The hottest flexographic printing technology enter

2022-10-15
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Flexographic printing technology entered a new era

a century ago, flexographic printing was only a very insignificant and insignificant printing process, which was also called "aniline printing" at that time, because aniline ink was used at that time. With the application of new materials and the improvement of printing conditions, flexographic printing technology has risen rapidly. It completely abandoned aniline ink and was replaced by solvent based ink and water-based ink. The quality of printed matter has been significantly improved. Today's flexographic printing process is not what it used to be. It has developed into another major printing process after embossing, offset printing and gravure printing. In North America, flexographic printing currently accounts for about 22% of the total printing market, while in the packaging industry, flexographic printing has become the leading printing process, accounting for two-thirds

according to the prediction of relevant people, flexographic printing will still maintain a good growth momentum. In the printing market of corrugated boxes, labels, flexible packaging, paper bags and folding cartons, flexographic printing has grown rapidly, and its market share is rising. Most of its businesses are snatched from the traditional embossing, offset printing and gravure printing markets

corrugation roller technology is leading all the way

with the improvement of corrugation roller processing technology and accuracy, the quality level of flexographic printing process is also constantly improving. Ten years ago, the number of lines of the wrinkle roll was generally limited to 360~440 lines/inch, but today it has reached 800 lines/inch, and it may be higher. The higher the number of roller lines, the thinner the ink layer transferred, so you need to use ink with higher and stronger hiding power, and you can't dry on such a fine roller, otherwise it will cause paste

in addition, flexographic printing has also promoted the development of high-speed flexographic printing machines. However, this has some difficulties for flexographic printing systems using water-based inks, because high-speed printing machines require a high concentration of pigments in the ink, and also require the ink to have good transfer performance

The emergence and development of CTP technology has brought great changes to the flexographic printing industry and greatly improved the quality of flexographic printing products. Using laser technology to directly image and make plates on photosensitive polymer plates, combined with the use of closed doctor blade and ceramic roller, has become a major development direction and trend of flexographic printing technology, and is mainly used in central embossing (satellite) printing machines

uv ink technology is unique

in flexographic printing, UV (ultra violet) UV drying ink began in the mid-20th century, but it has not made great progress until nearly two decades, and will continue to maintain an amazing growth rate. In the flexographic printing of trademarks and labels, almost a quarter of the business is printed with UV ink

uv ink is pollution-free, and there is no problem of volatilization of water and solvent at all. There is no volatilization of solvent in the printing process, so the printed matter has bright color, small dot expansion rate, good reducibility, and the quality of printed matter can be comparable with offset printing products. Therefore, the application of UV technology makes flexographic printing have the strength to compete with offset printing

in wide flexographic printing, there are few successful examples of UV ink, mainly because the application scope of wide flexographic printing machine is mainly in the food packaging industry, and people are very concerned about whether UV ink will pollute food

recently, benzene was found in cationic UV inks in Europe, which further attracted people's attention to such problems. Moreover, some UV ink suppliers have abandoned the cationic UV ink business and no longer operate cationic UV ink. Cationic UV flexographic ink is very suitable for the printing of wide web materials that require high UV radiation resistance, such as fertilizer bags

water-based inks are widely used

in flexographic printing, water-based inks have the widest application range and occupy an absolute advantage. For example, water-based inks are used in the printing of corrugated boxes, paper bags, paper products, milk boxes, etc. However, in the printing compounding of plastic film, although the growth rate of water-based ink is relatively slow, it still maintains a certain growth trend that is the common deformation that people lose their original elastic properties up to now. In addition, water-based inks are expected to see new growth points in folding carton printing and some gravure printing businesses at present

in recent years, the voice of environmental protection is very strong, and the results are processed, printed and recorded. At present, governments of various countries are also continuing to take measures to protect the environment on which human beings rely for survival, and have successively formulated a series of laws and regulations to strengthen efforts to control and reduce the emission of organic volatiles; Environmental protection organizations are also strictly limiting the emission of ozone, which will eventually affect the emission of VOC (organic volatile matter) into the atmosphere. Such measures have promoted the promotion and application of water-based inks

in the development history of the printing industry in recent years, the rise of flexographic printing technology is one of the most eye-catching events. In the face of various challenges (such as production costs, government administrative regulations, etc.), we must adopt new technologies, find our own way to draw lessons from international advanced experience according to needs, and continue to improve and develop with the adoption of new technologies. Flexographic printing is a typical example. The disadvantages of flexographic printing, such as slow drying and poor gloss, have been successfully solved gradually with the application of new materials and new technologies. Today's flexographic printing is very different from the past. Due to the advantages of high quality, high efficiency, low cost and no pollution, flexographic printing has a very broad application prospect

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