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Shrink film tab, click to enter the Chinese version

More popular shrink film labels, label printing and processing industry, especially with the development of China's market economy, product packaging, the form of more diverse costumes hollow containers to the diversity of species, structure and shape, the direction of professionalization developments. Polyester (PET) bottles and beverage packaging, rapid and sustained growth, and improve the quality of food and beverage packaging market is more active, in addition to carbonated soft drinks, fruit juices, vegetable juices, mineral water bottles marked on the use of shrink film, in recent years to tea drinks and beer market development, used in these containers or packaging, so that the achievements of the rapid development of the heat shrinkable film labels. Heat shrinkable film label film label, a directional tensile sheet or tubular plastic film printing and labeling process, heating it will soon be along the outer contour of the container shrink, close to the At the surface of the container. There are two types of shrink film labels: a sleeve shrink label (called shrink-sleeve), another full wrap shrink label (called wrap-around), of which the sleeve shrink label large room for growth. So, here we talk more about the sleeve shrink film labels, this label production as follows: pre-printed shrink film made of tubular volume at a certain direction to a mandrel, and then proceed to set long cut, cut labels into the label position, heating, so that you can tag predetermined contour of the bottle affixed on the container. In the printing process as a heat shrinkable film labels, labels in the production process shrinkage deformation is yes, sometimes deformed, and in different directions and location of contraction deformation may be different. Therefore, in the design of printed shrink film labels how to do a good job of the label graphics and bar code shrinkage deformation error is the production of shrink film label is different from other stickers printed. We come together to analyze how to make them shrink film labels. 1, prepress processing of shrink film, BOPP plastic film to get a good printability, surface tension of the film should be larger than the surface tension of the ink, while the surface to have a certain roughness to the formation of the adsorption force. Polyolefin plastic film such as PP, PE film is a non-polar polymer materials, chemical stability, low surface tension, lower than the tension of the ink. Poor ink adhesion. And some film surface tension and ink tension equal to or even higher, but its surface is smooth, nonporous surface adsorption force is small, while the opening of the kinds of films in the synthetic resin antistatic agent anti-aging agent will also affect the the surface properties of the film, its printability deterioration. The majority of shrink film, there are some printability problems. In order to improve the printability of the film surface must be the poor performance of the film on the printing surface pretreatment to improve the force of surface tension and surface adsorption. Commonly used method to corona treatment, plasma treatment, chemical processing, and label surface coating method and so on.

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