Characteristics and precautions of hot stamping of

Characteristics and precautions of cigarette bag hot stamping

with the rapid development of hot stamping foil and packaging industry, electrochemical aluminum stamping is more and more widely used. Such as: book cover bronzing, gift box bronzing, clothing trademarks and box bronzing, greeting cards, invitations, pens bronzing, etc., especially in the cigarette bag printing process, bronzing process is widely used. The substrates for hot stamping include general paper, ink printing paper such as gold and silver ink, plastic (PE, PP, PVC, engineering plastics, etc.), leather, wood and other special materials

anodized hot stamping foil mainly uses heating and pressurization to transfer patterns or words to the surface of the hot stamping material. To complete this process, you need a hot stamping machine, a template engraved with special words or patterns (such as zinc plate, copper plate, etc.), the temperature required for heating, the pressure required for transfer, and the corresponding time. It should be noted that when hot stamping different materials, you should choose the appropriate model of electrochemical aluminum, and choose the appropriate temperature, pressure, hot stamping time, in order to achieve the ideal hot stamping effect

features of bronzing:

clear and beautiful patterns, bright colors, wear resistance and weather resistance. At present, the application of bronzing technology on printed cigarette labels accounts for more than 85%. In graphic design, bronzing can play the role of making the finishing point and protruding the design theme, especially suitable for trademarks and registered names

application of products:

1. Bronzing, anchor gold stamping. It can be used for hot stamping on most products, including gold cards, silver cards, anchor cards and glass cards. Its application is more common and the production is less difficult

2. Positioning holographic bronzing. Holographic laser anodized aluminum is a special process application in design, with corresponding anti-counterfeiting patterns, which can greatly improve the anti-counterfeiting ability of products and improve the grade of products at the same time. This kind of anodized aluminum is generally produced domestically. Compared with foreign imports, the price is relatively cheap, but the bronzing performance is slightly poor. F) automatic calibration of stamping temperature, stamping pressure and vehicle speed by holographic laser anodized: the system can automatically calibrate the accuracy of indication; Control and even bronzing models have a lot to do with it

3. Special application of electrochemical aluminum in technology. Burning before printing is a new idea in cigarette label design and printing industry. The application of this process has high requirements for anodized aluminum. In addition to the requirements of accurate bronzing position, smooth and bright surface, balanced and uniform pressure, no foaming, no paste, etc., it is also particularly required that the edges of bronzing patterns should not have obvious indentation, and the bronzing anodized aluminum should have good adhesion on the hot stamping surface, and there should be no obvious scratches and scratches. As we all know, the bronzing process is actually a process of heating and pressing the paper. For white cards and glass cards, special attention should be paid to the protection of semi-finished products by limiting the buckling/extension of adjacent segments, and various adverse factors of paper deformation should be minimized in the production process, which is of great help to the smooth progress of post bronzing process and the improvement of product qualification rate

in the application of bronzing process, we will encounter the problem of how to improve work efficiency in production. In particular, it is very necessary to improve the process of large quantities of products. Take the printing of small boxes of cigarette labels with high-quality "red three rings" flip strips as an example. The original production process requires offset printing, bronzing and oiling. After using new materials, offset printing and oiling can be completed at one time, and then bronzing. In this way, a process can be reduced in offset printing to avoid die-cutting and color explosion of paper (reducing the impact of ultraviolet radiation once), On the premise of not affecting the normal operation of the hot stamping patent in the global effective metalworking process, it greatly improves the production efficiency, reduces the scrap rate, and reduces the adverse impact on the production of other products

direct bronzing on the surface of UV varnish requires high requirements for UV varnish and bronzing anodized aluminum. When applying varnish, pay attention to controlling the amount of oil, try to ensure that the varnish coating of the whole batch of products is relatively stable, and the oil layer should be thin and flat. For the anodized aluminum used for hot stamping, it is required to be high-temperature resistant, have good adhesion, and have good bronzing suitability with the varnish (the resin type used in the varnish matches the hot-melt adhesive in the anodized aluminum used for hot stamping). In all products, the scope of application of this process is small. In addition, anodized gilding on gold, silver ink and dumb oil also has high requirements for the gilding surface and anodized gilding. If the ink particles on the gilding surface are large or the surface is rough, it will directly affect the normal gilding

precautions:

1. The appropriate hot stamping foil must be selected according to the different varieties of objects being ironed. During hot stamping, we must master the three forces of temperature, pressure and hot stamping speed, and make differences according to the world's first-class ISO 9001:2008 production standard, manufacturing materials and hot stamping area

2. Master the speed and direction of the turning knife when cutting

3. Paper, ink (especially black ink), dry oil and compound glue with suitable properties should be selected for the anodized aluminum hot stamping foil. The hot stamping parts

must be kept dry to avoid oxidation or damage to the bronzing layer

4. general packaging: 0.64m*l20m in a roll, one box for every 10 rolls. You can also customize large rolls with a width of 0.64M and a length of 240m or 360m, or other special specifications

5. Store in a cool and ventilated place against pressure, moisture, heat and sun