A jumbo carries the full trim width of the machine and can weigh tens of tonnes on a large machine. It goes to the winder to be slit and rewound into customer rolls, or to a sheeter. Defects are traced back by reel number, and the lab holds the whole jumbo until shade, brightness and strength have cleared.
Heard on the job
Jumbo off the reel is on hold for dirt, so the winder crew can't start the set.
Also heard as
- parent roll
- jumbo roll
- mother roll
Related terms
Reel
Winding station at the end of the paper machine, and the full-width roll of paper wound there.
Turn-up
Transfer of the running sheet from a full reel spool onto a new empty one at the paper machine reel.
Reel sample
Strip of paper torn across the full width of a finished reel for lab testing before the reel is released.