Ampacet has introduced an ultraviolet-light absorber (UVA) masterbatch for thin gauge polyolefin films designed to protect packaged contents from UV light damage. Compared to conventional UVAs, the new masterbatch offers improved content protection for thin gauge film applications with fewer problems due to additive migration.

Ultraviolet light affects packaged food and other light sensitive products, potentially causing discolouration, off-taste, odour, diminished nutritional value and decreased product performance. While the traditional use of rigid, corrugated and pigmented packages shielded products from UV light, the growing use of clear, flexible packaging exposes products to UV light. UV absorbers are needed to protect the contents of clear packaging from UV damage, preserving brand image and improving sustainability by increasing product shelf-life.

Ampacet’s new UVA masterbatch contains a unique UV absorber system that screens a broad range of UV light wavelengths from 280 to 380 nm. The new UVA is more efficient than conventional UVAs and so can be used at lower loadings and in thinner film gauges. The new masterbatch also blooms less than conventional UVAs, creating stronger seals, better print and lamination adhesion. The new masterbatch mitigates plate-out on processing equipment and reduces the occurrence of white residue on packages. Its reduced migration results in longer-lasting UV protection.