Understanding the structure of a multilayer film can help verify materials against specification, compare alternative or competitor films, support packaging development and investigate unexpected pack performance.
Our specialists use a combination of analytical and microscopy techniques, including:
- FTIR-ATR spectroscopy
- Differential scanning calorimetry (DSC)
- Microtome sectioning
- Optical microscopy
- Hot-stage microscopy
These techniques can be combined to identify and characterise individual layers within complex film structures.
Multilayer plastic film structure viewed in cross-section under polarised light.
The cross-section shown above illustrates a multilayer plastic film viewed under polarised light using a half-wave tint plate. Individual layers were characterised using a combination of hot-stage microscopy, differential scanning calorimetry and infrared spectroscopy.
Film structure analysis can be used to:
- Check supplied materials against specification
- Characterise multilayer and coextruded film structures
- Compare different or competitor films
- Support material selection and packaging development
- Investigate packaging performance issues, including unexpected shelf-life performance
Talk to our experts about your film structure, material specification or packaging performance issue.
