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Categories: Book printing >> Printing Blog
Reproduction of Illustrations for Book Printing Jobs
Origin:Image Printing  Data: 4/9/2011  Keywords: Illustrations for book printing jobs

Illustrations for book printing jobs may be prepared or sourced in digital form and can be provided to the typesetter as EPS (encapsulated PostScript) files or as TIFF (tagged image file format) or JPEGs (joint photographic experts group) for half-tones. Non-digital originals of illustrations are converted to digital form. This can be done in-house, using an application such as Adobe Photoshop or by a professional repro (reproduction) house, the typesetter or the printer to sizes specified by the designer.

Book printing presses cannot reproduce directly the continuous shades or tones of colour appearing in photographs or pencil drawings, thus the half-tone process is used. The image of the black and white or colour original is screened, i.e. broken into a series of dots of varying size with larger, closer or adjoining dots in dark areas; and smaller, further apart, or no dots at all in light areas. When printed, the dots create the illusion of continuous shades. Printing a full colour image requires a four-colour process. The image needs to be broken down into four basic colours: cyan (blue), magenta (red), yellow, and black (known as key). These colours, used to put ink on to paper, are called CMYK, or process colours, and are subtractive primaries. Red, green and blue (RGB) are the additive primaries, used in TV screens and computer monitors. They cannot be used in printing. Color separation can be done using a scanner, or a digital image can be saved as CMYK in an application such as Adobe Photoshop. In order to print a four-color image, you ideally need a four-color press, capable of printing all four colors in one impression. It is possible to print a four-color image on a two colors press, but this is less efficient way and can cause quality problems. Various kinds of proofs are submitted to the publisher before the final digital file of the illustrations is accepted. If necessary, books can be printed in six colors. This process was used, for example, for Kevin McClouds Choosing Colors (2007), where orange and green inks were printed after the CMYK to create a six-color job.

Hardcover book printing process requires much economical book printing services in China, but now you get it -- Image Printing Packaging Ltd comany.

Hardcover book printing processHardcover book printing process



 
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As a professional book printing factory in China, Image Printing Packaging Ltd focus on book printing and packaging printing mainly for oversea and domestic customers. We are located in Shenzhen city, the book printing and packaging printing industrial center of China and even worldwide. Please be kindly note we offer a wide range of professional customed printing service with aggressive prices
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