Why is rewind direction so important?

If you are hand-applying labels, rewind direction is probably not all that important to you. If you use a machine label applicator to apply your labels to your bottles or containers, then rewind direction is a critical piece of information that we will need to know. The equipment you use will specify a rewind direction between 1 and 8, and that's the number your rolls must be produced with to be compatible with your label applicator.