Talking about the combination printing of labels

Combining printed products can be found everywhere in our daily life. For example, the banknotes we use every day are the products of a variety of printing processes. usually. 3. Combined printing refers to a flow production line made up of various types of printing and finishing machines. Or use a variety of printing process features. The process of obtaining a product by printing it through its own equipment and incorporating a postpress process. Especially in the label printing of the packaging industry, the combination printing has been rapidly developed in recent years.

At present, in domestic label assembly printing, first, the production line of the unit type is used to print flexographic, screen printing, and glazing, laminating, die-cutting, and post-press processing equipment to form a flow production line, achieving multiple types of printing on the same product. Postpress technology. This printing production method can improve the grade of label prints and meet the needs of the rapid development of the label market. It is characterized by fast production speed and high efficiency. However, we should also see that the unit production line is mainly designed to cooperate with the production of specific high-volume label products and thus the product structure is relatively simple and cannot meet the flexible and short-changing products on the market. The second is the use of offset printing. The respective characteristics of flexographic, screen printing, and embossing printing processes are printed on different devices and combined with postpress processing. This kind of printing production method has the characteristics of good processing and flexible printing effect, can make full use of the company's existing equipment, to meet the market changes in short-term label products is the current domestic small and medium-sized printing companies in the label printing combination of the main production methods.

Since combination printing is a complex of multiple printing processes, there are bound to be various contradictions in practical use. From a process point of view, first of all, it must be ensured that the sequence of the units used in the combined press has sufficient variability. To adapt to a variety of printed materials required for the printing process portfolio. Choose as few printing methods as possible to get the best printing results. Secondly, the prepress design and plate-making level of label printing play an important role in the quality of label printing. For example, for flexographic screen printing, gravure printing and embossing, the design of the large-area gradient-graded pattern is minimized to avoid printing. Due to the expansion of outlets, the quality and ideal status of the products have deviated. In addition, due to the anti-counterfeit and aesthetic considerations, the requirements of modern labels on the process are getting higher and higher. Many companies hope to equip their products with special labels. For example, the Pantene series of labels is a gravure first to create a metallic effect, followed by flexo printing, screen printing, and polishing. The flickering metal texture is in strong resonance with consumers who seek elegant taste. To achieve this special effect either need special processing. Either require the product to reflect the characteristics of a variety of printing methods. In short, the colorful product packaging puts forward higher requirements for label printing and the label combination printing makes the printing of product labels more enjoyable.

Finally, let's look at the narrow web printing technology that represents the direction of the development of label combination printing. Among them, flexographic printing presses are mainly used, in addition to rotary offset printing, rotary screen printing, rotary gravure printing and special processing equipment such as rotary hot stamping, cold stamping, film transfer, die cutting, slitting and rewinding, super Light and so on. Therefore, the combination of multiple processes becomes a distinctive feature of narrow-width rotary machines. Various processes can be freely interchanged on the multi-functional platform to ensure the flexibility of the process can be achieved, and the imagination can also be fully utilized in the design.

As a brand-new power in packaging printing, label printing has been favored by more and more people of insight due to its huge development prospects and rich profits. With the application of new processes, new technologies, and new materials in the printing industry, a large number of applications for label printing are showing their strong advantages.

Reprinted from: Printed Today