With the development of packaging industry, packaging and printing technology has made great progress, and industrialized machinery and equipment are becoming more and more intelligent. For example, the bronzing technology in packaging and printing has also undergone great changes. Now let's share with you the difference between bronzing and three-dimensional bronzing?

1. Bronzing: it refers to the processing technology of using the template installed on the hot stamping machine with the help of a certain pressure and temperature to make the printed matter and the hot stamping plate close and press in a short time, and transfer the metal foil or color pigment foil to the surface of the hot stamping material according to the graphic requirements of the hot stamping template. Because hot stamping is mainly gold and silver, it is often called hot stamping. In terms of technology, it can be divided into ironing before printing and printing before ironing. Hot stamping before printing is to hot stamp the electrochemical aluminum foil layer on the blank substrate, and then print pictures and texts on the surface of the aluminum foil layer. It is mostly used for packaging and printing products requiring large-area hot stamping. Printing before ironing is to hot stamp the required patterns on the printed products and the parts that need hot stamping, which is a widely used process at present. From the way of hot stamping, it can be divided into hot stamping technology and cold stamping technology.

2. Three dimensional bronzing: three dimensional bronzing technology is a composite technology combining bronzing technology and concave convex embossing technology. It is a process that uses corrosion or engraving technology to make bronzing and concave convex graphics and texts into a female die gravure and male die gravure matched up and down, so as to realize the one-time completion of bronzing and concave convex embossing technology.

In addition to forming relief like three-dimensional patterns, three-dimensional gilding is different in plate making, temperature control and pressure control. Compared with ordinary bronzing process, three-dimensional bronzing can be said to be an upgraded version. Its conditions are more mature in all aspects. In the later stage, it will gradually replace the process of forming three-dimensional gold pattern by two processes: bronzing and concave convex embossing. With the improvement of packaging box requirements and the maturity of bronzing technology, it is a good choice in the field of packaging and decoration.