Common sense of printing color

In Illustrator, process colors can be designated as global or non-global colors.

Non-printing colors do not automatically update the entire document when editing. By default, mixed color is not the color of the whole station.

The global process color is linked to the colors in the palette, so if you modify the color of the global process color, all objects that use the color will be updated. Printing colors globally makes it easier to modify the page color scheme, and there is no need to find and adjust every object to which colors are applied.

This is especially useful in standardized and production-oriented documents such as magazines. Using the Color Options dialog box, you can change a non-global process color to a global process color.

Select Process Color in the Color Mode option, and then select the Global option in the Color Options dialog box to change the non-global process color to a global process color.

2. Common sense of printing

1. General paper printing can be divided into black-and-white printing, spot color printing and four-color printing, and multi-color printing is more than four-color printing.

2. Patterns and characters printed on objects and metal surfaces can be divided into screen printing, pad printing, hot stamping (gold and silver) and flexographic printing (plastic products). 3. Traditional printing plate-making generally includes offset printing PS plate (making graphic information into film) and paper plate light printing (also called quick printing).

With the development of the market, the pace and changes of business activities are getting faster and faster, and the immediate business needs have made great changes in printing technology. Commercial short printing and digital commerce express printing CTP came into being (direct printing without plate making).

4. Text typesetting documents can be lightly printed in paper version (zinc oxide version) for short versions with low quality requirements, which can save printing costs, reduce printing costs, save time, and be fast and efficient. According to the size of paper, there are usually three types: large format, medium format and small format.

For 787* 1092 paper, 12 is a large format, 16~36 is a medium format, and 40 is a small format, but books with characters as the main content are generally medium format. Folio shapes are rectangles with different proportions except 6 quarts, 12 quarts, 20 quarts, 24 quarts and 40 quarts, which are suitable for books with different properties and uses.

Normal size positive paper 787* 1092mm large format paper 889* 1 194mm folio number (positive) size unit (mm) folio number (large) size unit (mm) 2 folio 540*780 2 folio 590*880 3 folio 30. 590 6 open 360*390 6 open 395*440 8 open 270*390 8 open 295*440 16 open 185*270 16 open 220*295 32 open185 */ 95 64 folio 1 10* 145 Note: finished product size = paper size-trimming size Note: finished product size = paper size-trimming size (positive) size unit (mm) folio size (generous) size unit (mm) full opening 787 * 65438. 1 194 folio 540*740 folio 570 x 840 4 open 370*540 4 open 420 x 570 8 open 260*370 8 open 285 x 420 16 open185 * 260/kloc Kloc-0/8495mm 30% discount advertisement: standard size: (A4)2 10mm x 285mm general brochure: standard size: (A4)2 10mm x 285mm document envelope: standard size: 220mm x 305mm poster: standard size: 540mm x 380mm handbag. X 80mm letter paper and stationery: standard size:185mm x 260mm210mm x 285mm paper weight Common unit: GSM or gram/square meter. That is, the general color printing per square meter is: 128- 157g * * black and white printing: 80- 128g * * stationery: 70- 120g * * envelope: 100- business card:/kloc. 4 16-2000DL 2201kloc-0/0 is the same as the existing envelope No.5; No. ZL 230 120 is the same as the current No.6 envelope. Up to C5 229 162 is consistent with the current envelope No.7, and C4 229 No.324 is consistent with the current envelope No.9. Notes on the length and width of international envelope format standard code C6 162 1 14. The newly added international specification B6 176 125 is consistent with the current envelope No.3. No. DL 220 1 10 is consistent with the current No.5 envelope.No. ZL 230 120 is consistent with the current No.6 envelope.No. C5 229 162 is consistent with the current No.7 envelope.No. C4 324 229 is consistent with the current No.9 envelope to form a printing quotation (design and production fee)+proofing fee+raw materials (. )+plate making fee+machine making fee (printing, per order and per color)+post-processing fee (binding, laminating, punching, surface pasting, polishing, oiling, gold and silver ironing, punching, threading, pasting, lettering, etc. ) = Total cost Post-treatment technology has a very fine division of labor, which generally includes the following types: 1. Polishing and oiling can be divided into complete and partial polishing and oiling) 4. Special-shaped boring, bronzing (silver), convex 5. Surface pasting (generally refers to packaging cartons, high-grade picture books, book binding, brocade box processing, etc. ).

3. Knowledge of color printing

This involves too much, so it is not clear here.

You can say it briefly.

1. From the point of view of printing principle

There are many color modes, and printing is based on CMYK (corresponding to printing four boards of cyan, magenta, yellow and black; In photoshop software, the file color mode is CMYK, which corresponds to thinking through)

Conventional four-color printing, that is to say, all colors in the world are four-color superposition. Of course, if it can't be superimposed, print with spot color or 6-color or 8-color printer. ...

In ps, the value range of CMYK is (1 ~ 100). ...

I have something to do, (to be continued)

4. What is the common sense of printing?

You have mastered the following two courses, which are very useful, introduction to printing and printing colorimetry.

Introduction to printing: printing materials, printing colors, prepress technology, printing plate making, printing technology, post-press processing, special printing and digital printing, and quality control of printed matter.

Printing chromatics:

Light and color vision, color vision formation, basic properties of color, mixing law, CIE colorimetry system, color representation of color, light source colorimetry, printing color, computer color representation, color measurement and color management.

After studying, I will work for three years, either as a captain or as a production director, hehe!

Of course, the key points are: printing technology, color mixing law, printing color and quality control of printed matter.

I don't know if you are satisfied with this answer.

5. How to choose the printing color sequence

The color sequence of printing in flexography is not fixed, especially for multi-color screen printing, the following factors should be fully considered when selecting the color sequence of printing.

(1) printability. The drying speed of ink affects the overprint effect.

If the lower ink is moderately dry, the printing effect after overprinting is good; If the lower ink dries excessively, resulting in the phenomenon of "vitrification", then the dot of the upper ink will shrink after printing, or even cannot be printed at all, resulting in printing failure. (2) the change law of color.

Printing belongs to subtractive method, so the printing color sequence has little influence on high-key mixed color, but has great influence on dark tone. (3) the transparency of ink.

Ink has a certain hiding power, and overprinting of post-press ink on pre-press ink will affect the color rendering effect. (4) the characteristics of the picture.

Generally speaking, if the dot area is small, print first, and if the dot area is large, print later. Plates with main colors on the screen can be printed later or later.