SEAL SM110EN, 44Ultra Laminator service manual Adjustment using Heat Sensitive Film

5-1-2 Adjustment using Heat Sensitive Film

This procedure refers to the pressure adjustment to be done at the customer’s site.

Note: as this procedure is performed using heat sensitive film (JetGuard 5 mil or Thermashield 5 mil), the top roller temperature should be set to 120°C (250ºF).

1.Remove any film from the machine.

2.Remove the Image Guide.

3.Cut several sheets of film from the supplyroll. The offcut size should be 43’’ by 8’’ (so it’s easy if 43’’ film is used).

4.Set the nip to its maximum position (10mm or 3/8’’).

5.Place two sheets, with their adhesive sides facing each other, between the rollers, as shown in figure 27.

6.Close the nip, and wait 30 seconds.

7.Open the nip to its maximum position, and remove the sheets. Now, they’re stuck together. Mark the sheets (using a felt tip pen) how its position was, relative to the machine.

43’’

fig. 27

A small part of the sheets is shown in figure 28. The footprint (the area where the rollers touch each other) is very clearly visible, and it has roughly a width of 10mm (3/8’’). At either side of the footprint, the films are molten together partially (2) and various air-entrapments

(3)are visible. The rest of the two sheets is still opaque (1).

1

2

roughly	Footprint
10mm (3/8’’)

3

fig. 28

•If the roll pressure is correct, then the footprint looks like:

The difference in width measured in the middle of the footprint, and 25mm (1’’) from either side, must not be larger than 0.5mm (0.02’’).

If this is the case, the pressure adjustment is correct, and the side covers can be assembled.

27