5-9 PREVENTING AND SOLVING PROBLEMS
Please read this section before you have a problem.
PROBLEM:
Wrinkling of the material as it goes into the laminating rollers.
This problem usually occurs when laminating an item that has been folded,
rolled, bent or wrinkled.
SOLUTION:
Make sure the leading edge of the item being laminated is
laying flat and is inserted parallel to the laminating rollers.
It is sometimes essential to smooth out an item as it passes over the feed
table and through the rollers to ensure an even lamination without wrinkles.
Smooth from the center of the item back toward the trailing edges. Once the
item starts to feed you may also pull back and to the sides on the corners of
the trailing edge.
If material has been rolled up take the curl out of it on a table edge before
laminating. If some curl remains it may be helpful to insert the item with the
curl down so the leading edge is pressed against the feed tray until just
before the nip.
PROBLEM:
Wrinkling of the film around the material being laminated.
SOLUTION:
This is normal and inevitable on any laminator, especially with
thicker material. These wrinkles will be trimmed away with the scrap, so they
do not affect appearance. Because the rollers are being held apart by the
paper or cardboard they cannot pull equally on the plastic around the paper.
This creates wrinkles that tend to look like the bow waves of a boat, radiating
out through the clear part of the web from the sheet of material.
PROBLEM:
When two pieces of material are laminated side by side, the
plastic adheres to one piece but not the other.
SOLUTION:
To get maximum efficiency from the film rolls you can feed
several items into the laminator side by side. However, wrinkling can occur if
these items are of unequal thickness because the laminating rollers are lifted
off the thinner items by the thicker items. When laminating items side by side
it is important to arrange them so that the thickness is the same.
PROBLEM:
Wrinkling of the plastic on a laminated piece of material.
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