BOPP - Biaxially Oriented Polypropylene
BOPP is one of the most widely used films in food packaging, especially for snacks, biscuits, candies, and dry goods.
Why is it popular:
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Very high clarity and gloss
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Crisp, stiff hand-feel (the classic “snack bag sound”)
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Excellent printability
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Good moisture resistance
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Low cost
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Very suitable as an outer layer in laminated bags
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Key Properties of BOPP:
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High transparency & gloss
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Good stiffness & crisp feel
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Good barrier to moisture (but not oxygen)
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Good dimensional stability
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Excellent for roto/flexo printing
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Not heat-sealable on its own → needs CPP/PE on inside
Common structures:
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BOPP / CPP (classic snack pouch)
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BOPP / PE
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BOPP / VMPET / PE
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BOPP / AL / PE
Types of BOPP used in packaging
Standard Clear BOPP
The basic version used for most food packaging.
Features:
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High gloss
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High clarity
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Good stiffness
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Best for printing
Matt BOPP (Matte OPP)
A matte surface for premium packaging.
Features:
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Soft matte appearance
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Upgraded brand feel
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Same stiffness as regular BOPP
Anti-fog BOPP
Used for fresh produce.
Features:
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Prevents condensation
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High clarity even in cold conditions
Heat-Sealable BOPP
Specially modified so the film itself can seal.
Features:
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Eliminates the need for CPP/PE inner layer in some applications
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Used for OPP pillow packs
Pearlized BOPP (White BOPP)
A milky/white OPP film with a smooth look.
Features:
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Opaque
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Excellent for colorful printing
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Lightweight
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Good for cold-seal applications
Coated BOPP (Acrylic, PVdC)
Extra coatings provide more barrier and better printability.
Acrylic-coated BOPP:
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Higher gloss
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Better ink adhesion
PVdC-coated BOPP:
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Improved barrier against oxygen & moisture
Metallized BOPP (MBOPP)
BOPP that has a thin layer of metal (usually aluminum).
Features:
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Shiny appearance
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Medium barrier
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Cost-effective alternative to VMPET