Packaging carton manufacturers have corrugated boxes and single-layer cardboard boxes according to the paper quality. Cardboard boxes are commonly used in three layers, five layers, seven layers are less used, each layer is divided into lining paper, corrugated paper, core paper, face paper, face paper has tea board paper, kraft paper, corrugated paper for core paper, various paper colors and The feel is different, and the paper (color, feel) produced by different manufacturers is also different. Corrugated cardboard with different corrugated shapes has different functions. Even if the same quality of top and back paper are used, due to the difference in corrugated shape, the performance of the formed corrugated cardboard is also different. Their technical indicators and requirements are shown in Table 1. Corrugated cardboard made of A-shaped corrugation has better cushioning properties and is rich in elasticity, and C-shaped corrugated is next to A-shaped corrugated. However, stiffness and impact resistance are better than A-type flutes; B-type flutes have a large array density, and the surface of the corrugated cardboard is flat, with high bearing pressure, and suitable for printing; E-type flutes are thin and dense, which shows its rigid strength.
When packing and carton manufacturers produce and manufacture corrugated boxes, they are generally distinguished by the box type.
The box type structure of packaging carton manufacturers generally adopts the international carton box type standard jointly developed by the European Corrugated Box Manufacturers Association (FEFCO) and the Swiss Cardboard Association (ASSCO). This standard is approved internationally by the International Corrugated Board Association. According to international carton box standards, carton structures can be divided into two types: basic and combined.
The basic type is the basic box type. There are legends in the standard to check. Generally, it is represented by four digits. The first two digits indicate the type of box type.
For example: 02 means slotted carton; 03 means nested carton. The combination type is a basic type combination, that is, it is composed of two or more basic box types, which are represented by multiple sets of four digits or codes. For example, the upper flap of a carton can be type 0204, and the lower flap can be type 0215.
With the popularity of fine goods, more and more cardboard boxes of white paper, and this industry is more and more closely related to printing, at the same time, it has also promoted the development of computer graphic design. China’s national packaging carton manufacturer standard GB6543-86 refers to the international box standard series and specifies the basic box types of single and double corrugated boxes for transportation and packaging.
However, in the late 1980s, with the change of distribution channels and market sales forms, a number of non-standard corrugated cardboard boxes with novel structures emerged, and with the birth of each new structure, almost a set of The corresponding automatic packaging system or packaging equipment came out, which greatly enriched the market for carton applications.