Commonly Used Lamination Film Are ?

Commonly used plastic films are: polyvinyl chloride (PVC), polypropylene (BOPP) and polyester (PET) films. Among them, BOPP film (15-20pm) is flexible, non-toxic, high transparency and low price, and is an ideal composite material in the film coating process. [ thermal lamination machine ]


Depending on the properties of the film itself and the purpose of use, the thickness of the film is preferably between 0.01 and 0.02 mm. It must be treated by corona or other methods. The surface tension of the treated surface should be 4 Pa, so as to have better wettability and adhesion. The corona treatment surface should be uniform and the transparency should be as high as possible to ensure the best definition of the covered print. [ thermal laminator ] The transmittance of PET is generally 88-90%, and the transmittance of other films is usually between 92-93%. The film needs to have good light resistance, is not easy to change color under long-time illumination, and the geometric size is stable.


Since the film is in contact with a solvent, a binder, an ink, etc., it must have a certain chemical stability. The appearance of the film surface should be flat, without unevenness and wrinkles, and the film is required to have no bubbles, shrinkage holes, pinholes and pitting. Due to the limited adjustment ability of the laminating machine, it is also required that the rewinding is neat and the two sides are elastic and uniform to ensure uniform coating.[ lamination machine manufacturer ] Of course, the cost is low.