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Shellac is much softer than Urushi lacquer, for instance, which is far superior with regard to both chemical and mechanical resistance. [ citation needed ] But damaged shellac can easily be touched up with another coat of shellac (unlike polyurethane, which chemically cures to a solid) because the new coat merges with and bonds to the existing ...
The two main types of lacquer are Asian, made with sap from the Urushi tree, and European, made with a variety of shellac and natural resins. Lacquer can be damaged by age, light, water, temperature, or damaged substrate. Conservation treatments include dry cleaning, wet cleaning, consolidation and filling losses.
The term for lacquer is urushi (漆), source of the English hybrid word "urushiol". Etymologically, urushi may be related to the words uruwashii ("beautiful") or uruoi ("watered", "profitable", "favored"), due speculatively to their value or shiny appearance, or perhaps the humidifying rooms used in production of lacquered wares.
Raw lacquer has a water content of around 25% and appears in a light brown colour. This comes in a standard grade made from Chinese lacquer, which is generally used for ground layers by mixing with a powder, and a high-quality grade made from Japanese lacquer called kijomi-urushi (生正味漆) which is used for the last finishing layers.
There are a variety of lacquers that have been, and continue to be used such as Urushi (unprocessed lacquer), Guangqi (processed), Nitrocellulose, lacquers with acrylic resins, and water-based lacquers, but the most well known lacquer is Urushi lacquer. [22] This lacquer paint is made from raw lacquer or sap taken from trees.
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Toxicodendron vernicifluum (formerly Rhus verniciflua [1]), also known by the common name Chinese lacquer tree, [1] [2] [3] is an Asian tree species of genus Toxicodendron native to China and the Indian subcontinent, and cultivated in regions of China, Japan and Korea. [4]
Writing lacquer box with Irises at Yatsuhashi, by Ogata Kōrin, Edo period (National Treasure) Inro in maki-e lacquer, Edo period, 18th century. Lacquerware (漆器, shikki) is a Japanese craft with a wide range of fine and decorative arts, as lacquer has been used in urushi-e, prints, and on a wide variety of objects from Buddha statues to bento boxes for food.
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