RAW MATERIAL (PAPER) INSPECTION
Condition - to condition the paper to follow the standard atmosphere
Grammage - to determine the grammage of the paper according to specifications
Cobb Test - to determine the quantity of water that can be absorbed by a paper in a specified time.
Moisture content-oven dried method - to determine the moisture content of paper at the time of sampling.
Bursting Strength - to measure the bursting strength of the paper
Caliper - to determine the thickness of paper over specified area and under specific static load
Ring Crush Test - to measure the edgewise compression force required to crush a long strip cut of specimen for strength measurement.
Brightness and appearance - to describe the physical appearance of the paper
CORRUGATING (PLAIN BOARD)
Grammage of component papers after separation - to determine the grammage of individual papers from which corrugated board has been made.
Edge Crush Resistance Test – to determine the edgewise crush resistance of board.
Flat Crush Resistance Test – to determine the flat crush resistance of corrugated board used in the manufacture of packing cases.
Lamination – to obtain resisting strength against separation of liner and adhering the corrugated board.
Thickness - to determine the thickness of the boards under specified pressure.
Bursting Strength – to measure the bursting strength of the board produced.
Flute Analysis – to analyse the flute height of board produced.
FINISHED GOODS (PLAIN BOARD OR CARTON)
Moisture Content - to determine the moisture content of the board
Top Load – to measure the ability of cartons to resist external compressive force
General Inspection:
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Print text/detail
Wrong type/wrong text/text missing totally not allowed
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Registration
The registration should be within tolerance .(±2mm)
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Lamination
Good fibre tear
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Colour shade
Colour shade according customer requirement
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Slotting/die-cut
Sharp cutting edge
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Creasing
No crease line, shallow, creasing cut through are totally not allowed
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Carton forming
Cartons can be properly form
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Side joint
No overlapping, excess material or of alignment of side joint allowed
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Flute
Damaged, wrong direction, wrong type not allowed
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Scanability
The barcode when scan should be readable and with the correct customer code
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Rub resistant
Good scuffing
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Gluing/Stitching
Excess glue/ no glue or joint break not allowed
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Dimension
According to customer specification