Some points in printing design

1, the graphics color mode must be CMYK or grayscale.

2, if you need a large area of ​​pure black bottom color map, it is recommended to use K: 100, C: 30, this kind of black printing out than the black one, but also because the existence of the blue version can make up for the false printing of the black hole . Of course, this value is not fixed. I once made an off-the-post poster with K:100, C:80. This is because the area is too large and the press speed is so fast that it is difficult to put the color in real terms. So the value increases accordingly. Also, if there is a warm color pattern on the entire image and the edges are feathered, or there is warm and transparent, etc., then the value is adjusted according to the actual main warm tone, such as K:100, M:60, Y:70, This pattern transition is very comfortable, not as strange as K:100. This phenomenon can be seen in the PHOTOSHOP trial.

3. Anti-white or anti-white thin lines on the noise pattern. When choosing the font (or the number of pounds of the line), be careful not to use overly detailed fonts such as imitations, thin circles, etc., and try to use bold fonts such as bold fonts and librarians in order to avoid inaccurate layouts. Text or lines cannot be seen clearly. Case.

4, do a small tag, etc. need to roll box, punching things, pay attention, try not to design the outer border. This is because if the layout is slightly misaligned when rolling boxes, there will be cases where one side is large and the other is small.

5, newspapers, adhesive tape printing design should pay attention to newsprint and adhesive tape are more ink, so, in addition to pay attention to the number of screens out of the film, we must also pay attention to, in the production of time to reduce the color, such as the newspaper In the manuscript, you need to see 30 shades of gray. Then when you make it, you set the grayscale to about 24, which is printed on some grey newsprint. The actual effect is equivalent to 30 shades of gray. (Double) Adhesive paper is slightly whiter than newsprint. The adjustment of color can be lower than that of normal copperplate printing, and it is higher than the newspaper draft. It depends on experience and feeling.

There are so many aspects involved in printing that they cannot be listed one by one. Now I can think of the more error-prone ones. I hope experts and experienced friends correct me and supplement them.

I would also like to say a few words to the newcomers. Don't immediately ask questions about any problems that arise. Think about them first. See where the problems lie. If you have any questions about production or craftsmanship, you can first browse the “Newbie Must See” and “Essences” can also be searched for in the corresponding design and printing websites, and they should always keep in touch with the next family (printers, plate-making companies, inkjet companies, card production companies, etc.) to understand the process flow, process requirements, equipment performance, etc. Experience is accumulating. It is not reading or listening to others. If you do not contact, it will always be on paper and it will be useless.

Poster imposition

4 open poster size
a. Formula formula for opening the paper for seniors:

Large size paper size: 1194mm x 889mm; After the burrs size: 1190mm x 885mm

Grand opening is: 595mm x 442mm

Maximum printable area: 591mm (each side minus 2mm burrs when cutting the finished product) x 430mm (except for each side to subtract the 2mm burrs when cutting the finished product minus 8mm bite bit, this bite The position of the mouth is different on some printing machines, but the four boot is usually 8mm.)

b, algorithm formula of positive four-sheet paper

Regular paper size: 1092mm x 787mm; size after cutting off: 1088mm x 783mm

Four is open: 544mm x 391mm

Maximum printable area: 540mm x 377mm (explained above)

Note: Flat copper plate paper edges are generally cut 2mm on each side

Make an imposition of a senior poster

Because posters are generally based on pictures, I'll use a picture here as an example.

Import the picture into (Ctrl+H) CorelDRAW. After importing the desired picture to CorelDRAW, press Enter to place the picture in the middle (as shown).

Here we have posters in the middle of the picture, with 20mm white edges around each side, so we can bite the mouth (by biting the mouth means putting the bite bit on the white side, no bite bit) The size of the poster can be made into 438mm x 590mm.
Set the page to 438mm x 590mm in CorelDRAW (pictured).
Double-click on the rectangle tool to draw a box that is the same size as the page, filled in white, and remove the outline. This is the poster's page (pictured).

Select rectangle box and picture, group (Ctrl+G) click.

The next step is to draw a corner line.
Set the page to 448mm x 600mm and use hand-painted tools to make a 5mm x 5mm corner line (pictured)
Press Ctrl+A, as shown in the figure, put the corner line in the upper left corner of the page (pictured),
Press the "+" key on the keypad to copy the corner line and use the same method to place the corner line in the upper right corner of the page.
Also use the same method to put the corner under the page.
Actually the corners are still a bit behind the actual size, because the poster is surrounded by white (paper), so a 1mm is enough. If the cut is not enough, it is fine to let the cutler cut inwards.
Draw a middle line as shown below.

In the same way as putting the horn line, put the middle line in the middle of the line.湎呓岷 幌 幌 幌 nbsp nbsp?nbsp;nbsp;
The fill outline color is C100 M100 Y100 K100 (pictured)
Here to tell you the most convenient way to fill the corner color is to fill in the "registered colors", so that you are not afraid to forget to fill in a little color, which is the most practical in more than four-color version (pictured).
Finally, place color strips according to your own preferences (not much to say here). Don't forget to stamp on your mouth, color, size, etc.
So the imposition of a poster was completed

Four-color print printing to do white version?

