The hottest new technology of color FM screen prin

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New process of color FM printing

in recent years, color step tone printing technology has been widely used, from the color portrait on the round neck to the color picture of various light boxes, which can be often seen in the streets. In the innovative development of printing technology, all manufacturers have accumulated some experience and made contributions to promoting color step tone printing technology. Judging from the trend of the whole printing industry, the development speed is gratifying

there is no end to learning, art and the continuous improvement of printing technology. At present, the color tone printing plate still uses the traditional addition method with low investment cost, and the picture reproduces the depth and depth of the original from points with equal distance and different areas. Due to the improper stacking angle of the neatly arranged points or the angular changes crisscross with the silk, moire lines that affect the image quality often appear, which makes the printer a big headache. Of course, moire can also be avoided if the number of wires matches the number of screen lines. The moire problem has been discussed in many articles in the journal silk printing: last May, the delegation of China silk printing association to Europe brought back some printed products from Europe and re listed the logo of A.B.C mound. According to the analysis, these products have adopted the new process of frequency modulation, and the pressure of the accumulator must be ensured to work normally, which has produced a very excellent effect. The printed copies are very similar to the originals, It can reproduce the color and level of the original, just as rongbaozhai's Woodcut watermark traditional Chinese painting can reach the level of authenticity

what is FM plus

guanzhixiang, the director of Beijing Xinhua color printing factory, wrote the article "new technology of color FM and high fidelity plate making", which said that the traditional printing technology is to change the depth of color into points of different sizes, which is a method of amplitude modulation. The technology of frequency modulation points is to express the density by the density of points, which is a method of frequency modulation. This paper summarizes six advantages: first, the image with frequency modulation is lifelike, and its color reproduction range, printing density and image definition are better than those of traditional products; second, the scanning time is shortened, which significantly improves the efficiency of plate making; Thirdly, moire can be avoided, because the point distribution of frequency modulation is irregular and has no fixed angle. It shows the intensity of color, the contrast of light and shade of layers and subtle levels according to the value of point density, so moire will not appear at all for all kinds of color overlap. Fourthly, the high definition of reproduced image is the biggest feature of frequency modulation processing. It has the best reflection on the shoulder and the middle tone level, which is better than the traditional electronic compactness, and improves the smoothness and fineness of the product; Fifthly, low resolution can be used to output high-quality images; Sixthly, it can be applied to the reproduction of traditional Chinese painting to solve the problem of moire in more than four colors, such as six to eight colors, so that the quality of printed traditional Chinese painting can reach a new level

FM plus technology has been applied to the color desktop printing (color DTP) system, which was jointly developed by Peking University Founder group company and Beijing Xinhua color printing factory. It was checked and accepted by the publication administration in May, 1994, and has been put into productive operation in many printing plants across the country, achieving good social and economic benefits. All the problems mentioned here are low industry concentration. Although the new technology belongs to the scope of lithography (offset printing), it is also closely related to silk printing. Because traditional dot printing has been applied in printing, similarly, FM dot technology can also be applied to silk printing, and its advantages should be the same as that of lithography. The printing products brought back from Europe can be used for reference to improve the level of domestic printing technology

On September 10, 1996, some members of the Lao Yin Association in Beijing were invited to Bazhou Shengfang Red Star silk printing factory to visit and have a discussion. Everyone appreciated the preparation of women's fashion drawings of the first successful large format color tone printing work. The factory only completed the trial printing work in a few months, and the printed samples were colorful and accurate, which was praised and admired by others. In Shunde, Guangdong Province, in the south, color step printing products for the first mate's face were printed about seven or eight years ago. At that time, landscapes, fruits and other landscapes were mainly used. Now, products in the north have more difficult character pictures, which makes printing products more abundant. Whether in the South or the north, large format printing adopts the traditional processing technology, but the quality of these products can be comparable to offset printing, and some special effects are better than offset printing

at present, although the domestic color tone printing products do not adopt the FM plus new technology, from the perspective of the development momentum of the printing industry, it is likely that the FM plus new technology will be applied to fine printing products soon. This is an optimistic prediction, and it remains to be seen whether it is correct

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