A common question that is asked is 'how tight do we screw your closure onto a bottle?' It is not a simple answer, you can measure the removal force to open a closure, but not the force used to apply it on your filling line. The important thing to understand is the removal force (opening force) that is required for your consumer when they first open your pack. Quite often it will be at least 30 days after you have filled the pack. The type of bottle, the temperature you fill the pack, and the thickness and structure of the liner will all have an effect on the removal torque. The attachment below will explain how to do this so your customers first experience with your pack will be a exceptional.
Cormack Packaging
Performance Closure Systems
