Tom Verzi Pronto ERP 952-942-5858 e-mail protected from spam bots

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Lithography a printing technology that dates back to 1798 when Alois Senenfelder developed a method of imaging limestone from which a print was produced. Based on principle that oil and water do not mix, an aluminum or plastic plate is coated with a photopolymer film that is exposed to light through a photographic mask. The exposed areas are chemically "hardened," and unexposed areas are dissolved when plate is put through a chemical process, which is next stage. When printing a page, plate is dampened, and water adheres only to unexposed, non-image areas, which repell greasy ink that is applied to plate immediately thereafter.

Screen-printing (also known as "silk-screening" or "serigraphy") creates bold color using a stencil technique. The artist draws an image on a piece of paper or plastic film can also be used.) The image is cut out creating a stencil. (Keep in mind pieces that are cut away are areas that will be colored.) A screen is made of a piece of fabric (originally silk) stretched over a wood frame. The stencil is affixed to screen. The screen is then placed on top of a piece of dry paper or fabric. Ink is then placed across top length of screen. A squeegee (rubber blade) is used to spread ink across screen, over stencil, and onto paper/fabric. The screen is lifted and image is now transferred onto paper/fabric. Each color requires a separate stencil. The screen can be re-used after cleaning.

See how difficult it is to produce a printing material. However, nowadays with continuous innovation for printing technology, printing is just a click away. But process itself is a complex procedure to follow. You need expertise and knowledge in field. So it’s very important to appreciate and give value to printing materials we have because life and death is at risk before it began.

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