Application status of the hottest laser technology

2022-08-21
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The application status of laser technology in printing

laser technology is mainly used in two aspects of flexographic printing: laser engraving ceramic roller and laser direct plate making. The computer system of electronic experimental machine has greatly improved and improved the quality of flexographic printing through the application of laser technology in the field of flexographic printing. In the American FTA's quality evaluation this year, some printing lines have reached 200 lines/inch. In addition, according to the data provided by laserlife in Australia, they use the latest Hercules laser engraving equipment, which can engrave 2000 lines/inch of embossing rollers, and 1% of the points of 200 lines/inch plates. Laser technology not only enables flexographic printing to achieve high-quality printing quality, but also uses laser engraving seamless plate sleeve technology, which can also make flexographic printing more widely applicable. The application of laser technology in flexographic printing makes the quality of flexographic printing closer to offset printing and gravure printing, which lays the foundation for flexographic printing to eventually occupy a dominant position in the packaging printing industry

laser technology was first used in the manufacturing process of ceramic corrugated rollers. Laser technology realizes the manufacturing of high-speed corrugated rollers, improves the ink transfer quality of corrugated rollers, and greatly prolongs the service life. Domestic and foreign flexo printing machines are equipped with ceramic rollers to improve the grade of the machine and the printing effect. Even for corrugated paper printing, most people have realized the importance of using ceramic roller to improve printing quality. As an important part of flexographic press, ceramic roller has a great impact on the whole flexographic printing

the manufacturing process of ceramic roller is quite complex, and the two most critical parameters are the number of lines and the ink carrying capacity of holes. The number of lines is generally determined according to the lines of printed matter. According to the special proportional relationship between the number of printing lines and the number of wrinkle roll lines, the number of wrinkle roll lines can be determined. At present, with advanced laser engraving equipment, 2000 lines/inch can be engraved, but this kind of high-speed line will not be used in actual flexographic printing in the short term. Even a 200 line/inch print will not be equipped with more than 1400 lines/inch. Due to the small hole opening, too thin wall and poor wear resistance of the corrugated roller of ultra-high line, its service life will also be reduced. In addition, the corrugated roller of ultra-high line will also increase the difficulty of cleaning the corrugated roller. Considering various factors that plastic packaging accounts for an increasing proportion in the packaging industry, we suggest that printers should try to reduce the number of lines to choose the corrugated roller under the condition of printing permission

another important parameter in the production of corrugated rollers is the ink transfer capacity. The unit of ink transfer volume BCM is obtained by using advanced Wyko computer interferometer through tomography and integration. It is the standard measurement unit of hole volume. As a quantitative ink transfer roller, the ink transfer volume of the wrinkle roller is determined by the number of lines and hole volume. The higher the line, the higher the requirements for the temporary suspension of Kong Rongji's shares since the opening of the market on the morning of February 9. When high-speed lines are used for hierarchical printing, if the ink transfer is not accurate, the printing effect will be very obvious. For roller manufacturers, they have the obligation to choose the best ink transfer volume for users, which should not be misleading. In the past, a domestic factory used a foreign manufacturer's high-speed corrugated roller because of the high ink transfer, which is enough to explain the importance of hole volume to the production of corrugated roller

generally, each corrugated roller manufacturer has certain reference standards for the selection of hole volume, and these standards are basically the same. Manufacturers can also engrave the special hole volume required by users. We will provide a set of hole volume data for users to choose before users make corrugated rollers. These data are based on our years of production experience, and users' use is also very successful. A more scientific method to select the volume of lines and holes is to use the corrugated roller test technology. With this test technology, you can select the best indicators of the number of lines and hole volume, see the actual printing effect before printing, and avoid unnecessary losses. Once a data error blow molding machine to develop high-end technology, the loss is difficult to make up

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