SMALL HEATPROOF AND PRESSURE RESISTANT BIAXIALLY ORIENTED BLOW BOTTLE

摘要

PROBLEM TO BE SOLVED: To provide a small heatproof and pressure resistant biaxially oriented blow bottle which is suitable for a content requiring hot filling or for a content which increases the bottle inner pressure depending on a storage environment without damaging the seating and the design of the bottle. SOLUTION: This relates to a small biaxially oriented blow molded bottle whose body part is cylindrically shaped. The bottom face of a bottom part 110 is formed recessed upward forming a recess 111. The center of the recess is formed protrusive downward forming a circular projection 112. From the outer peripheral edge part to the facing outer peripheral edge part through the center of the bottom face of the bottom, a cross shaped rib 113 projecting downward is formed.