Woven bags, crafted from a variety of chemical plastics, are not only environmentally conscious due to their strong recyclability but also serve as a packaging solution across numerous industries. Businesses put branding elements such as logos, images, and textual information directly onto the bags.
Despite their many advantages, these bags pose a challenge during the printing process, often resulting in subpar ink adhesion. To overcome this challenge, corona treatment is employed. This process intentionally roughens the surface to improve its affinity for polar solvents. This process oxidizes and polarizes the treated surface molecules, and the ionic bombardment erodes the surface, thereby enhancing the adhesion capacity of the substrate's surface."
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- Corona GeneratorCorona treatment is a surface electric discharge process that enhances the adhesion of plastic or metallized films. Most plastic films (such as polyolefin films) are non-polar polymers with low surface tension. Corona treatment is used to increase the surface energy of these films, as known inks and adhesives cannot adhere firmly to their surfaces in normal conditions.
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- Corona Treatment StationCorona treatment station, also known as discharge station or discharge treater, is a crucial component of the corona treatment system, commonly used in the corona treatment for materials such as plastic films, metal foils, sheets, and paper. Sanxin offers various types of corona treatment stations for customers to choose from, including double-sided, single-sided, side-open, full-closed, semi-closed, and full-open discharge treaters.