Compared with ordinary packaging film, POF shrink film has some differences in material, characteristics and application.
POF shrink film is a heat shrink film made of polyolefin polymers, while ordinary packaging film can be a variety of different materials, such as polyethylene film (PE film), polyvinyl chloride film (PVC film) and so on.
Secondly, POF shrink film has high shrinkage performance. After heating, the POF film shrinks significantly in both horizontal and vertical directions, enabling it to wrap the item and form a tight seal. And ordinary packaging film, such as PE film, its shrinkage performance is poor, can not form a tight seal like POF film.
In addition, POF shrink film has high transparency and gloss. Due to its excellent material, the film made has a high transparency, so that the packaging items can be clearly displayed, increasing the attractiveness of the goods. The ordinary packaging film generally has low transparency and does not have the high gloss of POF film.
In addition, POF shrink film has good thermal shrinkage and freezing resistance. Under high temperature heating, the POF film can shrink rapidly and is suitable for packaging items of various shapes. Moreover, POF film can also maintain its flexibility and freezing resistance at low temperatures, which is suitable for packaging that needs to be stored for a long time, such as frozen food. In contrast, ordinary packaging film usually only has a certain degree of thermal shrinkage performance, and the freezing performance is poor.
In addition, POF films have excellent tear resistance and mechanical strength. Due to its special material, the packaging made of POF film can effectively resist physical damage such as tearing and breaking, which increases the stability and durability of the packaged items.
POF shrink film has good environmental performance. Compared with ordinary packaging film, POF film production process does not use harmful substances, does not produce toxic gases, in line with environmental requirements.
In summary, there are obvious differences between POF shrink film and ordinary packaging film in terms of material, characteristics and application. POF shrink film has high shrinkage performance, transparency and gloss, as well as good thermal shrinkage performance, freezing resistance and other characteristics, widely used in electronic products, food and beverage, daily necessities and other fields. In contrast, the characteristics and application range of ordinary packaging films are relatively limited.