Influence on the compressive strength of the carton
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) Moisture
Carton boxes are made of corrugated paperboard with high water content, or stored for a long time in a humid environment, will reduce its 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
The box type refers to the type of box and the ratio of the same kind of 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 Opening
Printing will reduce the carton compressive strength. 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) Processing process deviation vortex flowmeter
In the process of box making, improper pressure lines, deep grooves, and poor bonding, will reduce the compressive strength of the box. If the finished carton needs to reach a certain strength, it must be subjected to tests such as pressure resistance (carton compression tester), ring pressure, firm pressure, edge pressure, adhesion (ring pressure tester), and burst strength (rupture strength tester). , to assess whether the cartons delivered meet customer requirements or national standards.
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) Moisture
Carton boxes are made of corrugated paperboard with high water content, or stored for a long time in a humid environment, will reduce its 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
The box type refers to the type of box and the ratio of the same kind of 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 Opening
Printing will reduce the carton compressive strength. 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) Processing process deviation vortex flowmeter
In the process of box making, improper pressure lines, deep grooves, and poor bonding, will reduce the compressive strength of the box. If the finished carton needs to reach a certain strength, it must be subjected to tests such as pressure resistance (carton compression tester), ring pressure, firm pressure, edge pressure, adhesion (ring pressure tester), and burst strength (rupture strength tester). , to assess whether the cartons delivered meet customer requirements or national standards.
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