This screen carries the stencil over the printing stock and forcing the printing medium throught the stencil apertures onto the surface of the stock with a rubber or pastic blade, called a squeegee to push the printing medium across the screen and through the screen and through the stencils. The stencils can be cut by hand, using a knifecut film or laminate material, or by using photomechanical techiques, and can be made by several methods to block the no-printing areas of the screen and to provide clear, well defined open areas to form the printed image. Accoording to their preparative techques, stencils can be subdivided into two distinct groups of handmade and photo-mechanically made stencils. The knife-cut stencils can be made from paper laminates, water adhered films, and solvent adhered films. On the other hand, there arefour different photo-stencil systems.
Individual materials require different procedures and different techniques or technology.
Its role is becomeing significant to the printing and educational industries, for examples, in the area of advertising sign printing, product-related printing, and printed materials for PR purposes as well as instructional materials. It is evident that the screen printing cost is relatively law and this type of printing requires a few printing a few printing a few printing equipment and machines only. All right reserved.