The steel plate coating technology is a processing technology in which the plastic film and the metal plate are hot-pressed at high temperature, and the film is attached to the metal plate. Lamination technology was born in Japan in 1977. It was originally used for can making, which can replace internal coating and external coating technology. So far, it has developed into various fields such as interior and exterior decoration of building materials, home appliances, and automobiles. Since the lamination process does not use adhesives and solvents, it does not contain formaldehyde, and the plastic film can be treated with decoration and anti-staining, which ensures the health of the human body and also plays a role in environmental protection.
The laminated sheet used in the can industry, commonly known as Laminated Steel, is made of PP film and tinplate laminated. The inner side of traditional metal cans must be coated, and the substances contained in the coating method will have harmful effects on the human body and the environment, especially edible cans. The current treatment method is to use resin on the inner wall of the can for coating. . However, the paint used in this coating process contains environmentally harmful substances – Bis-phenol A (Bis-phenol A) substances, which are internationally recognized as environmental hazards, and may cause dissolution problems. Once dissolved Exceeding the standard will have adverse effects on the human body. And the serious consequences of this problem have attracted attention at home and abroad.
The birth of steel plate coating technology is the progress of metal can production. With its wide application, the traditional metal can production process and technology will be subverted, and the productivity, production cost, cleanliness, environmental protection and other aspects will also take a big step forward.