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Application filed by Stone Container CorpfiledCriticalStone Container Corp
Priority claimed from PCT/US1995/005795external-prioritypatent/WO1995030589A1/en
Publication of MXPA96005466ApublicationCriticalpatent/MXPA96005466A/en
Publication of MX9605466ApublicationCriticalpatent/MX9605466A/en
A valve bag (80) is provided having a self-closing feature (92, 106, 108), to preclude sifting losses after filling, but before the bag is fully sealed, while enabling the facilitated final secure closure of the bag (80).