METHOD OF FORMING THE NECK PORTION OF A SYNTHETIC RESIN BOTTLE

摘要

TITLE OF THE INVENTION Neck orienting method of Bottles of Saturated Polyester Resins Herein disclosed is a method of orienting the neck of a bottle of a saturated polyester resin so as to enhance the physical properties and durability of the neck. The neck orienting method includes the step of inserting an orienting rod having a taper head into the neck which is being heated. The neck orienting method may include the step of orienting only the mouth edge of the neck.