5.3.3 Loading shaft with film rolls
The film roll is put on the shaft depending on the type of film and the use in the upper or
lower section of the machine.
From European and Asian producers of film with release liner in general the film is rolled
up with the liner (and adhesive) to the outside, whereas the American films have the liner
and adhesive on the inside.
Film without release liner has its adhesive layer to the inside of the roll.
• In the upper section, the (adhesive) side in contact with the image must be on the top
when unwinding the film to the front of the machine.
• In the lower section, the (adhesive) side in contact with the image must be on the
bottom when unwinding the film to the front of the machine.
1. Put the film roll on a flat surface with enough space on one side to insert the shaft.
2. Take the auto-grip shaft from the unwind position of the machine.
3. Insert the shaft into the core cylinder of the film roll, holding the auto-grip shaft as in
Figure 17.
Figure 17: Auto-grip shaft position.
4. Place the shaft with the film roll in the correct way back into its suspensions (see
Figure 17).
Unwind direction of film towards the front of the machine:
in the upper section:
•
film with release liner on the outside unwinds from the top (1)
•
film with release liner on the inside unwinds from the bottom (2)
•
film without release liner unwinds from the bottom (2)
in the lower section:
•
film with release liner on the outside unwinds from the bottom (2)
•
film with release liner on the inside unwinds from the top (1)
•
film without release liner unwinds from the top (1)
5. Push both sides of the shaft firmly into their suspensions.
6. Turn the shaft until the gripper locks in.
7. Position the film(s) and the scrap core(s) in the middle and align them.
Note:
When both upper and lower section are used, align both films by pulling the top film
down at the rear side on to the bottom film.
8. Make sure the films (and scrap cores) are set up and aligned properly.
Operating
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