At present, the domestic market can be seen, for paper processing of bronzing machine, classification from the working principle, it can be divided into flat flatten round flattened, Rotary categories. Each platen stamping machine, and a representative of the brand: Swiss Bobst, Switzerland custard domestic Asia and China, Yutian like. Stamping die-cutting machine is the most popular dual platen stamping models, the most widely used manual tipping machine also belong platen stamping machine in this category. Round flatten hot stamping machine, and a representative of the brand: Germany Stowe take FOILJET, as well as for supporting the rotary presses and other brands. Several more stamping process has its own characteristics, can not simply say that it is better than some other process technology, users should consider their actual production, the use of appropriate technology, the purchase of suitable equipment.
In the field of package printing, platen stamping process due its use devices usually have bronzing, die-cutting dual function, it has been the most widely used. For users, the bronzing traffic instability, or not enough to ensure the device is operating at full capacity, the use of dual platen stamping die-cutting machine, we can guarantee investment returns. Meanwhile, on the process, the platen gold foil stamping is the most mature technology, its gilt version of the production in the country can support resolve. In addition to the general plane bronzing version bronzing version can also be made into a three-dimensional sculpture, reaching gold foil, embossing a molding.
High-speed platen speed stamping machines, has now reached a relatively high level, such as Bobst stamping machines, the production rate has reached 7000-7500 sheets / hour, stamping holograms reached 6,000 / hour speed. Asia and China domestic hot stamping machine has reached 5,000 / hour nominal speed.
But platen technology also has its drawbacks, such as: the effect of a large area of ??gold foil as good as the other two processes, because the pressure platen stamping machine are flat pressure, pressure round flatten or Rotary bronzing machine is linear pressure .
For the same reason, the domestic large-scale use of aluminum foil jams, but also to avoid large areas of gold foil.
Round flatten hot stamping gold foil version using flat and round impression cylinder. Bronzing version of the plane is easy to manufacture, and round the impression cylinder and make stamping pressure becomes linear, make up the platen stamping process deficiencies.
Round flattened gilt drawback is unable to do stamping, embossing molding, and production speed is relatively slow, usually in the 2000-2500 sheets / hour.
In the United States and Europe, with gold foil for the expertise of printers, usually have both platen and round flatten two tipping machine, two processes complement each other, to overcome its shortcomings, while meeting the needs of different designs.
Domestic common round flatten hot stamping machine and other Taiwan-funded perseverance. Its equipment is converted from old-fashioned letterpress printing from Heidelberg, it may be limited by processing capacity, lower equipment precision, but low prices, it gained considerable market share. Rotary crafts usually applied to rotary printing production lines, such as narrow web flexo presses, to achieve on-line processing. In recent years, there is a tendency to large rotary device equipment change, such as France Chambon equipment. Germany is but Stalin took the king Stowe Rotary stamping process for sheetfed equipment.
Rotary stamping biggest advantage is speed. As Stowe take FOIJLET type bronzing machine speed can reach 12,000 / hour. Rotary bronzing also very obvious shortcomings, the first gold foil version, not only expensive, but also demanding, we must consider the thermal expansion coefficient of the material, taking into account a variety of factors the plate wear. Secondly, the foils have special requirements, namely: You must be able to quickly transfer, the current domestic aluminum foil is difficult to meet this requirement, it must use expensive imported special materials, otherwise, its high production speed is just empty talk.
In addition, bronzing and irregularities must be on both units to achieve, even without considering its registration error, need at least two sets of molds, potentially increasing costs. And once the market changes, bronzing business volume shrinking, high-value equipment is probably the pile of scrap metal, no other function, the investment risk is quite high. All these have limited the Rotary stamping process applications. Unless the user can be confident that their business is a single bronzing products, rarely need to replace the product, but it is possible to ensure recovery of the amount of investment in equipment, otherwise such equipment in China is difficult to really enter the market. This is why this type of equipment in the country rarely seen reasons.
Considering the above characteristics of a variety of crafts, with its own production needs, choose the right technology and equipment, the user is in the investment need to grasp.