In the printing industry, ink plays a crucial role, but it also faces some challenges in practical applications. For instance, during the printing process, ink needs to smoothly transfer between components such as the printing plate and the ink roller. If there is a lack of good lubrication, the ink transfer will be hindered, resulting in uneven ink color, non-realistic dots, and other issues that seriously affect the printing quality. Moreover, after the printing is completed, if the ink does not dry thoroughly or has poor anti-sticking properties, the ink layer on the printed product is prone to stick together when being rolled up or stacked, which not only may damage the printed product but also causes troubles in subsequent processing and use. For example, in label printing, adhesion may cause the label to fail to peel off normally. 
To solve these problems, silicone oil has become a powerful assistant for ink. Silicone oil is an organic silicon compound with a unique chemical structure and excellent properties. Its main chain is composed of silicon-oxygen bonds, and the side chains are organic groups. This special structure endows silicone oil with a series of excellent characteristics, enabling it to play a key role in ink and effectively improve the ink's performance to meet the requirements of the printing industry. 
Silicone oil demonstrates outstanding lubrication performance in ink, mainly due to its low surface tension and high chemical stability. During the ink transfer process, silicone oil can reduce the friction between the ink inside and between the ink and the components of the printing equipment. Just like in offset printing, where ink needs to be transferred from the ink roller to the printing plate and then to the paper, the presence of silicone oil makes this process more uniform and smooth, effectively avoiding problems such as ink accumulation or poor transfer caused by excessive friction, resulting in clear and sharp edges of the patterns and text, accurate dot reproduction, and natural color transition. 
In flexographic printing, the surface of the printing plate is relatively soft, and there are higher requirements for ink transfer. Silicone oil enables the ink to spread better on the printing plate surface and smoothly transfer to the substrate, improving the printing quality and reducing pattern defects caused by poor ink transfer, such as ink bleeding and ink shortage.