In industrial production, many materials require enhancing the adhesion of surface ink to ensure the reliability of printing, coating and other processes due to low surface energy, strong inertness or the presence of pollutants.

The low-temperature plasma cleaning machine can remove pollutants such as dust, grease, and release agents from the surface by high-speed ion impact, making the surface cleaner. This eliminates the obstacles of these impurities to ink adhesion, allowing the ink to better contact the material surface and improve adhesion.

Due to the non-polar and low surface energy of polymer materials, the surface can be rough, such as PP, PE, plastic packaging (such as food bags, beverage bottles), car interiors (bumpers, instrument panels), and home appliance casings (washing machine panels). 

Due to the high surface crystallinity and few polar groups, ink is prone to detachment. Plasma (oxygen) treatment: removes residual silicone oil on the surface, generates silicon hydroxyl groups, and uses the bombardment effect of oxygen plasma to make the material surface rough and form more small concave convex structures. This not only increases the contact area between ink and surface, but also generates mechanical anchoring effect, allowing ink to better adhere to the surface and not easily fall off. During plasma cleaning, the molecular chains on the material surface will be broken, and hydroxyl groups will be introduced. (- OH), Carboxyl (- COOH) Equipolar functional groups significantly increase surface energy. The increase in surface performance not only improves the wettability of the material surface, making it easier for ink to spread and adhere on its surface, but also enhances the chemical bonding between the ink and the material surface, further improving adhesion.

Low adhesion of ink printing is one of the common problems in the printing manufacturing industry. Ink cannot fully adhere to the printing substrate, resulting in easy detachment and blurring of the printed material surface, which in turn affects the quality and service life of the printed material. Here, the editor will provide a detailed introduction to the important roles of low-temperature plasma cleaning machines in improving ink printing adhesion?

1. Different substrates have different surface roughness and chemical properties, which directly affect the adhesion effect between ink and substrate. For example, when printing on certain plastic materials, the adhesion of ink is often low due to their smooth surface. Therefore, when selecting printing substrates, it is necessary to choose suitable materials according to actual needs and printing requirements, and low-temperature plasma cleaning machines are an effective solution to improve ink printing adhesion. Plasma technology can improve the adhesion between ink and substrate by activating the surface of the printing substrate, increasing its roughness and surface energy.

2. Under the treatment of plasma processing machine, the polar groups on the surface of the printing substrate increase, the surface tension is enhanced, and the ink can better bond with the substrate, thereby improving adhesion. In addition, plasma cleaning machines can effectively remove organic pollutants and oxide layers on the surface, reduce the contact between ink and impurities, and further improve the quality of printed materials.

If you have any needs or other related questions about plasma cleaning machines, please feel free to contact us at any time. We will provide you with comprehensive solutions and high-quality services. Our company has advanced plasma processing machines that can flexibly adjust plasma gas, power, and processing time to meet the processing needs of different printing materials. Welcome to click on the official website of Zhenyi Co., Ltd. We focus on the research and manufacturing of plasma cleaning machines, currently including rotary plasma cleaning machines, linear wide width plasma cleaning machines, vacuum plasma cleaning machines, dry dust removal ultrasonic cleaning machines, and other types, to provide you with high-quality and reliable products.