Defoamer for offset printing fountain solution: key guarantee for printing quality

NEWS & CASES

Defoamer for offset printing fountain solution: key guarantee for printing quality
By : Zilibon Chemical

2025/3/24
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In the offset printing process, the role of fountain solution is crucial, and it directly affects the quality and effect of printing. However, the fountain solution often produces foam during use, which not only affects the normal printing, but also may cause quality problems in printed products. The emergence of defoamer for offset printing fountain solution has effectively solved this problem and has become an indispensable auxiliary agent in the printing industry.

The main function of the defoamer for offset printing fountain solution is to eliminate the foam in the fountain solution and ensure the smooth progress of the printing process. During the offset printing process, the fountain solution will come into contact with a variety of substances such as ink and paper, and foam is easily generated due to various physical and chemical effects. These foams will cause the surface tension of the fountain solution to change, affect the transfer and distribution of the ink, and then cause quality problems such as uneven ink color, dot deformation, and blurred pattern in the printed product.

The working principle of the defoamer for offset printing fountain solution is mainly based on its destructive effect on foam. Defoamers usually have low surface tension and can spread quickly on the surface of the foam to form a thin film. This film will destroy the elasticity and stability of the foam, causing the gas inside the foam to gradually escape, resulting in the foam bursting.

In practical applications, the use method and dosage of offset fountain solution defoamer need to be adjusted according to the specific printing process and fountain solution system. Generally speaking, the amount of defoamer should not be too much, otherwise it may affect the performance of the fountain solution and printing quality.

Offset fountain solution defoamer plays an important role in the printing industry. It can effectively eliminate the foam in the fountain solution and improve the printing quality and production efficiency. With the continuous development of the printing industry and the improvement of printing quality requirements, the research and development and innovation of defoamers will continue to advance, providing more powerful support for the development of the printing industry.
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