With the rapid development of the hot stamping foil and packaging industry, the use of anodized aluminum foil is becoming more and more widespread. Such as: book cover gilding, gift boxes bronzing, cigarettes, wine, clothing trademarks and boxes of bronzing, greeting cards, invitations, pen bronzing, etc., its color and pattern as much, but also according to specific requirements customized version. Hot stamping substrate includes general paper, ink printing paper such as gold and silver ink, plastic (PE, PP, PVC, engineering plastics such as ABS, etc.), leather, wood and other special materials.
Electro-aluminum hot stamping foil is mainly used to heat and press the pattern or text to be transferred to the surface of the stamped material. To complete this process, you need a stamping machine, a template engraved with special words or patterns (such as zinc plate, copper plate, etc.), heated to the required temperature, and transferred to the required pressure for a corresponding period of time. It should be noted that when hot stamping different materials, the appropriate type of anodized aluminum should be selected, and the appropriate temperature, pressure, and hot stamping time should be selected so as to achieve an ideal hot stamping effect.
The main features, specific applications, and matters to be noted in the use of anodized aluminum:
The characteristics of bronzing: the pattern is clear, beautiful, colorful, eye-catching, wear-resistant and weather-resistant. On the company's printed cigarette labels, the application of bronzing technology accounts for more than 85%. In the graphic design, bronzing can be the finishing touch and highlight the theme of the design, especially for trademarks and registered names, the effect is more significant.
Product Application: Velvet Hot Stamping
1, gold, laser gold hot stamping. Can be used for most products, including gold cards, silver cards, laser cards and glass cards on the hot stamping, its application is more common.
2, positioning holographic hot stamping. Holographic laser positioning of aluminum in the design is a special process application, with a corresponding anti-counterfeiting design, can greatly improve the product's anti-counterfeiting capabilities, but also improve product quality. This kind of anodized aluminum is generally produced domestically. Compared with foreign imports, the price is relatively cheap, but the gilding performance is slightly worse. Holographic laser positioning of aluminum on the bronzing temperature, bronzing pressure and speed control, very hot gold models have a great relationship. The cigarettes used by our company for this process include "red-passers", treasures "clouds", etc.
3, electric aluminum in the process of special should be. The first hot stamping is the new idea of ​​the cigarette label design and printing industry. The application of this technology is very demanding for anodized aluminum. In addition to achieving accurate bronzing position, smooth and bright surface, balanced pressure, uniformity, no blistering, no paste, and other requirements, special attention must be paid to the fact that the edges of bronzing patterns cannot have significant pressure. Traces, bronzing Anodized aluminum should have good adhesion on the hot stamping surface, as well as no obvious scratches or scratches. As we all know, the bronzing process is actually a process in which paper is heated and pressurized. For white cards and glass cards, special attention should be paid to the protection of semi-finished products. Various unfavorable factors of paper deformation should be minimized in the production process. This will help the smooth progress of post-bronzing processes and improve the qualified rate of products. The types of cigarettes we produce are mainly dark blue "Shilin" boxes and gold natural "Jiuzhaigou" boxes.
In the application of bronzing process, it will encounter the problem of how to improve the work efficiency in production, especially for the process improvement of large quantities of products is very necessary.
Take the fine "Red Three-ring" flip-top cigarette box cigarette label printing, the original production process needs offset printing - bronzing - oil, after switching to new materials can be done offset printing, oil once completed and then bronzing, It is possible to reduce the number of processes in offset printing to avoid the occurrence of paper-cutting and color-explosion (reducing the effect of UV irradiation). Without affecting the normal operation of the bronzing process, the production efficiency is greatly improved, and the scrap rate is reduced. Can reduce the adverse effects on the production of other products.
The direct bronzing on the surface of UV varnish has a very high requirement on the UV varnish and bronzing of the vulcanized aluminum. During varnish coating, the amount of oil must be controlled to ensure that the entire batch of varnish is relatively coated. Stable, and the oil layer should be thin and flat; for galvanized aluminum used for bronzing, it is required to be resistant to high temperature, have good adhesion, and have good gilding compatibility with varnish (resin used in varnish. The type matches with the hot melt glue in the hot stamping aluminum). In all products, the scope of application of this technology is relatively small, so far it has only been used on fine "Guangzhou" and fine "Red Three Rings". In addition, galvanized gold on gold, silver ink and matte oil on the bronzing surface and bronzing of the aluminum have high requirements, if the surface of the bronzing ink particles larger or rough surface, will directly affect the normal conduct of bronzing.
Source: PACK.CN