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FM FM network troubleshooting question and answer

Mar 14, 2019 Leave a message

FM FM network troubleshooting question and answer

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Q1, why do you want to go through the network?


A1. In the printing project, it is rare to display different thicknesses of thick and dark ink in the same imprinting. Therefore, when you want to express the shade in the same shade of ink, the printing of the early banknotes uses the gravure to engrave the lines. Density to express the shade and shape, but this process is time-consuming and expensive, so the use of neatly arranged ideas, the difference between the size of the point to express the shade of the network technology, is a fast and practical traditional AM AM network technology, it is taking pictures Plate making technology has been used for more than 100 years.


Q2, 150 line, 175 line outlets, how is it calculated?


A2. In the world, the vast majority of AM outlets are counted in a number of lines per inch. Only Germany occasionally calculates how many lines per centimeter. 150 lines means that there are 150 × 150 lines per inch = 22,500 outlets. The larger the number, the more points, the more difficult the printing, the finer image quality can be expressed under good paper printing conditions, and the number of lines using 300 lines or more is very Close to the feeling of continuous adjustment, on the contrary, the thick paper will use the number of thick lines.


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 the size of this point to account for the area in its 100% square and determine its percentage. The minimum point and maximum point value for printing are determined according to the results of printability. The fine mesh has a narrower range, while the coarse mesh has a wider range, but various types of paper are printed on the print. There will be different expressiveness. For example, in the 175-line advanced printing, it is usually about 3% minimum and 96% maximum. If it is small, it will not be significant.


Q4, what is a square point? What is a chain point? What are the advantages and disadvantages of each?


A4. square point and chain point are the shape of a circular point at the minimum or maximum point, and the shape is different between 30 and 70% (especially at 50%). A square such as a black and white pattern of the checkerboard is presented; the chain points appear as a chain. The dots are connected back and forth, but the left and right are not connected, and the narrow is like the distance shape of the chain waist. The square point has a sharp and powerful picture. The middle part of the square tone will be heavier and should be used as a metal industrial product. The version of the chain point should be smooth and smooth, so it is suitable for skin color or suppleness.


Q5, what is the FM network? what is the benefit?


A5. FM frequency modulation network is a fixed distance point size representation mode relative to AM AM network technology, and instead use finer (such as 2400dpi, 3600dpi) 11μ and 8μ fine points, with different parameters of random lines, Therefore, the CMYK four colors that can avoid the AM network must have the wrong network problem with different cable angles, and the resolution is better, so the four-color, six-color, seven-color, and eight-color printings do not have to turn the angle to avoid the wrong (collision) network. In the case, it can achieve the level of detail of the AM network with a low-resolution file size of about 50%, that is, the particles with more fineness can express better resolution, 2400dpi is the common type, and 3600dpi is difficult for printing. Not commercialized.


Q6, what are the disadvantages of  FM FM?


A6. The first generation FM network light department roughening phenomenon is serious, the second generation is improved a lot, but in the end, the light department and the flat network are slightly inferior to the AM network. Because the FM frequency modulation network is very thin, the CTP plate and the general printing plate should still be careful about the exposure and development effects. It is also very sensitive to dust. The printing pressure should be correct and the dot should not be increased too much. A slight tremor will also make the version change a lot. The percentage of the dot points of the FM FM network is difficult to visually evaluate with a magnifying glass.


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


A7. FM FM network is suitable for the thick texture of the image margin, high sharpness, such as steel, metal, rock, oil painting and rich color landscape figures, as well as mesh fans, air-conditioning, bicycles, jewelry, text and fine pictures, etc. The use of 2400dpi has the expressive power of the AM300 line.


Q8, what is the picture of FM FM network not applicable?


A8. FM FM network is not suitable for light-tone and smooth pictures, such as the scenery with morning fog, white light skin or no texture, flat net and so on.


Q9, the small file screen taken by the digital camera, FM network has performance benefits?


A9. FM FM network can have more than one area of analytical performance of AM over the network, even 180dpi has a resolution of 300dpi.


Q10, in comparison, is the AM network nothing?


A10.  AM networks are recognized in the traditional working environment and operators, and the printing on the flat screen, light color and textureless flat adjustment has excellent performance, especially the chain network will be better.


Q11, printing on FM network, will it be more expensive?


A11. Basically the material process changes are small, but its software is slightly more expensive, the attention of plate printing must be strengthened, and the printing conditions are more selective, and the printing plate will cost 10 to 20% more. Estimates of 15 to 25% more are appropriate.


Q12, FM FM network future prospects?


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

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