The outer base layer of paper bag with aluminum foil mainly plays the role of aesthetics, printing and moisture barrier such as BOPP, PET.
Bag Material | Barrier Performance | Description | ||
Air | Moisture | Light | ||
PET/VMPET/PE | High | High | High | General use Good Barrier |
OPP/VMPET/PE | High | High | High | Good Barrier, automatic packaging machine use |
BOPP/VMCPP | High | High | High | Good Barrier, automatic packaging machine use |
PET/AL/PE | Excellent | Excellent | Excellent | General use Best Barrier Quality |
PET/AL/PA/RCPP | Excellent | Excellent | Excellent | Retortable Spout pouches, Best Barrier Quality |
The outer base layer of paper bag with aluminum foil mainly plays the role of aesthetics, printing and moisture barrier such as BOPP, PET.
The barrier layer mainly plays the role of barrier and light protection such as VMPET, AL, PA.
Properties | Test Method | Unit of Measure | Typical Valve |
MVTR (Moisture Vapor Transmission Rate) | ASTM 1249 | gms/100 sq.in. /24 hrs | 0.03 |
OTR (Oxygen Transmission Rate) | ASTM D3985 | cc/100 sq. in /24 hrs | 0.06 |
Tensile MD | ASTM D-882 | break Lbs | 19 |
Tensile TD | ASTM D-882 | break Lbs | 22 |
Tear MD | ASTM 689 | break Lbs | 48 |
Tear TD | ASTM 689 | break Lbs | 48 |