14
USI • YOUR SOURCE FOR LAMINATION
LOADING & OPERATING PRESSURE
SENSITIVE FILM
The MRL42" Roll Laminator/Mounter is equipped with the features
necessary to allow the use of pressure sensitive (cold) film with
release liners for single side lamination. The Waste Rewind will remove
the release liner from the film and wind it onto an empty core, which
can then be disposed.
Turn the heat controls to off and allow machine to cool if necessary
when using cold films.
The pressure sensitive film must be mount-
ed on the upper supply mandrel (3" core
adapters are provided if necessary) and
threaded under the idler roller. An empty
film core should be mounted on the waste
rewind mandrel, and the mandrel mounted
onto the laminator.
A section of scrap substrate that is as least
as wide as the film in use should be started
into the front rollers of the laminator.
Separate the release liner from the film for
a length of about six inches, and adhere
the exposed portion of the film to the sub-
strate that has been started into the
machine. Bring the end of the release liner
under and up to the Waste Rewind man-
drel, and tape the release liner to the spare
core that has been installed over the man-
drel. The Waste Rewind mandrel may be
rotated by hand to assist in the start up.
Slowly advance the motor of the laminator,
guiding the film and substrate to the rear
rollers, while insuring the release liner is
firmly attached to the Waste Rewind core.
The separation point for the film and
release liner should be between the idler
shaft and the point where the film contacts
the heat shoe. The separation point can be
adjusted by the tension knob on the Waste
Rewind Drive Shaft. If the separation point
is past the point where the film contacts the heat shoe, tighten the
tension knob slowly until the separation point approaches the idler
roller. If the separation point is too close to the idler roller, then loosen
the tension knob slowly until the separation moves toward the heat
shoe. The tension setting should need very little adjustment once set,
but should be monitored during operation.
Apply a small amount of tension to the upper supply roll if necessary to
clear any wrinkles occurring on the heat shoe. Once the separation
point is set, lamination is performed normally. Care should be taken to
minimize the gap between successive pieces of substrate being
laminated so that the adhesive from the film is in contact with the lower
roller as little as possible. Cold films utilizing aggressive adhesives will
stick to the laminator’s rollers and potentially wrap around. It is also
recommended to use supply film widths equal to or narrower than the
width of the substrate being laminated.
Note: To encapsulate, run image a second time upside down.
Waste Rewind
Mandrel/Core
Upper Supply Roll
Upper
Idler Roller
Release liner
Separation
Point
Film
Substrate
Front Rollers
Rear Rollers
Heat Shoes
