| Parameters |
Before retort processing |
After retort processing |
| 12 µm Polyethylene terephthalate (PET) / 9 µm Aluminium foil / 15 µm Nylon / 70 µm Cast Polypropylene |
| Total thickness μm |
110 |
110 |
| Tensile strength (Machine Direction) kg / cm2 |
446.58 |
437.49 |
| Tensile strength (Cross Direction) kg / cm2 |
358 |
349 |
| Elongation at break (Machine Direction)% |
156 |
149 |
| Elongation at break (Cross Direction) % |
124 |
112 |
| Tearing strength (Machine Direction) g |
116 |
108 |
| Tearing strength( Cross Direction) g |
102 |
96.0 |
| Seal strength (Top) kg /10mm |
3.96 |
3.78 |
| Seal strength (Side) kg/ 10mm |
4.86 |
4.26 |
| Seal strength (bottom) kg / 10 mm |
4.02 |
3.86 |
| Gas transmission rate (ml/m2/day) |
<0.021 |
<0.038 |
| Water vapour rate (gm/m2/day) |
<0.019 |
<0.032 |
| Total migration ( mg / kg) |
| Distilled water |
26.0 |
28.0 |
| 3 % Acetic acid |
38.0 |
42.0 |
| 50 % Ethyl alcohol |
26.0 |
29.0 |
| n- Heptane |
24.0 |
26.0 |
