Reusable bulk packaging comprises a plastics bag having an opening which is closable by means of a zip fastener attached to the body of the bag, typically by means of an adhesive or by welding. Exemplary packaging is a flexible intermediate bulk container or a pallet cover (1). The plastics bag may be...http://www.google.es/patents/US6540085?utm_source=gb-gplus-sharePatente US6540085 - Reusable packaging
