Glossary → Ghosting

Ghosting.

a blurred second copy of the image, offset from the first, left when paper or fabric moved while dye was still transferring

A soft duplicate of the image sitting a few millimetres off the original, and it is made at the end of the press cycle rather than during it. Press maker Geo Knight is blunt about the mechanism in its own note on the fault: when the press opens, the shirt contracts or the sheet floats to a new position while the paper is still giving off dye, so it prints again where it now lies. The fixes follow from that. Pre-press the blank to drive out moisture and pre-shrink it, run cooler and up to 30 seconds longer so the paper is spent by the time the press opens, hold the transfer with tack or heat tape, and, as Impressions puts it, lift the paper straight up in one motion instead of dragging it across a hot panel. Sawgrass adds a consumable: replace the blowout paper after each press, or the dye it picked up comes back as ghosting or ink transfer on the next one. This is not nozzle dropout and diagnosing it as one sends an operator to the printer for a fault the press is making: a dropout is a missing line that repeats in the same place on every print from that head, while ghosting is a whole second image that lands somewhere new each cycle. The blank, the paper and the press time are all spent by the time anyone sees it, and on a busy dark garment it can walk past the packing table.

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