Observation of PET Bottle Using Microfocus X-ray CT System

User Benefits

- Tightness and internal impurities of a PET bottle cap, invisible from outside, can be observed in a non-destructive and simple manner. - The gap between a cap and a bottle is visualized through three-dimensional (3-D) representations and the gap size is determined.

Introduction

The basic technology of PET bottles was established by DuPont in 1967, and these bottles have been widely used as containers for soft drinks, seasonings and liquors. In 1974, carbonated drinks in PET bottles were introduced in the U.S. PET bottles have various advantages including being light and chip-proof, can be opened and closed repeatedly, molded into various shapes, and are highly recyclable and environmentally friendly. Even after being opened, PET bottles are often carried with liquid in them. Therefore, to prevent leaking, it is important to make sure that the PET bottles are manufactured as designed and that the caps properly tighten. A microfocus X-ray CT system is an essential tool to observe the tightness of PET bottle caps. This X-ray CT system makes it possible to visualize an internal 3-D structure without destroying objects. Herein, an example of an observation of a PET bottle cap using a Shimadzu inspeXio SMX-225 CT FPD HR Plus micro focus X-ray CT system is described.

April 1, 2021 GMT