STRUCTURE OF INFLATABLE AIR-PACKING DEVICE HAVING CHECK VALUE AND MULTIPLE AIR BUBBLES

摘要

A bubble wrapping sheet has a simple structure and can easily inflate all of the air bubbles to wrap a product to be protected The air bubbles are constructed by tube partition seals that create air tubes and by bubble partition seals that divide the air tubes into a plurality of serially connected air bubbles The shape and size of the tube partition seals and bubble partition seals can be modified to change the shape and density of air bubbles the bubble wrapping sheet A check valve for the bubble wrapping sheet is provided to each air tube The check valve may be configured by an air flow maze portion having a zig-zag air passage and a common air duct portion which provides the air to the air flow maze portion of a current air tube as well as to the air flow maze portion of a next air tube.