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Screen Printing (Serigraphy)

Screen printing is a printing process in which we use a mesh for ink transfer  over substrate by using stencil. In Stencil, areas are made permeable so ink can pass and form an image, and areas made impermeable blocks the ink, hence forming a non-image area.

A squeegee is is moved across (from top to bottom direction of stencil) screen to fill and open mesh apertures with ink, then a reverse stroke is made which causes screen to touch substrate momentarily along the line of contact. This makes ink to wet the substrate and is pulled out of mesh apertures as screen springs back after blade has passed. One color is printed at one time, so multiple screens can be used to produce a multicoloured image, graphic or design.

There are many terms used, which is essentially same technique. Traditionally, this process was known as screen printing or silk-screen printing, because silk was used in process. It's also called as serigraphy and serigraph printing. 


At present, synthetic threads are used commonly in the screen printing process. The most popular mesh in common use is made out of polyester. There are many special-use mesh's materials of nylon as well as stainless steel available to the screen printer. Also there are different mesh size types which determines look and outcome of finished design over the material.

(image source: wikipedia)

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