Webbing; Upper Section Only - SEAL 80 Pro Manuel D'utilisation

5.4

Webbing

For most processes the machine must be webbed before images on thin film or on panels
can be processed. The machine can be webbed for single sided or double sided
processing. Single sided is generally used for processing boards.
Note:
In single sided processes adhesive residues will stay behind
on the bottom roller where the film is wider than the images.
To prevent this, a release liner of the same width as the top
film can be used in the bottom section. The release liner can
easily be removed later on.
When webbing a film with a release liner, the film is always fed over a splitter bar (or idler),
where the release liner is separated from the film.
To increase contact surface with the heated main roller, heat sensitive film also runs via
this idler (splitter bar).
In this section an unwind (or wind-up) roll can also be an unwind/wind-up shaft position set
as unwind (or wind-up).
To feed in the films a leader panel is needed of the same thickness as the panels to
process. For processing thin images a leader panel is provided. When this panel is
through, the nip is set to zero and the images can be fed.
When using panels, the image guide must be stowed away.

5.4.1 Upper section only

Figure 19: Webbing upper section.
1. Stow away the image guide.
2. Unwind the film from the upper or top unwind roll.
•
Feed a pressure sensitive film without release liner from the top unwind roll over
the splitter bar (A),
•
Feed all other films underneath the splitter bar (B).
Operating
Figure 18: Trailing release liner
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