News and Events

December 12, 2012

Scumming

Fountain solution does not have the ability to clean the non-image areas of the plate.

December 12, 2012

Roller Marks

Bands of ink that form and look like rail road tracks. They appear on the roller train and may transfer and appear in the print. They may appear in rows across the sheet anywhere from the lead edge to the tail edge.

December 12, 2012

Poor Starts

Inability for plates to clean up quickly at startup and restart of press

December 12, 2012

Poor Rub

The printed ink film is dry, but has excessive rub and scuffing when going through the delivery and finishing processes.

December 12, 2012

Poor Ink Transfer

Ink may appear to be drying out in the roller train or press seems to be unable to adequately supply the proper ink water emulsion to the plate.

December 12, 2012

Plugging

The shadows and tight reverses start to fill in and become “plugged” with ink during the run.

December 12, 2012

Plate Wear

Fine lines and dots disappear. Work loses clarity and printing becomes streaky with weak solids and densities. Images disappear.

December 12, 2012

Plate Staining

Plates become sensitive during the run, and will start to transfer ink in the non- image area.

December 12, 2012

Piling

Non-Image/image area piling is ink and paper fiber build up on the blanket that prevents proper offset.

December 12, 2012

Picture Framing

Ink or other material accumulates on the blankets or transfer cylinders on the outside dimensions of the paper stock being run.

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