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Printing processes of d&g
The document outlines various printing processes, including intaglio, offset lithography, and relief printing. It details the characteristics, uses, and market share of different methods, emphasizing that offset lithography accounts for about 40% of print jobs and explaining the distinctions between sheet-fed and web-fed processes. Additionally, the document highlights the historical significance of the printing press and various applications in packaging, publications, and art reproductions.
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Printing processes of d&g
- 1. 1 Communication Technology Learn thedifferent Printing Processes
- 2. 2 Intaglio – Gravure Relief Printing –Letterpress – Flexography Offset Lithography Screen Printing Method of printing from a sunken surface Image carrier is usually handcrafted, using an engraving or etching technique Lines are used instead of ink cells
- 3. 3 Paper Money Postage stamps Stockcertificates Fancy stationery Example of intaglio printing Depressed or sunken surface Image carrier is a cylinder 20% of all printing sales
- 4. 4 Cylinder has tinycells that hold ink for printing Prints from recessed area Long runs High quality printing Very expensive Millions of copies
- 5. 5 Packaging Publications – Magazines • NationalGeographic Speciality – Money, Stamps, Wall paper Smooth surface Thin metal plate Lithograph presses = thousands copies per hour Based on principle that water and oil don’t mix
- 6. 6 Offset lithography isthe most widely used print process. About 40% of all print jobs are produced with offset printing. It is an indirect printing process which means that an image is transferred, or offset, from one surface to another Right read, wrong read, right read
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- 8. 8 Newspapers, magazines, books, continuousbusiness forms, unit sets, advertising pieces, brochures, posters, greeting cards, business cards, folders, mailers, laser sheets, integrated products, coupons, and art reproductions. Printing from a raised surface – Potato Printing Letterpress Flexography – The most popular form
- 9. 9 Platen Press Rotary Press FlatbedCylinder Press Relief Printing 1st hand carved wood Books = $$ Moveable Metal type – Use over and over again Printing Press – Johann Gutenberg – 1450
- 10. 10 Printed from raisedsurface (relief) Millions of impressions from 1 plate Fast drying liquid inks Not as high quality as gravure or lithography Prints from raised surface
- 11. 11 Rubber plates orplastic plates
- 12. 12 Forcing ink througha stencil covered fabric or wire mesh Mounted in a sturdy frame
- 13. 13 1. Prints fromraised surface 2. Prints from recessed surface 3. Prints from smooth surface 4. Example of Relief Printing 5. Example of Intaglio Printing 6. Forcing ink though a stencil covered fabric/ wire mesh 7. About 40% of all printing jobs are printed using this method 8. Explain “wrong reading” 9. What is the difference between sheet and web fed? 10. Cheaper, but lower quality
- 14. 14 1. Prints fromraised surface: Relief Printing 2. Prints from recessed surface: Intaglio 3. Prints from smooth surface: Lithography 4. Example of Relief Printing: Letterpress or Flexography 5. Example of Intaglio Printing: Gravure 6. Forcing ink though a stencil covered fabric/ wire mesh: Screen Printing 7. About 40% of all printing jobs are printed using this method: Lithography 8. Explain “wrong reading” 9. What is the difference between sheet and web fed? 7. Cheaper, but lower quality: Flexography
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