Silkscreen printing is a very old technique for reproducing graphic works developed in China in the Middle Ages.
The term of the technique comes from the Latin "sericum" which means silk. This technique uses textile stencils, some of which are coated with glue. Placed between the ink and the substrate, the glued parts of the textile screen do not allow the ink to pass over the substrate, when the unglue parts allow it to pass, thus colouring the substrate.
The technique was widely used by Andy Warhol in the 20th century.