Integrally blow-moulded bag-in-container having interface vents opening to the atmosphere at location adjacent to bag's mouth; preform for making it; and processes for producing the preform and bag-in-container

摘要

The invention is an integrally blow-moulded bag-in-container ( 2 ) and preform ( 1 ) for making it The bag-in-container ( 2 ) has an inner layer ( 21 ) forming the bag and an outer layer ( 22 ) forming the container, and a mouth ( 5 ) fluidly connecting the volume defined by the bag to the atmosphere. The container further has at least one interface vent ( 3 ) fluidly connecting the interface ( 14 ) between inner and outer layers to the atmosphere, wherein the at least one vent ( 3 ) runs parallel to the interface between inner and outer layers ( 21 ) ( 22 ) and opens to the atmosphere at a location ( 4 ) adjacent to, and oriented coaxially with the bag-in-container's mouth ( 5 ). Processes for manufacturing a preform and a bag-in-container as defined above are defined too.