Deep understanding of heat transfer film

1. Temperature is fixed: too low temperature will appear hot stamping or hot stamping is not firm, but also make the imprint flower; If the temperature is too high, it will oxidize the surface of the color layer, make the product lose luster, darken the color, and even blister. To determine the best hot stamping temperature should consider the following factors: pressure, speed, area, room temperature, etc. The general range of hot stamping temperature is 140 ℃ - 180 ℃. Once the optimum temperature is confirmed, it should be kept constant and the temperature difference should be within ± 2 ℃.
2. Pressure determination: hot stamping pressure is generally 4-6 kg / cm2. If the pressure is too small, the hot stamping film can not adhere to the substrate, which reduces the fastness; If the pressure is too high, it will produce substrate tightening deformation increase, forming pattern deformation, printing thin. If the hot stamping complex uneven products, but also pay attention to the average difference of each pressure point, on the bronzing wheel and substrate pressure angle request higher, otherwise, it is very easy to present local firm, local not firm phenomenon.
3. Speed determination: should be based on the hot stamping area to determine, at the same time to consider the power of heating temperature. Common is the first speed, then pressure, and finally temperature.
Heat transfer film products should be handled with care, straight, vertical, not horizontal; It should not be placed near the heat source. It should be kept away from the heat source and stored at 25 ℃; Strictly guard against moisture, once damp, in the use of high temperature plus source will produce gas, and make the hot stamping film produce chemical reaction. Therefore, hot stamping film storage and to be used should pay attention to moisture, moisture, anti pressure, to be placed in a cool and dry place.