Lithography Essay - 766 Words

Lithography This process uses a flat aluminium printing plate and works on the principle that oil and water do not mix. The image is transferred onto the plate photographically through ultra-violet light shining through a negative. The plate is then washed with a chemical that makes the image area attractive to the oily ink. The non-image area is later dampened with water to repel the ink. To lengthen the life of the printing plate and prevent the paper becoming damp through contact with the water, a rubber blanket transfers the ink from the plate to the paper. This is called offset lithography and is used for most commercial printing such as books, magazines, brochures etc. If rolls of paper†¦show more content†¦Limited edition fine art prints and postage stamps can be done this way but are reflected in the high costs. * 4 colours (process colours) - black, cyan, magenta and yellow - are used to build up all other colours and tones. * Excellent for half tones. * Economical for between 500,000 and 5,000,000 copies. * High quality can be achieved. Letterpress This type of printing is much less common these days but is still economical for small print runs. It uses a raised surface for printing off, usually made of aluminium sheet. The ink is rolled onto the plate and this is transferred directly to the paper. The quality is very good but the range of available type is very limited. It is used for items such as invitation cards, and short runs of books. * Colours generally limited to one or two ready mixed colours. * Economical for between 500 and 5,000 copies. * High quality in terms of sharpness. * Limited typefaces available. * Used mainly for text only - not suitable for half tone illustrations. Flexography This is similar to letterpress in that it uses raised images but they are made from a rubber or plastic sheet. The flexibility of the plate means that it is particularly suitable for printing on to plastic film, corrugated card etc. and is extensively used for both plastic and paper carrier bags.Show MoreRelatedThe Album Of La Revue Blanche1585 Words   |  7 Pagesprint culture, but also a beautiful case-study in the techniques developed by leading artists in the realm of fine art lithography. It is the goal of this exhibit to explore the place of the graphic arts in early modern art through the example of this journal, and to examine more closely the stylistic hallmarks of the lithograph in a more detailed way. Lithography: Method Lithography is planographic printing process that makes use of the immiscibility of grease and water. In the lithographic processRead MoreAnalysis Of The Book The Principle 977 Words   |  4 Pagesthat depicts a sad laughing clown. The lithograph seems like it takes place in a large bare room with the clown bust gazing up and to the right of the room as if is pondering or thinking and has been for a very long time which gives the bust like lithography life. The Principle, was published in 1919 on cream, smooth, Japanese woven paper. Was published by Verlag Gustav Kiepenheuer from Berlin with the theme of death and war with political. 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