CRYSTALLIZED BOTTLENECK OF POLYESTER BEER BOTTLE AND MANUFACTURING METHOD FOR THE SAME

摘要

A crystallized bottleneck of polyester beer bottle, in which thecrystallized bottleneck is smooth and has a crystallized length of 0.5-35 mmatthe bottleneck portion. To manufacture the crystallized bottleneck, anuncrystallized blank of the bottle is air-conditioned and a crystallizer ispreheated. A bunker is loaded with the uncrystallized blank, which isdelivered toa blank horse's head, then a bottleneck portion of uncrystallized blank issentinto a crystallizer to be heated and crystallized; concurrently theuncrystallizedportion is controlled to be unaffected by the hot environment. The polyesterbottle blank having a crystallized bottleneck portion is discharged throughoutputblank horse's head and is cooled shaped. The invention features enhancedheat-durability and form-stability, so that the polyester beer bottle exhibitsexcellent pressure-tightness of beer contained therein.