Hot stamping refers to the hot stamping process, and its main material is anodized aluminum foil.

The hot stamping process is a very important post-printing process in packaging and printing. It mainly hot stamps patterns, text, and lines to highlight the name and trademark of the product. Angpai beautifies products, thereby improving the grade of packaging products. Electrochemical aluminum hot stamping is also often used for post-press processing of hardcover book covers, greeting cards, calendars and other products.

Process Principle

The hot stamping process uses the principle of hot pressure transfer to transfer the aluminum layer in anodized aluminum to the surface of the substrate to form a special metallic effect. Anodized aluminum foil is usually made of It is composed of multiple layers of materials. The base material is often PE, followed by separation coating, color coating, metal coating (aluminized) and glue coating.

When the electrochemical aluminum is pressed by the hot stamping plate and substrate, the electrochemical aluminum is heated to melt the hot-melt silicone resin layer and adhesive agent on it. At this time, the heated silicone resin melts The viscosity becomes smaller, and the viscosity of the special heat-sensitive adhesive increases after it is heated and melted, causing the aluminum layer to peel off from the anodized aluminum base film and transfer to the substrate at the same time. As the pressure is removed, the adhesive quickly cools and solidifies, and the aluminum layer firmly adheres to the substrate, completing a hot stamping process. Extended information

Product application

1. Ordinary gold, laser gold hot stamping.

It can be used for hot stamping on most products, including gold cards, silver cards, laser cards and glass cards. Its application is relatively common.

2. Positioning holographic hot stamping.

Holographic laser positioning anodized aluminum is a special process application in design. It has corresponding anti-counterfeiting patterns, which can greatly improve the anti-counterfeiting ability of the product and also improve the grade of the product. This kind of anodized aluminum is generally produced domestically. Compared with imported products from abroad, the price is cheaper, but the hot stamping performance is slightly worse. Holographic laser positioning anodized aluminum has a great relationship with the control of hot stamping temperature, hot stamping pressure and vehicle speed, and even the hot stamping machine model.

3. Special applications of anodized aluminum in technology.

First ironing and then printing is a new idea in the cigarette label design and printing industry. The application of this process has very high requirements for anodized aluminum. In addition to achieving the requirements of accurate hot stamping position, smooth and bright surface, balanced and uniform pressure, no blistering and no pasting, special attention must be paid to the fact that there should be no obvious pressure on the edge of the hot stamping pattern. The hot stamping anodized aluminum must have good adhesion on the hot stamping surface and no obvious scratches or scratches.

Baidu Encyclopedia - Hot Stamping

Baidu Encyclopedia - Hot Stamping Technology