Offset printing paper, this should improve speed and quality
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1. When knocking paper, the method of thin paper and thick paper (100-350g/m2) is different. The thin paper knocking should pay attention to even and flat knocking. The smaller the interval between the paper-cutting segments, the better the spacing, so as not to cause Crumpled paper. Generally, for paper that is eager to be printed on the machine, only the tip is knocked. Keep the mouth flat so that you can transfer paper smoothly.
2, the paper presser foot is smaller than when printing thick paper, generally press about 5mm.
3. The paper feed wheel should be lightly adjusted as much as possible. When the paper passes, the paper wheel can smoothly roll, reducing the resistance and preventing the paper from curling.
4. For the better machine of light control system, such as KBA, Komori series offset printing machine, etc., it is necessary to clean the paper ash at the mouth in time, it is best to clean it once, so as not to affect the light control sensitivity, resulting in the machine stop for no reason. . Because, for thin paper printing, the light control function is more important.
5, the temperature and humidity of the printing workshop should be consistent with the paper library to prevent the paper from loading or shrinking, which affects the smooth printing and paper feeding. For qualified enterprises, air conditioners or air humidifiers can achieve better results. If there are no conditions, watering and airing can be used to improve the printability of the paper.
6. When printing thin paper, the printing speed is a little slower, and the delivery system and paper feeding system will be more stable.
Generally speaking, the machine with a maximum machine speed of 10,000 impressions/hour has a speed of about 6500 impressions/hour; a high speed machine of 15,000 impressions/hour, and the speed is set at 9500 impressions/hour.