Interpretation of Wine Packaging Printing Process

[Chinese Packaging Network News] wine packaging design and printing the difficulty is not as complex as the smoke, printing and offset printing and a few typical post-processing, gravure printing and screen printing as a supplement. 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 white cardboard and white cardboard with a basis weight of 350 g/m2.

Liquor packaging printing has traditionally used offset printing as the main method, using heavy-paper multi-color offset printing presses, such as Heidelberg multi-color offset printing presses, which are beautifully printed and fast, capable of printing 0.6-1.0 mm thick paper, and the speed can reach 15,000 sheets/hour. The 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 time, the “first deep and shallow” printing method can be used. When designing, avoid boring text on the field version to avoid increasing the difficulty of overprinting.

Nowadays, due to the widespread adoption 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 technical transformation of offset presses to fundamentally solve 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 inks to print fine sand, gold, silver and other common offset printing.

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.

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 application of the screen UV, the three-dimensional effect is strong and 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.