Multilayered packaging
Multi-layered packaging are multilayer or composite materials using innovative technologies aimed to give barrier properties, strength and storage stability to food items, new materials as well as hazardous materials.[1]
Multiple layers are formed by
History of multilayered packaging dates back to the late 1950s when Procter & Gamble first designed multilayered collapsible tubes for toothpastes.
Types
Multiwall paper sacks
These are made of multiple layers of extensible kraft paper of differing grammages. These are gaining popularity in the cement industry, drug and fertilizer industry where the inner or outer layer of the sacks are made of polyethylene to protect the product from moisture.
Laminated-cartons and plastic bottles
These find use in paint industry, tetra packs containing milk, fruit juice, syrups and pharmaceutical industry.[6] The typical combinations are as follows:
Apart from these
Coextrusion
Coextrusion is the plastic extrusion of multiple layers of material simultaneously. Such products are popularly known as CO-EX.
References
- .
- ^ "Plastic curbs to spare multi-layered packaging". www.telegraphindia.com. Retrieved 2020-04-16.
- ^ "Multilayer packaging: innovative and sustainable". www.basf.com. Retrieved 2020-04-16.
- ^ Pinto, Viveat Susan (2019-10-02). "ITC launches first multilayered plastic collection, recycling drive in Pune". Business Standard India. Retrieved 2020-04-16.
- ISBN 978-1-4200-3181-2.
- ^ "Multilayer Films". polymerdatabase.com. Retrieved 2020-04-16.
- ^ "University of Pittsburgh". New Plastics Economy (en-GB). Retrieved 2020-04-16.