About the origin of the silk screen printing technology

      About the origin of the silk screen printing screen printing technology has been widely used in the process of PCB production, is not only a single panel, double panel and the transfer of multilayer PCB circuit graphics, resistance welding flux, characters, and so on all use silk screen printing process.With the development of economy and technology, increasingly demanding higher precision and qualified rate of products, ensure product quality, reduce cost, thus obtains the good economic benefit.In recent years the close circuit is made of silk screen printing process and has high position accuracy.
       Silk screen printing originating in China, it has a history of more than two thousand years.As early as the qin and han dynasties in ancient China, a folder valerian printing method.To the eastern han dynasty folder valerian wax printing method has been widely popular, and the level of printed products also have improved.To the sui dynasty of years, people started using stretched have tulle frame for printing, make folder valerian printing process for the development of silk screen printing.According to historical records, when the tang dynasty court wear elaborate costumes are printed on this method is useful.Have a development in the song silk screen printing, and improved the original use of oily coating, start in the dye into starch powder, makes it the size of screen printing, screen printing products of color more gorgeous.
Silk screen printing is a great invention of China.American journal of silk screen printing of            

         Chinese silk screen printing technology have such comments: "there is evidence to prove that the Chinese use horsehair and template in two thousand years ago.In the early Ming dynasty clothing proved their spirit of competition and processing technology?The invention of the silk screen printing, promote the development of human material civilization in the world.In two thousand years later, the silk screen printing technology development, has now become an indispensable part of human life.