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Paper & Pulp Dictionary Glossary "U"

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 Definitions for commonly used terms, words and phrases used in the pulp and paper trade



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Union Kraft
A packaging material comprising two layers of Kraft paper bonded together by means of a laminate that is resistant to the transmission of water in liquid or vapor form. E.g. bitumen or plastic.
Unglazed Paper
Un-calendered paper.
Un-sized Paper
A paper which has not been sized.
Urban Forest
A description of towns and cities which are the source of wastepaper as one of the raw materials used for paper making.
Urban Wood
Used pallets, wooden shipping crates and clean construction wood diverted from the waste stream and chipped for use in making particleboard and medium density board.
UV Coating
A very glossy, slick coating applied to the printed paper surface and dried on press with ultraviolet (UV) light. UV coating can cause slight variations in match colors, so consult an ink manufacturer or printer for best results.
UV Ink
An ink specially formulated to dry quickly with ultraviolet light while still on press. Fast UV drying eliminates the need to wait for the first side to dry before printing the second side.
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