Wrap
Wrap turns up in 2 fields: powder coating, nonwovens. Here is what it means to the people in each one.
Wrap in powder coating
Charged powder curling around edges onto the back of a part that the gun never pointed at.
Because powder follows field lines to the nearest grounded surface, some of it bends around the edges of tubes, wires and panels and coats the far side. Good wrap lets one-side spraying cover round tubing and saves gun passes. Too much wrap leaves heavy film on edges and backs and can put powder where masking was expected to keep it out.
"Great wrap on the round tube, we only need guns on one side of the line for these."
Wrap in nonwovens
Fibers or web winding around a roll instead of passing through, which can stop a line or damage the roll.
Wraps happen on card rolls, licker-ins, calenders and guide rolls when static, sticky finish, heat or a web break makes fibers cling. A small wrap grows quickly and can jam the roll or mark the fabric. Operators cut wraps off only with the roll stopped and locked out, and trace repeat wraps back to finish, humidity or roll surface.
"Calender wrapped twice on start-up, the pattern roll was too hot for the first few meters."