VMBOPP film, or Vapor Metallized Biaxially Oriented Polypropylene film, is a type of plastic film that has been coated with a thin layer of metal, typically aluminum. The biaxial orientation of the polypropylene provides the film with excellent clarity, tensile strength, and resistance to tearing, while the metal coating provides a high barrier to light, oxygen, and moisture. This combination of properties makes VMBOPP film an attractive choice for packaging applications where both clarity and barrier properties are important, such as food packaging, pharmaceutical packaging, and consumer goods packaging. The film can be easily processed into various shapes and sizes, and it is often used in laminated structures to provide a high level of protection for the packaged products.
VMBOPP film, or Vapor Metallized Biaxially Oriented Polypropylene film, is typically produced using the following process:
Polypropylene (PP) resin is melted and extruded through a flat die to form a sheet of PP.
The sheet of PP is then stretched in two directions to form a biaxially oriented polypropylene (BOPP) film. This process improves the mechanical properties of the film and provides it with excellent clarity and resistance to tearing.
The BOPP film is then passed through a metal deposition chamber, where a thin layer of metal, usually aluminum, is vapor deposited onto one or both sides of the film.
The metalized film is then cooled and wound onto rolls.
This process results in a VMBOPP film that has excellent barrier properties and clarity, making it a popular choice for packaging applications where these properties are important. The film can be printed, laminated, or otherwise processed into various forms to meet the specific needs of the end-user.
