The latest innovation in vented polythene packaging for cement from bpi indupac is helping cement manufacturers to pack at higher speeds while offering the improved handling and branding benefits of polythene bags.
Ventiscak is the culmination of significant R&D work, including a rigorously tested, robust venting system. At the same time bpi indupac has been working with cement manufacturers to enable them to reach full optimisation speeds for their bagging equipment. This has resulted in the line speed gap between polythene and paper sacks converging rapidly – where a standard vented polythene line would previously have achieved output of 500 sacks, this can now be optimised to well over 2000, much closer to the line speeds of traditional paper sacks.
Ventiscak vented polythene sacks create a protective waterproof barrier that keeps water out while enabling cement to breathe. Any trapped air is vented out during the packing and palletisation process to ensure pallet stability, and enhanced tear and puncture resistance significantly improves the shelf-life of the packed cement. In addition, as a non-porous material, vented polythene prevents messy seepage for a cleaner handling experience than paper sacks that is more retailer- and end-user friendly.
Equally important, the availability of high impact decoration for polythene bags has helped to create a premium image and transform the shelf appeal of what was previously considered a commoditised product. The ability to print in up to eight colours with 360° coverage of the entire film tube means that polythene provides an enhanced marketing vehicle to further support the improved user-experience – and as a result, cement packaged in polythene is typically able to be positioned several price points higher than traditional paper sacks, even where they are sold side by side.
Polythene bags also have a strong sustainability profile, with an independent study confirming that plastic cement packaging is more environmentally-friendly than paper packaging during the full term of its use. This takes into account the amount of cement wasted throughout the supply chain in paper bags and the fact that plastic bags typically use 40% less energy in production and generate 80% less solid waste than paper. It also takes significantly less energy to recycle plastic than paper.
bpi indupac has invested in a new polythene extrusion line together with a dedicated printing and conversion line to cope with increasing demand for its polythene sacks. A specialist in-house team is also available to help customers transition from paper to plastic and avoid any reduction in manufacturing and production efficiencies.
“Vented polythene packaging for cement, such as Ventisack, has helped to reinvent a traditional product that may otherwise have struggled to challenge ingrained long-standing brand sentiment,” comments David Khanna, bpi indupac’s Commercial Director.
“The potential for increased filling speeds to complement their many functional and brand-enhancing advantages mean polythene sacks look set to become the packaging of choice for the cement market.”
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