Technical Explanation of Hot Stamping and Bumping (in Chinese)

Gold foil needs to match materials

In addition to the hot stamping machine, there must also be the cooperation of hot stamping foils. The hot stamping foils may seem thin. In fact, it consists of five layers of materials.

Many people have misunderstood that a kind of gold foil can be used to iron any kind of paper products. In fact, many kinds of gold foil are used to match different types of hot materials, such as PP film or polished paper products, metallic ink, cloth, PVC glue, etc. Hot and thin line stripe or large field and other materials and printed materials, must choose different materials of hot gold foil to cooperate. Therefore, the price of flashing hot stamping foils ranges from RMB 10 to RMB 1,000. It also depends on the nature of the country of origin and the material. The price of matt-colored ironing cloth and scratchable gold foil is about 700, and that of laser foil is RMB 1,000. . Gold foil manufacturers have manufactured 10 kinds of gold foils of different colors and different qualities to suit different paper products. On a scale, a well-managed hot stamping factory also makes samples of hot stamped gold foils and additional numbers for customers' selection. Customers can also designate a brand. Hot stamping foils, such as the international toy company "Barbie" dolls, will specify a certain brand, a certain number of gold foil.

Apply different media

Followed by the hot stamping model, commonly known as the electric version, the electric version was commonly used in Hong Kong, and has a long history, in the early printing of the so-called font size, this is used for letterpress printing, after the hot stamping industry, later letterpress printing With the electric version (ZINC zinc is used as a plate material), the bronzing industry has also followed its use. In recent years, Hong Kong has also begun to use the magnesium version (Magnesium magnesium as the plate material). The magnesium plate has a variety of thicknesses, and the thicker ones can be etched (Photeched) and deeper. They are used for hot stencils, patterning or impact/striking.
(embossing/debossing), the effect will be better, and because it is more durable, the large number of hot stamping does not have to be changed frequently. Another copper alloy (copperalloy) as a plate material, because the hardness is stronger than zinc, magnesium, can retain a better image level, high-definition, reduce the molding surface sand, impress millions of stone can also be. The above materials made of zinc, magnesium and copper alloys are suitable for single-layer hot stamping and punching. (singlelevel, bevelledengraving).

There is also a brass plate (composed of copper, tint and lead) with a thickness of about 7mm. It has a low hardness and can be carved. It is suitable for hand-carving and motor engraving. It is regarded as an engraving plate with distinct layers and is multi-layered. Multi-level, sculptured engraving for special beveled engraving, can be used for punching/debossing, embossing, three-dimensional embossing, or one-time hot stamping with convex/concave, also due to the complicated manufacturing process. The price is very expensive, and depends on the complex requirements of the graphic to determine the price, and the copper plate needs to be carved in foreign countries. There are no manufacturers in Hong Kong for the time being.

Bronzing attention to temperature pressure

If the bronzing effect is good, it is necessary to have a suitable gold foil with good thermal stability, and it is also necessary to cooperate with the bronzing machine type, such as flat pressing and rolling type, which have different effects, and the matching temperature, pressure, and hot pressing pressure. Elements of time.