Electro-aluminum hot stamping is a very important post-printing process in packaging and printing. It is mainly used for hot stamping patterns, texts, and lines to highlight the names and trademarks of products. Ang licensing, landscaping products, thereby improving the quality of packaging products. Electro-aluminum hot stamping is also often used in the post-press processing of hardcover book covers, greeting cards, calendars and other products.
The hot stamping process of anodized aluminum is as follows: the hot stamping plate heats the anodized aluminum, the peeling layer melts, and then the adhesive layer also melts, the adhesive layer adheres to the substrate at the time of imprinting, and the colored layer is separated from the base layer of the polyester sheet. Layers and colored layers remain on the substrate.
The stamping of electro-aluminum on the packaging can not only play a role in beautifying the product and improving the grade of the product, but also play a certain anti-counterfeiting effect.
Post-printing Hot stamping One of the purposes of increasing the hot stamping process is to improve product quality, but in practical applications, only reasonable use can achieve a multiplier effect. Conversely, not only does it fail to show the advantages of the product, but it also causes waste. The following points should be taken into account when using the electro-aluminum hot stamping process.
1. Product Design Considerations 1 The hot stamping location should be fully considered, ie the matching of the color and the printing color of the hot stamping text or pattern and the effect of the hot stamping process on the hot stamping.
2 Hot stamping on a large area should also take into account the hot stamping site and the printing pattern of the paper, which need to be based on product overlay accuracy, generally set to 0.2-0.5mm. Of course, it is necessary to take into consideration the stamping adaptability of the aluminum foil itself.
3 Consider the overall effect of hot stamping and the cost of hot stamping. For example, some products often only hot stamp the outline and text of the pattern, and do not directly stamp the pattern to achieve the effect of point lining; for certain aluminum-plated paper cigarette packs, the printing design can be achieved by first printing the transparent yellow and pressing the bumps. Replace hot stamping to reduce costs.
2. The effect of printing and hot processing before hot stamping The general hot stamping product must be printed before hot stamping. There are monochrome printing and multi-color printing; stamping and embossing, UV glazing, laminating, and then printing and molding after hot stamping Cut, paste boxes and other processing.
Pre-hot printing should pay attention to the following points: dark thin printing, the use of strong coloring ink, in the ink as little as possible to add anti-adhesive agent and retreat agent, try not to spray, printing ink, coating oil and anodized aluminum The matching of printability of hot stamping should also prevent the influence of ink crystallization on hot stamping.
After pressing, it is pressed and embossed and die-cut. The effect of the gluing box on the hot stamping is not great. Just take care to prevent the hot stamping foil from being scratched. If you want to use uV varnish after hot stamping, you should consider the acceptability of the electro-aluminum, that is, the surface tension of the electro-aluminum is greater than the surface tension of the UV varnish. If allowed, the hot stamping part of some products can be hollowed out. If UV inks are first printed and then hot stamped according to the process requirements, the stamping properties of the UV varnish should be checked first. Generally, the dyne pen is used to test the UV light film layer, and the surface tension can be more than 3.810-2N/m. Electrochemical aluminum hot stamping.
3. Selection of Hot Stamping Materials and Equipment Hot stamping materials and hot stamping equipment are the two most critical factors affecting the hot stamping effect.
1 Stamping Material Stamping material is anodized aluminum. There are many kinds of galvanized aluminum on the market today, including ceramic anodized aluminum and paper anodized aluminum. Glass electro-aluminum, etc.; complex grades, both domestic aluminum, real estate in Shanghai, Zhejiang, Fujian, and the United States. Japan-made, German-made imported aluminum, and their respective advantages and disadvantages. Here we mainly discuss paper aluminum.
The hot stamping adaptability of anodized aluminum includes surface finish, brightness, sharpness, hot stamping adaptability to graphic and small texts, surface flying gold and flash edge problems, etc., depending on the level of printed materials, packaging products, and anodized aluminum. The choice of price and hot stamping trade-offs.
2 stamping equipment Hot stamping equipment is widely used in the domestic hand-type hot stamping machine, the main hot stamping requirements are not very high packaging products. It has low cost. Small footprint, easy operation, strong hot stamping advantages, but the hot stamping of high precision products, the error is larger, higher reject rate. If you have a hot box, most printing companies in China choose Bobst Hot Stamping Machine. The hot stamping accuracy is very high, and the control of hot stamping temperature, pressure and speed is better than other hot stamping machines. At present, some domestic hot stamping machines are also highly accurate and the price is much lower than that of imported high-end equipment.
