Duo UK has joined forces with masterbatch specialists Colloids in a move which allows Duo to achieve its 97% opacity guarantee for mailing bags.
Under the project, masterbatch has already reduced usage by 5%.
Duo approached Colloids with a challenge to achieve consistency across its mailing bags while reducing the amount of virgin material used and waste produced.
Colloids R&D department used the laboratory cast film and its ability to measure the opacity level in correlation with the opacity meter of Duo.
The company ran trials across seven colors of polythene film using these techniques and achieved 97% opacity readings for the seven thicknesses ranging from 40-100 micron, specified by Duo.
Colloids produced a bespoke opacity chart for Duo detailing masterbatch addition levels for each color and thickness of polythene tested.
Duo UK operations director Dale Brimelow said the company produces mailing bags for likes of ASOS, JD Williams and F+F at Tesco.
"This project will have a significant impact on our operational efficiency and reduces our environmental footprint. This in turn allows us to offer a more cost effective solution to clients