With the rising demand for packaged drinking water, the beverage companies are investing a big share in packing and promoting mineral-rich water. But there is a considerable difference in the prices. The reason behind this is quality of packing that is used for packing the water. A good quality bottle has undergone different types of testing and is considered as user-friendly and safe as primary packing.
By not going into the molecular structure or chemical properties, physical properties are really a matter of concern for most of the manufacturers. Deformed bottles, broken bottles, leaked caps, etc. may lead to spoilage of the whole lot and may face straightway rejection from QC in-charge or from the retailer. To cut down the rejection cost and failure cost, it is important to perform the test before starting the mass production of the bottles.
Top Load Testing – During transportation or in warehouses, the bottles are stacked over each other. It is a very common technique of utilising the space efficiently. Due to stacking, bottles are being subjected to a constant compressive load. This may result in buckling of the bottle from different points, like from the neck or from the bottom. To avoid such deformities, manufacturers must perform top-load testing by applying a compressive load on the bottle sample. If manufacturers understand the behaviour of their bottles, they can issue the guidelines to the carrier not to subject the load exceeding the defined limit. In case of failure to follow the guidelines, claims can be slapped on the carrier company.
Torque Testing – Torque is the rotational force applied to the cap to open it. To make bottles user-friendly, it is important to have right torque requirements. The user of a packaged water bottle could be a 10 years old child or a 65 years old lady. So, there is a huge variation in strength that can be applied. Having the appropriate torque not only makes the bottle user-friendly but also assures the leak resistance.
Bottle Drop Testing – It is a very simple test but tells a lot about the crack resistance or dent resistance properties of the bottles. When PET bottle falls from a height accidentally or due to manhandling, how strong it is to bear the impact of free falling? In this test, the bottle is made to drop from a height and visual analysis is done to see any deformity developed. Drop testing instrument is a standardised instrument designed as per the testing standards issued by relative authorities.
For capturing a good market share it is very important to think from customer’s perspective. Failing to adhere quality standards result in short lived success. Thus, delivering a good user experience along with good quality should be the priority of manufacturers.