Composition and advantages and disadvantages of FM FM network

Q1. Why do you want to cross the net?

A1. In the printing project, there are seldom in the same embossing, different thick and dark ink layouts appear, so if you want to show shades of light in the same shade of ink, the printing of early banknotes is to use gravure to sculpt lines. Density to express shade and shape, but this process is time-consuming and expensive, so the use of neatly arranged ideas, to show the shade of the difference in the size of the dot network technology is fast and practical traditional AM AM over the net technology, it is in photography Platemaking technology has been used for more than 100 years.

How do you calculate the outlets of Q2, 150, and 175 lines?

A2. In the world, the vast majority of AM outlets are counted by the number of dots per inch. Only Germany occasionally calculates how many lines per cm. 150 lines means that there are 150×150 lines per inch = 22,500 outlets. The larger the number is, the more the number of points is, the more difficult it is to print, the finer image quality can be displayed under good paper printing conditions, and the number of lines with more than 300 lines is very good. Close to the feeling of continuous adjustment, on the contrary, rough paper will use a coarse screen.

Q3, how to calculate the percentage of outlets? What is the minimum and maximum percentage?

A3. The percentage is calculated by the area of ​​the point. Ask how much of this point is in the area of ​​its 100% square and determine its percentage. The minimum and maximum point values ​​used for printing are determined according to the results of printability. The range of fine meshes is narrow, and the range of thick nets is a little wider, but various types of paper are printed on the prints. There will be different expressions. For example, in the 175-line high-level printing, the minimum is usually about 3%, and the maximum is 96%. If it is smaller, then the significance is not significant.

Q4. What is a square point? What is a chain point? What are the advantages and disadvantages?

The two points A4, square points and chain points are in the shape of a circular point at the minimum or maximum point. The difference in shape is between 30 and 70% (especially at 50%). Show squares such as black and white lines on the checkerboard; chain points appear as chains. The dots are connected before and after, but the left and right are not connected. The narrow part is like the distance shape of the waist of the chain. The square-shaped picture is sharp and powerful, and the tone of the version will be heavier in the middle tone, and it should be made of metal industrial products; while the version of the chain point is smooth, it is better to do skin color or supple picture.

Q5. What is FM network? what is the benefit?

A5, FM FM network is relative to AM AM over the network fixed-point size expression, and switch to finer (such as 2400dpi, 3600dpi) 11μ and 8μ fine points, random parameters to do different density arrangement, Therefore, it is possible to avoid the problem of mis-alignment of the four-color CMYK of the AM network with different network line angles, and the resolving power is better. Therefore, four-color, six-color, seven-color, and eight-color printing do not need to turn the angle to avoid mistakes (collision). In terms of the situation, it can achieve a fine degree of AM network performance with about 50% of the low-resolution file volume, which means that the more detailed composition of the particles to express a better resolution, 2400dpi is a common type, 3600dpi due to printing difficulties Not commercialized.

Q6, FM FM network where the shortcomings?

A6. The coarsening phenomenon of the first generation FM network optical department was serious, and the second generation improved a lot, but in the end, the optical department and the flat network were slightly inferior to the AM network. Because FM FM network is composed of very fine particles, so CTP plates and general printing plates still have to be careful exposure and development, dust is also very sensitive, the printing pressure should be correct, can not make outlets rose too much. Minor tremors can also make the layout change. The percentage of outlets of FM-FM network is difficult to visually evaluate with a magnifying glass.

Q7, FM FM network for what kind of screen work?

A7, FM FM network is suitable for thick textures with high margins and sharp images, such as steel, metal, rock, oil paintings, and rich-colored landscape figures, as well as mesh fans, air conditioners, bicycles, jewelry, text, and fine images. The use of 2400dpi has the expressiveness of the AM300 line.

Q8, FM FM network is not applicable to the screen?

A8, FM FM network is not suitable for light-colored and smooth images, such as the scenery has morning fog, white light-colored skin or no texture screen, flat screen and so on.

Q9, digital camera shoot small file screen, FM network have performance benefits?

A9, FM FM network than the AM network has twice the analytical performance of the area, even 180dpi has a resolution of 300dpi.

Q10. Does AM network have nothing to do with it?

A10 and AM networks have gained recognition in the traditional working environment and operators, and they have excellent performance in printing on flat screens and light-colored non-textured flat screens. In particular, chain networks are better.

Q11. Is it more expensive to print with FM net?

A11. Basically, the change of material process is small, but its software is slightly expensive. The attention of the plate printing must be strengthened, and the printing conditions are more selective. There will be 10 to 20% more cost on the plate, and printing More than 15 to 25% of the cost estimate is appropriate.

Q12, FM FM network future outlook?

A12, FM FM network in the future can be more smooth and no job content restrictions, under the use of CTP, the prepress limit will be less, so its printing will normally develop. In addition to four-color printing, when the performance of Hi Fi Color must use six-color or seven-color printing, FM FM network is more conducive to this development.