1、 Hot stamping plate is the primary factor to ensure the quality of hot stamping
At present, the production of hot stamping plates mainly uses photographic etching technology and electronic carving technology, with commonly used materials being copper or zinc plates. The copper plate material is delicate, and the surface smoothness and heat transfer effect are better than zinc plate. Using high-quality copper plate can improve the glossiness and outline clarity of hot stamping images and texts. The traditional photo etching technology for making hot stamping plates is simple and cost-effective, mainly used for text, bold lines, and general images; For fine-grained and unevenly sized hot stamping plates, secondary etching or electroengraving technology should be used. The production of electroengraving hot stamping plates can express rich and delicate hierarchical changes, greatly expanding the packaging performance ability. This process is beneficial for environmental protection, but the investment in electroengraving equipment is relatively large, and the depth of engraving is not ideal enough, which can easily cause hot stamping "pasting". The production technology requirements for holographic anti-counterfeiting hot stamping plates are relatively high. Previously, they were mainly produced in Taiwan or abroad, with a longer plate making cycle and were only used for packaging fixed and large quantities of products. At present, there are several units in China, including Shanxi Yuncheng, Beijing, and Shanghai, that can produce.
2、 To do a good job in ironing equipment, one must first sharpen the tool
The selection of computer stamping machine equipment is a key factor in determining the quality of stamping. There are three types of sheet metal stamping machines: flat press, circular press, and circular press. Currently, the most widely used are flat press machines, mainly including Shanghai Yahua Printing Machinery Co., Ltd. TYM series die-cutting and stamping dual-purpose machines, Tangshan Yuyin Group Company's TYMl020 automatic die-cutting machines, and Tianjin Youheng Machinery Industry Company's MK series automatic die-cutting machines, with a maximum stamping speed of 5000 sheet hours. The German STOLNA FOLLJETFBRl04 hot stamping machine is a representative of circular stamping. Using the design concept of offset printing machines, the maximum hot stamping speed can reach 10000 sheet hours. Currently, it is the fastest single sheet hot stamping equipment in the world. The three stamping methods of round stamping, round flattening and flat flattening have their own advantages and disadvantages: round stamping and round flattening hot stamping are performed under linear pressure, with low Total pressure. Large area field gilding can be easily completed with relatively small pressure. The movement is stable, and the round stamping production efficiency is high, which is especially suitable for large quantities of live parts gilding. However, because the processing of the copper plate arc surface is difficult, the production cost is high, and the heating drum is also more difficult than the plane heating. The flat pressing operation is flexible and convenient, making it more suitable for short version products. Compared with imported stamping equipment, domestic stamping equipment has a significant advantage in terms of functional price. The price of domestic machines is only equivalent to 15-14% of the price of similar foreign products. However, the printing accuracy, stability, and functionality of imported machines are significantly better than domestic machines, and they are also more durable and suitable for processing fixed batch high-end packaging products. Therefore, product type and batch size are the key factors determining the selection of stamping equipment. Possessing high-end hot stamping die cutting equipment such as BOBST has become the preferred prerequisite for customers in the industry.
3、 Applicability of Computer Stamping Machine
The so-called hot stamping suitability refers to the selection of the model of anodized aluminum and the matching between factors such as hot stamping speed, temperature, pressure, etc. Accurately grasping the suitability of stamping is the most important means to improve the quality of stamping when hardware such as equipment is fixed. Below is an analysis of some quality issues reflected in actual operation, in order to scientifically grasp the suitability of hot stamping.