The technology before imprinting is simple introductory tutorial

The friend that the technology before imprinting to be opposite does not know writes this tutorial, because him experience is still shallow, meet those who have some of not speak in detail and mistake go out for certain, the tutorial is draw up according to the most easy to read and understand character come. Do not know to be able to appear it seems that long-winded. The hope can be discussed together with everybody and rise.

The first part: Fundamental flow

My general explains relevant knowledge according to this flow below:
Manuscript - color separation stalks of grain - give phenanthrene forest - plate making - presswork.

The first: Manuscript
Manuscript is we want black-and-white manuscript, should need not I explained more.
We know, presswork to mention “ normally 4 kinds presswork ” this concept, because the color in presswork is,be plant by C, M, Y, K4 color place forms. By tens of thousands in different colour is differ by basis of these a few kinds of colour scale overlay, allocate and become. Its allocate a principle to wait with watercolour, soaked noodles made from beans or sweet potatoes identical.
The presswork that normally we contact, wait like book magazine, poster, become according to 4 kinds of superimposition. That is to say, pressworking in the process, bear imprint content (paper) pressworking experienced 4 times in the process presswork, presswork red of black, one defective goods, cyan, yellow. Superposition of 4 kinds of color after ending is together, made all sorts of facial expression on the picture.
Color separation
Color separation is one pressworks professional name, all sorts of gets on manuscript namely color that point to are decomposed for yellow, pinkish red, green, black 4 kinds of primary color; Presswork in computer design or planar blueprint resemble kind of software in, color separation works even if the colour mode changeover of the image scanning image or other origin is CMYK mode.
General scanning image is RGB mode, if want to presswork, must undertake color separation, cent is become yellow, pinkish red, green, black 4 kinds of color, this is black-and-white requirement. If image colour mode is RGB or Lab, there is K only likely when output (black) there is a site on edition, namely RIP (RIP is to use a computer image data to explain the data that is phenanthrene forest need, the explanatory language that its use is PostScript. PostScript is a kind of programming language, most apply to the image that print and character, no matter be in paper, film or immaterial CRT but. The jargon that uses nowadays is told, it is page description language. It and rolled out by Adobe 1985. ) when the explanation it is the color information explanation of image only gray.
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