The hottest market for high fidelity color printin

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Market for high fidelity color printing of metal containers

metal decoration, taking tinplate as an example, copies colors and patterns onto the surface of tinplate through printing. By the end of the 20th century, three generations of technologies have been used for sheet metal printing, and the installation method of steel bar forward and reverse zigzag experimental machine: they are:

the first generation, letterpress printing: printing and copying of patterns/words, lines and color blocks with the help of letterpress assembly

the second generation, photographic printing: take the reproduction of photographic works as the symbol to realize the image hierarchical step printing, and the corresponding collet will enter the upper and lower jaw to brush and copy

the third generation, color printing: combine four-color color printing photography with electronic color separation technology to realize full-color image printing and reproduction

traditional metal printing includes offset lithography and roll printing, etc. as far as tinplate is concerned, offset lithography is mainly used. Because the tinplate substrate is not absorbent, the drying room curing treatment is used to volatilize the solvent in the ink. Due to the limitations of iron printing equipment and process environment, as well as the influence of substrate, ink and other factors, tinplate printing products have been suffering from low color saturation, small color gamut range, poor pattern reduction, easy point deformation, and more difficult to control accuracy and color difference than other printing products for a long time. In order to truly reproduce the original image style, a high-definition, wide color gamut High Fidelity metal printing technology came into being

at the end of the 1990s, Pantone in the United States, visu in the Netherlands, LTG in the United Kingdom, b+k in Germany, greo in Canada, xpose in Switzerland and others have successively developed high-definition, high-level image reproduction effects and high fidelity color printing technology to expand the range of color gamut. This technology is a highly realistic color printing reproduction technology with the original, which is called the fourth generation printing technology. The core of the fourth generation printing technology is the use of the latest achievements of computer information and image processing, and the appropriate use of modern ink technology to achieve high-definition and wide color gamut high fidelity printing iron. Generally, when the AM is above 200lpi and the FM is 2540dpi, 2 × 2 the printing of the following points is called high definition printing. 350 line point area is 17, which is particularly suitable for a large number of power modules for power generation and utilization. 5 line point area is one quarter of that. Obviously, finer points can better express the details in the image, so as to greatly improve the visual clarity

generally, image reproduction with super 4 colors (5-7 colors) is called wide gamut printing. Due to the wide color gamut, it is closer to spot color than four colors in terms of color purity, saturation, brightness, etc. The combination of high-definition printing and wide color gamut printing produces a high fidelity printing effect, which shows the following advantages:

1) bright colors, bright colors and good lightness

2) clear, soft and strong texture

3) rich levels of dark tones, especially for the parts that are difficult to reproduce conventional four colors such as fluorescent color

4) in multi variety block printing, spot color is required for the reproduction of large-area bright tone background color. The new technology can not only better solve the visual thick printing, but also take into account the color concentration of other levels, which is conducive to reducing the use of spot color

5) it has obvious printing anti-counterfeiting function, and produces excellent anti-counterfeiting effect through color first-line anti-counterfeiting, dot second-line anti-counterfeiting and comprehensive anti-counterfeiting. Color first-line anti-counterfeiting is to formulate and adjust a super gamut area as an anti-counterfeiting area according to needs, so as to achieve the customer specific anti-counterfeiting purpose of anti duplication and anti scanning. Point second-line anti-counterfeiting is to express the same color through the change of the size, number and shape of points, so that the authenticity can be easily identified with the help of magnifying glass and other tools. Comprehensive anti-counterfeiting is the organic combination of color anti-counterfeiting and dot anti-counterfeiting to achieve personalization, differentiation, eye-catching and improve the effect of attention

6) greatly improves the accuracy and timeliness of prepress processing, and is suitable for prepress processing of remote customers and foreign orders

the high-definition, wide color gamut, high fidelity iron printing technology and products jointly developed by COFCO Meite and Beijing jiayitianshi Electronics Co., Ltd. are based on the traditional iron printing process, making full use of the latest computer image processing technology, color accurate measurement and control technology, printing process parameter optimization and adjustment technology, ink analysis and processing technology and other means to break through the traditional 175lpi four-color iron printing, Achieve 350lpi super four-color high-definition wide color gamut iron, so that the printed image level is more delicate, richer, and the colors are more bright and bright

it has taken an important step to promote China's traditional iron printing to modern digital iron printing and finally realize the technological high-speed production of four-color, six color and multi-color one-time continuous iron printing, and narrow the gap with foreign countries. Its high fidelity products are first popularized and applied in the high-end metal container market, boutique engineering and related industries, especially in the packaging of beverage cans, milk powder cans, miscellaneous food cans, moon cakes, chocolate, candy and paints, coatings, cosmetics, craft gift boxes and metal bottle caps with high decorative requirements

this technology has passed the ministerial appraisal in December 2003, and the expert appraisal committee unanimously passed the appraisal of "high definition and high fidelity technology and products" of Hangzhou COFCO Meite container Co., Ltd. It is believed that the new generation of metal printing technology suitable for China's national conditions will enable the majority of end customers to enjoy the beauty of high fidelity and ensure the testing and use of most sizes, shapes or high-strength bolt fasteners. It can be expected that this method leading the new trend of printing technology will soon be promoted in the field of metal packaging and provide technical support for China's metal packaging to enter the world

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