Overview of the Cast Polyolefin Film Extrusion Technology for Multi-Layer Packaging Applications
[ 1 ] Wydział Inżynierii Mechanicznej, Politechnika Poznańska | [ 2 ] Instytut Technologii Materiałów, Wydział Inżynierii Mechanicznej, Politechnika Poznańska | [ SzD ] doctoral school student | [ P ] employee
2023
scientific article
english
- multilayer
- polypropylene
- polyethylene
- film
- extrusion casting
- packing
EN The review article presents the technology of producing polyolefin-based films by extrusion casting. Due to the wide use of this type of film as packaging for food and other goods, obtaining films with favorable properties is still a challenge for many groups of producers in the plastics market. The feedblock process and multimanifold process are the main methods of producing multi-layer film. In the case of food films, appropriate barrier properties are required, as well as durability and puncture resistance also at low temperatures. On the other hand, in order to properly pack and present products, an appropriate degree of transparency must be maintained. Therefore, processing aids such as anti-slip, anti-block and release agents are commonly used. Other popular modifiers, such as waxes, fatty acid amides and mineral fillers - silica, talc or calcium carbonate - and their use in film extrusion are discussed. The article also presents common production problems and their prevention.
26.01.2023
1071-1 - 1071-21
Article Number: 1071
CC BY (attribution alone)
open journal
final published version
at the time of publication
140
3,1