1. Introduction: Aluminium
foil is a thin rolled sheet of pure or alloyed aluminium varying in
thickness.
Aluminium foil combined with other material
such as plastic film can be used to package a host of drugs products. Aluminium
foil can be printed embossed or etched. Foil for blister packing should be
tempered hard. Aluminium foil coated on inner side with heat sealable lacquer. Aluminium
foil are printed on matt finish side by gravure printing process. There are
supplied in roll foam with proper labeling. A certificate of analysis is
accompanied with each supply.
2. Test Parameters:
· Text matter: Compare text matter of sample with approved artwork.
Acceptance
criteria: Text matter should be as per approved artwork
· Colour: Check the colour of sample with approved shade card. The
sample colour should match with approved shade card.
Acceptance criteria: Shade should be as per approved shade card.
· Pinhole test: Place 1 meter piece of Aluminium foil in front of light
source & observe, there should not be any hole.
Acceptance criteria: Should be absent when checked with normal naked eye.
· Ink lifting
test: Check the width of aluminium foil and cut the
cello tape such as (measured width of aluminium foil + 5cm). Now stick cello
tape on the printed area of aluminum foil, after that isolate BOPP tape from
aluminum foil by forcefully. Observe in front of light source.
Acceptance criteria: Printed matter should not get remove with cello tape.
· Dimension:
Acceptance criteria:
Tolerance for width : ± 2 mm
Tolerance for thickness : ± 0.002 mm
Internal core diameter : 76 ± 1 mm
· Grammage:
Cut the sample in 5cm x 5cm piece, weigh it and calculate the
Grammage with following formula
Weight of 5 cm x 5 cm piece in gm
Grammage =
---------------------------------------------- x 10000
5 cm x 5 cm
Acceptance
criteria:
Grammage: Not less than 65 gsm
