BOPP films: The Mainstream Films for Flexible Packaging

In the fields of flexible packaging, labels, and composite films, BOPP  is the leading thin-film technologies.

Ⅰ. What is the BOPP films?

 BOPP : Biaxially Oriented Polypropylene Film 

• Raw material ：PP (Polypropylene)  Particle 
• Craftsmanship ：PP Melt extrusion → Longitudinal stretching → Transverse stretching → Forming and winding 
• Positioning ：Traditional general-purpose film , industry applications 30 + Year, with the largest production capacity and the best cost-performance ratio.  

Ⅱ. Core Features

Rigidity versus Resilience :High rigidity, high stiffness , firm and not limp, with strong crispness; after printing, it remains flat without curling at the edges. 

1. Temperature Resistance:Not cold-tolerant , the embrittlement point is approximately 0℃ , refrigerated / Prone to brittleness and cracking in frozen conditions; heat-resistant up to approximately 120℃ 
2. Heat-sealing performance (packaging core) ：It can hardly be heat-sealed directly. , with no heat-seal layer on the surface; adhesive coating and lamination are required. PE Laminating or coating with a heat-sealant increases processing steps and costs. 
3. Recyclability (an essential environmental requirement) : Difficult to recycle,PP After biaxial stretching, it exhibits high crystallinity and structural stability, resulting in low recyclability; once compounded, it becomes even more difficult to separate. 
4. Appearance and Printing : High gloss, high transparency , transparency 90%+ , with vibrant colors and high clarity, ideal for premium printing 
5. Cost and Capacity: Low cost, production capacity at full utilization , global production capacity exceeds 3000 Ten thousand tons, with stable prices and unbeatable value. 

Ⅲ. Application Scenarios

Core Use: Printed composite outer layers, labels, adhesive tapes, general packaging, and aluminized base films 

• Food: outer layers of snack bags, bread bags, and packaging for dry goods 
• Daily Chemicals: shampoo labels, skincare product outer packaging, and composite films for daily-use products. 
• Industrial: adhesive tape base film, aluminized film substrate, paper-plastic composite film 
• Others: cigarette packs, laminated paper, stationery packaging 

Applicable Scenarios : Room temperature, no heat sealing required, prioritizing cost-effectiveness and print quality.