Complaint
In the packaging sector, biaxially oriented polypropylene (BOPP) film is the most used material; actually BOPP constitutes two-thirds of all biaxially oriented films. In a lamination, they provide printability, transparent or matte appearance, or slip properties. The film provides a surface suitable for receiving organic or inorganic coatings for gas and moisture barrier properties. The films also provides a heat sealable layer for bag forming and sealing, or a layer that is suitable for receiving an adhesive either by coating or by laminating. However, BOPP is a nondegradable material, and as is the case with other packaging materials derived from fossil fuel resources, there is a tendency to replace them with packaging materials derived from renewable resources due to concerns with the disposal of these bulky materials, generation of greenhouse gases, and depletion of fossil fuel resources.
| No. | Item | Unit | Result | |
| 1 | Width bias | mm | 0 | |
| 2 | Thickness bias | % | -0.93 | |
| 3 | Average thickness bias | % | 0.64 | |
| 4 | Tensile strength | MD | Mpa | 182.6 |
| TD | 295.3 | |||
| 5 | Elongation | MD | % | 158.5 |
| TD | 59.2 | |||
| 6 | Modulus(reference value) | MD | Mpa | 2033.82 |
| 7 | Heat shrinkage | MD | % | 3.5 |
| TD | 3.9 | |||
| 8 | Haze | % | 1.72 | |
| 9 | Gloss | % | 96.2 | |
| 10 | Decaying rate of static | Treated side | 22.32 | |
| No-treated side | 20.58 | |||
| 11 | COF(q/m) | Outside/Metal | 0.218/0.146 | |
| Inside/ Metal | 0.311/0.213 | |||
