The importance of controlling hot stamping pressure during the hot stamping process

If the hot stamping pressure is too high, the hot stamping pattern on the surface of the cigarette pack is prone to discoloration, reverse pulling, and even damage to the hot stamping plate. Even if the hot stamping plate is not damaged at that time, it will greatly reduce the service life of the hot stamping plate and increase production costs. At this point, overall or local decompression can be used to solve the problem. Overall pressure reduction refers to directly reducing the pressure parameters of the equipment; Local decompression refers to reducing the amount of pressure paper in a single or small area, depending on the actual production situation. If the hot stamping pressure is too low, the hot stamping pattern on the surface of the cigarette pack is prone to serious quality defects such as gold and dots falling off. At this point, the solution can be achieved by applying overall or local pressure. Overall pressurization refers to directly increasing the pressure parameters of the equipment; Local pressure refers to adding pressure paper to a single assembly area or a small range, depending on the actual production situation. In addition, in practical situations, the performance of production and processing equipment also has a certain impact on the production effect, and equipment with good performance often has a higher price.

It should be noted that the operation methods of overall pressure reduction and overall pressure increase are suitable for ordinary hot stamping, because the contact surface between the ordinary hot stamping plate and the hot stamping object is a stable plane. Especially for large format hot stamping products, the most important thing is the pressure balance of the entire plate. If the operation method of local pressure adjustment is used, it is easy to affect the pressure balance of the entire plate due to uneven local pressure, resulting in repeated pressure supplementation and affecting production efficiency without achieving the pressure supplementation effect. Moreover, the ordinary hot stamping process is relatively stable, and the hot stamping pressure is also relatively easy to control. The operation methods of local pressure reduction and local pressure are suitable for three-dimensional hot stamping, because the contact surface between the three-dimensional hot stamping plate and the hot stamping object is uneven, so the graphic and text parts are prone to falling off, falling off, or edge sticking. Local pressure adjustment can accurately adjust these local pressure problems, not only improving production efficiency, but also helping to improve the durability of the hot stamping plate and save production costs. It should be noted that when performing local pressure adjustment in the three-dimensional hot stamping of cigarette packs, it is best to tear off the pressure paper by hand and stack it in a pagoda shape. This not only helps to eliminate the air in the hot stamping area, but also makes the pressure transmission more stable and uniform.

In general, with the premise of having high-performance mechanical equipment, mastering the above experience and methods, and flexibly applying them over time, ensuring the quality of hot stamping is not a problem.