Wine packaging printing technology innovation

Compared with cigarette labels, wine packaging has some obvious features. There are many kinds of wine and there are many grades. Overall, the difficulty of printing wine packaging is not as complex as cigarette labelling. Printing and offset printing are the main types of post-processing. Gravure printing and screen printing are complementary methods.

People in the industry believe that liquor packaging printing is still based on offset printing, and printing colors are mainly four-color and spot colors. Labels for wine packaging are generally printed on coated paper, such as high-grade coated paper with basis weights of 80 g/m2 and 128 g/m2. The printing of wine boxes was based on a white paperboard and whiteboard with a basis weight of 350g/m~.

Prepress design

The development of prepress technology has improved the quality of packaging and decoration of goods. As we all know, in addition to tobacco, alcohol, food must pay attention to its own quality, packaging is also one of the keys to the success of its marketing. Wine packaging design is not only the idea of ​​an art designer, modern design should fully consider the application of materials, printing methods, post-press processing, environmental standards and the use of the manufacturer's filling methods, wine label paste process. Therefore, designers should have extensive knowledge and sufficient information. Past traditional graphic design software can no longer meet the needs of the market for packaging and printing products. Prepress design software is constantly being updated. For example, Esko-Graphics (www.esko-graphics.com) introduced a software application called Deskpack, which has strong professional design capabilities and is a prepress production tool application software.

Printing method

Liquor packaging printing is traditionally based on offset printing, using thick paper multi-color offset printing presses, such as Heidelberg multi-color offset printing press, beautifully printed, fast, capable of printing thick paper 0.6 ~ 1.0mm, speed can reach 1.5 10,000 sheets/hour, printing wine box is extremely suitable.

Offset printing is a more mature printing process, especially on screen printing, and there is a set of standardized and data-based methods. However, wine packaging printing involves a large number of spot color reproductions in addition to halftone printing, such as large-area red solids, gold (silver) colors, and pearlescent effects. Because spot colors, especially spot colors, have high requirements for saturation and brightness, offset printing is limited by the thickness of the ink layer when it is printed on the ground. At this point, the “first deep and shallow” printing method can be adopted. When designing, avoid boring texts on the field version to avoid increasing the difficulty of overprinting.

Nowadays, due to the widespread use of composite paper materials for wine packaging materials and printing with common inks, there are problems such as poor adhesion, friction resistance, and poor drying. Therefore, manufacturers generally carry out Uv technological transformation of offset presses, fundamentally solving the problems of composite paper prints. As Uv inks have greatly improved the physical properties of the ink surface, some packaging and printing companies have begun to use offset Uv ink to print fine sand, gold, silver and other common offset printing is difficult to achieve.

Due to high saturation, high contrast, high brightness, strong consistency, and high printing resistance, the gravure printing is another optional method for wine packaging printing. If the art design draft is large in the field and the ink color is thick, the ordinary offset printing is slightly insufficient, and the gravure printing method can meet the demand. Another advantage of gravure printing is that it can print other substrates than paper, such as printing on a laser anti-counterfeiting film, and then combining with cardboard to achieve another visual effect.

Due to the fact that gravure wine packaging is mostly based on field, color blocks and lines, the requirements for color management in plate making are relatively inflexible, and the control of the printing process is relatively easy compared to offset printing and flexographic printing.

Silk screen printing of frosted, refraction, ice, wrinkles and other artistic effects make wine box packaging icing on the cake, which greatly stimulated consumers' desire to purchase. In addition, because the brightness of the product is increased after the partial polishing with the screen uV, the three-dimensional effect is strong, and it is often used in the finishing of the wine packaging box. Flexographic printing is currently rarely used in the printing of wine packaging boxes, and some beer labels use this type of printing. Believe that its environmental protection and health advantages, will gradually be recognized and favored by the winery.

Looking into the future trend of wine packaging and printing, people in the industry believe that a variety of process combinations will become an ideal way for wine packaging and printing. Combined printing can bring out the characteristics of several printing methods. For example, when printing a product with a rich gradation, offset printing may be selected; when printing a spot color or a gold (silver) ink, a sheet-fed gravure may be used. When special decorative effects are required, screen printing can be used.

The combination of offset printing, gravure printing, screen printing and other three processes has brought a strong visual impact to the wine packaging box. In conjunction with the post-processing process, the wine packaging box has become a piece of art that is awesome. Postpress

According to different wine packaging designs, post-press processing includes lamination, hot stamping, embossing, local glazing, and die-cutting. Due to the rapid development of printing materials in recent years, the lamination film has been divided into a bright film, a matt film, and a laser. Film, laser anti-counterfeiting film.

In recent years, the embossing technology has been continuously innovated, and has been used in many applications such as gold paper and aluminized paper. After the text or pattern is stamped by a press, good visual effects can be obtained, and a good anti-counterfeit effect is also achieved. At the same time, some packaging and printing companies with strong technical strength have developed some new technologies. For example, in the middle and high-grade wine box packaging and printing, there has emerged the "hot stamp + embossing" post-press processing technology, and originally two separate processes " Hot stamping and embossing are integrated into a single process. A process can produce stamping, embossing or recessed text and patterns that look beautiful and play a crucial role. This technology reduces the number of processes and improves the production efficiency, thus saving costs. At present, the technology is being promoted and applied.

In the area of ​​post-press processing, a new technology has also emerged. It is also the integration of two independent processes, die-cutting and embossing, into one process, namely die-cutting + embossing, using the pressure of the equipment. Two traditional processes. This technique requires both the function of die-cutting and the effect of unevenness under the same pressure conditions. This innovative technology can increase the utilization of the equipment and reduce the cost of the printed gift box.

In the process of pursuing efficiency and economic efficiency, the development of new technologies has become a driving force for the sustainable development of enterprises. It is reasonable to believe that domestic packaging and printing companies will continue to introduce new technologies and innovative technologies and processes in the field of wine packaging printing.

Reprinted from: China Wine Network