Meaning
Quality assurance procedures measure the ability of packaging materials to block specific wavelengths of light from reaching sensitive contents. Through spectral barrier testing, technicians evaluate the transmission of ultraviolet and visible light through plastic, glass, or composite containers. This testing governs the selection of packaging for light-sensitive products like pharmaceuticals or food and stops applying once the material meets the required transmission limits.
It is performed in specialized laboratory environments.
Product Integrity
Distribution channels for perishable goods require packaging that protects the product from light-induced spoilage during transport and storage. When spectral barrier testing confirms that a material blocks harmful wavelengths, it ensures that the product’s shelf life is maintained in retail displays. This protection prevents premature product degradation and reduces waste across the entire supply chain.
It supports the brand’s commitment to quality.
Contractual Compliance
Supply contracts for light-sensitive ingredients specify the required barrier performance of the packaging used by the supplier. These agreements mandate that the supplier provide certification of spectral barrier testing with each shipment to prove compliance with quality standards. If the testing reveals that the packaging fails to meet the specified transmission limits, the buyer has the right to reject the shipment and claim damages.
This contractual requirement protects the buyer’s production process.
Material Selection
Packaging engineers use spectrophotometers to measure light transmission across different wavelengths. This data helps select the right additives, such as UV blockers, for the packaging material. It ensures that the chosen container offers optimal protection.
