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Dongying tell you the composition of hot stamping foil

source:未知   time:2017-12-19 22:00   quantity:

Gold foil paper structure is divided into: the base layer, peel layer, color layer, plating layer, glue layer.
The first floor: the base floor
The general use of 12μm-25μm thick biaxially oriented polyester film, the main role is to support the coating attached to its top, to facilitate the processing of continuous hot stamping. It has anti-stretch, instantaneous high temperature performance.
Second layer: peel layer
It is usually coated with silicone resin. The main role is to make the pigment, aluminum, plastic layer after the stamping can be quickly separated from the polyester film was transferred to the surface of the object to be hot stamping. Off from the layer should have a good off performance, otherwise it will make the text of the hot foil blurred, open flowers, affecting the quality of hot stamping products.
The third layer: the color layer
The main ingredients are film forming, heat resistance, transparency, suitable synthetic resin and dye. Commonly used resins are polyurethane nitrocellulose, melamine formaldehyde resin, modified rosin and so on. Resin and dye will be dissolved in organic solvent during production to form color paste, then coated and dried. The main role of two: one is to show the color; the second is to protect the hot stamping on the surface of the aluminum coating graphic is not oxidized. The color of aluminum foil is golden, orange, gray, red, blue, green and other. After the color of the color layer through the aluminized layer is given a gloss, the color has a certain change, such as yellow gold after plating by drilling, gray and aluminum become silver and so on. The color coating requirements are delicate without any small particles, so as to avoid trachoma, uniform coating.
The fourth floor: plating
The color coated film, placed in a vacuum continuous aluminum machine within a vacuum chamber, under a certain degree of vacuum, by resistance heating, the aluminum wire is melted and continuously evaporated to the color film layer, the aluminum layer is formed . The main function of the aluminum layer is to reflect the light and change the color of the color layer to make it appear metallic luster.
Fifth layer: glue layer
Generally fusible thermoplastic resin, according to the different materials are hot stamping, the choice of different resins, the resin dissolved in an organic solvent or dubbed the aqueous solution, coated by a coater on the aluminum layer, the glue is dried Layer, its main role is to hot stamping material bonded to be hot objects. Hot stamping, the phenomenon of hot on the phenomenon of one of the main reasons is that the glue layer is not complete, the target of different hot stamping foil type selection should also be different

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