RCPP film is a high-performance category of casting polypropylene film (CPP) based on its application. Its full name is retort CPP.
RCPP is a packaging material specifically designed to withstand high-temperature sterilization environments. With its reliable high-temperature sterilization performance, good heat-sealing strength, oil resistance, and air tightness, it plays a crucial role in packaging fields that require high-temperature sterilization, especially in food packaging.
By providing safe and hygienic packaging solutions, it effectively extends the shelf life of products and is an important member of the modern flexible packaging material family.
The reason why the RCPP film is capable of withstanding high-temperature boiling conditions lies in its unique combination of properties:
Outstanding high-temperature resistance: This is the core feature of RCPP film. It can withstand 121℃ for 30 minutes or even more demanding high-temperature steam sterilization processes without significant deformation, delamination, or performance degradation. This ensures the long-term quality of the packaged contents after sterilization.
Excellent heat sealing performance: RCPP film is usually used as the inner layer material of packaging bags. Another key function of this film is to provide strong and reliable heat sealing strength. Even after high-temperature boiling, the seal point can still remain intact, effectively preventing leakage.
Good barrier properties and content resistance: RCPP film has good barrier properties against water vapor, which helps maintain the quality of the contents. At the same time, it also has good oil resistance and chemical resistance, capable of adapting to food contents with oils or sauces.
Product Name | RCPP film | ||||
Testing Item | Unit | Typical Value | Testing Method | ||
regular 121℃ | High 135℃ | ||||
Thickness | μm | 80 | 80μm | GB/T 6672 | |
Tensile Strength | MD | Mpa | ≥50 | ≥50 | GB/T 1040.3 |
TD | Mpa | ≥30 | ≥30 | GB/T 1040.3 | |
Elongation at break | MD | % | ≥400 | ≥400 | GB/T 1040.3 |
TD | % | ≥500 | ≥500 | GB/T 1040.3 | |
C.O.F. (untreated side) | - | ≤0.3 | ≤0.3 | QB/T 2358 | |
Heat Sealing Strength | N/15mm | ≥15 | ≥15 | QB/T 2358 | |
Haze | % | ≤6 | ≤8 | GB/T 2410 | |
Wetting Tension | Treated side | mN/cm | ≥38 | ≥38 | GB/T 14216 |
