Screen printing is a printing technique that uses a woven mesh to support an ink-blocking stencil.
A screen is made of a piece of porous, finely woven fabric called mesh stretched over a frame of aluminium or wood. Areas of the screen are blocked off with a non-permeable material to form a stencil, which is a negative of the image to be printed. I used hand cut paper stencils for each colour and a stopout glue for certain small areas. The attached stencil forms open areas of mesh that transfer ink or other printable materials which can be pressed through the mesh as a sharp-edged image onto a substrate. A fill blade or squeegee is moved across the screen stencil, forcing or pumping ink into the mesh openings for transfer by capillary action during the squeegee stroke.
These were done as a part of school curriculum in grade 11th and 12th. I scored 99/100 in my Senior Secondary CBSE examination and was the highest .1% scorer in India.