Reverse Wrinkle
Double Seam Components - Cause & Remedy

A Reverse Wrinkle projects towards the can body or the center of the can. The point on a Reverse Wrinkle can puncture the can body causing product loss or spoilage. A Reverse Wrinkle is formed during the 1st Operation Seaming process and cannot be ironed out regardless of how tight the 2nd Operation Rolls are set.

Reverse Wrinkle Reverse Wrinkle
Probable Cause Suggested Remedy
1st Operation Seaming Roll set too tight. Adjust 1st Operation Seaming Roll. See Parts List Instructions or Service Manual for this procedure.
Wrinkles are in the cover curl before the run. Discuss with your cover supplier.