Careers

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Careers thePrinting Industry

• Printing Technology

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Objectives

• Identify describe the 5 main printing processes
• List the advantages disadvantages for each
  process

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Printing Technology

• All printing processes reproduce lines and/or
  dots that form an image.

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Printing Technology

• Printing is the process of manufacturing multiple
  copies of graphic images.
• Printing is not just limited to ink on paper.
• Many different substrates can be used (like
  plastic, fabric, wood, etc.)

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Major Printing Processes

• The following 5 major printing processes are used
  to reproduce graphic images
• 1. Relief Printing
• 2. Intaglio Printing
• 3. Screen Printing
• 4. Lithographic Printing
• 5. Electrostatic Printing

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Major Printing Processes

• The relief printing process includes letter press
  printing, flexography printing, and all other
  methods of transferring an image from a raised
  surface

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Examples of Relief Printing

• Corrugated Cardboard Boxes
• Paper Cartons
• Plastic Film

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Major Printing Processes

• Intaglio Printing is the reverse of relief
  printing. An intaglio image is transferred from a
  sunken image.
• Copperplate etching engraving are 2 intaglio
  processes.

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Major Printing Processes

• Industrial intaglio printing is called Gravure.
• This is used for extremely long press runs.

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Examples of Gravure (intaglio) Printing

• Cellophane aluminum Foil candy bar wrappers
• Readers Digest
• National Geographic

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Major Printing Processes

• Screen printing transfer an image by allowing ink
  to pass through openings in a stencil that has
  been applied to a screen mesh.
• This is some times called silk screening.

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Examples of Screen Printing

• Shirts
• Plastic containers
• Large display signs and billboards
• Printed circuit boards for electrical equipment

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Major printing processes

• Lithography was developed in 1798. Alois
  Senfielder used a piece of lime stone a made a
  flat image on it. He then transferred the image
  to paper.
• Lithography, aka offset printing, is based on the
  principal that oil and water DO NOT mix.

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Major Printing Processes

• A lithographic image is transferred from a flat
  surface.

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Examples of Lithography

• Newspaper
• Books
• Magazines
• Pamphlets

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Electrostatic Printing

• Electrostatic printing was invented in 1937 by
  Chester Carlson.
• It involves creating an image by electrostaticly
  charging areas of a special drum.
• As a result, the drum attracts a dry or liquid
  toner. The toner is then transferred and fused to
  sheet of paper.

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Examples of Electrostatic Printing

• Copy Machines
• Laser Printers

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Assignment

• Given a piece of foam, cardstock, and a piece of
  paper, design a relief stamp. Complete it within
  the time allowed. Be sure to complete the self
  evaluation form.

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Assignment 2

• Given a Mac computer loaded with the internet and
  a advantages disadvantages for the 5 printing
  processes. Follow the directions on the
  assignment sheet. Complete by the end of class
  and score 70 or higher.