A selected sample of LDPE Laminated foil cut the sample 10 x 10 cm2 or 5 x 5 cm2 area (as applicable) with the help of a GSM Plate. At different-different samples the position. If the sample is printed remove the printing ink ethyl acetate Carefully remove it. Take the total Grammage of sample weight at the analytical balance.
Total Grammage = weight x 100 or 400 (if the sample cut 10 x 10 cm2 or 5 x 5 cm2 area )
Dip the sample in a beaker containing toluene (sample completely dipped in toluene regent) for 2 min boil it.
The LDPE layer dissolved and the aluminium layer dried at room temperature for 5 min
After drying the aluminium layer then take weigh it.
Grammage of aluminium = weight x 100 or 400 (if the sample cut 10 x 10 cm2 or 5 x 5 cm2 area )
Grammge of LDPE Layer = Total Grammage – Grammage of aluminium
[…] of PVC: This test is performed by FTIR instrument, cutting a sufficient sample of PVC/PVDC foil and taking the PVC side of the sample. Its standard is PVC match with the same wave number. We […]
[…] of PVC: This test is performed by FTIR instrument, cutting a sufficient sample of PVC/PVDC foil and taking the PVC side of the sample. Its standard is PVC match with the same wave number. We […]
[…] sample of Paper/Alum/LDPE Foil from the taken LDPE side layer. The identification was tested with the help of the FTIR instrument. […]