[Printing Plant] 1. Format of the document

Most of the output centers now use the pspnt dot-separation output system, and some of them use Halikun or Israel's Sai Angel and other systems for central printing. But they all have one thing in common, supporting postscrit printer description files in central China. That is, the file material market with a suffix of .ps. Currently popular design software: Photoshop, pagemaker, coreldraw, illustrator, etc. all support PS printing and printing alliance. The s2, ps2, and ps files generated by some Founder software such as Founder Book Edition, Weisi, and Feiteng can only be output using pspnt, and other output systems do not support Central China. There are some other word processing software such as word, wps2000, etc. In theory, ps files can also be generated, and the printing factory can output film, but in fact, pre-press output must be carried out such as imposition, plus registration rules, cutting lines, etc. Some processing, and software such as word, wps2000 can be said to be powerless in this regard, especially color manuscripts, once done, and then post-processing, will bring great difficulties to the pre-press output staff printing market. Therefore, try to choose a series of professional design and typesetting software material market such as pagemaker.

2. Central printing on the format and accuracy of the pictures.

Modern offset printing uses offset printing (four-color overprint), that is, the picture is divided into four colors: cyan (C), product (M), yellow (Y), black (four-color dot film, and then printed into PS version After printing four times on the offset press, it will be the color printing technology after printing out. Therefore, the printing pictures are different from the usual computer display pictures. The pictures must be converted to CMYK mode, not RGB mode or other modes. Technology. Because the output is to convert the picture to a dot, which is the precision dpi, the theoretical accuracy of the picture for printing should reach 300dpi pixels. Therefore, the picture you usually use cannot be based on the display, not because the picture passes through acdsee or other software. Seeing it is very beautiful, it is also very beautiful after zooming in, it can be used for printing. It must be opened by photoshop, and the size of the image is used to confirm its true precision printing tool. For example: a picture resolution is 600600dpi pixels, then, Its current size can be enlarged to more than double the use of the printing alliance. If the resolution is 300300dpi, then it can only be reduced or the original size can not be enlarged. If the picture resolution is 7272dpi Pixels in inches, then you must reduce its size, (dpi accuracy will be relatively large), until the resolution becomes 300300dpi, you can use the printing alliance. (When using this function, redefine the pixels in the image size option in photoshop Set as no printing tool.)

3. About the color of the picture

Regarding some professional terms such as overprinting, overprinting, hollowing out, and spot color on printing, you can refer to some related printing basic knowledge. I will not explain the printing technology one by one here. Just talk about some common sense equipment consumables that you must pay attention to. One is the hollowing out problem. For example, if a line of blue characters is pressed on a red bottom plate, then on the red version of the film, the position of the blue characters must be empty printing technology. Conversely, the blue version is also a printing tool. The second is the problem of overprinting. For example, if a line of black characters is pressed on a red base plate, then on the red version of the film, the position of the black characters should not be hollowed out. The third is the four-color character problem in central China. This is also a relatively common problem printing technology. Before exporting, it is necessary to check whether the black characters in the publication file, especially the small characters, are only on the blackboard, and the printing technology should not appear on other three-color editions. If this is the case, the quality of the finished product will be discounted. When RGB graphics are converted to CMYK graphics, black text will definitely become a four-color black printing market. It must be dealt with before it can be exported to Central China.

4. Quotes about the accuracy of the printing plant for netting materials at the time of output.