Taipu Blue and White Porcelain, also known as underglaze blue and white porcelain, often referred to as blue and white, is one of the inheritance varieties of Taipu Ceramics. Beginning in the late Song and Yuan Dynasties, the blue and white porcelain of the Ming and Qing dynasties became the mainstream products of Tai Po. After several hundred years of development, it has created a variety of glazed blue and white flowers, malachite green glaze blue and white, bean green glaze blue and white, blue and white broccoli, yellow broccoli, tiger skin glaze blue and other varieties. The product has glaze color jade, such as fat like jade, delicate and elegant color, graceful and elegant, crystal and chic, glazed beautiful, beautiful appearance, elegant and generous, durable and never fade, with "white as jade, bright as mirror, thin as Paper and sound are like a slap in the face.

Taipu Blue and White Porcelain is made of local rich minerals such as china clay, feldspar and quartz. It is scientifically prepared and refined to produce blue and white porcelain billets and glaze materials. The ancient paints used local cobalt oxide-containing earth cobalt deposits. As a raw material, cobalt oxide chemical raw materials are now used, and after finishing, it is made into a blue-and-white pigment. The pattern is painted on the ceramic body with blue-and-white pigment, and then a layer of transparent glaze is applied, and the flame is fired once at a high temperature of 1320 ° C to 1350 ° C. The cobalt material drawn on the ceramic body is blue after being fired, the picture is smooth and bright, crystal clear and moist, elegant and bright, with strong coloring power, bright hair color, high firing rate, stable color and never fade. The composition of the pattern is wonderful, the lines are free and easy, the sleek and clean, the clean and the clean, the talk and the gods, the simplistic and subtle, the imaginative and the fascinating. The main patterns are: plum, orchid, chrysanthemum, bamboo, lotus, lotus, banana leaf, unicorn, dragon and phoenix, Tiangong characters, boy, ganoderma, crane, flower, double lion ball, flowers and birds, figures, animals, landscapes, fish, Auspicious meanings or poems. The main products are: bowls, plates, saucers, cups, bottles, cylinders, cans, altars, underglaze blue and white tea sets, underglaze blue and white tableware.

Quality Technical Requirements for Taihua Blue and White Porcelain I. Protection Form Daily Use, Craft Blue and White Porcelain II. Raw Material Requirements 1. Kaolin: High-quality kaolin produced from high-silicon, low-iron and small shrinkage in the protected area. The chemical composition content range should meet the requirements of the following table. Chemical composition SiO2Al2O3K2ONa2OCaOMgOFe2O3TiO2 content /% ≤ 75.0 ≥ 16.5 ≥ 1.8 ≥ 0.4 ≤ 0.5 ≤ 0.3 ≤ 0.5 ≤ 0.12. Billet: The chemical composition content should meet the following table. Chemical composition SiO2Al2O3Fe2O3K2O+Na2OCaO+MgOTiO2 Burning content /% ≤ 73 ≥ 16 ≤ 0.3 ≤ 3.5 ≤ 0.8 ≤ 0.1 ≤ 43. Feldspar: The chemical composition content range should meet the following table. Chemical composition SiO2Al2O3K2ONa2OCaOMgOFe2O3TiO2 Cautery content /% ≤ 74.0 ≥ 11.0 ≥ 11.0 ≥ 1.5 ≤ 0.4 ≤ 3.6 ≤ 0.1 / ≤ 2.84. Blue and white aqua pigment: Take the cobalt or cobalt oxide in the protected area as a color material, after precise ingredients , honed, sifted, and aged to make blue and white water pigments. 5. Water: The water source for the production of blue-and-white water-based pigments is taken from the pure mountain spring water in the protected area. The water quality should be in accordance with the national standard for drinking water, and it should be used after 5 days to 7 days of static stale. Third, the process and requirements 1. Process flow (1) Process: raw material selection → natural weathering → refined billet → forming → painted decoration → glaze → firing → finished product → inspection → packaging → factory (2) process requirements refined billet: The kaolin should be stored and weathered for more than 180 days at a special site. After crushing with special equipment, the kaolin, feldspar and quartz (50-60:20～30:15～25) of the corresponding mesh number are selected according to different product varieties. The raw material is processed and formed into a blank, and the blank is naturally aged for more than 15 days after being placed in a cool and humid material room, and the vacuum is further practiced to form a blank. Molding: Forming by hand drawing, sculpture, mechanical rolling or grouting. Painted decoration: hand-painted, decals and prints. Glazing: The glaze method is immersed in glaze, glaze or spray glaze. The thickness of the glaze layer is 0.8 to 1.1 mm. Firing: A reduction flame firing process is performed by bare or simmering, and the firing temperature is between 1330 ° C and 1380 ° C. Inspection: After passing the inspection, it is packaged and shipped. Fourth, the quality characteristics (a) sensory characteristics: beautiful shape, clear and elegant, glaze layer crystal clear jade, simple and natural. The blue pattern is hand-painted, the color is strong, the hair color is bright, and the pattern is not easy to fade. (2) Physical and chemical indicators: water absorption rate: ≦0.45%, thermal shock resistance: the product is heat-exchanged from 160 °C to 20 °C without cracking. (3) Safety and other quality technical requirements: Product safety and other quality technical requirements must comply with relevant national regulations.

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Producers in the production area of ​​Taipu Blue and White Porcelain may submit an application to the Meizhou Entry-Exit Inspection and Quarantine Bureau for the use of the \"Special Mark for Geographical Indication Products\", which shall be reviewed by the Guangdong Entry-Exit Inspection and Quarantine Bureau and announced to the General Administration of Quality Supervision, Inspection and Quarantine for approval. The testing agency of Taipu Blue and White Porcelain is selected by the Guangdong Entry-Exit Inspection and Quarantine Bureau in the testing institutions that meet the qualification requirements.