Package with freshness keeping agent sack

Abstract

A package of a food or a similar product which has to be preserved in fresh state. The package contains a sack charged with a freshness keeping agent for keeping the product fresh together with the product. The package comprises a carrier seat provided in the package and carrying the sack of freshness keeping agent fixed thereto, the seat having one end integrally heat-welded in one of the heat-sealed portions of the package and the other end integrally heat-welded in the other of the heat-sealed portions of the package. The carrier sheet is prepared by a process which has the steps of preparing a train of sacks in which a plurality of sacks, each containing the freshness keeping agent, are connected in series at least unidirectionally, feeding the train of sacks in one direction, feeding a continuous carrier sheet such that the carrier heat and the leading sack on the train of sacks are positioned one on the other, and attaching the leading sack on the train of sacks to the carrier sheet and severing, before or after the attaching, the leading sack from the remainder portion of the trains of sacks. Disclosed also is an apparatus suitable for producing this carrier sheet.