With the improvement of living standards and the constant renewal of aesthetic concepts, people have higher and higher requirements for print packaging. Not only do these packagings require high quality and exquisite appearance, they also require environmental protection and personalized appearance, and the main way to meet these needs is to post-process packaging prints. Post-press processing not only increases the added value of packaging prints, satisfies the requirements of different consumers, but also is an important link to ensure the quality of printed products.
China is a big country with a large population and a big consumer country. A wide variety of packaging products can be found anywhere in the world. Packaging can be found in many fields such as food, medicine, home appliances, toys, IT products, textiles, ceramics, handicrafts, advertising, and many other fields. How to continuously improve the level of packaging and post-processing technology and increase the added value of products is a problem that the packaging industry needs to face and solve in the coming period.
Paper packaging is the most widely used in all forms of packaging. This is because paper packaging has many advantages: low material cost, convenient processing and printing, low transportation and storage costs, recycling, and environmental protection. Therefore, paper, plastic, metal, glass four pillars of packaging materials, paper packaging, the fastest growth. In all the post-printing processes, the four processes of coating, die-cutting, bronzing, and coating are the most widely used and have the fastest development. So, what is the status quo and development prospects of the post-press processing of Chinese paper packaging? In this paper, a deeper discussion of the paper packaging post-press processing and the four post-printing processing techniques was conducted.