Printing after hot printing Hot printing is a top technology that is used in cigarette pack printing. Its three-dimensional effect is beyond the reach of other processes. After the hot printing, the large area laser electro-aluminum is generally stamped on the spot color ink, and then the UV ink is printed on the electro-aluminum. Its printing materials. Printing inks, printing equipment, and printers are highly demanding. The following points should be noted in this process:
1 Select an electro-aluminum with a surface tension of (4.0-4.6) X10-2N/m to ensure that the ink has good adhesion.
2 In the hot stamping process, it should be noted that hot stamping is not allowed to have paste version, reverse pulling, hot stamping is not on the phenomenon. Otherwise, the galvanized aluminum stamped on the second printing will fall off and accumulate on the blanket, seriously affecting product quality and production efficiency.
3 When designing, it should be noted whether hollowing or separate hot stamping can be used in large-area hot stamping to reduce the difficulty of hot stamping.
4 comprehensive consideration of printing, hot stamping, hot printing between the three appropriate control of shop environment temperature, humidity, try to avoid human factors caused by scrap. Hot stamping and anti-counterfeiting With the development of society, people are paying more and more attention to the security of high-end products. Anti-counterfeiting is almost applied to the entire packaging industry, such as ink security, printing pattern security, paper security, hot stamping security, UV oil security and so on. Hot stamping and anti-counterfeiting are relatively demanding. Control a more sophisticated anti-counterfeiting technology, here mainly introduces two anti-counterfeiting methods.
(1) The laser pattern of aluminum foil itself is used to transfer the hot stamping pattern to the substrate, so that the surface of the substrate can be stamped with various rainbow patterns to achieve anti-counterfeiting. This type of electrochemical aluminum technology is more advanced, more difficult to produce, and more expensive, so that imitation of those who deter.
2 Using holographic anti-counterfeiting patterns on anodized aluminum, the complete pattern is positioned on the substrate-fixed pattern by mechanical control. This process is the use of hot stamping version, holographic anti-counterfeiting aluminum pattern and substrate pattern trinity alignment registration, the higher the difficulty.
As hot stamping and anti-counterfeiting is a relatively new technology and requires a higher level of operator, it must be controlled reasonably to minimize unnecessary waste.
The hot stamping process of anodized aluminum is as follows: the hot stamping plate heats the anodized aluminum, the peeling layer melts, and then the adhesive layer also melts, the adhesive layer adheres to the substrate at the time of imprinting, and the colored layer is separated from the base layer of the polyester sheet. Layers and colored layers remain on the substrate.
The stamping of electro-aluminum on the packaging can not only play a role in beautifying the product and improving the grade of the product, but also play a certain anti-counterfeiting effect.
Post-printing Hot stamping One of the purposes of increasing the hot stamping process is to improve product quality, but in practical applications, only reasonable use can achieve a multiplier effect. Conversely, not only does it fail to show the advantages of the product, but it also causes waste. The following points should be taken into account when using the electro-aluminum hot stamping process.
1. Product Design Considerations 1 The hot stamping location should be fully considered, ie the matching of the color and the printing color of the hot stamping text or pattern and the effect of the hot stamping process on the hot stamping.
2 Hot stamping on a large area should also take into account the hot stamping site and the printing pattern of the paper, which need to be based on product overlay accuracy, generally set to 0.2-0.5mm. Of course, it is necessary to take into consideration the stamping adaptability of the aluminum foil itself.
3 Consider the overall effect of hot stamping and the cost of hot stamping. For example, some products often only hot stamp the outline and text of the pattern, and do not directly stamp the pattern to achieve the effect of point lining; for certain aluminum-plated paper cigarette packs, the printing design can be achieved by first printing the transparent yellow and pressing the bumps. Replace hot stamping to reduce costs.
2. The effect of printing and hot processing before hot stamping The general hot stamping product must be printed before hot stamping. There are monochrome printing and multi-color printing; stamping and embossing, UV glazing, laminating, and then printing and molding after hot stamping Cut, paste boxes and other processing.
Pre-hot printing should pay attention to the following points: dark thin printing, the use of strong coloring ink, in the ink as little as possible to add anti-adhesive agent and retreat agent, try not to spray, printing ink, coating oil and anodized aluminum The matching of printability of hot stamping should also prevent the influence of ink crystallization on hot stamping.
