Over the past twenty years,the printing industry landscape has been redefined by the digital information and communication revolution characterized by a reduction in personal and office printing and increased demand for commercial,signage and packaging printing.As the newest member of the printing technologies,Inkjet has exhibited performance advantages such as high-speed output,flexibility,and easy data processing and customization over traditional printing methods such as offset printing,making it better suited for this transition.In packaging printing,for example,the packages are not only product containers,but also an opportunity to influence customers' purchasing decisions.The industry need for flexibility around changing the printed packaging for special events,seasonal changes and personalization often result in short print runs where inkjet offers the best cost structure without sacrificing speed and print quality.There are three basic components in the inkjet printing process: printhead,ink and substrate.From the ink perspective,inkjet can be classified into three categories: solvent,aqueous and UV-curable.Solvent-based inkjet is typically used for applications where durability and scratch resistance are the most important performance requirements.In this process,the solvent”bites”into the substrate surface to anchor the inkjet colorants.The problems with solvent-based inks are solvent handing and work place safety.
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