Method and apparatus for inserting a core packaging layer into a clean environment
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United States of America Patent
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May 9, 1995
Grant Date -
N/A
app pub date -
Mar 14, 1994
filing date -
Mar 14, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A product required to be kept in a clean environment is packaged by removing outer layers of a multi-layer film and immediately thereafter introducing its inner core sheet inside a clean room. A bag with an opening is produced inside the clean room by superposing and sealing together two of such core sheets, by splitting one core sheet into two sub-layers and superposing and sealing together these two sub-layers or by folding one core sheet and superposing and sealing together its folded parts. The product may be packaged in such a bag either by using the same apparatus which makes the bag or by using another apparatus. The bag is made of a multi-layered material, and its outer layer is peeled off immediately before it is put inside a clean room to be torn apart and to have the produce taken out. Hollow wedges having air holes may be used to peel off outer layers from the core sheet while causing air to be emitted outward through these holes in order to prevent the core sheet from splitting while preventing both the outer layers and the core sheet from rubbing against the wedge surfaces. Such a hollow wedge may also be used for splitting a core sheet into two sub-layers.
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