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2. Vacuum packing - Wikipedia

   en.wikipedia.org/wiki/Vacuum_packing

   External vacuum sealers involve a bag being attached to the vacuum-sealing machine externally. The machine will remove the air and seal the bag, which is all done outside the machine. A heat sealer is often used to seal the pack. Typically these units use a dry piston vacuum pump which is often considered a "maintenance-free" pump.

3. Resealable packaging - Wikipedia

   en.wikipedia.org/wiki/Resealable_packaging

   Close-up of top seal, opening notch, and internal reclosable strip. Resealable packaging is any type of packaging that allows the consumer or user to reseal or reclose the packaging. Often packaging needs to be resealed in order to maintain product freshness or prevent spillage. Reusable packaging allows for multiple uses which can help reduce ...

4. Vertical form fill sealing machine - Wikipedia

   en.wikipedia.org/wiki/Vertical_form_fill_sealing...

   The typical machine is loaded with a continuous flat roll of plastic film, which has usually had labeling and artwork applied. Plastic is the most commonly used packaging material in the food industry, but the technology can be used to form continuous metallized foil/film, paper, and fabric product containers by changing the edge sealing/seaming methods.

5. Zipper storage bag - Wikipedia

   en.wikipedia.org/wiki/Zipper_storage_bag

   A Ziploc-branded storage bag Close-up from a cross section of the sealing mechanism. A zipper storage bag, slider storage bag, zipper bag, ziplock bag, zip-lock bag, ziploc bag, or zippie is an inexpensive flexible rectangular storage bag, usually transparent, made of polyethylene [1] [2] or similar plastic, that can be sealed and opened many times, either by a slider, which works in a similar ...

6. Vacuum tube battery - Wikipedia

   en.wikipedia.org/wiki/Vacuum_tube_battery

   The "B" battery is used to provide the plate voltage. It is sometimes colloquially referred to as a "dry battery" (although there is no reason why a "wet" battery of suitable voltage could not be utilised for the purpose). The filament is primarily a heat source and therefore the "A" battery supplies significant current and rapidly discharges ...

7. Currency packaging - Wikipedia

   en.wikipedia.org/wiki/Currency_packaging

   A cliche print [clarification needed] containing bank and branch details is applied to the plastic package seal. Vacuum packing is the most reliable and effective way of storing currency, which is protected against tarnishing, e.g. from moisture and dirt. Vacuum-packed banknotes also take up less space in containers used for transportation.