Package printing is the general term for printing various graphics and texts on packaging materials and containers to meet packaging requirements. Due to the diverse colors and patterns required for packaging and decoration, package printing utilizes a variety of printing techniques, including letterpress, offset, gravure, flexo, and silk-screen, as well as post-press processing technologies.
The economy of the 21st century is an ecological economy. Faced with increasingly severe resource and environmental constraints, my country's 2007 Government Work Report clearly stated: "Energy conservation, environmental protection, and intensive land use should be the breakthrough points for transforming the economic growth model," "Develop a circular economy and accelerate the construction of a conservation-oriented society," and "Sustainable development can only be achieved by pursuing a circular economy based on the most efficient use of resources and environmental protection." Energy conservation, emission reduction, and sustainable development have become issues of great concern to all sectors of society. Energy conservation and emission reduction not only carry the responsibility of environmental protection but also the future of sustainable economic and social development and scientific development. Technological progress, energy reduction, and efficiency improvement are the core of promoting systematic energy conservation and achieving intensive management. They are also the fundamental content of energy conservation and material conservation efforts by enterprises in the current market economy. Environmental pollution caused by industrial development directly affects people's quality of life. Therefore, the various pollution and heat emissions generated during the production process of the packaging and printing industry, as well as energy conservation, are issues that all of society, especially industry enterprises, should pay attention to and address.
Packaging printing can be classified in many ways, mainly including printing process, packaging materials, packaging form and functional characteristics.
Package printing involves printing on various packaging materials, adding decorative patterns, designs, or text to make the product more attractive or informative, thereby conveying information and increasing sales. This includes printing on cartons, bottles, and cans.