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  2. Heat sealer - Wikipedia

    en.wikipedia.org/wiki/Heat_sealer

    Small impulse sealer Heat-sealed material lies on a warehouse floor. Notice the corded heat sealer to the left. Heat sealer used to prepare plastic bag of lettuce for shelf life testing Continuous band heat sealer. A heat sealer is a machine used to seal products, packaging, and other thermoplastic materials using heat. This can be with uniform ...

  3. Plastic welding - Wikipedia

    en.wikipedia.org/wiki/Plastic_welding

    The direct contact method of heat sealing utilizes a constantly heated die or sealing bar to apply heat to a specific contact area or path to seal or weld the thermoplastics together. A variety of heat sealers is available to join thermoplastic materials such as plastic films: Hot bar sealer, Impulse sealer, etc.

  4. Induction sealing - Wikipedia

    en.wikipedia.org/wiki/Induction_sealing

    Induction sealing is the process of bonding thermoplastic materials by induction heating. This involves controlled heating an electrically conducting object (usually aluminum foil) by electromagnetic induction, through heat generated in the object by eddy currents. Induction sealing is used in many types of manufacturing.

  5. Vacuum packing - Wikipedia

    en.wikipedia.org/wiki/Vacuum_packing

    Sealed food alongside a home vacuum sealer and plastic rolls used for sealing. Vacuum packing is a method of packaging that removes air from the package prior to sealing. This method involves placing items in a plastic film package, removing air from inside and sealing the package. [1] Shrink film is sometimes used to have a tight fit to the ...

  6. Vertical form fill sealing machine - Wikipedia

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

    A vertical form fill sealing machine is a type of automated assembly-line product packaging system, commonly used in the packaging industry for food and many other products. Walter Zwoyer, the inventor of the technology, patented his idea for the VFFS machine in 1936 while working with the Henry Heide Candy Company . [ 1 ]

  7. Sealer - Wikipedia

    en.wikipedia.org/wiki/Sealer

    Sealer may refer either to a person or ship engaged in seal hunting, or to a sealant; associated terms include: Seal hunting. Sealer Hill, South Shetland Islands, ...

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