Pre-Coating Panels; Over-Lamination; Single-Sided Lamination - SEAL 62S Manuel D'utilisation

5.5.2

Pre-coating panels

This process is used to coat boards (substrates) with a pressure sensitive mounting film
onto which images can be mounted. This process can also be used to create a carrier
board. In this case a film with a non-stick surface is used.
Note:
The mounting film is usually provided with one release liner.
Place the film in the upper section and web it as if it has no release liner (over the
splitter bar).
1. Place the roll of mounting film on the shaft of the upper unwind position.
2. Set the nip to correspond to the thickness of the panels to be processed.
3. Web the film using a leader panel of the same material, thickness and width.
4. Set the pressure while feeding the leader panel.
5. Before the end of the leader panel enters the nip, butt up the panel to be pre-coated.
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When more panels have to be pre-coated feed them in continuously without gap.
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At the end, use a leader panel again to finish. This prevents the adhesive from
touching the bottom roller.
6. End with a leader panel and feed this board until the previous panel is out of the nip.
CAUTION:
Do not cut film close to or on the rollers. This will damage the silicone
coating of the rollers and will void the warranty.
7. Cut this panel free using a blade cutter.
8. Back-up the leader panel using the reverse.
9. Cut the film using a blade cutter.
After removing the release liner from the pressure sensitive mounting film, the board has
an adhesive coating ready to mount an image. See section 5.5.1 for mounting images.
5.5.3

Over-lamination

After an image is mounted to a panel, a protective laminate can be applied.
This process is the same as pre-coating a board (section 5.5.2).
The over-laminate can be a heat sensitive laminate or a pressure sensitive adhesive with
or without release liner.
5.5.4

Single-sided lamination

Images can be laminated single-sided with or without using carrier (or release) boards.
This laminate can be a heat sensitive laminate or a pressure sensitive adhesive with or
without release liner.
Disadvantage of the single sided lamination process is the adhesive residue that can stay
behind on the rollers where there is no image.
To avoid this, carrier boards or release liner can be used. Or the image must be wider than
the laminate and pieces of scrap material must be used to begin and end with.
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