A term given to the occurrence of plate deterioration of the image area during the printing process; usually occurs on long runs.
WASH-UP
The procedure of cleaning a particular ink from all of the printing elements (rollers, plate, ink fountain etc.) of a press.
WATERMARK
A translucent logo that is embossed during the papermaking process while the paper slurry is on the dandy roll. See also dandy roll.
WEB
The roll of paper that is used in web or rotary printing.
WEB BREAK
A tear in a web roll during the printing process.
WEB PRESS
A printing press that prints on rolls of paper passed through the press in one continuous piece, as opposed to sheets of paper.
WEDDING PAPER
A soft paper that is thick and holds up well under embossing.
WET TRAPPING
The ability of an ink film to accept subsequent ink films.
WIDOW
A single word or two left at the end of a paragraph, or a part of a sentence ending a paragraph, which loops over to the next page and stands alone. Also, the last sentence of a paragraph, which contains only one or two short words.
WIPE ON PLATE
A plate on which is wiped a light sensitive coating by a coating device; usually the first step in this type of platemaking.
WIRE SIDE
That side of the paper that lies on the wire screen side of the papermaking machine.
WOVE
A smooth paper made on finely textured wire that gives the paper a gentle patterned finish.
