1.6um medium wave 616mm 240v 1500w halogen heat lamps used for the flash dryers
Compared with infrared halogen short-wave heating tube and infrared medium-wave heating tube, which one is more suitable for printing drying?
Infrared halogen short-wave heating tube and infrared medium-wave heating tube have their own characteristics in printing drying. The following is a comparative analysis of the two:
Heating speed
Infrared halogen short-wave heating tube: The heating speed is extremely fast, generally only 1-3 seconds to reach full load intensity, which can quickly evaporate the solvent in the printing slurry in a short time, so that the printed pattern can be dried quickly, greatly improving production efficiency, especially suitable for printing processes that require rapid drying for subsequent processing, such as automated high-speed printing production lines.
Infrared medium-wave heating tube: The reaction time from start-up to full heating is relatively long, about 30-60 seconds, but in the continuous heating process, it can stably provide heat, so that the printed pattern is evenly heated and gradually dried. It is more suitable for some printing products that do not require a particularly high drying speed, but have strict requirements on drying uniformity and quality.
Penetration ability
Infrared halogen short-wave heating tube: Short-wave infrared has strong penetration, which can penetrate the surface of the printing paste and reach the bottom directly, so that the printed pattern is dried from the inside to the outside at the same time, effectively avoiding the situation where the surface is dried too quickly while the inside is still not completely dry, thereby improving the firmness of the printing and the vividness of the color. For example, in the drying of some thick pastes or high-viscosity printing inks, the penetration ability of short-wave heating tubes is obviously superior.
Infrared medium-wave heating tubes: Medium-wave infrared mainly heats the surface of objects and thinner surface layers, and has relatively weak penetration ability for printing pastes. However, when dealing with the drying of some thin pastes or surface coatings, it can quickly and effectively dry the surface and form a protective film to prevent the printed pattern from being contaminated or damaged during subsequent handling or processing.
Temperature control accuracy
Infrared halogen short-wave heating tubes: They are sensitive to the control device and can adjust the power of 0-100% as needed. They can accurately control the heating temperature. With the temperature sensor and controller, the temperature of printing drying can be controlled within a very small error range, which is conducive to ensuring the quality stability of printing products and meeting the strict requirements of different printing materials and processes for drying temperature.
Infrared medium-wave heating tubes: The temperature control accuracy is relatively low, but through reasonable design and control circuits, it can also achieve better temperature control effects, meet the basic temperature control requirements of most printing drying processes, and are particularly suitable for some printing materials and processes that are not very sensitive to temperature fluctuations.
Energy distribution and utilization efficiency
