How to Use Equipment to Improve the Quality of Hot Stamping Process

With the improvement of the national economy and the development of the printing and packaging industry, people demand the packaging of products: high-end, exquisite, environmentally friendly, and personalized. In the post-press processing of packaging products, the electro-aluminum hot stamping process is favored by people for its unique surface finishing effect, and has application in high-end packaging such as banknotes, cigarette labels, medicines, and cosmetics.

Electro-aluminum hot stamping refers to hot stamping, hot silver stamping and other hot stamping material hot stamping processes. In order to facilitate discussion, the following is the general name of hot stamping aluminum foil stamping. There are two main functions of bronzing: one is surface decoration, which increases the added value of the product. Hobbies and celebrations are the national traditions of our country. The combination of bronzing and embossing techniques is used to highlight its luxury. The second is to give the products higher security performance. The holographic orientation is used to stamp the trademark logo to prevent counterfeiting and brand names. At the same time, bronzing is very capable of representing the individualization of product packaging and is safe and environmentally friendly. Therefore, many high-end packaging uses the bronzing process, so how to improve the quality of bronzing?

First, bronzing version High-quality bronzing version is the primary factor to ensure the quality of bronzing. At present, bronzing Plates are mainly produced by photographic etching techniques and electronic engraving techniques. The materials are often used for copper plates or zinc plates. Copper Plate material is delicate, surface finish, heat transfer effect are better than zinc plate, the use of high-quality copper plate can increase the bronzing graphic gloss and outline definition. The traditional photographic corrosion technology makes the bronzing plate process simple and low cost, mainly used for text, thick lines, general images; for the finer, uneven thickness of text and graphics, etc. need to use the second rotten or electric carving technology. The electric carving production bronzing edition can express rich and delicate level changes and greatly expand the packaging performance. This process is conducive to environmental protection, but the investment in electric carving equipment is relatively large, and the depth of carving is not ideal enough, and it is easy to cause stamping. Holographic anti-counterfeit stamping production technology requirements are relatively high. Previously, they were mainly produced in Taiwan or abroad, and the plate making cycle was long. It was only used for the packaging of fixed and large-volume products. At present, there are several units that can be produced in Shanxi Yuncheng, Beijing and Shanghai.

Second, bronzing equipment Selection of bronzing equipment is a key factor in determining the quality of bronzing. Sheetfoil hot stamping machine has flat pressing, round flat pressing and round pressing. There are three types of flat pressing machines at present. The main applications are: Shanghai Yahua Printing Machinery Co., Ltd. TYM series die cutting hot stamping two Machine, Tangshan Yuyin Group's TYMl020 automatic bronzing die-cutting machine, Tianjin Hengheng Machinery Industry's MK series automatic bronzing die-cutting machine, the highest bronzing speed is 5000 sheets/hour. STEUER FOLLJET FBRl04 hot stamping machine is represented by round press circle. Using the design concept of offset press, the maximum hot stamping speed can reach 10000 sheets/hour. At present, it is the fastest equipment for international sheet-fed stamping.

Round press, round press and flat press Three types of embossing hot stamping machines have their own advantages and disadvantages: Round press round and round press Hot press implementation is line pressure, total pressure is small, easy to complete with relatively small pressure A large area of ​​gilding in the field, smooth movement, high round-round production efficiency, suitable for large quantities of live bronzing, due to copper arc surface processing more difficult, higher production costs, heating roller is also more difficult than flat heating. Flat press operation is flexible and convenient, and it is more suitable for short version products. Domestic bronzing equipment has obvious advantages in terms of performance and price compared with imported gilding equipment. Domestic machine prices are only equivalent to l/5-1/4 of the price of similar foreign products, but the overprint accuracy, stability, and function of imported machines are all high. Obviously better than the domestic machine, but also more durable than the domestic machine, more suitable for fixed bulk high-grade packaging products processing. Therefore, product type and batch size are the key factors that determine the selection of bronzing equipment. The high-end bronzing die cutting equipment such as BOBST has become the preferred condition for customers in the industry.