Gang sheet.

A gang sheet is one sheet of DTF film carrying many unrelated designs, often pulled from several orders at once, printed in a single pass and cut apart afterwards. What nesting actually saves is film and press time, both of which you pay for by the length of sheet whether it is full or not; ink and adhesive powder go onto the designs themselves, so packing more work on does not reduce those. Nesting goes wrong in two directions: gaps you paid for and threw away, and designs packed so tight there is no room for the blade or for a clean carrier edge at the press. A nozzle dropout streaks the full length of the sheet and a powder miss takes out whatever block it lands on, so one fault runs through several unrelated orders at once and every one of them reprints late.