Principle and application of bronzing process in 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. Especially cigarette pack printing and label printing are the most prominent manifestations of the use of advanced technology in the printing industry. In these two kinds of printed products, machines, consumables and technology have developed to the point of amazing foreign counterparts.
How to introduce the most advanced technologies and processes into our daily production, and make these technologies and processes practical and localized, making it a tool that we can use in the development of new products in production. It is worth discussing in the printing industry. topic of. Now let's talk about the combination of bronzing process and label. If there is something wrong, readers will not hesitate to correct it.
First, the bronzing process is divided into cold blanching and hot blanching. The principle of cold foiling is mainly to use pressure and special glue to combine the anodized aluminum with the substrate. The whole process does not require heating, nor does it need hot stamping and pad technology. At the same time, narrow width rotary machines are relatively expensive and complicated to operate. , Economic convenience. The maximum hot stamping speed can reach 120 meters per minute. However, the cold stamping process started late, and was subject to the large consumption of anodized aluminum during the hot stamping process. The gloss of the anodized aluminum after ironing is not as good as that of hot stamping, and the concave ironing effect cannot be achieved. Therefore, there is currently no scale in China. application. From the perspective of future development trends, this is a technology with great potential and worth developing.
The principle of blanching is believed to be familiar to everyone. In simple terms, there are three major material elements: machine, anodized aluminum, and bronzing version. The three major elements of technology are: temperature, pressure and speed. The method of bronzing is from round to round, flat to flat. When it comes to machines, anyone familiar with this process knows that Stoner, a member of the Swiss Bost Group, is the world ’s recognized gold stamping king; in terms of anodized aluminum, Kurz is undoubtedly the leader in the gold stamping industry; After the printing company has the first-class bronzing machine and anodized aluminum, the bronzing version becomes very important. The German h + m company belongs to the Kurtz Group, and the bronzing version produced by it can make the machine and the anodized aluminum perfectly combined. Therefore, there is a joke in the bronzing industry: "When a bronzing master owns these three things, if it is not hot, you can't complain about it." Of course, the pad technology is also very important in hot stamping, and to master this technology, it can only depend on experience. Therefore, in a nutshell, in addition to having first-class machines and consumables, the experience of technicians, that is, people, plays an important role in blanching.
Secondly, the bronzing process has made considerable progress in the application of labels in recent years. Especially laser and holographic anodized aluminum, through the transfer effect of blanching, makes the label products colorful and difficult to imitate. In view of the particularity of label anti-counterfeiting, anodized aluminum usually uses a thin PET film and glue layer to facilitate transfer, so as to achieve the purpose of mass production and high speed production. Compared with the cigarette pack printing process, because label printing has less trouble with the combination of anodized aluminum, varnish and ink, the production efficiency is higher than the former. In addition, there is a topic that cannot be ignored. In the hot stamping of laser and holographic anodized aluminum, in addition to the clean and smooth surface, there is also a mirror polishing treatment to prevent the anodized aluminum from being matte and distorted after the transfer. Therefore, the label products are smooth, shiny, and play a role in protecting the brand and improving the product quality.
With the development of cold stamping technology, more and more label printing manufacturers, as the development of technology and the expansion of application fields, as well as the industry counterparts, will add to their efforts.
Finally, from the perspective of the development trend of the printing industry, more and more new processes, new technologies and standards, such as flexo, silk screen, etc., through various methods to achieve the bright color of the label, the appearance is really only improve the product grade , Increasing the difficulty of anti-counterfeiting, as the so-called, blooming flowers, hundreds of contention, making label printing increasingly perfect.
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