Atlantic Poly Blog
- Grab the Atlantic Poly RSS Feed!
Advantages of CAST Stretch Film
19 Apr 2010
Why is some stretch film called CAST and some BLOWN? Is this plastic or gum?
Originally, all stretch wrap was blown, a process much like blowing bubble gum. Resin is heated and passed over an opening through which air is blown. Most state-of-the-art film today is cast. It is extruded through rollers and "laid out" in sheets. This process allows the film to be made in multiple layers. The layers allow the film to be made with cling on only one side. This optional one-sided-cling film is great where you don't want one pallet to stick to the one next to it. Also, these films layers can make the film stronger by adding tough layers to the inside. Cast film is also clearer and quieter coming off the roll.
Originally, all stretch wrap was blown, a process much like blowing bubble gum. Resin is heated and passed over an opening through which air is blown. Most state-of-the-art film today is cast. It is extruded through rollers and "laid out" in sheets. This process allows the film to be made in multiple layers. The layers allow the film to be made with cling on only one side. This optional one-sided-cling film is great where you don't want one pallet to stick to the one next to it. Also, these films layers can make the film stronger by adding tough layers to the inside. Cast film is also clearer and quieter coming off the roll.
Recent Posts
- Quick Zip Poly Bags for Safe Packaging in the Food Industry
- Polyethylene Bubble Wrap For Extra Protection of Fragile Items
- Co-Extruded Mailing Pouches for Secure Mailing
- Polyethylene Pressure Stickers For High Quality Product Labels
- Sustainable and High Strength Drum Liners For an Extra Level of Safety
- Made-to-Order Vinyl Holders for Commercial and Industrial Applications
- Customized Poly Tapes Are Excellent Labels and Safety Indicators for Various Items
- Poly Tubing Impulse Sealers for Time Saving and Energy-Efficient Industrial Packaging
- Corrugated Boxes Are Essential To Courier Business
- Quick Zip Poly Bags are Essential In Food Businesses