- Packaging materials
Material characterisation
Multilayer film characterisation
We provide a comprehensive characterisation of multilayer films of interest. To do so, we identify the number of layers they contain, as well as their materials and thicknesses.
Multilayer film characterisation addresses the following needs:
- Identify the composition of unknown samples
- Verify compliance with specifications, standards or legislation
- Production control at factory output
- Monitor changes in the material during thermoforming processes or thermal treatments of the food (pasteurisation, sterilisation)
Through this type of characterisation, we meet the needs of plastic material manufacturers, as well as packers of a wide range of products, both food and non-food (pharmaceutical, cosmetic, etc.).
At AINIA, we add value
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We are specialists in analysing the interaction between the product and the packaging, assessing the suitability of each packaging solution according to the product it contains.
- We ensure packaging safety control
- We have more than 20 years of experience in this field
- Our technical staff is highly qualified and provides personalised advice tailored to each client’s needs
- We keep companies up to date with the latest regulatory and market trends
- Our team has extensive experience in the field of food contact materials, including:
- Participation in standardisation committee meetings
- Participation in reference laboratory forums for food contact materials
- Training in food contact materials through tailor-made courses
- Training of health inspectors through programmes such as BTFS (Best Training for Safer Food) or TAIEX (Technical Assistance Information Exchange Office)
Check accreditation at: ENAC accreditations – AINIA laboratories
Material characterisation
The characterisation of the structure of packaging materials is based on the following tests:
- Determination of the number of layers that make up the material, as well as measurement of the total thickness and the thickness of each individual layer by microscopy
- Identification of the external layers of the material by Fourier Transform Infrared Spectroscopy (FTIR)
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Thermal analysis by Differential Scanning Calorimetry (DSC), which allows the identification of thermal transitions occurring in the polymer (endothermic and exothermic processes)
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Based on these tests, the structure of the material is determined. The combination of these techniques enables a full understanding of the material structure and the thickness of the layers that make up the multilayer material.
The final report includes not only the individual results of each test and observation, but also the overall film characterisation derived from them as a conclusion.
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