China was the earliest country for engraving copper plate type applications. As early as 1000 years ago, the Song Dynasty had used engraving copper plates. China is also one of the countries with the highest level of use and highest level of modern engraving and embossing.
The main features of the embossing process in China are as follows:
1 The composition design is scientific and reasonable, and the overall pattern structure is fully considered to make the main part stand out. Process designers have excellent skills in plastic arts and can design good artistic effects.
2 The printing is closely integrated with the embossing and embossing process, and the two complement each other. The printing creates good conditions for embossing and embossing, and embossing and embossing make up for printing.
3 The carving process is fine, and it is created according to the principle of relief art. It emphasizes the intersection of the perspective and the different levels of the main body, and the subtlety can consider the three-dimensional effect of embossing the paper surface.
4 According to different products and paper properties, embossing embossing printing and pressure adjustment, so that the convex layer is rich, three-dimensional sense.
In order to further develop the characteristics of the embossing and stamping process in China, a lot of work needs to be done in the future:
1 Continue to promote the fine traditions of Chinese embossing and imprinting technology. In the important way of market economy competition, the application of embossing and embossing in packaging and decoration still has a vast world. Some people think that today is the era of electronic information, the traditional process can be replaced. This is a misunderstanding. Although modern methods must be actively adopted, they are not always used by all aspirations. There is an invaluable treasure in the traditional crafts that is everlasting, and there are also parts that need to be eliminated when they lose value. They should be distinguished. Embossing and embossing is a kind of process technology. As long as it constantly enriches new content, it will always be brilliant.
2 Business operators and decorators combine to continuously develop new products. In the market competition, quality is often used to win, and competitive products are used to establish corporate image. Make full use of printing and embossing process innovation. For this reason, business operators and decorators who are engaged in packaging and decorating must constantly improve their own business standards. They can invite relevant experts to give lectures and continue to develop and innovate.
3 Make great efforts to train professional technicians who have carved concave and convex copper plates. Corrugated copper plates are usually produced by etching and engraving. Among them, the etching method can only obtain simple and unstructured imprints. It is used for low-grade prints, and the engraving method can achieve rich three-dimensional prints. It is difficult to cultivate such talents, and it is necessary to have a solid foundation in fine arts and sculpture as well as familiarity with the printing process. In the 20 years after the founding of the People's Republic of China, Shanghai had dozens of such talented people and had a high level of creativity. Hundreds of masterpieces have been created. There are few talented people of this kind, and there are no successors. Fine products are hard to see. Therefore, we must step up training, it is best to graduate from colleges and universities, into the printing factory internship for a long period of time, through their own efforts to become qualified personnel.
4 Continuously improve the embossing process. Embossing and embossing on the surface of paper is an integrated process that requires handling complex models and mechanical pressure problems. The compound model first engraved the concave plate of the copper plate and then made the composite convex surface model. The requirement is very precise, so that the three-dimensional convex surface layer can be displayed on the surface of the paper by pressing. In the long-term practice, copper, zinc, plastics, and other materials have been tried to make composite convex models. This process is of poor precision and can only be applied to simple prints. The use of on-site gypsum production convex model of fine prints, process technology is more difficult, the need for continuous improvement and innovation. In addition, it is necessary to intensify research on imprinting machinery with appropriate pressure and flatness, fineness, and high degree of automatic control.