One of the most commonly used materials in packaging industry is carton. As an indispensable part of modern logistics, cartons are able to bear the important responsibility of packing, protecting products and beautiful appearance. The physical performance index of packaging carton is the basis of its quality evaluation. In this regard, carton manufacturers in the design and production of cartons will pay special attention to their types and classification. Among them, heavy carton is also a special classification. After all, the weight of each product is different, and the weight range of various cartons is different. When customers come into contact with cartons, they all need to pass a certain carton test. The purpose of carton test is to check the quality of cartons and whether they meet the actual standards.

重型纸箱

Heavy carton

对于包装纸箱的测试，大概有边压、耐破、平压、戳穿、粘合剥离、水份、抗压等基本测试，延伸测试有吸水性、挺度、防潮性能、印刷耐磨性、竖压等一系列测试。

For the test of packaging carton, there are some basic tests, such as edge pressure, burst resistance, flat pressure, puncture, adhesion and stripping, moisture content and compression resistance. The extension test includes a series of tests such as water absorption, stiffness, moisture resistance, printing wear resistance, vertical pressure, etc.

重型纸箱

Heavy carton

直接影响瓦楞纸箱的支撑强度– 瓦楞纸箱承受重力主要是靠楞，边压即是考核楞强度的佳途径；影响瓦楞纸板边压强度的主要因素：瓦楞纸板的生产工艺、瓦楞纸板的结构、瓦楞纸板的楞形、瓦楞粘合剂的影响。边压强度的定义：在瓦楞方向上，一定高度的瓦楞纸板，单位长度(100mm)所能承受的垂直均匀增大的力，称为瓦楞纸板的边压强度。耐破强度测试的意义：影响瓦楞纸箱的侧支撑强度– 瓦楞纸箱防护产品，耐破即是考核纸板单位面积所能承受均匀及增大的大压力值。

Direct impact on the supporting strength of corrugated box - corrugated box mainly relies on the corrugated box to bear gravity, and edge pressure is the best way to assess the strength of corrugated box; the main factors affecting the edge pressure strength of corrugated paper board are: the production process of corrugated board, the structure of corrugated board, the shape of corrugated board and the influence of corrugated adhesive. Definition of edge pressure strength: in the corrugated direction, a certain height of corrugated board, unit length (100 mm) can bear the vertical uniform increase of force, called the edge pressure strength of corrugated board. The significance of bursting strength test: it affects the side support strength of corrugated box - corrugated box protection products, burst is the maximum pressure value that can be uniformly and increased by examining the unit area of paperboard.

该测试是考察纸箱在实际运输环境中承受静态的局部挤压的能力；耐破强度的定义：瓦楞纸板单位面积所能承受的均匀增大的大压力值为瓦楞纸板的耐破强度。戳穿强度测试的意义：考核纸板耐外部突然冲击所能承受的能量；戳穿强度的定义：一定形状的角锥穿过瓦楞板所做的功，所显示的能量称为瓦楞纸板的戳穿强度。粘合强度测试的意义：粘合强度不足容易造成分层，大大降纸箱抗压强度；粘合强度的定义：瓦楞纸板的面、里、芯纸和波形瓦楞纸的楞峰粘合程度，在一定单位长度内经分离测试所能承受的大剥离力。厚度测试的意义：如果纸板在加工过程中，瓦楞高度损失过大，例如经过模切，即压痕，开槽或者印刷，就会大大降。纸箱的抗压强度，因此保持瓦楞纸板的厚度应成为生产过程着重把握的一环。

The test is to investigate the ability of cartons to withstand static local extrusion in the actual transportation environment; the definition of bursting strength: the maximum pressure that corrugated paperboard can bear per unit area is the bursting strength of corrugated board. The significance of puncture strength test: to examine the energy that the paperboard can withstand against sudden external impact; the definition of puncture strength: the work done by a certain shaped pyramid through the corrugated board, and the energy displayed is called the piercing strength of corrugated board. The meaning of bond strength test: insufficient adhesive strength is easy to cause delamination, which greatly reduces the compressive strength of cartons; the definition of adhesion strength is the maximum peeling force that can be borne by separation test within a certain unit length. Significance of thickness test: if the corrugated height loss is too large in the process of paperboard processing, such as die cutting, indentation, slotting or printing, it will be greatly reduced. Therefore, keeping the thickness of corrugated board should be a key link in the production process.