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chapter three: colour > colour in print - Pg. 104

design basics elements colour pre-press production finishing 12­25 basic terminology colour management colour correction creative colour colour in print colour on screen 74­77 getting the basics right tints and mixing colours 104­105 26­71 72­111 112­139 140­163 164­183 78­81 82­91 92­103 104­109 110­111 106­109 colour in print Before sending a design to print a designer can use a range of methods to ensure that the colours used will appear as intended. getting the basics right When work is sent to print, it is unlikely that there will be further opportunities to rectify mistakes. For this reason, it is vital that checks are carried out on some of the most basic elements. preparing colour for print On completion, the designer must carry out a number of pre-press checks to ensure clear communication between designer, client and printer. This is vitally important if the client is to end up with the work that they have been expecting. A designer must also review certain elements that may pose printing problems. The checklist below shows some common colour pitfalls when sending files to print. Innovative use of print processes that can help a designer get around the restrictions of a limited budget will also be discussed. printed pages and panels Printed pages (or PP) refers to the actual number of pages printed and not the number of sheets printed on. For example, a booklet made from four sheets with print on every side will have eight printed pages once folded. The key is to remember that one sheet printed double-sided is equal to two printed pages. The same rule of thumb applies to the use of panels, which is simply another way of folding a printed sheet. paper This dialogue box indicates paper not white, meaning that the item will not be printed but will appear as the same colour as the printing stock. Swatches Tint: 100 [None] [Paper] [Black] [Registration] C=100 M=0 Y=0 K=0 C=0 M=100 Y=0 K=0 C=0 M=0 Y=100 K=0 C=15 M=100 Y=100 K=0 C=75 M=5 Y=100 K=0 C=100 M=90 Y=10 K=0 before sending a file to print: 1 2 3 4 Delete all unused colours. Ensure all that you want to print in black is actually in black, not in registration, as registration will print in all plates. Ensure all that should be in registration is in registration, and not in black, as black will only print on the black plate. Ensure all spot colours are accounted for. If the job is printing with a special colour, all is well; if the job is printing CMYK only, then turn all spot colours to CMYK. Ensure all images are converted to CMYK and not RGB. This includes logos, maps, additional icons, for example. In certain circumstances the printer may prefer the files to be left in RGB for them to convert themselves to match a specific profile, but you can't assume this. Ensure you are clear that your colour-fall matches the printer's expectations. If the printer is expecting a four-colour job then supplying a file with special spot colours will cause confusion. Ensure your imported swatches are of the right value, if the job is being printed on uncoated, then set any spot colours as uncoated, and not coated or unspecified. 5 6 7