usi 1800-2700, Руководство пользователя

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TROUBLE SHOOTING
COMMON EXAMPLES OF POOR LAMINATING . . . and their causes.
A. FILM NOT BONDING TO SUBJECT OR TO ITSELF AT SEALED EDGES
Causes:
1. The heat is set too low.
2. Film tension is too tight.
3. Bottom roll of film is threaded incorrectly.
4. The pressure setting is not correct.
B. WRINKLES OR IRREGULAR WAVES RUNNING ACROSS THE LAMINATED WEB
(PERPENDICULAR TO THE EDGE)
Causes:
1. The heat set is too high.
2. Not enough tension on the supply mandrels. (Large, irregular waves).
3. Too much tension on the supply mandrels. (Small, fine wrinkles - “orange peel” effect).
4. The rubber laminating rollers are not clean.
5. The pressure adjustment for the laminating and pull rollers is out of adjustment.
6. Speed is too fast.
C. STRETCH LINES RUNNING WITH WEB (PARALLEL TO THE EDGE)
Causes:
1. Too much tension on the supply mandrels.
2. The heat is set too high.
3. The heating shoes or rollers are not clean.
D. BLISTERS ON SURFACE OF SUBJECT OR ALONG EDGE OF SUBJECT
Causes:
1. The heat is set too high.
2. Excessive moisture in the paper being laminated. (If inks are not dry, this may also cause
blisters).
3. The rubber laminating rollers are not clean, or are damaged.
E. CURLING OF THE FINISHED LAMINATION
Causes:
1. Unbalanced tension on the supply rolls. Too much tension on the top supply roll will
cause the web to curl up. Too much tension on the bottom roll will cause a downward
curl in the web.
2. Bottom roll of film has been threaded incorrectly.
F. WRINKLING AROUND EDGE OF LAMINATED ITEM
Causes:
1. Item to be laminated is too thick.
Possible Solutions:
a. Loosen tension
b. Use film with thicker adhesive layer
c. Flush cut item