Duo Packaging has commercialised 2DPE, a graphene enhanced polyethylene flexible packaging material developed with the University of Manchester’s Graphene Engineering Innovation Centre, moving the formulation into live retail use after trials with QVC increased recycled content while reducing film thickness and sealing temperature.
The Manchester manufacturer is initially targeting e-commerce mailing bags and autobagging film, where material has to withstand forming, filling, heat sealing, transport and handling while remaining thin enough to keep polymer consumption under control. Graphene is incorporated into the polyethylene formulation to improve mechanical properties, allowing Duo to increase the proportion of recycled resin without losing the strength required by automated packaging equipment.
Trials carried out with the Graphene Engineering Innovation Centre and QVC recorded improvements in strength of up to 35%, while recycled content in the QVC material increased from 45% to 60%. The sealing temperature was reduced by 15°C and film gauge fell from 30 microns to 28 microns, producing packaging that is about 5% lighter than the previous specification while continuing to run through the retailer’s automated bagging equipment.
QVC has adopted 2DPE as the standard autobagging film at its Liverpool fulfilment centre, giving the material an operating reference on commercial machinery rather than a laboratory or pilot extrusion line. The deployment follows earlier work between QVC and Duo to increase recycled content in autobagging film and introduce a closed-loop arrangement through which polyethylene waste from the site can be collected and returned to UK recycling facilities.
Flexible film provides relatively little material with which to absorb puncture, tearing, stretching and the stresses introduced during sealing, so reducing gauge while increasing recycled content creates competing requirements. Recycled polyethylene can also carry greater variation than virgin resin because the material has already experienced manufacturing and processing cycles, leaving formulation and process control responsible for keeping the finished film inside the mechanical range required by packaging equipment.
Graphene provides a reinforcement route when small quantities are distributed successfully through the polymer matrix, although laboratory performance does not guarantee industrial conversion. Additives have to pass through extrusion, film formation, printing, conversion and sealing without creating unstable melt behaviour, poor dispersion or inconsistent surface properties, and any strength improvement becomes commercially useful only if it can be repeated across production volumes.
The Graphene Engineering Innovation Centre was established to address that scale-up stage by giving companies access to formulation, characterisation, pilot processing and application development around graphene and other two-dimensional materials. The Duo project has taken that work into a high-volume commodity polymer application rather than a specialised aerospace or electronics component, where relatively small changes in material consumption can become substantial once multiplied across millions of packages.
Duo estimates that QVC’s change can avoid around 50 tonnes of virgin plastic each year. The project also puts the potential annual reduction in Extended Producer Responsibility cost at approximately £21,150 under the assumptions used for the packaging change, reflecting the effect that reducing plastic tonnage can have on charges associated with the amount of packaging a producer places on the market.
The material reduction comes from two separate changes rather than gauge alone. Moving from 30 to 28 microns lowers the amount of polyethylene required for each bag, while increasing recycled content from 45% to 60% replaces a larger proportion of the remaining virgin polymer. The lower sealing temperature adds a process change at the packing line, although the energy saving will depend on machine design, throughput and the amount of time sealing equipment spends at operating temperature.
Duo already manufactures polyethylene packaging at its Manchester operation and has developed recycled and bio-based films before the 2DPE programme. The company was founded in 1988 and now combines UK manufacturing with packaging development, recycling and international distribution, providing an existing production route through which the graphene formulation can be moved into additional customer specifications.
Adoption beyond QVC will require the material to tolerate a wider range of operating conditions because automated packaging lines differ in sealing jaws, temperature control, film tension, print requirements and product geometry. A film used for lightweight clothing can also face a different puncture and load profile from packaging carrying dense or irregular goods, preventing one gauge and recycled-content specification from becoming a universal replacement.
UK e-commerce provides enough volume for incremental material reductions to accumulate quickly. Duo cites an estimate of approximately 941 million plastic mailing bags used annually for deliveries to UK shoppers, equivalent to around 2.6 million a day, although the amount of polymer saved by 2DPE will depend on the proportion of those applications whose mechanical and processing requirements suit the new formulation.
The QVC deployment gives Duo an industrial reference against which those further applications can be assessed. Production consistency, graphene dispersion, recycled-resin variability, film conversion and packing-line performance will determine whether the strength gains measured during development can be reproduced across other gauges and customer volumes without increasing scrap or slowing equipment.
Commercialisation therefore moves the programme into a different phase from material development. The formulation has already progressed through testing and into a working fulfilment operation; the next constraint is repeatability, with additional customers requiring 2DPE to deliver the same balance of recycled content, material reduction and process performance on production equipment that was not used during the original QVC trials.
