"Target Zero!" is our mission when it comes to false rejection rates. During quality inspection of filling and packaging, the proportion of actual perfect products that are mistaken for defects and removed from the production process should be as close to zero as possible.
In the case of full-scale production, this does more than save the operator's budget. As a sustainable safeguard against packaging and food waste, this zero false rejection rate is also good for the environment and climate: Valuable resources must not be wasted in vain, and products should appear in stores unlisted until On the consumer table, not in the trash.
Continuously improving detection and rejection reliability
Zero percent is not just a theoretical goal: more than five years ago, the HEUFT InLine II IXS has proven under practical conditions that empty bottle detection is completely possible with error-free rejection while maintaining maximum detection reliability, so that even in valuable Only truly defective packaging will be disposed of before beverages or food items enter. Back in 1991, we specified a false rejection rate of only 1% for this device. It halved to 0.5% in 2002, dropped again to 0.25% in 2014, and even zero was measured by experts in 2016.
It is very simple to speculate what this means: for example, if 40,000 products are produced and inspected per hour in an 8-hour, two-shift production and inspection of 220 production days per year, then at the highest false reject rate of 1% In the worst case, 1,408,000 products end up in the bin each year without being used, 704,000 at a 0.5% false rejection rate, and 352,000 at a 0.25% false rejection rate.
Lowest level of false rejection rate
In this case, a reduction of "only" 0.75% would mean a reduction of more than 1,000,000 wasted packaging and food products each year. The lower the number of false rejections, the more production, sale and final consumption in the same period of time. Therefore, the closer to zero the proportion of good products that are falsely rejected, the higher the rate of growth in productivity and output. And, since the production of beverages, food and their packaging also generates CO2 emissions that should not be underestimated, each reduction of one thousandth can make a valuable contribution to climate protection.
Therefore, the lowest possible level of false rejection rates is also important for more complex comprehensive product inspections. As early as 15 years ago, glass inspection in glass bottles with full-bottle inspection equipment achieved an astonishingly low 1% false rejection rate, while thanks to pulsed X-rays and artificial intelligence in the false images used to reliably distinguish between real and hypothetical A further development in processing, the new HEUFT eXaminer IIXOS reduces this false rejection rate again by a factor of 5 to 0.2%. This is the result of a recent comparative test under real conditions on a large filling line. More unusually, this low value can even continue to be lowered. Just let us actually test each of your products and packaging materials!
The goal of reaching "zero" is also getting closer for the online inspection of already filled primary packaging: thanks to the continuous development of HEUFT technology, in reality, the perfect product and its packaging end up in the trash The risk of use is getting smaller and smaller.