Porcelain in England in 1748 in order to compete with imported porcelain, bone china is now made worldwide. The English had read the letters of Jesuit missionary Francois Xavier d'Entrecolles, which described Chinese porcelain manufacturing secrets in detail. One writer has speculated that a misunderstanding of the text could possibly have been responsible for the first attempts to use bone-ash as an ingredient of English porcelain, although this is not supported by researchers and historians. In China, kaolin was sometimes described as forming the 'bones' of the paste, while the 'flesh' was provided by the refined rocks suitable for the porcelain
Porcelain the kiln under high temperature, or because the body and the glaze can be easily scratched. Experiments at Rouen produced the earliest soft-paste in France, but the first important French soft-paste porcelain was made at the Saint-Cloud factory before 1702. Soft-paste factories were established with the Chantilly manufactory in 1730 and at Mennecy in 1750. The Vincennes porcelain factory was established in 1740, moving to larger premises at Sèvres in 1756. Vincennes soft-paste was whiter and freer of imperfections than any of its French rivals, which put Vincennes/Sèvres porcelain in the leading position in France and throughout the whole of