Poly laminated foil Testing Procedure
- Description:
- Acceptance Criteria: ____________ coloured printed soft tempered, unannealed poly aluminium foil on _________ colour background
- 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 colour shade 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 sample and cut the cello tape such as (measured width of aluminium foil + 5 cm). 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.
- Width: Measure width with calibrated measuring scale.
- Acceptance criteria: _______ ± 2 mm
- Thickness : Measure Thickness with calibrated micrometer.
- Acceptance criteria: ________ ± 0.002 mm
- Grammage : Cut the sample in 5 cm x 5 cm piece or suitable measured scale, weigh it and calculate the Grammage with following formula,
Weight of 5 cm x 5 cm piece in gm
Grammage = ————————————————– x 10000
Total area of piece in cm2
- Acceptance criteria: Not less than 100 gsm
