Description
CPP Film/Cast Polypropylene Film for packing/Extrusion laminatef fim/heat sealing film
CPP film [1] is cast POLYPROPYLENE film, also known as unstretched polypropylene film, which can be divided into General CPP (GCPP) film and aluminized CPP (Metalize CPP) film according to different uses. MCPP) film and Retort GRADE CPP (Retort CPP, RCPP) film, etc.
CPP is polypropylene (PP) film produced by flow extrusion process in plastic industry. This kind of film is different from BOPP(bidirectional polypropylene) film and belongs to non-oriented film. Strictly speaking, CPP films only have a certain orientation in the longitudinal (MD) direction, mainly due to the nature of the process. Excellent clarity and finish is achieved on the film by rapid cooling on the cold casting roll.
CPP-C112 is a three layers co-extrusion cast polypropylene film.Film can be extrusion laminated and has low haze,high slip,and low heat sealing temperature properties.CPP-C112can be extrusion laminated for food medicine and commodity packaging.
Character-Good transparency
-High slip
-132 ºC heat sealing
-High peel strength for extrusion laminated Item | Test Method | Unit | Typical Vslues |
Thickness | ASTM D 2673 | mil(mic) | 0.8(20) | 1.0(25) | 1.2(30) |
Density | ASTM D792 | g/cm3 | 0.9 | 0.9 | 0.9 |
Haze | ASTM D1003 | % | 2.8 | 3.6 | 4.2 |
Gloss | ASTM D2457 | 45o | 85 | 85 | 85 |
Tensile strength | MD | ASTM D882 | Psi | 8800 | 8500 | 8400 |
TD | 5100 | 5000 | 4950 |
Elongation at break | MD | ASTM D 882 | % | 550 | 580 | 600 |
TD | 670 | 680 | 700 |
Secant Modulus | MD | ASTM D 882 | Psi | 83000 | 82000 | 81000 |
TD | 75000 | 73000 | 71000 |
C.O.F | ASTM D1894 | -- | 0.2 | 0.2 | 0.2 |
Wetting tension | ASTM D2578 | Dyne/cm | 38 | 38 | 38 |
Heat seal tenperature | HC Method | ºC | 132 | 132 | 132 |
WVTR | ASTM D1249 | g/100in2/24h | 1.1 | 0.85 | 0.72 |
OTR | ASTM D3985 | g/100in2/24h | 240 | 190 | 160 |
1,MD machine direction TD transverse direction |
2,the value is typical, not the standard |