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Heat seal - Bags can be sealed by the application of heat to melt two layers of the plastic bag together.
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Lip - An extended length of one side of the bag that can be folded to close the bag.
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Flip - One edge extended and folded that can be flipped over to close the opening. A good example is a "flip-over" sandwich bag.
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Zip - A groove can be molded into one edge and a track molded into the facing edge. The bag is closed when the track and groove are pressed together. Also known as Seal-Top Bags.
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Slide Seal Bags - Slide Seal Bags possess a sliding closure guide on the opening of the bag. When this slider is squeezed between the forefinger and thumb and drawn across the opening of the bag the closure tracks come together, thereby sealing the bag. These bags are used when multiple entry and exit of its content is constantly required. They are perfect for items that need to be kept fresh or repackaged and are easy to use with gloved hands.
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Twist Tie - The bag can be gathered and twisted just below the opening. A tie or strip can be wrapped around the neck of the bag to close the bag.
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Drawstring - A cord or string can be embedded around the open edge of the bag and pulled tight to close the bag.
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