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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 (such as a zinc plate, copper plate, etc.) stamped with special words or patterns, heated to the required temperature, and the pressure required to be transferred and the corresponding elbows held. 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 in order to achieve the desired hot stamping effect.
The main features, specific applications, and matters to be noted in the use of anodized aluminum:
Hot stamping features:
The pattern is clear and beautiful, colorful, eye-catching, wear-resistant and weather-resistant. On the printed cigarette label, the application of bronzing technology accounts for more than 85%. In the graphic design, bronzing can be used as a finishing touch to highlight the theme of the design, especially for trademarks, registered names, the effect is more significant.
Product application:
1. Ordinary 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 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, while also improving product quality. This kind of anodized aluminum is generally produced domestically. Compared with foreign imports, the price is cheaper, but the gilding performance is slightly worse. Holographic laser positioning Electro-aluminum controls the bronzing temperature, bronzing pressure and speed, and even the bronzing models have a lot to do.
3. Electrochemical aluminum in the process of special applications. 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 edge of the gold foil pattern cannot have significant pressure. Traces, bronzing Anodized aluminum should have good adhesion on the hot stamping surface, as well as no obvious scratches and 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.
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.
For example, if you take the “Hongsanhuan†flip-top cigarette box cigarette label for printing, the original production process needs offset printing and bronzing. If you use a new material, you can do offset printing, oil-passing, and then hot stamping. Reducing one process in offset printing, avoiding the phenomenon of die-cutting and color-cutting of paper (reducing the effect of ultraviolet irradiation at a time), without affecting the normal operation of the hot stamping process, greatly improving production efficiency, reducing scrap rate, and reducing 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. In the 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 adaptability to varnish (resin used in varnish) The type matches with the hot melt glue in the hot stamping aluminum). In all products, the application of this process is relatively small. In addition, galvanized gold on gold, silver ink and matte oil also has high requirements on the bronzing surface and the bronzing anodized aluminum, if the bronzing surface is large Or rough surface, will directly affect the normal conduct of bronzing.
Matters needing attention 1. The appropriate hot stamp foil must be selected according to the different types of objects to be heated. Hot stamping must master the three-way cooperation of temperature, pressure, and hot stamping speed, and differ according to the different stamping materials and hot stamping areas.
2. When cutting, you should master the speed and direction of the turning tool.
3. Electro-aluminum hot-stamping foil should use paper, ink (especially black ink), kerosene, and compound glue with suitable properties. The stamping parts must be kept dry so as to avoid oxidation or damage of the hot-stamping layer.
4. The general packaging is: 0.64×120m one roll, one box per 10 rolls; customizable width is 0.64m, length is 240m or 360m large rolls or other special specifications.
5. Store to prevent pressure, moisture, heat, sun, put in a cool ventilated place.
Postpress gilding process application
With the rapid development of hot stamping foil and packaging industry, the application of galvanized aluminum bronzing has become more and more widespread. Such as: book cover gilding, gift boxes bronzing, cigarettes, wine, clothing trademarks and boxes of bronzing, greeting cards, invitations, pens, bronzing, etc., its color and pattern as much as can be customized according to specific requirements of the special edition. 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.