Polypropylene film
A polypropylene film and copolymerized polypropylene technology, applied in the field of polypropylene film, can solve the problems of poor temperature resistance and impact resistance, easy to break bags, leakage, etc., and achieve excellent impact resistance, good dimensional stability, thermal good sealing strength
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Embodiment 1
[0037] Outer layer: 98% 1#+2% 6#, accounting for 20% of the layer thickness,
[0038] Middle layer: 80% 1#+20% 3#, accounting for 60% of the layer thickness
[0039] Heat seal layer: 98% 1#+2% 6#, accounting for 20% of the layer thickness.
[0040] The polypropylene film prepared according to this embodiment was boiled for 30 minutes at 121-135 degrees centigrade without stretching.
Embodiment 2
[0042] Outer layer: 100% 1#, accounting for 20% of the layer thickness,
[0043] Middle layer: 80% 2# or 4#+20% 5#, accounting for 60% of the layer thickness
[0044] Heat seal layer: 98% 1#+2% 7#, accounting for 20% of the layer thickness.
[0045] The polypropylene film prepared according to this embodiment was boiled for 30 minutes at 121-135 degrees centigrade without stretching.
Embodiment 3
[0047] Outer layer: 95% 1#+5% 6#, accounting for 10% of the layer thickness,
[0048] Middle layer: 65% 1#+35% 3#, accounting for 80% of the layer thickness
[0049] Heat seal layer: 95% 1#+5% 6#, accounting for 10% of the layer thickness.
[0050] The polypropylene film prepared according to this embodiment was boiled for 30 minutes at 121-135 degrees centigrade without stretching.
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