7 ноя 1475 г. - Spit bite Aquatint is n intaglio method of painting strong acid directly onto the aquatint ground of an etching plate. Depending on the amount of time the acid is left on the plate, light to dark tones can be achieved. To control the acid application, saliva, or gum arabic can be used. Traditionally a clean brush was coated with saliva, dipped into acid and brushed onto the ground, hence the term "spitbite".
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7 ноя 1475 г.
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