 Corey Hensel DDL Inc. Director of Operations Visit Website |
Corey Hensel has more than 14 years of experience in the package and product testing industry. As Director of Operations, he is responsible for DDL’s processes and operational efficiency across all three of DDL’s facilities. He is also responsible for ensuring all tests are performed in accordance with the most current industry standards and meets the quality standards established through DDL’s ISO 9001 certification. Hensel is Chair of the ASTM D10.23 committee, a member of the Institute of Packaging Professionals (IOPP) and TAPPI.
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Package Testing Q&A
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Asked April 9th, 2009
If your foil pouch seal strength is yielding a steep peel strength curve, perhaps you can consider whole package, in-process BURST testing to monitor your sealing process output. Although there is no demonstrable correlation between burst and peel strength the objective would be to develop control limits on your pouch burst strength values and routinely measure and monitor your seal integrity through burst testing data.
You can create control charts for your burst testing values for your package and establish upper and lower control limits based on your sealer operational capabilities and validated sealing parameters. Burst testing can discern a breach in the seal integrity. Furthermore, once you establish upper and lower control limits from your control charting activities, you can use your routine burst values to determine when you are trending outside your control limits and further evaluate the seal quality and integrity of the pouch to ensure you are producing acceptable seals.
I would recommend performing restrained burst testing and use a defined restraining fixture and defined headspace between pouch and fixture when performing the test to provide as much test method consistency as possible.
