Abstract: A packaging apparatus for packaging articles in a double film enables to seal and package the articles by a double film without stopping operation of the belt conveyor. The packaging apparatus comprises a base, a movable table reciprocatory moving in the longitudinal direction thereof, a feeding unit mounted on the movable table for feeding the double film, a feeding belt conveyor provided over the movable table for feeding the article to the double film, a sealing unit mounted on the movable table for sealing the article, and a discharging belt conveyor provided over the movable table for feeding the article to the sealing unit and discharging the packaged articles from the discharging belt conveyor.

Abstract: A combination, or distributor package including upper and lower groups or sub- packages of containers each created by a unitary multi-packaging device, a thin, flexible sheet separating the upper group from the lower group and a tightly, tensioned, envelop around the top, bottom and sides of the groups created by a spirally applied stretch film.

Abstract: A method of heat activating the interior surfaces of the top closure, fin forming panels of a paperboard carton of the type shown in U.S. Pat. No. 4,732,275 to thereby render their PE coating tacky prior to folding the panels to form the carton top closure. The geometry of the two fin forming panels is such that their interior surfaces require a U-shaped heating pattern, as opposed to heating their entire areas. This U pattern is achieved by a specific hot air jet arrangement on an otherwise conventional nozzle block and by moving the nozzle towards and away from the carton as the carton moves past the nozzle block. The method also includes heating by a second nozzle block, to increase the rate of production of closed cartons. The fin forming panels of the cartons may also be preheated.