With the progress of society, the development of the times, and the improvement of aesthetics, people are demanding more and more for printing products. In order to beautify the packaging, not only should the color of the printing be smooth and colorful, but also a more advanced metallic luster should be used, and a more three-dimensional appearance should be provided to show its beauty and elegance. If printing with metallic ink, not only the printing effect is poor, but also the cost is high. The ink is in contact with air for a long time and is prone to oxidation, which causes the color to darken. Therefore, using the method of “bronzing+convexâ€, bronzing+concavo-convex patterns or texts to be highlighted in the design composition can not only make the color of the product lasting, but also be beautiful and generous, and can play the role of finishing touch, and is simple and economical. get more. Source Jinjia Group beer hot shop
"bronzing + bump" is two separate processes. Hot stamping, also known as hot stamping, is a special printing process that does not use ink. It uses a certain pressure and temperature, through the stencil installed on the stamping machine, the printed matter and the hot stamping foil are pressed in a short time, and the metal foil is stamped and printed on the surface of the printed matter according to the graphic of the hot stamping template; A post-printing method for printing embossed or indented text and patterns on paper. Now it has been developed to bronzing and bump once completed, which reduces the number of processes, saves time, and reduces costs. It also avoids the inaccuracy of gilding and embossing and ensures the quality of the product.
The quality of the "bronzing + bump" process depends on the quality of the stencil, the temperature of the bronzing, the pressure of the bronzing, the speed of the bronzing, the material being burned, and the properties of the galvanized aluminum.
The template is divided into negative (gravure) and positive (topography). The quality of yin and yang directly determines the quality of hot stamping. Therefore, the yin and yang version must be adapted to hot stamping and supporting. The pattern or text must be clear, smooth and clear. depth.
The bronzing temperature is high and the stencil is easy to produce, so that the aluminum foil is blistering, clouds appear or the printed product loses the metallic luster; conversely, if the temperature is too low, the hot stamp is not printed or the hot stamp is not firm, and the hot flower is produced after the ironing.
Excessive bronzing pressure can easily result in thicker paste or thicker prints; when it is too small, it will not be able to be hot stamped or hot-stamped, and there will be no unevenness.
The bronzing speed will be too fast and the prints will be blotted; too slow and inefficient, easy to paste.
The properties of the hot material and the anodized aluminum are also important factors. Some products are not suitable for this type of anodized aluminum. Another kind of anodized aluminum has a good hot stamping effect. Some products, such as UV varnish, are difficult to hot stamp.
The above factors are mutually reinforcing and mutually restrictive. Only by choosing the best condition can we guarantee the best results, so that our products can achieve “excellentâ€.