BOPP synthetic label paper is fully capable of secondary processing, such as laminating and die-cutting. These secondary processing processes are of great significance for improving the performance, aesthetics and applicability of label paper.
First, film processing
The coating processing of BOPP synthetic label paper is mainly to increase the wear resistance, water resistance, pollution resistance and beauty of the label. According to the printing and processing method of raw materials, the coating of self-adhesive labels is divided into single paper coating and roll material coating.
Sheet laminating: Usually done on a laminating machine. The composite process may include two ways: immediate coating composite and pre-coating composite. That is, the coating compound is coated with adhesive on the surface of the BOPP film on the roll, and after drying, it is combined with the single paper; The pre-coated film composite is the use of a composite film with adhesive on the surface in advance, and the film is bonded to the paper under the action of a hot press roller.
Coating of the drum material: It is completed in the composite station of the label machine or a special composite machine. In recent years, the paperless composite film has gradually become the mainstream because of its low cost and good laminating effect. In addition, dry laminating and UV laminating processes are also widely used in the laminating process of BOPP synthetic label paper, especially for high-volume, high-quality label products.
Second, die cutting processing
Die-cutting is an important part of the post-printing processing of self-adhesive labels, which can cut the labels into specific shapes and sizes. For BOPP synthetic labels, die-cutting is equally applicable and important.
Die-cutting equipment: The common die-cutting equipment on the market includes intermittent paper rolling circular die-cutting equipment, full rotary paper rolling circular die-cutting equipment and high-speed flat die-cutting equipment. These devices have their own advantages and disadvantages, and are suitable for label die-cutting processing in different batches and requirements.
Die-cutting process: With the development of the self-adhesive label industry, the die-cutting process is also improving. For example, new technologies such as digital die-cutting and laser die-cutting have been gradually applied to the die-cutting processing of self-adhesive labels, improving the processing efficiency and accuracy.
Third,Summary
In summary, BOPP synthetic label paper not only has good physical and chemical properties, but also has excellent secondary processing properties. Through the secondary processing process such as laminating and die-cutting, the performance and beauty of the label paper can be further improved to meet the needs of different fields and occasions. Therefore, BOPP synthetic label paper has a wide range of application prospects in packaging, marking and other fields.