Q
biaxially oriented polypropylene process
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The Biaxially Oriented Polypropylene (BOPP) process involves the production of a thermoplastic polymer film, which is stretched in two directions: longitudinally and transversely. This method significantly enhances the physical properties of the polypropylene film, including clarity, strength, barrier properties, and resistance to fatigue. The process begins with melting polypropylene and forming it into a sheet or tube. This is then rapidly cooled to create a semi-crystalline structure. The orientation in two axes occurs by heating the film and stretching it first in one direction and then in the perpendicular direction. The stretching aligns the polymer molecules, significantly improving the material's mechanical and optical properties. BOPP film is widely used in packaging, labeling, and lamination due to its durability, clarity, and food safety attributes. Investing in high-quality BOPP production can yield significant benefits for companies requiring advanced packaging solutions.
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