Ldpe laminating with pa foil made from the thin layer of LDPE laminated with pa (polyamide). Both layers are made of translucent foil which foil used as vacuum foil. It foil used a pharmaceutical-finished bulk packaging requirement for an anaerobic environment, hygiene, and sterility. Suitable for freezing and sterilization
1.Description:
The thin polyamide layer is laminating with an LDPE (Low-density polyethylene) layer. One unprinted and the other side printed or unprinted.
2. Text matter:
If the LDPE Laminating with PA foil is printed, the foil will be printed, and the shade card and artwork will match the sample of text matter.
3. Color scheme:
The foil is printed in a text-matter color that matches the shade card or Pantone card.
4. Inner core diameter:
The foil is in the form of a roll, and the roll’s inner core diameter measures the roll with the help of a measuring scale. Take reading and it notes down.
5. Identification by FTIR
Take a sample of LDPE Laminating with PA Foil, its drug contact layer is ldpe. The LDPE makes a sample molecular comparison with a reference standard of LDPE. It is identified by the FTIR Instrument. When first scanning the reference standard, then after scanning the sample foil. The sample and reference standard are the same wavelength at 3800-650-1. Reference standards match the same wavelength with the sample foil wavelength.
The corrected spectrum exhibits major absorption bands only at the same wavelength as the LDPE (Low-density polyethylene) reference standard spectrum
6. Grammage:
- Total Grammage:
Take the sample of LDPE laminating with PA foil (polyamide) for Grammage testing of the foil. A selected sample of foil cut the sample 10 x 10 cm or 5 x 5 cm with the help of a GSM plate. Take the weight at analytical balance, then the calculation Grammage by the given formula,
Total Grammage = weight in grams x 100 or 400 (if the sample is 10 x 10 cm or 5 x 5 cm)
- For PA Layer:
Take the sample of total Grammage sample completely and dip it in a glass beaker containing acetone. The glass beaker slightly boils after some time LDPE layer dissolves and the remaining sample is PA (Polyamide). The polyamide layer dries the sample in a hot air oven at 700c for 2 min. The cool sample takes the weight at the analytical balance.
PA Layer Grammage = weight x 100 or 400 (if the sample is 10 x 10 cm or 5 x 5 cm)
LDPE layer Grammage = Total Grammage- PA Layer Grammage
7. Thickness:
Total Grammage:
Take a selected sample of LDPE Laminating with PA foil testing of total thickness with the help of a digital micrometer. Take reading and notes down.
8. Pinhole
In the sample of LDPE Laminating with PA foil, the foil has no hole, and when the foil has any type has a hole. The testing of foil with the help of an instrument illumagnifier tester. When the bench of the instrument of the background light sample has a hole then the light passes within the hole. It is easy to identify the pinhole of the foil. It testing helps identify the pinhole in the sample.
I am Maneesh Maurya a professional pharmaceutical blogger from India having rich experience in the pharmaceutical Quality control field.
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