largest，Type C is second，Type B again，Type E * small，Because of the small thickness of the cardboard processing bending is easier，因此，B-shaped corrugated paper is widely used in packing boxes with low pressure strength requirements.According to the different mechanical properties of corrugated cardboard, single-sided corrugated boxes with A or C type is good, double-sided corrugated boxes with A,B or B,C type combination is appropriate, close to the outer surface with B type, can play an impact resistance。A,B type or B, C type combined, can improve the physical and mechanical properties of the carton;From the printability comparison, both type B and type C are conducive to printing。

　　(2) The box shape of the tile crutch carton

　　Under the premise of ensuring the quality of the carton, the processing materials and packaging costs of the carton should be saved as much as possible。比如.For cartons with the same volume, save materials when the length: width: height is 2:1:2, and cost materials when the ratio is 1:1:1。Therefore, square boxes should be avoided as much as possible.It is also necessary to take into account the utilization rate of the product to the box volume, the utilization rate of the box to the volume of the truck and the train car, and the stability of the stacking when warehousing and pumping.

　　What is the direct relationship between the break resistance and the pressure resistance of the carton

　　According to Tianjin Carton Factory, pressure resistance generally refers to static force, in addition to static pressure also includes dynamic impact force。The former can be determined by the largest accumulation experiment, and the latter is generally selected by natural fall of a certain height and accidental impact in the process of handling and the degree of transportation turbulence。

　　Tianjin Carton Factory: What is the concept difference between carton puncture strength and rupture resistance

　　The penetration strength refers to the maximum power that the carton can withstand against sudden impact;The breaking strength refers to the internal resistance to local extrusion.Now the standard of domestic light industry has canceled the puncture strength index, but the export carton still has requirements。