After pressing, it is pressed and embossed and die-cut. The effect of the gluing box on the hot stamping is not great. Just take care to prevent the hot stamping foil from being scratched. If you want to use uV varnish after hot stamping, you should consider the acceptability of the electro-aluminum, that is, the surface tension of the electro-aluminum is greater than the surface tension of the UV varnish. If allowed, the hot stamping part of some products can be hollowed out. If UV inks are first printed and then hot stamped according to the process requirements, the stamping properties of the UV varnish should be checked first. Generally, the dyne pen is used to test the UV light film layer, and the surface tension can be more than 3.810-2N/m. Electrochemical aluminum hot stamping.
3. Selection of Hot Stamping Materials and Equipment Hot stamping materials and hot stamping equipment are the two most critical factors affecting the hot stamping effect.
1 Stamping Material Stamping material is anodized aluminum. There are many kinds of galvanized aluminum on the market today, including ceramic anodized aluminum and paper anodized aluminum. Glass electro-aluminum, etc.; complex grades, both domestic aluminum, real estate in Shanghai, Zhejiang, Fujian, and the United States. Japan-made, German-made imported aluminum, and their respective advantages and disadvantages. Here we mainly discuss paper aluminum.
The hot stamping adaptability of anodized aluminum includes surface finish, brightness, sharpness, hot stamping adaptability to graphic and small texts, surface flying gold and flash edge problems, etc., depending on the level of printed materials, packaging products, and anodized aluminum. The choice of price and hot stamping trade-offs.
2 stamping equipment Hot stamping equipment is widely used in the domestic hand-type hot stamping machine, the main hot stamping requirements are not very high packaging products. It has low cost. Small footprint, easy operation, strong hot stamping advantages, but the hot stamping of high precision products, the error is larger, higher reject rate. If you have a hot box, most printing companies in China choose Bobst Hot Stamping Machine. The hot stamping accuracy is very high, and the control of hot stamping temperature, pressure and speed is better than other hot stamping machines. At present, some domestic hot stamping machines are also highly accurate and the price is much lower than that of imported high-end equipment.
Printing after hot printing Hot printing is a top technology that is used in cigarette pack printing. Its three-dimensional effect is beyond the reach of other processes. After the hot printing, the large area laser electro-aluminum is generally stamped on the spot color ink, and then the UV ink is printed on the electro-aluminum. Its printing materials. Printing inks, printing equipment, and printers are highly demanding. The following points should be noted in this process:
1 Select an electro-aluminum with a surface tension of (4.0-4.6) X10-2N/m to ensure that the ink has good adhesion.
2 In the hot stamping process, it should be noted that hot stamping is not allowed to have paste version, reverse pulling, hot stamping is not on the phenomenon. Otherwise, the galvanized aluminum stamped on the second printing will fall off and accumulate on the blanket, seriously affecting product quality and production efficiency.
3 When designing, it should be noted whether hollowing or separate hot stamping can be used in large-area hot stamping to reduce the difficulty of hot stamping.
4 comprehensive consideration of printing, hot stamping, hot printing between the three appropriate control of shop environment temperature, humidity, try to avoid human factors caused by scrap. Hot stamping and anti-counterfeiting With the development of society, people are paying more and more attention to the security of high-end products. Anti-counterfeiting is almost applied to the entire packaging industry, such as ink security, printing pattern security, paper security, hot stamping security, UV oil security and so on. Hot stamping and anti-counterfeiting are relatively demanding. Control a more sophisticated anti-counterfeiting technology, here mainly introduces two anti-counterfeiting methods.
(1) The laser pattern of aluminum foil itself is used to transfer the hot stamping pattern to the substrate, so that the surface of the substrate can be stamped with various rainbow patterns to achieve anti-counterfeiting. This type of electrochemical aluminum technology is more advanced, more difficult to produce, and more expensive, so that imitation of those who deter.
2 Using holographic anti-counterfeiting patterns on anodized aluminum, the complete pattern is positioned on the substrate-fixed pattern by mechanical control. This process is the use of hot stamping version, holographic anti-counterfeiting aluminum pattern and substrate pattern trinity alignment registration, the higher the difficulty.
As hot stamping and anti-counterfeiting is a relatively new technology and requires a higher level of operator, it must be controlled reasonably to minimize unnecessary waste.
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