A web of bags for use in an automatic bagging machine is formed from a
single layer of plastic film or a flattened tubular plastic film. When
formed from the tubular material, the bags are doubled walled. The bags
have lateral slits therein to accomodate opening of the bags in an
automatic bagger. The bags are further configured to be received upon a
track having an expandable portion that laterally displaces the bags in
the web, causing them to open beneath a filling head for receipt of
articles. A latter portion of the track allows the bags to resume their
normally closed posture, where they are sealed and separated from each
other.
