1. Mainly flexo printing
North America regards flexo printing as the leading technology for printing adhesive labels roll
typical representatives. The main equipment is small and medium-sized unit printing units, mainly is ink. It adopts roll-to-roll printing and rotary die-cutting with high production efficiency, it has the characteristics of advanced technology and environmental protection.
2. Letterpress and flexo are half and half
This process Mainly appeared in Europe, flexo printing application is basically the same as the United States, Letterpress printing also accounts for 50%, and letterpress printing using UV inks, most of the equipment for cascading or satellite. The way of material process is also printed from reel to reel.
3. Mainly letterpress printing
This approach is dominated by the Asia-pacific region. Most of the developing countries are in the Asia-pacific region, label printing is still relatively backward, even with letterpress printing, But the use of UV ink equipment is only a minority, Most label printing still use resin-ink roll-to-roll printing and sheet-fed printing, Due to the high proportion of manual labeling, sheet-fed offset adhesive labels roll are widely used, for die - cutting, it is mainly flat die-cutting.
4. Offset printing
Offset printing is the main way in China for label printing plant to print paper adhesive labels roll. Offset printing is characterized by fine graphics and text, rich layers, it is suitable for mass printing, printing equipment can be a multi-purpose machine, which is suitable for the characteristics of the Chinese label market. But sheet-of-paper offset printing is not suitable for printing surface, because it is without absorbent film, the film label is mainly for roll-to-roll printing, so volatile drying ink is needed. Offset printing can print thicker plastic materials, such as in-mold label or label tags, But the machine must be equipped with UV curing device, which requires a considerable cost.
5. Screen printing
Screen printing is the most adaptable printing method for substrate, At present, there are many screen printing plants using low-cost screen printing equipment to contract adhesive cterized by strong ink, three - dimensional, UV ink can be used to print film products. In addition to a handful of rotary screen printing equipment that can be capable of volume to volume label printing, most of the screen printing equipment is semi-automatic flat screen printing machine, which can only print sheet products, its overprinter precision is not high, it is not suitable for supporting the production line of film label equipment. In the business transformation of postpress processing, the corresponding changes of label postpress processing should also be paid attention to, For example, in the printing of adhesive label, adhesive labels roll postpress processing should be divided into sheet processing and web processing according to the label application form.