Undercolour Removal: technique of making colour separations such that the amount of cyan, magenta and yellow ink is reduced in midtone and shadow areas while the amount of black is increased. Abbreviated UCR.

Universal Copyright Convention (UCC): gives protection to authors or originators of text, photographs or illustrations etc, to prevent use without permission or acknowledgment. The publication should carry the copyright mark c, the name of the originator and the year of publication.

Up: printing two or three up means printing multiple copies of the same image on the same sheet.

UV Coating: liquid laminate bonded and cured with ultraviolet light. Environmentally friendly.

Undercolour Removal: technique of making colour separations such that the amount of cyan, magenta and yellow ink is reduced in midtone and shadow areas while the amount of black is increased. Abbreviated UCR.

Up: printing two or three up means printing multiple copies of the same image on the same sheet.

UV Coating: liquid laminate bonded and cured with ultraviolet light. Environmentally friendly.

Varnishing: to apply oil, synthetic, spirit, cellulose or water varnish to printed matter by hand or machine to enhance its appearance or increase its durability.

Vellum: the treated skin of a calf used as a writing material. The name is also used to describe a thick creamy book paper.

Vignette: this term usually refers to a single dot pattern that may start at 50% dot and gradually decrease to say 5% in a smooth graduation.

VOC (volatile organic compound): the group of compounds which evaporate at low temperature, such as isopropyl alcohol (ipa), used in litho printing as an additive to water to assist water/oil separation.  VOCs are associated with the production of greenhouse gases.