Patent ID: 8734015
Filing Date: 2014-05-27
Classification: B65D

Abstract:
1. A liquid-filled packaging structure comprising a non-self supporting type liquid-filled packaging body formed by deaeration-packing of at least one of a liquid and a viscous packing material into a non-self supporting type flexible package bag comprised of a package bag body formed by seal-joining front-side and rear-side soft laminate films and a film-shaped one-way pouring nozzle which is protruded from any position of a side portion, a corner portion and a top portion of the package bag body having a non-return function that blocks penetration of air generated by a closing action between mutual inner surfaces of the soft plastic films when the packing bag body is tilted to pour a liquid packing material and the pouring path is rendered into a wet state by a liquid material passing through the path to attach the liquid packing material to the inner surface of the pouring path and provided on an outer surface with a coating layer made from at least one of a water-repellant material and an oil-repellant material and on an inner surface of a predetermined opening position and a vicinity of the predetermined opening position within a portion of a pouring path with a wet-treated layer, and a spiry projection that prevents dripping of liquid, the spiry projection provided at a position intermediate a predetermined opening position of a lower edge portion of the film-shaped one-way pouring nozzle and the base end portion of the film-shaped one-way pouring nozzle, and a self-supporting type outer cylindrical flexible package bag made of a soft laminate film for housing the non-self supporting type liquid-filled packaging body which is provided with tear-guide perforations at one-side portion thereof for opening the nozzle to expose a tip portion of the film-shaped one-way pouring nozzle, and a horizontal seal portion provided at an upper end part of the non-self supporting type liquid-filled packaging body being fused to an upper end portion of the self-supporting type outer cylindrical flexible package bag such that the non-self supporting type liquid-filled packaging body is housed and supported within the self-supporting type outer cylindrical flexible package bag in a suspended state.