ã€China Aluminum Industry Network】 After hot stamping is a high-quality technology, it is widely used in cigarette pack printing, and its three-dimensional effect is beyond the reach of other technologies. 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 comprehensive consideration of printing, hot stamping, hot printing between the three appropriate control of the shop's ambient temperature, humidity.
4 When designing, it should be noted whether it is possible to hollow out or separate hot stamping in a large area of ​​hot stamping to reduce the difficulty of hot stamping.
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