Metalized Polyester films are made of polyester that has been covered with various metals to create a metallic, glossy look. Another benefit of these films is that they do not wrinkle like aluminum foils.
Reflectivity
Reflectivity of metalized polyester films is an important consideration in vehicle and spacecraft applications. These films are coated with an aggressive acrylic adhesive system to produce a mirror-like finish. The films can be used for automotive trim, advertising displays, nameplates, and reflective shielding. The films have a high level of reflectivity and are used on vehicles to increase visibility.
The metals used to produce reflective films can be selected to create specific optical properties. For example, metals such as Al, Sn, and Cr can be selected to provide different levels of reflectivity. Depending on the composition, metals used to produce metalized polyester films may have slightly different optical properties.
Transparency
A biaxially oriented window metallized polyester film (BOPP) is a type of transparent film with excellent gloss and transparency. These films have excellent looks and are moisture and chemical resistant. Additionally, BOPP films come in a variety of textures including matte, glossy and silky.
The film can be coated with very fine silica particles for a textured or reflective surface. However, these films are not completely transparent and have a high scattered light percentage.
Gas barrier
Metalized Polyester films provide excellent gas barrier properties. They can reduce water vapor and oxygen permeation up to 100 times and have good microwave compatibility. However, it is important to choose the right coating for the application. The coating has to be durable and resilient. It should also adhere well to the substrate.
Metalized OPP films provide superior barrier performance over foil. They are strong and offer excellent yield. They are used in pouch lines for food and beverages. Common applications include cocoa powder, spices, seasoning blends, oatmeal, and powdered nutrition and energy drinks.
Durability
Metallic and other materials can be adhered to polyester films through adhesive coating or lamination. The resulting metallized film provides a smooth, metal-like finish. It can be slit into thin, tape-like sections and wound into spiral tubes. It is durable and can resist varying temperatures. It can be used in many applications such as drafting, stationery, and automotive interior trim.
The global market for metallised polyester films is segmented by application and end use. Its primary application is in packaging. Metalised polyester films have excellent barrier, machinability, and handling properties.
Applications
Metalised Polyester films are becoming increasingly popular for a variety of applications in the packaging industry. These films are available in a variety of finishes and are abrasion and corrosion-resistant. They also offer enhanced gas barrier performance, are free of heavy metals, and are the ideal solution for products that must retain scent, flavor, and aroma. Further, metallised polyester films are available in a variety of formats, including peelable and non-peelable lids.
In addition to point-of-sale materials, metallised polyester films are commonly used in graphic applications. Some of these applications include labels, posters, and displays. They are also used in the construction industry for thermal insulation, barrier applications, and other purposes.
