Different Types of Printing
Lithography - etched aluminium plates wrapped around a cylinder transfer ink to an 'offset' rubber blanket roller.
Web Offset - printed on a roll not paper.
Rotogravure - copper plates (with mirror image) transfer ink directly to print surface, usually on rolls. Durable plates, good for longer print runs, high volume, e.g. newspapers.
Flexography - a positive mirror image rubber polymere plate, on a cylinder, transfers 'sticky' ink directly to print surface - usually roll feed. Sweet wrappers etc, gift bags.
Digital Printing - ideally suited to short run or specials on a range of print media from paper to metal.
Pad Printing - a printing process that can transfer a 2D image onto a 3D object
Colour Processes
Subtractive Colour - more colours layed on top of each other colour deeper
Additive Colour - exact reverse of above, more colours mixed together gets lighter
Colour Systems
Technical Essential knowledge for control of your work.
7 things you need to know about Print
Colour Models - CMYK, RGB, Hexachrome, Spot Colour, PMS Pantone Matching System
Formats - Standard ISO Paper sizes, A & SRA sizes, Imperial (North America) vs Metric ( Rest of the World), Tabloid (compact) Broadsheets Berliner, Envelope 'C' Sizes
Stock - Weights (gsm), Finish - gloss/silk/matt/coated/uncoated, Laid or Wove, Boards, Carton, many more variations, plastics and acetates
Artwork - Document set up, file formats & fonts, spellcheck, colour spec, printer marks, pre-flight check, mock-ups, proof, sign off (really important)
Print Processes - Lithographic, Gravure, Screen-print, flexography, pad-printing, six colour, laminate gloss/matt, foil blocking, embossing/debossing
Finishing - Binding, Folding & Creasing, Die Stamping/drilling
Costs - Get a quote early on, before you start the job in earnest if possible get identical spec for 3 print estimators to work to, learn roughly what things cost (unit cost), understand viable minimum quantities, extras/ authors corrections, delivery.
My Examples of different types of stock: