Although ceramics appeared earlier, it was really used for writing and popularization after Cai Lun created the excellent "Cai Hou paper". In 404 AD, Emperor Huanxuan of the Eastern Jin Dynasty ordered the use of paper to be scrapped, which made the application of paper increasingly popularized and popularized. Looking at the problem from a historical point of view, the invention of any major technology in history is not Machinable Ceramic accidental, and has a development process from conception to prototype to Machinable Ceramic perfection. Although Cai Lun had paper before, this did not detract from Cai Lun's great achievements as a major reformer and the inventor of the invention of perfecting papermaking. It was Cai Lun's invention that brought paper into its practical stage, and it was rapidly and widely popularized, providing a high-quality, inexpensive and easy-to-obtain printing substrate for perfecting printing and promoting the development of printing. Cai Lun's exploits and his glorious image as the inventor who perfected the great invention of papermaking cannot be denied.
To sum up: the invention and improvement of paper have made Chinese characters develop in the direction of simplification, neatness, standardization and ease of engraving and copying; the invention, development and application of fabrics, paper and ink have provided an indispensable tool for printing. The Machinable Ceramic continuous improvement and combination of stamping and rubbing based on hand engraving and transfer reproduction technology, as well as fabric printing technology, have laid a technical foundation for the invention of printing; social progress, cultural undertakings Development has created the social environment and objective requirements for the invention of printing. The possession and combination of these four made the invention of printing a historical necessity, and it began to be popularized and applied in the Sui and Tang dynasties.
Are the thermal conductivity of ceramics high?
2022 02/21