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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. Resealable packaging - Wikipedia

    en.wikipedia.org/wiki/Resealable_packaging

    The zip is bonded to the packaging by a heat activated adhesive that is pre-applied to the backing of the zip. The first resealable packaging with a zipper was licensed in the United States by Minigrip® in 1954. "Ziplock" is now used as a noun or adjective in relation to plastic bags using this type of seal regardless of manufacturer. [2]

  4. Evidence packaging - Wikipedia

    en.wikipedia.org/wiki/Evidence_packaging

    Heat sealable nylon plastic bags have also been shown to be effective. [5] [6] Contamination. Control is needed to prevent contamination of the evidence ...

  5. Thermal bag - Wikipedia

    en.wikipedia.org/wiki/Thermal_bag

    A thermal bag is a type of thermally insulated shipping container in the form of a bag which can be carried, usually made of thermally insulating materials and sometimes a refrigerant gel. It is used to help maintain the temperature of its contents, keeping cold items cold, and hot items hot.

  6. Cellophane - Wikipedia

    en.wikipedia.org/wiki/Cellophane

    Cellophane is the most popular material for manufacturing cigar packaging; its permeability to water vapor makes cellophane a good product for this application as cigars must be allowed to "breathe" while wrapped and in storage. Cellophane sales have dwindled since the 1960s, due to alternative packaging options.

  7. Ziploc - Wikipedia

    en.wikipedia.org/wiki/Ziploc

    Ziploc is an American brand of reusable, re-sealable sliding channel storage bags and containers originally developed and test marketed by Dow Chemical Company in 1968 and now produced by S. C. Johnson & Son.

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