Table 1.
Multilayer flexible packaging film samples and their respective composition.
|
Sample code |
Layer 1 |
Layer 2 |
Layer 3 |
Layer 4 |
Layer 5 |
Layer 6 |
|---|---|---|---|---|---|---|
|
A |
corona PET (type A) |
polyvinyl chloride (PVC) inks |
SB−PU adhesive |
Al |
SB−PU adhesive |
cPP |
|
B |
corona PET (type B) |
PU inks |
SB−PU adhesive |
Al |
SB−PU adhesive |
cPP |
|
C |
corona PET (type B) |
nitrocellulose (NC) inks |
SF−PU adhesive |
white PE |
– |
– |
|
D |
corona PET (type A) |
polyvinyl butyral (PVB‐color) & PVC white inks |
SF−PU adhesive |
transparent PE |
– |
– |
|
E |
two‐component (2 K)‐matt lacquer |
chemPET |
NC & PU white inks |
SB−PU adhesive |
transparent PE |
– |