Materials for forming composite packages and method of producing such packages

A reclosable package of composite material comprising in combination a top section (12) of paperboard and a bag (11) of heat shrinkable film material extending from said top section and adapted to accommodate a product, said top section comprising a tubular structure formed from angularly related walls and having a top closure and being open at the lower end thereof, said bag being of a length substantially greater than that of said top section from said lower end to said top closure so as to provide a major portion of said package, said top closure being formed from panels (15, 15, 16) hinged to the top edges of said walls and arranged to provide a reclosable opening, said bag being attached to the lower portion of said top section whereby the mouth of the bag overlaps adjacent outside portions of said walls so that the bag is held open by the top section which thereby provides access to said bag for filling or for removal of the content, said top section being provided with notches (19) at the junction between said walls and overlapping portions of said bag being locally deformed by heat shrinking to cooperate in tension with said notches so as to hold the bag and the top section connected together.