Food Packaging



The irradiation of plastic packaging materials has a variety of business applications. A common application is to the packaging materials for food prior to being filled.

Sterilization and sanitation by e-beaming is simple and reliable method. The continuos method with short exposure time does not require the product to be in quarantine after treatment. Due to the dosimetric system used, conventional post-sterilization testing is not required. It is possible for us to release product based on dosimetric results.

The material must be compatible with the e-beaming process. The table below indicates the tolerance levels and grades the stability of commonly used polymers.


RADIATION EFFECTS ON PLASTICS

ref table from ISO standars


POLYMER RADIATION STABILITY TOLERANTE LEVEL (Mrads)
ABS good 100
ACETALS poor 1-2
ACRYLICS
PMMA weak 5
OTHERS weak 10
AMIDES
Aliphatics weak 50-100
Aromatics excellent 1000
Cellulosics weak 20
FLUOROPOLYMERS
PTFE poor 1
PCTFE weak 10-20
FEP weak 20
PVF, PVDF, ETFE, ECTFE good 100
Polycarbonate good 100
Polyesters (PET, PBT) good 100
POLYOLEFINS
Polyethylene good 100
Polypropylene weak 10
Polimetilpenteno good 30-50
Polystyrene excellent 1000
Polysulfone excellent 1000
POLYVINYL
PVC good 50-100
PPS weak 5000
Styrene/Acrylonitrile very good 100
Silicones good 20-100
Epoxies excellent 100-10000
Polyurethane excellent 1000

APPLICATIONS/PACKAGING
BAG IN BOX
FRUIT
TOMATOES
EGGS
WINE
FOOD TRAYS
PACKAGING FOR HUMAN CONSUMPTION
LACTICS
JUICES
ICE CREAMS