Plastic film inspection
[Project Introduction]
The plastic film industry in China is in a stage of vigorous development. It is reported that the demand for plastic films in China will grow at a rate of more than 9% annually. From the perspective of the application fields of plastic films, the packaging industry has the largest consumption, the most varieties and the widest application. Its consumption accounts for about two-thirds, and it is used for food packaging, electrical product packaging, daily necessities packaging, clothing packaging, etc. In terms of materials, the most widely used ones are plastic films made from resins such as polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polystyrene (PS), ethylene/vinyl acetate (EVA), and polyamide (PA). With the continuous emergence of various new materials, new equipment and new processes, it will drive China's plastic films to develop in the direction of diversified varieties, specialization and multi-functional composite films.
[Test Reference Standard]
Num | Test items | Reference standard |
1 | Thickness | GB/T 6672 - 2001 |
2 | Tensile force and elongation at break
| GB/T 1040.3 - 2006 |
3 | Viscosity | BB/T 0024 - 2004 |
4 | Elastic recovery, permanent deformation and tensile force retention | GB/T 6548 - 1998 |
5 | Puncture resistance | GB/T 6547 - 1998 ISO 3034：1991 |
6 | Mass per unit area | GB/T 2679.7 - 2005 |