The so-called offset fault refers to abnormal phenomena in production or during the operation of the machine. As the operators and managers of offset presses, they must grasp the regularity of the occurrence of offset printing faults and the methods of troubleshooting, so that the production can proceed smoothly. The biggest features of offset printing failure are: 1. Comprehensiveness and complexity The offset press is a complex machine. Its power system is composed of a motor and an air pump. Its motion is synthesized by paper conveying, positioning, ink conveying, water conveying, embossing, and paper collecting. During this period, there were many cooperations. And handover, plus the use of printed materials, and finally printed on the surface of the substrate. In this process, the fault can be generated at any time in any component and any process, or between its cooperation relationship, which determines the comprehensiveness and complexity of the offset fault. Its comprehensiveness and complexity are also manifested in that the same fault can be caused by different reasons. For example, inaccurate overprinting may be caused by improper adjustment of the positioning mechanism, or it may be caused by unreasonable lining or improper control of the use of wetting fluid. On the contrary, the same reason may also cause different faults. For example, excessive use of dampening fluid may cause faults such as inaccurate overprinting, dirty back, and poor drying. Due to the comprehensiveness and complexity of printing failures, it is decided that offset operators should develop from one-way thinking to multi-way thinking. 2. The practicality of offset printing failure Offset printing faults are manifested in the process of printing production. The understanding of offset printing faults is based on theoretical understanding. It is impossible to obtain a deep understanding and intuitive judgment of offset printing faults, and it is impossible to obtain the ability to eliminate faults. You must be familiar with the actual performance of various faults in practice, and then analyze the reasons on this basis, accumulate the ability to eliminate the fault, and troubleshooting requires some adjustments to the offset press or printed materials. This adjustment relies on theoretical guidance and practical experience, but the process of adjustment is the performance of operational skills. Whether the adjustment is reasonable and in place must be analyzed specifically for specific faults. The failure of the same substrate in different models is different. Therefore, the analysis of printing failure is not only a technical theory, but also a practical skill. 3. Regularity of offset printing failure Offset printing faults have both comprehensiveness and complexity, but they also have their regularity. As long as they master the law of faults and clarify their ideas, then even complex faults can be eliminated in time. The rules followed by offset printing faults are essentially the principles of offset printing process and operation control technology. Anything that conforms to this rule will be printed normally, otherwise, various faults will occur, and the elimination of such faults will also be Regular. Generally speaking, if a fault occurs, first classify it as a device fault or a process fault. If it is a mechanical fault, follow the mechanical fault to analyze and eliminate it. There are also different rules for the type, for example, the fault rules generated by sheet-fed offset presses and web offset presses are different. Similarly, the faults caused by single-color offset presses and multi-color offset presses are also different. Offset presses and semi-satellite cylinder-set offset presses have different faults. Therefore, on the basis of mastering the commonality of printing faults, you must understand their personality so that they can be targeted. Cocktail Napkin,Beverage Napkin,Custom Napkins,Printed Cocktail Napkin BODA ENTERPRISE LIMITED , https://www.bodapaper.com