¡¡¡¡Hot stamping is a key post processing process in the production of cigarette bags. Hot stamping is a common way at present. It can transfer the electrified aluminum to the surface of blanching products by pressing and heating. In the process of hot and hot stamping of tobacco, there are many factors affecting the effect of stamping, among which, the pressure of stamping is one of the main factors. Next, the author will combine the practice experience of many years, and briefly explain the influence and adjustment method of the hot stamping pressure on the effect of the smoke package.
¡¡¡¡If the stamping pressure is too high, the hot stamping pattern on the surface of the cigarette bag will easily appear color change and anti pull phenomenon, or even damage the bronzing plate. Even if it did not damage the bronzing plate, it will greatly reduce the service life of the bronzing plate and increase the production cost. At this point, the overall decompression or local decompression can be used to solve the problem. The overall decompression is to directly reduce the pressure parameters of the device, while partial decompression is to reduce the pressure increasing paper in the single part or small area, and the specific operation depends on the actual production.
¡¡¡¡If the stamping pressure is too small, the stamping pattern on the surface of the cigarette bag is prone to serious loss of gold and quality defects. At this time, the method of integral pressure or local pressure can be adopted to solve it. The whole pressure is directly increasing the pressure parameters of the equipment, while the local pressure is to increase the pressure increasing paper in the single part or small area, and the specific operation depends on the actual production.
¡¡¡¡That is, the whole operation method of decompression and overall pressure applied to ordinary hot stamping, this is because the ordinary version and the hot stamping bearing contact surface is a stable surface, especially the pressure balance of large stamping products the most exquisite is full, if the operation method of local pressure, it is easy to due to local pressure without the influence of uneven pressure balance sheet, which is caused by repeated fill pressure and affect the production efficiency and did not reach the effect of pressure compensation. Moreover, the ordinary stamping process is more stable and the stamping pressure is relatively easy to control.
¡¡¡¡Local decompression and partial pressure of the operating method is suitable for three-dimensional printing, this is because the stereo bronzing version and hot material contact surface is uneven, so the graphics and text parts prone to gold, fall off point or edge paste gold phenomenon, and local pressure can accurately adjust the local stress problems that not only can improve the production efficiency, and to improve the stamping plate resistance rate, saving the cost of production. It should be noted that when the partial pressure is adjusted in the cigarette stereoscopic hot stamping, it is better to use the hand to tear up the pressure paper and stack it into a pagoda, so that it not only helps to exclude the air in the hot stamping part, but also makes the transmission pressure more stable and even.
¡¡¡¡We know that between stamping stamping pressure, temperature, speed three influence each other, so in the hot stamping process, stamping products if slight gold paste phenomenon, may be appropriate to enhance the speed; if the stamping products appear off point, slightly hot stamping is not the case, may be appropriate to increase the stamping pressure, temperature or improve stamping. Appropriate to reduce the speed of equipment.
¡¡¡¡In addition, because the edge of the new three-dimensional bronzing plate is usually sharp, there is no such problem in the general bronzing plate. Therefore, minor treatment should be done before the first use of the machine. Otherwise, it will bring a lot of trouble to the loading process. For example, mold edge burr grinding with fine sandpaper, plate or brush with alcohol on the page were slightly polished, this is not only conducive to the installed version, greatly improve the loading efficiency, will not appear when stamping hot stamping products and part of quality problems are caused by the pressure in the gilded version too sharp edge, so as to ensure the hot stamping the products meet customer quality requirements.