Friction keeps a closure secure, and reduces as a screw thread is turned. The torque required to initiate turning is referred to as breakaway. The friction may be between the container finish or seal and the cap or its liner, in the screw thread or threads, or all of these. This breakaway point is detected as an initial peak, and is followed by a reducing running torque. Spillage on filling can either initially lubricate this contact, or for thickening contents, introduce a parasitic or thread-locking torque.
Featured or equivalent test standards for Mecmesin solutions in this section
