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3.7.4 Tolerance of print marks by using film brake
(Film is pulled into the machine by stretching the film to a greater or lesser degree)
3.7.4.1 Non-stretchable packaging material.
for instance paper, cardboard, PVC, aluminum foil, etc.
relative total deviation Δ U:
0 up to -0,15 %
(0 up to -1,5 mm on 1.000 mm)
Absolute individual deviation:
max. 1 mm
3.7.4.2 Moderate stretchable packaging material.
for instance polyester bi-axial stretched, polyamide mono and bi-axial stretched,
polypropylene bi-axial stretched, etc.
relative total deviation Δ U:
-0,1 up to -0,5 %
(-1 up to -5 mm on 1.000 mm)
Absolute individual deviation:
max. 1,5 mm
3.7.4.3 Good stretchable packaging material.
for instance PA/PE non stretching etc.
relative total deviation Δ U:
-0,2 up to -0,7 %
(-2 up to -7 mm on 1.000 mm)
Absolute individual deviation:
max. 2 mm
3.7.4.4 Highly stretchable packaging material.
for instance PP/PE combined non-stretched etc.
relative
total deviation Δ U:
-0,3 up to -0,9 %
(-3 up to -9 mm
on 1.000 mm)
Absolute individual deviation:
max. 2 mm
