Influencing factors and improvement suggestions for the quality of hot stamping
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In the cigarette printing process, the hot stamping process is widely used by various cigarette printing companies because it can make cigarette packets more colorful and colorful. However, it is not easy to obtain a perfect hot stamping product. It is necessary to select different types of anodized aluminum, set the corresponding hot stamping temperature, speed and pressure, and also have strict requirements on the quality of the operators. Based on years of work experience, the author believes that the factors affecting the quality of cigarette packages are mainly as follows.
The quality of the bronzing machine operators is generally not high
The participation of technicians in the electrochemical aluminum manufacturers is not enough when the new products are proofed.
The selection of the bronzing plate and the flat work are not in place.
Hot stamping process and printing process are not well combined
In this regard, the author proposes the following improvement suggestions.
(1) Strengthen technical training for operators of hot stamping machines
Through training, they can understand the basic knowledge of hot stamping process, master the structure, performance and hot stamping suitability of anodized aluminum; familiar with the structure, performance and characteristics of hot stamping machine, master large-area hot stamping and small text, pattern and thin line hot When printing, how to set and adjust the parameters of the equipment; master the inspection method, inspection index and selection principle of the electrochemical aluminum. Through training, their technical knowledge and operational skills are closely integrated, which improves their overall quality and lays a solid foundation for improving product quality and production efficiency.
(2) Invite technicians of electrochemical aluminum manufacturers to actively participate in the proofing work of new products.
The technicians of the electrochemical aluminum manufacturers are not only familiar with the structure, performance and characteristics of their products, but also have many technical problems involved in the solution. They have rich practical experience, so they can guide our work with their practical work experience. For example, how to select the electrochemical aluminum according to the characteristics of the hot stamping pattern; how to determine the technical parameters of the electrochemical aluminum according to the proofing effect and the structural performance of the hot stamping machine, combined with the setting of the hot stamping temperature, pressure, speed and other parameters. (ie, color layer, primer, model, brightness, fastness, clarity, scalability, etc.), custom production.
(3) Do a good job in the selection of the bronzing plate and the leveling work
Whether the hot stamping pattern can truly reproduce the original, the first selection work is the basis. The hot stamping plate requires good heat transfer performance, pressure resistance, wear resistance, and deformation, and it depends on whether the layout is smooth, smooth, and whether the corrosion depth reaches hot stamping. Requirements, whether the lines and characters are clear, whether they conform to the original, and strictly select the qualified bronzing plate according to the hot stamping process index.
Secondly, do a good job of the bronzing version of the padding work, according to the characteristics of the hot stamping pattern, select the pad material, such as hot stamping small text, pattern and thin lines, choose the pad material with high hardness, then use the pad with low hardness when fine-tuning Materials; for hot stamping faults such as hot stamping, reverse pull, hot stamping paste, etc., after analyzing the reasons, then formulate specific solutions.
(4) Do a good job in combination with the printing process
Hot stamping is a process of adding icing on the printing process of cigarette packets. Generally, hot stamping is performed on printed patterns. Therefore, the nature of printing ink under the hot stamping pattern will directly affect the quality of hot stamping. This is because hot stamping The pattern is realized by transfer and bonding of the dye layer of the electrochemical aluminum to the ink layer. The printing ink contains the wax material, the thickness of the printing ink layer, and whether the ink is crystallized, etc., which will affect the electrochemical aluminum dyeing. The combination of the layer and the ink layer, if the control is not good, there may even be hot stamping failures such as hot stamping, hot stamping, and reverse pulling.
Therefore, it is very important to combine the hot stamping and printing processes. Under the premise of ensuring the printing quality, the formula of the printing ink used and the thickness of the printing ink layer should meet the needs of the hot stamping process as much as possible. In order to produce a qualified product.
Tobacco hot stamping is a complex system engineering that requires the technical cooperation between the various processes, and requires the operator to have the corresponding process operation skills and the acuity of handling hot stamping quality problems. Table 1 is the common faults and solutions for the hot stamping of cigarette packets summarized by the author. I hope that I can help you solve the practical problems in production, and do fine-printing and hot-printing products to add luster to the cigarette packs.
While doing the above work, the relevant technical parameters will be further improved, the operation process will be further standardized, and the standardization and standardization of production will be realized. The quality problem of the hot stamping of cigarette packets will be completely solved, and the production efficiency will be steadily improved.