This describes the amount of film overhang on a sealed pack.
For presentation purposes some food manufacturers prefer to
trim all of the excess film from the sealed pack to leave no
overhang. However, there are some factors to take into account
when considering this option as the presence of some or all
of these will have an impact on the consistency of seal, cut
and accuracy of the film/tray alignment:
contamination on the tray flange (e.g.
food or oil)
proud product (the product in the tray
protrudes above the level of the tray flange)
even slight wear of the heat sealing
tool will cause problems with this method
Peel Tab
This term describes the shape of the film which is trimmed
from the pack after sealing. Some packs are designed to be
peeled by the consumer and are therefore sealed and cut with
a "peel tab" to make them easier to open. This can be any
shape or size and can be positioned anywhere on the perimeter
of the tray depending on the customer’s requirements.
Modified Atmosphere
Packaging
PA offer two alternative methods of modifiying the atmosphere
in the sealed pack – gas flushing (we call machines offering
this method MAP-F) or vacuum flushing (MAP-V). If you’d
like to read about the science behind MAP click
here. The gas flushing method can be used where the residual
oxygen levels required are greater than 1%. If the required
residual oxygen levels are less than 1% these can only be guaranteed
with the vacuum flushing method.
Foil Crimping
PA manufacture tooling to fit on the heat sealing equipment
range for crimping board lids onto foil trays.
Overcapping
PA can offer overcapping as an option as well as heat sealing
on its range of equipment.
Overprinting
PA work with a number of companies offering thermal printers
for date coding etc. Details of these companies can be found
by clicking
here. These printers can either be fitted to our machines
before they leave our factory or on site.
Ancillary Equipment
We work with a wide range of companies offering specialist packaging
or processing equipment. Details of these companies can be found
by clicking
here.
