Introduction of Stamping Process for Label Printing

In recent years, with the development of commodity economy and the influx of foreign capital and technology, the domestic printing and packaging industry has been greatly developed. In particular, the printing of cigarette packets and labels is the most prominent embodiment of the application of advanced technology in the printing industry.

In these two printing products, machines, consumables and technology have all developed to the point where foreign counterparts are amazed. How to introduce the most advanced technology and technology into our daily production, and make these technologies and technologies practical and localized, so as to be used as a tool for new product development in production, is a topic worthy of discussion by colleagues in the printing industry. Now let me talk about the combination of stamping process and label. If there is anything wrong, please feel free to correct me.

First of all, bronzing process is divided into cold stamping and bronzing. The principle of cold stamping is to combine anodized with substrate by pressure and special glue. The whole process does not need heating, hot stamping and pad printing technology. At the same time, compared with the expensive and complicated blanching machine, the narrow rotary machine is economical and convenient. Its maximum hot stamping speed can reach 120m per minute.

However, the cold stamping process started late, which was restricted by the large amount of anodized in the hot stamping process and the gloss of anodized after hot stamping was not as good as that of hot stamping, and the gravure printing effect could not be achieved. Therefore, it has not been widely used in China. Judging from the future development trend, this technology has great potential and is worth developing.

I believe everyone is familiar with the principle of blanching. Simply put, there are three major material elements: machine, anodized and bronzing plate. The three elements of technology are: temperature, pressure and speed. Hot stamping methods include rotary pressing, rotary pressing and flat pressing. Speaking of machines, anyone familiar with this technology knows that Stona, a subsidiary of the Swiss bost Group, is recognized as the king of bronzing in the world. Therefore, there is often such a joke in the bronzing world: "The bronzing master has these three things, and there is nothing to complain about if it burns badly."

Of course, pad printing technology is also very important in hot stamping, and mastering this technology can only rely on experience. So completely speaking, in addition to having first-class machines and consumables, the experience of technicians, that is, people, plays a decisive role in ironing.

Secondly, bronzing technology has made great progress in label application in recent years. In particular, laser and holographic anodized, through the transfer effect of blanching, make the label products colorful and difficult to imitate. In view of the particularity of label anti-counterfeiting, anodized aluminum usually adopts thin PET film and adhesive layer to facilitate transfer, so as to achieve the purpose of mass and high-speed production. Compared with the cigarette pack printing process, label printing has less trouble in combining anodic oxidation with varnish and ink, so the production efficiency is higher than the former.

In addition, there is another topic that cannot be ignored. When hot stamping laser and holographic anodized, the surface of the bronzing plate is clean and smooth, and mirror polishing is also carried out to prevent the anodized from being dim and deformed after transfer. So that the label product is smooth, the brand is protected, and the product grade is improved.

With the development of cold stamping technology, more and more label printing manufacturers have expanded their application fields and their efforts in the industry. Finally, from the development trend of printing industry, more and more new processes and technologies are combined with labels, such as flexography and screen printing. Through various methods, the label is bright and beautiful, which only improves the grade of the product and increases the difficulty of anti-counterfeiting. As the saying goes, a hundred flowers blossom and a hundred schools of thought contend, which makes label printing more and more perfect.