GAS GHOSTING

Also called “gloss ghosting”, results from uneven drying triggered by the drying action of ink or varnish on an adjacent sheet. Gases released by ink during the drying process can migrate to an adjacent sheet and effect the drying rate of ink on that sheet. This non-uniform drying rate can lead to a faint image (ghost) being transferred from the one sheet to the other. A lot of factors come together to make a gas ghost, but the risk can be minimized by allowing the first side of the sheet to thoroughly dry before printing the other side, and by printing first the side most likely to show a ghost image (like large solids). Once occurring, a gas ghost can be difficult or impossible to eliminate. See also “ghosting”.