According to different printing methods, different self-adhesive labels are used for printing

Silkscreen self-adhesive label is mainly applicable to the electronic machinery industry, and the film switch is a typical process product. Screen printing has the advantages of thick ink layer, bright colors, strong concavity and relief, strong visual impact, suitable for restoring simple lines. Color block. Text and other patterns, the total printing color number is generally not more than 4 colors, the disadvantage is that the printing gradient effect is poor, unable to achieve delicate multi-color printing effect.

At present, global self-adhesive label printing can be divided into the following camps:

1. Flexo printing is the main method

North America, represented by the United States and Canada, is the typical representative of flexographic printing self-adhesive labels. Its equipment for unit printing yuan, mainly for ink water - based ink, the use of circular die - cutting.

2. Embossed and flexo printing are equally divided

This processing method is mostly in Europe, flexographic printing and the application of the United States is basically the same, relief printing accounts for 50%, relief printing all use UV most ink equipment is layered or satellite.

3. Focus on embossing

This approach is mainly in the Asia-Pacific region. Most of the developing countries in the Asia-Pacific region, label printing is relatively backward. Even for relief printing, there are only a few UV ink equipment, and most label printing still uses resin ink. Roll printing and sheet printing coexist; Because of the high proportion of manual labeling, sheet paper offset self-adhesive label is widely used; Die cutting is mainly flat cutting.

4. Offset printing

Offset printing is the main way of printing paper adhesive in Chinese label printing plant. Offset printing has the characteristics of fine graphics, rich layers, suitable for large-scale printing, printing equipment can be used in one machine, suitable for the characteristics of the Chinese label market. However, sheet offset printing is not suitable for films with no absorption on the printed surface, as most film labels are crimp printing and require volatile dry ink. Offset printing can print thicker plastic materials, such as in-mold labels, label tags need to be installed on the machine UV curable equipment costs a lot of money.

5. Screen printing

Screen printing is a widely adaptable printing method. At present, many network printing plants use low-cost network printing equipment to undertake dry glue label and film label printing business. The network printing label has the characteristics of strong ink color, strong three-dimensional sense of UV ink printing film products. Except for a few rotary network printing equipment that can roll to roll label printing, most of the network printing equipment is semi-automatic flat network printing machine, can only print products, printing accuracy is not high, not suitable for the film label production equipment that matches the production line. In addition, in the process of business transformation, attention should also be paid to the corresponding changes in label post-printing processing. For example, when printing dry glue labels, the post-printing processing of dry glue is divided into single paper processing and roll paper processing according to the application form of the label.