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Troubleshooting
Silvering
A term used to describe one of two
occurrences; 1) air bubbles trapped between the
product and a thermal laminate, generally caused by
insufficient heat being applied to the laminator or 2) the
adhesive not fully activated in a pressure sensitive film,
which will disappear once the adhesive is fully activated.
This activation process can be sped up if a small
amount of heat is applied during the application.
Substrate
The material to which an adhesive is to be
bonded. In film, the substrate is the polyester and in
mounting, the substrate is the material being mounted to.
Tunneling
When a laminated image is rolled up for any
period of time and the laminate separates from the
image. Generally in a pattern that follows the direction
the laminated image was rolled up in. This is very
common with pressure sensitive laminates and finished
products that have been wound tightly.
Unwind
A system that unwinds media. Unwinds are
used on all laminators to dispense laminate for
lamination.
Web
The path that rolled media unwinding from a
supply roll takes through a machine or array of rollers.
Page 7 - 8
F - 160 Operation and Maintenance Manual
© GBC Pro - Tech August 1999
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