Multilayer Compound Casing
1. Structural characteristics of
Function of co-extrusion film is a multi-layer co-extrusion technology will be through a variety of different performance of composite film base material together. It is a one-off forming process, to a combination of base material performance, meet the functional requirements of flexible packaging. Function of co-extrusion film common structure are: PE/TIE/PA/TIE/PE (PA), barrier property and strength of medium; PE/TIE/EVOH/TIE/PE, high barrier property, strength of medium; PA/EVOH/PA/TIE/EVA, high barrier property, high strength. Multilayer Compound Casing
2. Prominent advantages
From a performance point of view, functional co-extrusion film mainly include: the advantages of high oxygen resistance, moisture resistance, good sweet; Strong mechanical properties, high resistance to drop, puncture resistance, tear resistance; High temperature (121 C), resistant to low temperature (121 C), high temperature (121 C), high temperature (121 C), high temperature (121 C), high temperature (121 C), high temperature (121 C), high temperature (121 C), high temperature resistant, high temperature resistant (- 40 C), oil resistance; Avirulent insipidity, accord with the food and drug packaging hygiene standards; Good flexibility, good transparency.
From the point of view of process technology and cost, the advantages of functional co-extrusion film mainly includes: not limited by product specifications, can effectively meet the needs of the different packaging requirement; Layer, the more the more flexible structure design, the lower the cost, such as the required properties of the resin material to reduce to small thickness, thickness of single layer to thin can be anywhere from 2 to 3 microns, it can greatly improve the reduction in the number of expensive resin; Just need to blow molding technology, can effectively reduce the production cost.