4.
When laminating heavy posters or other thick items with 1.5 to 1.8 mil films, some
additional heat may be required to get a permanent bond. Never exceed 340 degrees.
5.
While offset printed materials may be laminated at the lower ends of the above ranges, inkjet
and other output from digital printers may require the upper end of the range in order to get a
good bond.
6. See 1-6 LAMINATING FILM for more information.
Cooling Fan:
The cooling fan on the Professor 27 is used during lamination with 3-mil, 5-mil, 7-mil, and 10-
mil film. The fan cools the plastic as it leaves the laminating rollers and before it enters the pull
rollers. As mentioned earlier, the fan prevents heat wrinkling and helps insure lamination that is
smooth and flat. The pull rollers on a Professor 27 turn a little faster than the laminating rollers,
insuring that the film is perfectly flat while it is being cooled.
However,
be sure to turn the
cooling fans off after each laminating run (group of items to be laminated) as the machine's
cooling capacity can be exceeded before its heating capacity.
NOTE:
It is possible that variances from recommended temperature settings may be necessary
due to material thickness, ambient temperature, humidity or the quality or thickness of the
material being laminated.
Please note the wide range of temperatures listed, especially for heavier films. This does not
mean any film that thick can be run anywhere within the given range. There are “standard” or
high-temperature and ‘low-melt” or low-temperature versions of all film thickness. Some low-
melt films work at lower temperatures than others do. It is important you buy your film from a
vendor who can tell you the following additional information about any film you choose:
•
the thickness
•
the clarity
•
suggested melt-temperature range
•
polyester/polyethylene content
•
how well the adhesive will stick to the kinds of images you’ll be protecting and
enhancing
Temperatures may exceed 310º when laminating poster board or other thick items with 1.5 mil
film on a continuous basis, but when the machine is stopped, turn the heat off if the setting is in
excess of 310º.
Never set the heat above 350º with film in the laminator. Temperatures
over 300º are not needed except with 1.5 mil film. Film that is 3 mil or thicker is generally
run at 280º or less.
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