PLASTIC POUCH, AND STORING AND DISPENSING METHOD USING SAME

摘要

"IMPROVED PLASTIC POUCH, AND STORING AND DISPENSING METHOD USING SAME" A pouch for containing wine or other oxygensensitive liquid is formed from superposed layers of plastic film having welds to define a rectangular pouch with a straight-sided or shallowly tapering passage communicating a main container portion of the pouch with the exterior of the pouch. When the pouch is full, this passage is sealed off by a further weld which is removed by the consumer to allow the consumer to insert a separate valve into the pouch for dispensing of the liquid. The pouch wall has an oxygen-barrier layer consisting mainly of a copolymer of vinylidene chloridevinyl chloride as well as an outer abuse-resistant layer of ethylene-vinyl acetate and an inner sealing layer of either ethylene-vinyl acetate or polyethylene, depending on the intended contents of the pouch.