Home Food Production Machines Comparison of common printing methods of several corrugated boxes

Comparison of common printing methods of several corrugated boxes

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corrugated box is an ordinary paper packaging product closely related to our life and production. The printing quality of corrugated box is not only related to the appearance quality of corrugated box, but also affects the sales prospect of packaged products and the image of commodity manufacturers. Therefore, it is particularly important to analyze how to improve the surface printing effect of corrugated box, how to choose the appropriate printing process and further reduce the processing cost of corrugated box. Here we will discuss these aspects. 1、 The processing technology of corrugated board the processing technology of corrugated board is mainly divided into two categories 1 Production process of full-automatic corrugated board production line the corrugated board production process is widely used. It has the advantages of large production batch, large carton forming volume, good corrugated shape quality and so on. The corrugated board produced by this process is usually made into cartons through water-based printing, slotting, pasting, molding and other processes. This kind of transportation process is mainly used to produce cartons. 2. Production process of semi-automatic corrugated board production line. The corrugated board production process is to first print face paper, and then mount it with corrugated core paper and paperboard. The corrugated board produced by this process is usually packed into boxes through die-cutting, indentation, nail sticking and other processes. The carton produced by this process has good forming quality and good surface treatment effect. The cartons produced by this process can be used as sales packaging. 2、 Conventional carton printing methods conventional carton printing methods mainly include flexo printing, offset printing and screen printing. 1 Flexographic printing corrugated box the conventional flexographic printing corrugated box process is to print directly on the corrugated board, using water-based ink. Therefore, some people also call this process watermark. Flexographic direct printing has the following characteristics: (1) large format. The maximum width of wide flexographic printing press can reach 2.5m ~ 2.8m. (2) The price is low. Flexo has high printing resistance and can be reused; Ink prices are also low. (3) For example, the production can be completed through the linkage of the slotting machine and the creasing machine. (4) The strength of cartons is reduced less. Because flexo printing is light pressure printing, it has little effect on the strength of corrugated board. (5) The printing accuracy is not high. The number of conventional offset screen lines is 175 lines /inch, while the number of conventional screen lines of flexographic cartons is 35 lines /inch ~ 65 lines /inch. It is a low-precision printing method, which is most suitable for printing text line drafts. Although the printing quality of four-color images has been improved in recent years, there are still limitations. (6) Plate making is easy and difficult, text line draft plate making is easy, and four-color image plate making is more difficult. (7) The stability of printing quality is not good, which is mainly reflected in the difficulty in controlling the depth of printing ink. Flexographic direct printing process is applicable to the production process of the first type of carton. At present, it is widely used in carton factories in China. 2. Offset printing corrugated box conventional offset printing corrugated box adopts indirect printing method, that is, first print the carton face paper, and then mount the printed face paper on the corrugated board.

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