Silk-screen printing is a printing technique that uses a mesh screen to transfer ink onto a substrate, usually fabric or paper. It is a popular method of printing due to its ability to produce high-quality images with vibrant colors. The process involves creating a stencil of the desired image on a screen, then using a squeegee to push ink through the mesh and onto the substrate. This technique is often used for t-shirts, posters, and other items that require a high-quality image.