First, the technical advantages of gravure printing Gravure printing has the advantages of high speed, wide width, low consumption and low downtime, can be printed on a variety of substrates to obtain the best results.
1. High Speed ​​Current web gravure printers have a maximum speed of 55,000 rpm and tape speeds of about 15 m/s.
2. Web width The maximum web width of the rotogravure press is:
Publication and printing 106-inch building materials printing 150-inch packaging printing 40-60 inches 3. Short adjustment time The adjustment time from the previous batch to the new job opening is about 30 minutes.
4. Wide range of substrates for gravure ink due to the use of liquid volatile ink, shorter ink transfer system, so the ink drying fast, suitable for the printing of non-absorbent substrates.
5. High-quality gravure products are of good quality and can truly reflect the original effect. Rich and clear layers, thick ink layer, high color saturation, bright and bright ink.
The high quality of the gravure printing is determined by the characteristics of the gravure printing. Different from the relief printing and lithographic printing, the gravure printing area relies on different levels of representation. The gravure printing adopts the cell structure, which is based on the volume of the ink. appeared.
Second, the status of the application of gravure printing 1. The efficiency of the imported equipment should be fully utilized.
2. The process of localization of equipment and equipment should be accelerated.
3. Should be reasonable layout and selection.
Third, the development trend of gravure printing gravure development can be summarized as the following aspects:
1. Automatic Gravure Printing Roller Electroplating Process 2. Rapidly Implementing Non-Film Engraving Process (1) No Film-Electro-Drawing New Process (2) Development of Electron Beam Engraving (3) Laser Engraving and Gravure Process 4. Implementation of Graphic Database Digital Fast proofing 5. The development of gravure printing presses is moving toward multi-purpose, multi-color high-speed, automation, linkage, and environmental protection.
With the gradual establishment of a market economy system, large international and domestic companies are involved in the printing industry, and customers are demanding higher and higher quality of printed matter. Not only do they require exquisite designs, but also the residual amount of solvents in food packaging and printing. More demanding requirements. The surviving amount of solvents in packaging prints exceeds the standard, which not only contaminates the packaged goods, but also damages the color, aroma, and taste of the articles. There are many factors that affect the residual amount of solvent. There are:
1. Mixing ratio of solvent 2. Variety of resin 3. Temperature and air volume in drying oven 4. Speed ​​of printing 5. Environmental protection