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What Is Single-Side PVDC Coated BOPP Film?

Single-side PVDC coated biaxially oriented polypropylene (BOPP) film is produced by applying a polyvinylidene chloride (PVDC) coating​ onto the corona-treated surface​ of a standard BOPP base film. The opposite side remains non-corona treated.

BOPP is one of the most widely used packaging substrates due to its low density, high transparency, excellent moisture barrier, and cost-effectiveness. Adding a PVDC coating on one side significantly upgrades its gas barrier, oil resistance, and aroma retention — making it suitable for applications that would otherwise require more expensive films like PET or metallized structures.

Key advantage over PVDC coated PET:​ BOPP is lighter (density ~0.91 g/cm³ vs. PET ~1.39 g/cm³), clearer, and generally lower cost. It also provides inherent moisture barrier superior to PET, making it a popular choice for dry snacks.

PVDC Coated BOPP vs. PVDC Coated PET

Key Properties

1. Excellent Gas Barrier (O₂, N₂, CO₂)

• Low oxygen transmission rate (OTR) – prevents oxidation and rancidity
• Effective nitrogen/carbon dioxide barrier – supports modified atmosphere packaging (MAP)
• Extends shelf life for baked goods and snacks

2. Superior Oil Resistance & Aroma Retention

• PVDC coating blocks grease and oil migration
• Preserves delicate flavors (butter, vanilla, spices) and prevents odor pickup from outside
• Critical for high-fat products like cookies and cakes

3. Good Water Vapor Barrier

• BOPP already has excellent inherent moisture barrier; PVDC coating further enhances it
• Keeps biscuits crisp and cakes moist

4. Good Printability & Transparency

• The PVDC-coated side accepts printing inks well for vibrant graphics
• High clarity allows product visibility through transparent packaging

5. Lightweight & Cost-Effective

• Lower density means more yield per kilogram
• Reduces material cost and transportation emissions

Primary Applications

Food Packaging – Cookies & Cakes

• Cookies and biscuits:​ Need moisture barrier to stay crunchy and oil barrier to prevent staining the package.
• Cakes and pastries:​ Require oxygen barrier to delay staling, plus aroma retention to keep fresh-baked scent.

Food Packaging – Nuts

• Nuts (peanuts, almonds, cashews):​ High oil content leads to rancidity without proper oxygen and oil barrier.
• PVDC coated BOPP provides an economical alternative to metallized films while maintaining transparency.

Household Products – Mosquito Coil Wraps

• Mosquito coils contain volatile active ingredients that must be retained.
• PVDC coating prevents active compound loss and blocks external moisture.
• Transparent film allows visual inspection of the coil.

Technical Specifications (Typical Range)

Note:​ Exact barrier values depend on PVDC formulation, coating thickness, and base film quality. Always consult manufacturer datasheets.

FAQ (SEO Snippet Target)

Q: What is single-side PVDC coated BOPP film?​

A: It is a BOPP film with a PVDC coating applied to one side (the corona-treated side) for enhanced gas, moisture, oil, and aroma barrier, while the other side remains uncoated.

Q: How does PVDC coated BOPP compare to metallized BOPP?​

A: PVDC coated BOPP is transparent​ (metallized is opaque), offers comparable gas barrier, and is often preferred when product visibility is desired. Metallized BOPP has superior light barrier.

Q: Can PVDC coated BOPP be heat-sealed?​

A: Typically, the uncoated side (non-corona) is used for heat-sealing or lamination. The PVDC side is usually the printing surface.

Q: Is PVDC coated BOPP suitable for microwave use?​

A: Generally no. PVDC can degrade under microwave heating. For microwave applications, consider uncoated BOPP or alternative coatings.

Q: What foods benefit most from this film?​

A: Dry snacks (cookies, crackers, nuts), baked goods (cakes, pastries), and any product needing oil resistance and aroma retention.

Conclusion

Single-side PVDC coated BOPP film offers an excellent balance of barrier performance, transparency, and cost-efficiency. By upgrading standard BOPP with a PVDC coating, converters can achieve gas and moisture barrier levels suitable for demanding snack and household packaging — without sacrificing the lightweight and clarity that make BOPP a favorite substrate.