What Is The Relationship Between The Hardness And Quality Of Corrugated Carton

 What Is The Relationship Between The Hardness And Quality Of Corrugated Carton

Is the harder the corrugated box better? What is the relationship between the hardness and quality of corrugated cartons?

Many people believe that the higher hardness of corrugated cartons, the better quality. Actually, this statement is incorrect. The relationship between them is not a simple proportional relationship. Below we will share with you the relationship between the hardness and quality of corrugated cartons

1、 The relationship between the hardness of corrugated cartons quality, How to judge the quality of corrugated cartons?

The quality of a cardboard box depends on three indicators: first, the bursting strength of the box, which is the uniform pressure that the cardboard can withstand per unit area. Secondly, the variable pressure strength of cardboard boxes is the ability of corrugated cartons to withstand pressure parallel to the corrugated direction. Another aspect is the compressive strength of corrugated cartons, which refers to the force generated by uniformly increasing displacement to compress the boxes, and the force that the boxes can withstand. These three points are the standards that truly determine the quality of carton boxes.

2. The relationship between the hardness of corrugated cardboard and the quality of the cartons.

The hardness of corrugated boxes is not necessarily related to their quality. There are many types of corrugated boxes. The hardness of corrugated boxes made of different materials also varies, and their uses may also vary. It cannot be said that the lower the hardness, the worse the quality of the cardboard box. We need to choose suitable paper according to our actual use to make carton boxes.

2、 The Corresponding Relationship between the Hardness of Corrugated carton and Materials

1. The relationship between the firmness and hardness of corrugated cartons

Corrugated cartons are made of cardboard, and cardboard is made of corrugated paper. A board made of corrugated paper and corrugated paper processed from corrugated paper rods. Generally, it is divided into five types: A, B, C, E, and f, with different hardness and compressive strength. Corrugated cardboard production line

2. The relationship between the quantity of corrugated cartons and their hardness

The cardboard used in corrugated boxes is composed of corrugated paper with different corrugated shapes. Common combinations of corrugations include AB corrugations, CB corrugations, BE corrugations, etc. And the thickness of the cardboard will also be different!

3、 Selection of corrugated carton

1. Selection of corrugated carton materials

AB corrugated thickness is 7mm, CB corrugated thickness is 6mm, and BE corrugated thickness is 4.5-5mm! The purpose of each type of corrugated box is also different. AB cold CB cold is suitable for making large and heavy cardboard boxes for packaging large items such as air conditioners and televisions. BE leng is used on small cardboard boxes, such as our phones, department stores, express packages, and so on. For details, please consult the cardboard box manufacturer, who will recommend suitable materials.

2. Selection of the number of layers of corrugated cardboard cartons

Corrugated cardboard boxes are mainly divided into three layers, five layers, and seven layers. Among these three types of cardboard boxes, three-layer corrugated cardboard boxes have relatively weak hardness, so they are usually used for packaging smaller items; Five layer cardboard boxes have stronger hardness than three layer cardboard boxes and are commonly used for packaging fragile items. Seven layer and three layer corrugated cardboard boxes have strong hardness, so they are used for packaging machinery and other products. The above is the relationship between the hardness and quality of corrugated boxes shared by corrugated box manufacturers.