![]() Part of a press on which the plate or block rests during printing. This beading will occur if, for example, a copper plate which has not been cleaned properly is covered with Indian ink. Impressions can be made directly onto the metal, in particular with the screenprinting technique.Īn archival material should have a neutral or slightly alkaline pH it should also have good aging properties.Ī process of intaglio engraving on metal.Ī greasy surface repels water and aqueous preparations by reducing them to droplets. ![]() In the former case, it can be (a) engraved with the burin, (b) etched with mercuric bichloride, or (c) prepared lithographically. This metal can be used in printmaking either as a plate, or as a support for an impression to be made upon. It can be used in lithography and aquatint, for the application of a flat tint, and on drawings which are to be photographed in the half-tone technique.Īn additive used in paper-making processes and conservation treatments that will raise the pH level. Natural aging deterioration may also be caused by incompatible components reacting slowly within the structure.Ī small air-gun capable of spraying paint, ink, varnish or ground in a stream of fine droplets. ![]() The continuous action of atmospheric components- oxygen, moisture, as well as light, temperature – on materials and structures, leading to deterioration. In sheet form the acrylic resins bear trade names such as Plexiglas, Lucite and Perspex. Refers to a class of synthetic polymeric resins used extensively in emulsion paints, varnishes and adhesive formulations. ![]() In paper, an unstable state whereby the molecular structure of the paper breaks down, causing discoloration and weakening of the sheet. An abrasion is a localized abraded area.Ī paper product having a pH level of 7 or above. Having a worn or rubbed appearance as a result of mechanical or chemical action. ![]() An abridged glossary of terms with a focus on the printmaking medium. ![]()
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