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Underglaze is a method of decorating pottery in which painted decoration is applied to the surface before it is covered with a transparent ceramic glaze and fired in a kiln. Because the glaze subsequently covers it, such decoration is completely durable, and it also allows the production of pottery with a surface that has a uniform sheen.
Lajvardina wares are usually characterized by a dark blue or turquoise underglaze, however there are also examples of white or more green tinted ceramics. [9] The second layer of glaze, which adds the abstracted decoration, is often white, red and black, with inlaid pieces of cut gold leaf.
In traditional Nabeshima ware, the underglaze and final firing processes were carried out in Ōkawachi, while the overglaze process was carried out in Akaemachi. However, the 10th Imaemon built a climbing kiln himself and established an integrated production system in his own workshop, from shaping, underglaze and final firing to overglaze.
Most pieces use only one of underglaze or overglaze painting. [15] Underglaze painting requires considerably more skill than overglaze, since defects in the painting will often become visible only after the firing. [14] During firing even refractory paints change color in the great heat. A light violet may turn into a dark blue, and a pale pink ...
Underglaze decoration is applied before the glaze, usually to unfired pottery ("raw" or "greenware") but sometimes to "biscuit"-fired (an initial firing of some articles before the glazing and re-firing). [10] [11] [12] A wet glaze—usually transparent—is applied over the decoration. The pigment fuses with the glaze, and appears to be ...
Blue Ridge china. Blue Ridge is a brand and range of American tableware manufactured by Southern Potteries Incorporated from the 1930s until 1957.Well known in their day for their underglaze decoration and colorful patterns, Blue Ridge pieces are now popular items with collectors of antique dishware.
Porcelain often receives underglaze decoration using pigments that include cobalt oxide and copper, or overglaze enamels, allowing a wider range of colours. Like many earlier wares, modern porcelains are often biscuit -fired at around 1,000 °C (1,830 °F), coated with glaze and then sent for a second glaze -firing at a temperature of about ...
Small cup with the "Five Treasures", Chenghua reign mark, 2.9 × 7 cm, PDF.767. Doucai (Chinese: 斗彩; Wade–Giles: tou-ts'ai) is a technique in painting Chinese porcelain, where parts of the design, and some outlines of the rest, are painted in underglaze blue, and the piece is then glazed and fired.