Self-adhesive sticker printing production method
Because of the different regions, the self-adhesive sticker printing production also has its own unique printing methods. In the world, we can roughly divide the printing of self-adhesive stickers into several regional printing camps: flexo printing in North America, half of flexographic printing in Europe, embossing in the Asia-Pacific region, and offset screen printing in line with China's national conditions. Biyin Bazaar will introduce each self-adhesive sticker printing production method for everyone. 1. Mainly flexographic North America is a typical representative of self-adhesive labels printed with flexographic printing as the leading technology. The main equipment is a small and medium-sized unit type printing unit, mainly ink, using roll-to-roll printing, circular pressure and circular die-cutting method, with high production efficiency, advanced technology and environmental protection requirements. 2. Embossing and flexo printing are half of this processing method mostly in Europe, the application of flexographic printing is basically the same as that of the United States, letterpress printing also accounts for 50% of the proportion, and letterpress printing all use UV ink, most of the equipment is stacked or satellite. The material processing method is also roll-to-roll printing. 3. Mainly embossed This method is mainly in the Asia-Pacific region. Most of the developing countries in the Asia-Pacific region are still relatively backward in label printing, even if letterpress printing is used, only a few use UV ink equipment, and most of the label printing still uses resin ink, roll-to-roll printing and sheet-fed printing. Due to the high proportion of manual labeling, sheet-fed offset self-adhesive labels are widely used; In the die-cutting method, it is mainly flat-pressed die-cutting. 4. Offset printing Offset printing is the main way for label printing factories in China to print paper stickers. Offset printing is characterized by fine graphics and rich layers, suitable for large-scale printing, and printing equipment can be used for multiple purposes, suitable for the characteristics of China's label market. However, sheet-fed offset printing is not suitable for films that do not have absorbent printing on the printing surface, because film labels are mostly roll-to-roll printing, which requires volatile dry inks. Offset printing can print thicker plastic materials, such as in-mold labels and label tags, but the machine must be equipped with a UV curing device, which requires a large amount of money. 5. Screen printing Screen printing is the most widely adaptable printing method for substrates, at present, there are many screen printing factories using low-cost screen printing equipment to contract self-adhesive label and film label printing business. Screen printing labels are characterized by heavy ink color and strong three-dimensional effect, and film products can be printed with UV ink. In addition to a handful of rotary screen printing equipment that can be competent for roll-to-roll label printing, most of the screen printing equipment is a semi-automatic flat screen printing machine, which can only print a single product, and the overprint accuracy is not high, which is not suitable for the film label production equipment supporting the production line. For example, when printing self-adhesive labels, the post-press processing of self-adhesive is divided into sheet-fed paper processing and web paper processing according to the application form of the label. Do you have an understanding of the above five most commonly used self-adhesive sticker printing production methods in the world? If you have other printing needs, you can go to this website to understand.