Are you a high quality roller into the misunderstanding? – Quality, printing, roller – Printing Industry
Said roller, here we have to note that many different types of roller, and is widely used, except for Print The roller, there used to Coating , Coating the roller, where we just talk about the roller flexo printing.
Now commonly used in flexo roller there are two types of metal roller, mainly used in printing Corrugated paper Board, because the corrugated Cardboard Printed on the precision is not very high, in addition to text and layout lines can be more metal roller; the other is Ceramics Roller, it is divided into the overall style and Sleeve Type two, mainly used for printing high-end products. Ceramic anilox roller 80 resulting from the 20th century in Europe, into our country is almost at that time. It can be said, are high-quality ceramic anilox roller areas, but according to the different quality levels, divided in a specific range only.
1. What is high quality What is a high-quality roller
For this problem, several experts basically the same answer.
Mercury's and belongs to Shanghai Australia that: first, to see the precision roller, the higher the precision, the higher grade. Second, look on the ceramic layer ceramic anilox Spray Quality, that is good or bad the density of ceramic layer. On this point, and belongs to a very vivid punched a metaphor, he said, after the roller spray ceramic layer as semi-finished wood, more wood carving hard as possible, the more loose the more difficult carved molding, carving network The same pattern roller. For the roller, the ceramic layer density, which means the porosity, the smaller the better, generally the pores per unit area is usually less than 1%. In addition, Spraying equipment Roller of the coating also affects the quality. Third, look at the level of laser engraving, for the net hole volume, net hole depth, shape control of mesh points, determined by the carving part. Shanghai Laser Group's Lu
workers also believe that, although the ceramic anilox roller is now more common, but not that it is of high quality products. The so-called high-quality should meet the following requirements: Ceramic Coating Good quality, carved out of the network point of smoothness, uniformity, mesh hole shape, volume of network parameters such as benefit point transfer ink and use. Experts believe that high-quality roller should be in the same lines, the largest amount of storage that ink, which requires processing roller, the net hole depth should be as deep and surface finish as possible high, this will be a longer service life, is a good product.
2. Wrong number of high-line Evaluation of roller products will not change the basic parameters, but with the continuous improvement of user requirements change in the standards only. Since the product fineness Flexo demand a higher number of high-wire roller flexo market has become the current trend. Shanghai Laser Group's Lu worker said, "is the production of high-line roller is the number of 1500 lines / inch below the normal concentration of 800 to 1500 lines / inch, but our company's users do not have such requirements, generally only require 1000 lines / inch or so can, and almost all domestic users that the 600 ~ 800 lines / inch anilox roller is sufficient to printing. and not just look at the number of so-called high line capacity of producers, mainly to see the user demand, not market the product and then fine have no meaning. "
Now requires the number of high roller online must also have better transfer ink to use, although some roller can reach 1200 lines / inch, but no longer use the transfer ink. "Thus, users and manufacturers are not just stuck in the high lines on the surface, from the use of product-related parameters set, the real number of high line, high quality.
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