In screen printing, the act of suspending printed material over rods or other such structures so as to facilitate drying without having the printed substrates contact each other.
In web offset lithography, festooning refers to the act of giving an unwinding paper roll a long lead time before it enters the printing section of the press. This is often needed to give tightly-wound paper rolls a chance to "relax" and retain their original dimensions, lest registration problems occur. The set of collapsible rollers used to accomplish this is known as a festoon.