![]() A significant area of cost is attributed to ‘making ready’ the job – ie the cost and time involved in making the plates and in running the ‘spare’ material that is required until all the plate images are in register and the job can be run.Similarly, there might be fewer colours used such as two-colour printing where only two specified colours will be printed, and because only two printing plates are being made this is cheaper than four-colour litho. These may be special inks such as fluorescent or metallic or a specific Pantone ink that matches a corporate colour. Occasionally additional printing plates might also be added to print spot colours. Together these colours combine to create a full-colour print. This means that the artwork is separated onto four different printing plates and each plate prints a specific single colour – cyan, magenta, yellow and black (CMYK). Generally the printing will be done out of the standard four-colour process. The inked image is transferred from a printing plate to a rubber blanket and then the image is transferred again to the paper. In a nutshell litho printing uses wet ink and printing plates whilst digital printing uses toners on a press similar to a giant office printer! Digital printing is more suitable for shorter runs and litho printing for longer runs. What is best for your job - litho or digital printing?
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