How to ensure the stability of qinghua offset printing ink red during high-speed printing?
Publish Time: 2024-12-04
In the process of high-speed printing, ensuring the stability of qinghua offset printing ink red is crucial to obtaining high-quality printed products.First of all, the formula design of the ink itself is the key. Optimizing the ratio and selection of pigments and binders, and selecting high-quality, well-dispersed pigments can make them evenly distributed during high-speed stirring and flow, and not easy to agglomerate. Suitable binders should have good fluidity and transferability, and can be quickly and evenly coated between the printing plate and the paper during high-speed printing, reducing unstable phenomena such as ink drawing and splashing. For example, some new resin binders can effectively improve the rheological properties of inks and meet the needs of high-speed printing.Secondly, the viscosity control of inks cannot be ignored. If the viscosity is too high, the ink is difficult to transfer between the ink rollers, and it is easy to have problems such as ink bars and ink piles; if the viscosity is too low, it may cause unstable ink transfer and uneven color. By adding an appropriate amount of diluent or viscosity regulator, and combining advanced viscosity detection equipment for real-time monitoring and adjustment, qinghua offset printing ink red can maintain a suitable viscosity during high-speed printing, ensuring that the ink is stably transferred to the substrate.Furthermore, the parameter settings of the printing equipment have a significant impact on the stability of the ink. The hardness, pressure and speed of the ink roller need to be accurately adjusted. Appropriate ink roller hardness can ensure good ink transfer and coating effects; uniform and moderate pressure can stably transfer the ink from the printing plate to the paper; and reasonable ink roller speed can prevent the ink from accumulating or scattering on the ink roller. For example, the servo motor is used to accurately control the speed of the ink roller, which can be adjusted in real time according to the printing speed to ensure the stable supply and transfer of ink.In addition, the control of the printing environment is also extremely important. The stability of temperature and humidity can maintain the stability of the physical properties of the ink. High temperature may make the ink thinner, while low temperature may make it thicker or even solidify; too high humidity will affect the drying speed of the ink, and too low humidity may cause the ink to electrostatically absorb dust and other impurities. By installing temperature and humidity adjustment equipment to control the printing workshop environment within an appropriate range, stable external conditions can be provided for the high-speed printing of qinghua offset printing ink red.Finally, the skills and experience of the operator are also critical. They need to be proficient in ink mixing techniques, equipment operating specifications, and be able to promptly detect and deal with abnormal situations in the printing process, such as ink color deviation and poor transfer, to ensure that qinghua offset printing ink red can remain stable throughout the high-speed printing process, thereby efficiently producing colorful and high-quality prints.
