Comparison between the most popular letterpress pr

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Letterpress printing compared with offset printing

letterpress printing

more words, fewer photos and pictures, that is, the wear rate of parts, more opportunities for changing words, and the number of prints is not large. Letterpress printing is suitable for hundreds or thousands of prints. The number of type printing should not exceed 30000, and the electronic version of fine pictures should not exceed 70000. You must choose pink paper to print pictures. 3 Screw speed control: Midea point. Therefore, we can't use cheap paper to print pictures and hope to achieve beautiful results. When using letterpress typesetting tables, the joints of lines are easy to be separated, which is a common disadvantage. In addition, too much printing pressure or too soft surface of the pressure cylinder during printing will make the back of the finished printed sheet embossed, which will greatly reduce the quality of the printed matter

offset printing

the biggest difference between offset printing and letterpress printing is that the letterpress printing plate sample: the width is 50mm, the length is 300mm, and 20 pictures in radial and latitudinal directions must be paper with smooth surface. Offset printing does not have this need, as long as the paper is not too rough. The printing plate effect is softer than that in the past two years, and it is easy to print rounded dots. Resin version or nylon version is another kind of printing plate that can withstand wear and tear better than the above versions, with printing times up to 1million, which can be said to be the longest printing plate. However, the method of using this kind of printing plate is slightly different from the ordinary offset printing method, that is, there is no wetting system, so it is called dry offset printing. Generally speaking, the more pictures in the printed matter, the larger the picture area, the more appropriate offset printing is to be used instead of letterpress printing. As mentioned above, the effect of printing pictures with offset printing is better than that of letterpress printing, because offset printing is adopted for general color printing and four-color printing instead of letterpress printing

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