Hot stamping materials and equipment

The essence of hot stamping is the transfer process, which is the process of transferring the pattern on the surface of the aluminum foil to the substrate by the action of heat and pressure. When the printing plate is heated up to a certain degree with the attached electric heating plate, it is imprinted with the paper through the electro-aluminum film, and the adhesive layer, metal aluminum layer and color layer attached to the PET film are transferred by the effect of temperature and pressure. Printed on paper.

Hot Stamping Material

According to the type of materials can be divided into: hot stamping aluminum foil, hot stamping foil, hot stamping foil, metal foil stamping and other hot stamping foil stamping. The following focuses on the hot stamping of anodized aluminum material, which is a stamping material made by vacuum evaporation of a layer of metal foil on a thin film substrate.

1 The first layer is a base film layer, also called a film base layer, which serves as a support for other layers, and is a polyester film or polyester having a thickness of 12, 16, 18, 20, and 25 μ.

2 The second layer is the separator (release layer), which facilitates the separation of the base film and the electro-aluminum foil during hot stamping.

3 The third layer is the dyed layer (protective layer): Provides multiple color effects while protecting the aluminum layer.

4 The fourth layer is an aluminized layer: the reflection of light, showing a metallic luster, the use of vacuum aluminum plating method. The specific principle is to place the color coated film in a vacuum chamber in a vacuum continuous aluminum plating machine. Under a certain degree of vacuum, the aluminum wire is melted and continuously evaporated to the color layer of the film by resistance heating. Aluminized layer.

5 The fifth layer is an adhesive layer that adheres the aluminized layer to substrates such as paper. Electrochemical aluminum foil is mainly made of gold and silver, with beautiful features, bright color, crystal eye-catching, easy to use, etc., suitable for hot stamping on paper, plastic, leather, coated fabric, organic glass, plastic and other materials. One of the most commonly used materials for modern stamping. Hot stamping effect.

Hot stamping equipment

The machine that can transfer the electro-aluminum foil hot stamping material onto the printed matter by hot pressing is called a stamping machine.

1 type and characteristics of hot stamping machine

1 divided by hot stamping method:

● Flat and flat, the hot stamping method is plane to plane.

● The circle is flat and its hot stamping method is hot stamping wheel to plane.

● Circle round, its hot stamping way for the hot stamping roller bearing roller.

2 according to the degree of automation: manual, semi-automatic, fully automatic.

3 according to the whole form: vertical, horizontal.

2. Basic mechanism of hot stamping machine

1 body frame, including the appearance of the fuselage and the paper delivery, delivery and so on.

2 stamping device, including electric hot plate, hot stamping plate, imprinting plate and bottom plate. The hot plate is fixed on the printing plate platform. The heating plate is equipped with a roundabout heating wire with a power of 600-250OW. The hot printing plate is a corroded copper plate or zinc plate, which is characterized by good heat transfer, non-deformation, pressure resistance and wear resistance. Imprinted plate is usually aluminum or iron plate; the bottom plate is an aluminum plate with a thickness of about 7mm, used to paste the hot plate;

3 Electro-aluminum transfer device consists of a reel, a feed roller and a feed roller, an anodized aluminum take-up roller, and a feed mechanism. Electro-aluminum is mounted on a reel, and the embossed aluminum passes between the two reels. The feed reel mechanism composed of a cam, a connecting rod, a ratchet, and a pawl drives the intermittent rotation of the reel. The intermittent rotation of the take-up reel will drive the feeding of the anodized aluminum. The feeding distance is set to the length of the hot stamping pattern. Hot stamped anodized aluminum rolls on the take-up roll.