First, the bronzing version is the primary factor to ensure the quality of bronzing
At present, the photo-etching process and electronic engraving technology are mainly used for making bronzing plates, and the materials are usually copper plate or zinc plate. The copper plate material is exquisite, and the surface finish and heat transfer effect are better than the zinc plate. The use of high-quality copper plate can improve the gloss and outline clarity of bronzing graphics. The traditional photo-etching technique for making bronzing plates is simple and low-cost. It is mainly used for text, thick lines, and general images. For finer, uneven graphics and other bronzing plates, secondary roasting or electric engraving technology is required. The bronzing version produced by electro-engraving can express rich and delicate level changes, which greatly expands the packaging performance. This process is beneficial to environmental protection, but the investment in electro-engraving equipment is large. At present, the depth of engraving is not ideal, and it is easy to cause bronzing "pasting. The production technology of holographic anti-counterfeiting bronzing plate is relatively high. Previously it was mainly made in Taiwan or abroad. The plate-making period was longer. It was only used for packaging of fixed and large-volume products. At present, there are several units in Yuncheng, Shanxi, Beijing and Shanghai. gF7 China Design Online China Creative Design Portal
Second, the bronzing equipment "workers want to do their best, must first sharpen their tools"
The selection of bronzing equipment is a key factor in determining the quality of bronzing. The sheet-foil stamping machine has three types: flattening, round flattening, and round flattening. At present, the largest application is the flattening type, mainly including: Shanghai Yahua Printing Machinery Co., Ltd. TYM series die-cutting bronzing two Using machine, TYMl020 automatic bronzing die cutting machine of Tangshan Yuyin Group Co., Ltd., MK series automatic bronzing die cutting machine of Tianjin Youheng Machinery Industry Co., Ltd., the maximum bronzing speed is 5000 hours. The FOLLJETFBRl04 hot stamping machine from Stoner in Germany is a representative of round pressing. Using the design concept of the offset printing press, the maximum hot stamping speed can reach 10,000 hours. It is currently the fastest single stamping equipment in the world. The three stamping methods of round flattening, round flattening and flat flattening each have their own advantages and disadvantages: the implementation of round flattening and round flattening hot stamping is linear pressure, the total pressure is small, and it is easily completed with a relatively small pressure Large-area hot stamping on the ground, smooth movement, and high production efficiency of the round pressing round type, especially suitable for hot stamping of large batches of live parts, but because the copper plate arc surface processing is more difficult, the production cost is higher, and the heating roller is also more difficult to heat than the plane. Flat and flat operation is flexible and convenient, and is more suitable for short version products. Compared with imported bronzing equipment, domestic bronzing equipment has obvious advantages in performance and price. The price of domestic machine is only equivalent to l5 ~ 14 of the price of similar foreign products, but the overprint accuracy, stability and function of imported machine are significantly better than domestic. The machine is also more durable than the domestic machine, and is more suitable for the processing of fixed batches of high-end packaging products. Therefore, product type and batch size are the key to determine the selection of bronzing equipment. Whether it has high-end bronzing die-cutting equipment such as BOBST has become the first choice for customers in the industry.
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