There is a situation where, for example, printing on the Yellow Pages phone book requires printing a set of white (a white color patch) containing the area to be printed and then printing four colors, of course, on other colored materials. Printing, but do not want to fold four colors, also need to print white.
If you only have white areas on the printed area, how do you design white plates? Four-color printing can be used to separate out the channel, out of the white version to do it, if the printed body is solid, the white version to paint it? Is there an easy way?
Create a black version of the same area as the printed one. Mark it as a spot color white. Print first and then print white and print four colors. The white version is actually a spot color version with the same area as the one you need, CMYK+ spot color white. For example, if you want to write on a cement wall, you usually need to apply a layer of white paint first, and then use other colors. The reason is the same.

Film common sense

The film is black. The film's corner usually has an English symbol. It is the film number of the film. It indicates which of C, M, Y, and K is the film. It is one of the cmyk (or spot color). , which means the film is what color output, if not, you can see the angle of the hanging net to identify what color. The next stair-like strips are used for dot-density calibration. In addition to seeing whether the dot density is normal or not, one is to see CMYK, the color bar is C in the lower left corner, the color bar is M in the upper left corner, Y is in the upper right corner, and K is in the lower right corner, so long as the color printing factory You know CMYK. That is to say, in order to facilitate the detection of the film developing concentration, the film sheet has a color number on the corner. The number of colors printed depends on the screen of each film. The film outlet on the film is to tell you that "here there is a certain degree of color." For example, the general text version is only black, and there is only one film in the print. If you print in red ink, the printed word is red. A film film represents only one color, printing color, at least four film films, representing C, M, Y, K 4 colors! Can also be four spot colors, spot color film is a separate file output into K version. Next to the color code can not show the specific value of CMYK, but used in comparison, to check whether the film meets the requirements. Some people are accustomed to drawing corner lines (cutting lines, register lines), and then using their own solid colors to mark the names of each version. For example, marked with C, M, Y, K, special silver, and then fill in the blue, red, yellow, black and spot colors on the spot color, so that the film came out on the label and is particularly intuitive. The size of the color standard is 10*5mm, and the English letters of the paper-colored CMYK are printed, and the color blocks correspond to the names of the colors. The printing workers can see the edges of the film. In general, the film's dot is fixed, just like the yellow version's screen angle is 90 degrees. There are exceptions, if the yellow expression of the image is concentrated in the range of 90 degrees, then the yellow can not use the 90 corner. Otherwise, the trace of the hanging net is too obvious!! As a general rule, out of a color, you should hit a color bar , In turn, to check that in the process of coloring non-forest, the drying process on each density step is very clear, usually four color bars, and the arrangement is very neat.

Most colors are based on the combination of these four colors. Each film is black, but the colors they represent are different. C, M, Y, K, look at the ratio, and then print the four-color ink.

Outdoor light box advertising features and production techniques

The pattern is an important "visual communication element" of print advertising, and color is superior to other elements in visual communication. With the rapid development of electronic platemaking and printing machinery, advertisements are springing up. Advertising for outdoor light boxes as semi-permanent print ads, thanks to the use of auxiliary light and transparencies, makes it possible both during the day and at night. Can play the following role: to attract the attention of passers-by; enhance the realism of the article; rendering product breath, to induce consumers' desire to purchase; strengthen the special impression of advertising.

In the design and production of outdoor light box advertising screens, in order to recover the sense of reality and artistry, color printing or photo printing is often used; light boxes are also produced on the special paper, plastic sheet (film), and light box cloth by means of screen printing. Screens, and selection of manufacturing methods and materials based on their cost of replication, weatherability, and other requirements. This article discusses the application of its production technology on the characteristics of the light box advertisement, the main constituent materials and the pattern production process.

First, the characteristics and types of outdoor light box advertising

Lightbox advertisements are also known as "light box posters" or "night-night posters." It is called "semi-permanent" street art abroad. Outdoor lightbox advertising is distinguished from other types of advertising. Its characteristics are as follows:

1. Large screen:

A large number of print advertising media are used for indoor or small-scale communication with a small format, while outdoor light box advertisements display advertising content through door headings, bulletin boards, and pole light box paintings. Compared with other graphic advertisements, the illustrations are large and the fonts are large and striking.

2. Farsightedness:

The function of the outdoor light box advertisement is to convey information to outdoor people and distant people through natural light (daytime) and auxiliary light (night). The advertising works have strong far-sighted effects, and people who are right in the fast pace, high efficiency, and hurry of modern society pay attention to them at a distance.

3. Wide content:

In public transportation, transport, security, welfare, savings, insurance, taxation, etc.; in commercial products, businesses, tourism, services, etc.; in culture, education, art, etc. Play a role.

4. Concurrent:

There are many forms of display, with both text and color features, from product trademarks, product names, physical photos, colors, business intentions to culture, economy, customs, beliefs, and norms. By conceiving and