METHOD FOR PRODUCING RESIN BOTTLES

摘要

The present invention provides a method for producing a resin bottle formed from a preform as a prototype by a blow molding process. The method comprises: a first step of measuring each of weights or wall thicknesses of a plurality of inspection parts set in a body portion of the preform; a second step of comparing each of the weights or the wall thicknesses measured by the first step with a preset set value, and thereby inspecting a difference between each of the weights or the wall thicknesses measured by the first step and the set value for each of the inspection parts; and a third step of adjusting a condition for blow molding in the blow molding process in accordance with an inspection result of each of the inspection parts.