Composition of anodized aluminum
Nowadays, with the improvement of modern people's life, people's aesthetics are constantly improving. People's requirements for products are not only limited to the practicality of the products themselves, but also require them to conform to the trend of the times and to innovate and improve the packaging. . Because bronzing is the only printing technology that produces a shiny, non-discoloring metallic effect on paper, plastic, cardboard, and other printed surfaces. Therefore, bronzing is widely used in various fields of printing and packaging. In the packaging of goods, you can use the bronzing process to make the products have special effects such as bright, bright, laser, laser, wire drawing, mirror, wood grain, metal and ink. The hot stamping
after hot stamping
paper shows strong metallic luster. The color is bright and bright, and the gloss is high. Moreover, the processed products of bronzing paper look high-end, top grade, and are popular among the public. Thereby improving the rapid development and wide application of hot stamping
Hot pad printing technology, commonly known as bronzing, bronzing, scientific name, aluminum stamping, is a special printing process without ink. It uses a certain pressure to temperature, using a stencil mounted on the hot stamping machine to make printed and hot stamping foil Pressing on each other in a short time, the metal foil or pigment foil
is transferred to the surface of the burned print according to the image of the hot stamping stencil. In terms of specification, bronzing refers to the process of hot stamping of electroless aluminum hot stamping foil (Hot stamping paper
) onto the surface of the substrate under a certain temperature and pressure.
Electrochemical aluminum is the chemical reaction of some chemical elements. The essence is that a chemical reaction is produced by various processes such as a coating machine, and the specific operation steps are as follows.
Base film layer
Domestically, a 16um thick biaxially stretched polyester film is generally used; the main function is to support the continuous action when attached to the top coating and to facilitate hot stamping. This indicates that the base film layer cannot be deformed due to temperature rise during the hot stamping process, and should have high strength, tensile strength, high temperature resistance and the like.
Generally, it is mainly coated with a silicone resin or the like. The main component of the second release layer in the electrochemical aluminum foil is silicone resin. Its main function is to quickly remove the color, aluminum and rubber layers after hot stamping, whether before heating or pressing. The film is transferred and bonded to the surface of the object to be stamped, which means that one process among the electrochemical aluminum and the composition is a release layer, and a chemical substance (silicone resin) is contained in the release layer. Mainly to help the material transfer well, and the finished hot stamping material we do, the main function is to put all kinds of hot stamping materials on or to be printed on various items, and also printed on it. Effect. The main component in the base film layer is (polyester film). It is mainly used to prevent the stretching and change during hot stamping during the hot stamping process, so that the hot stamping process is intact. There is no slight change due to high temperature. And high strength, high temperature resistance, tensile strength and other properties. The detachment layer should have better detachment performance, otherwise the image after hot stamping will be blurred, and the bottom will be embossed, which will affect the quality of the hot stamping product.
The main components of the color layer are synthetic resins and dyes suitable for film formation, heat resistance and transparency.
The main role of the color layer is two:
1. Display color.
2. The image of the aluminized layer that protects the hot stamping on the surface of the article is not oxidized. The color of the electrochemical aluminum foil is yellow, yellow, gray, red, green, etc. as needed. The color of the color layer is imparted with luster after the aluminum plating layer, and the color has a certain change, such as yellow gold after aluminum plating, silver after gray aluminum plating, and the like. The requirement for color coating is fine without any small particles, so as to avoid the occurrence of blisters and break the uniformity of coating.
The aluminum plating layer is a film in which a colored layer or the like is placed in a vacuum chamber in a continuous aluminum plating machine, and under a certain degree of vacuum, the aluminum wire is melted by resistance heating and continuously evaporated onto the color layer of the film to form a film. The aluminum layer is mainly used to reflect light, change the color of the color layer, and make it shiny.
The adhesive layer is generally dried on the aluminum layer by a coater using a fusible thermoplastic resin (of various types), and is dried to form an adhesive layer. The main function of the adhesive layer is to bond the hot stamping material to the object to be burnt.