Screen printing is a form of stencilling first used in China over a thousand years ago. It uses a woven mesh (traditionally silk, but now usually polyester) stretched over a screen to hold an ink-blocking stencil of a desired image. When the screen is placed over the item to be printed, ink is pushed through the mesh leaving the design perfectly replicated on the item underneath.
Advancements in photographic technology at the beginning of the 20th century have since made it possible to transfer a high quality detailed image onto a screen. This has helped screen printing develop into one of the most widely used methods of textile printing available today.