Structure and selection principles of corrugated boxes


Corrugated boxis a carton made of corrugated cardboard or paste. It is generally used to pack goods and is easy to transport. So do you know the structure of the corrugated box? How to choose a corrugated box? Let ’s take a look at the structure and selection principles of corrugated boxes together.

  Corrugated cardboard box structure

  Corrugated cardboard boxes are single corrugated single wall, double corrugated double wall, three corrugated three wall, etc. The first two are commonly used.

  Corrugated carton is a paper packaging container made of corrugated base paper, core paper and carton paper through corrugation, gluing, drying, cutting, printing, creasing, grooving, nailing or sticking.

  In the production of corrugated boxes, low-weight paper is generally used as the core paper, and thick paper is used as the surface or inner paper. The main direction of future development is low-weight, high-strength, light-corrugated carton products.

corrugated boxes

  Corrugated box selection principle

  When choosing corrugated boxes, first of all, take into account the nature, weight, storage and transportation conditions and circulation environment of the product. Secondly, it should be designed according to the principles of shockproof packaging design and corrugated box design methods. In addition, relevant standards must be followed. Standards or foreign requirements, and relevant tests, so the following two points should be noted when selecting corrugated box packaging.

  1. Model of corrugated cardboard. Corrugated models are classified into A, B, C, and E according to the height of the corrugated board. The mechanical properties of different corrugated boards are also different. Type A corrugated paperboard has the highest plane pressure and greater compressive strength, while Type B has the opposite. Plane pressure, vertical pressure, parallel pressure and cushioning force of Type C are good. Thickness between corrugated paperboards, Type A is the largest, Type C Secondly, Type B is the second and Type E is the smallest. Due to the small thickness of the cardboard, it is easier to bend. Therefore, B-shaped corrugated paper is widely used in packaging and shipping boxes that do not require high compressive strength of the box. According to the difference of corrugated cardboard For mechanical properties, it is better to use A or C type for single-sided corrugated boxes, and it is better to use A, B or B, C types for double-sided corrugated boxes. Type B, which is close to the outer surface, can resist impact. The combination of A, B or B, C can improve the physical and mechanical properties of the carton. From the perspective of printability, both B and C are good for printing.

  2. box shape of corrugated box. 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. For example, for a carton with the same volume, the length: width: height is 2: 1: 2, which saves the most material, and the ratio is 1: 1: 1, which consumes the most material. Therefore, the use of square boxes should be avoided as much as possible. The utilization of the volume of the product by the product, the utilization of the volume of the truck and train compartments, and the stability of the stacking during storage and pumping should be taken into account.

  The above is an introduction to the structure and selection principles of corrugated boxes. I hope everyone will understand the structure and selection principles of corrugated boxes, which will be helpful to everyone.

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