To fix double seam wrinkles, you can follow these remedies based on the potential causes:

1. Clincher or first operation rolls set too loose:

• Readjust the first operation roll to the correct tightness.

1. Worn rolls:

• Replace the worn first or second operation rolls with new ones.

1. Second operation rolls set too tight:

• Readjust the second operation roll to the correct tightness.

1. Poor can end design:

• Consult with the can end manufacturer to improve the design.

1. Residual wrinkle along end curl:

• Call the cover manufacturer to address the issue with the end curl.

1. Improper curl in the cover:

• Call the cover manufacturer to address the issue with the curl.

1. Wrinkles or corrugations in the panel or curl of the cover:

• Call the cover manufacturer to address the issue with the panel or curl.

Remember to monitor the double seam quality regularly and make necessary adjustments to maintain optimal seam performance. If the issue persists, consider seeking assistance from an experienced technician or the equipment manufacturer.