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4.
Blisters on surface of substrate or along edge of substrate:
a.
Heat is set too high.
b.
Excessive moisture in the substrate being laminated.
c.
Inks are not fully dry.
d.
Rubber Rollers are not clean or are damaged.
5.
Curling of the finished lamination:
a.
Unbalanced tension on the supply mandrels; too much tension on the top supply mandrel will
cause the film to curl upward, or too much tension on the bottom supply mandrel will cause the
film to curl downward.
b.
Bottom roll of laminating film is threaded incorrectly.
6.
Wrinkling around edge of laminated substrate:
a.
Substrate to be laminated is too thick; try a laminating film with a thicker adhesive layer to
compensate for the added thickness or flush cut the substrate.
USI Corporate Headquarters
98 Fort Path Road
Madison, Connecticut 06443
(203) 245-8586 ● (800) 243-4565 ● Fax (203) 245-7337
www.usi-laminate.com
