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What is the number of lines of the roller?

Time:2024-04-19 Views:1 source:HF welding and cutting machine

  

  The line number of the roller is the number of inking holes per unit length on the surface of the roller, and it is also one of the important parameters of the roller, and it also has a very important influence on the ink transfer performance of the roller. Generally speaking, the higher the number of lines of the roller, the smaller the amount of ink transfer, and the greater the vice versa. In addition, the number of lines of the roller also determines its own scope of application. In general, when printing a large area of field color blocks or images that are not too demanding, you can consider using a low number of lines, such as 360 lines/inch or so when printing field areas. On the contrary, when printing fine images or small text and lines, a mesh roller with a relatively high number of lines should be used to prevent the serious expansion of the tone value due to the small dot in the highlight area being too small and being immersed in the ink hole, or the extremely fine lines becoming thicker. However, the number of lines of the roller should not be too high, if the number of lines of the roller is too high, it will not only cause certain difficulties to the processing process of the roller, but also, because the thickness of the wall of the high number of lines of the roller is thinner, the strength will be reduced, and it is easy to damage, that is to say, if the number of lines of the roller is too high, its service life will be shortened accordingly. In general, the number of lines of the roller is four or five times the number of printed parts plus network cables. Of course, it is also necessary to combine the actual production of printed images with the specific situation.

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