Shrink tunnel: Difference between revisions
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[[File:SSF Costco bakery pastry packaging line.JPG|200px|right|Heat tunnel for shrink wrapping bakery goods]] |
[[File:SSF Costco bakery pastry packaging line.JPG|200px|right|Heat tunnel for shrink wrapping bakery goods]] |
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A '''Shrink tunnel''' or '''Heat tunnel''' heated tunnel mounted over or around a [[conveyor system]]. Items such as [[packaging]], have [[shrink film]] loosely applied; with heat, the film shrinks to fit snugly around the wrapped object.<ref>{{cite book |
A '''Shrink tunnel''' or '''Heat tunnel''' is a heated tunnel mounted over or around a [[conveyor system]]. Items such as [[packaging]], have [[shrink film]] loosely applied; with heat, the film shrinks to fit snugly around the wrapped object.<ref>{{cite book |
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| title = Illustrated Glossary of Packaging Terms |
| title = Illustrated Glossary of Packaging Terms |
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| author = Soroka, W |
| author = Soroka, W |
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==Uses== |
==Uses== |
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* Shrink [[label]]s |
* Shrink [[label]]s |
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* Combining small items for sale and display (example: bottled water) |
* Combining small items for sale and display (example: bottled water) |
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* Form large [[unit load]]s for transport |
* Form large [[unit load]]s for transport |
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* Form primary barrier on foods such as cheese, meats and fish |
* Form primary barrier on foods such as cheese, meats and fish |
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==Types== |
==Types== |
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Revision as of 16:05, 18 February 2010
A Shrink tunnel or Heat tunnel is a heated tunnel mounted over or around a conveyor system. Items such as packaging, have shrink film loosely applied; with heat, the film shrinks to fit snugly around the wrapped object.[1]
Uses
- Shrink labels
- Combining small items for sale and display (example: bottled water)
- Tamper resistant or Tamper-evident bands or seals
- Form large unit loads for transport
- Form primary barrier on foods such as cheese, meats and fish
- Skin packs
Types
The heat source can be based on Heating element (electrical resistance), Infrared heater, steam, or gas flame. Often forced air is used to improve convection, sometimes focusing the heat on one component of the item.
Tunnels are available with or without a conveyor system. Some are built into a production line or are integral with machinery that also applies the shrink film. Others are movable by hand or by castors.
Some heat shrink tunnels have two or more zones for heating and controlled cooling.
See also
References
- ^ Soroka, W (2008). Illustrated Glossary of Packaging Terms. Institute of Packaging Professionals. p. 33. ISBN 1930268270.
- Brody, A. L., and Marsh, K, S., "Encyclopedia of Packaging Technology", John Wiley & Sons, 1997, ISBN 0-471-06397-5