Bio-orientation without heat setting: shrink films
Plastic packaging - Transformation processes
Article REF: AM3576 V1
Bio-orientation without heat setting: shrink films
Plastic packaging - Transformation processes

Author : Pierre CHOMON

Publication date: July 10, 2008 | Lire en français

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2. Bio-orientation without heat setting: shrink films

A limited number of processors worldwide possess this technology, and multiple patents cover the processes, especially when there is an improvement in the O 2 barrier and the simultaneous use of irradiation (β or γ).

Note: Irradiation enhances thermal stability and puncture resistance by creating three-dimensional bonds.

2.1 With O2 barrier: presence of PVDC, EVOH, and/or PA

Double bubble technology is used (see figure 3 ); when irradiation occurs, the process...

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