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WEBBING FILMS WITHOUT A RELEASE LINER
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The following are the basic webbing procedures for
webbing films without a release liner:
• Select films slightly wider than the image to allow for a
border without film waste. A border of 1/8" to 1/4"
(3-6mm) is adequate.
• Ensure the main roller’s temperatures are set according
to the recommendations of the laminates being used
(see literature enclosed in your material box).
WARNING! The rollers should be down and turning
while heating up to provide even heat distribution and
prevent roller flat spots from developing.
• Once the laminator reaches correct operating tempera-
ture, stop the laminator and raise the top roller.
• Load and center the films on top and bottom unwind
shafts with the dull adhesive side facing out and the
unwind brake tension released.
NOTE: Check if the film widths of the lower and
upper web are the same!
• TOP FILM: Pull the film down from the top unwind
shaft, behind the top center idler and place it evenly over
the face of the top roller.
• BOTTOM FILM: Pull the film up from the bottom
unwind shaft, behind the front bottom idler and place it
evenly over the top film draped over the face of the top
roller.
• The two films will then heat and stick together.
• Set the Shim Wheels to 1/16" (2mm) to allow for the
thickness of the leader-board.
• Use a leader-board to push the film(s) through the main
roller nip.
• Lower the top roller and pivot the in-feed table into
position.
• Moving to the rear of the laminator, use the foot switch
to advance the leader-board.
• Feed the leader-board over the first chill idler and under
the second chill idler.
NOTE: For top and bottom film combinations of
10 mil (250 microns) or less, feed over the first idler
and under the second. For film combinations of 10 mil
or over, feed over both chill idlers.
• Raise the top pull roller and advance the leader board
through the pull rollers.
• Holding the leader board up against the top edge of the
top pull roller lower the roller. Make sure the rear Shim
Wheels are set to 0" (0mm).
• Return to the front of the laminator and set the front
Shim Wheels to -1/16" (-2mm).
• Using the foot switch advance the films, applying light
unwind brake tension gradually on both unwind shafts
until there are no wrinkles in the film as it goes into
the nip.
You are now ready to feed images!
Figure 18. Webbing films w/o Release Liners
Top
Main
Top
Pull
Front Top
Supply Shaft
Rear Top
Supply Shaft
Bottom
Bottom
Pull
Shim Wheel
Print Guide
Front Table
Front
Chill
Idlers
Rear
Front
Bottom
Wind-up
Rear
Bottom
Wind-up
Rear
Bottom
Supply
Shaft
Front
Bottom
Supply
Shaft
Rear
Roll
Easel
Front
Roll
Easel
Rear Top
Wind-up
Front Top
Wind-up
Top
Idler
Rear Table
Fan
Tube
Bott
Idler
Roller
Roller
Roller
Bott
Idler
Main
Roller
Shim Wheel
Covered
Foot
Switch
Covered
Foot
Switch