Super wider UV curing lamp means lamp provides curing width over 1700mm.
For graphics printing and coating business, more and more clients are looking for the more efficient printing process to reduce production cost. Therefore, our clients also need wider web printing or coating machine equipped with Super wider UV curing lamps. But super wider UV lamp is not only just wider. Compared with standard width UV lamp, super wider lamp need to consider more than the width.
DPL Pattern Lamphouse construction
DPL Super wide Cold UV curing lamp at 2000mm with specially coated reflector and our pattern design on lamp construction. For example, from the top to two side frame of lamphouse, there is UV radiation refect coating. When UV lamp is on, these coating layers will reflect light to the bottom quartz window. Quartz window has very high UV transmission, means more than 95% UV light will pass throw. In order to reduce production cost, there are many manufacturers use the cheap reflector or even don’t use specially coated UV reflector. But as you know, more than 60% light energy of UV lamp is IR. The problem of IR is to dry the solvent or water-based content inside of UV Ink or lacquer. The Result is the outside of ink is dry, but inside ink cannot be dried. Because the dried top side is too hard to go throw.
High-efficiency chilling channel
Inside of lamphouse, DPL high-efficiency chilling channel can cool down lamphouse frame by automatic controlled chilling water. The chilling control sensor can automatically increase or decrease water flow.
DPL Super wider curing Lamps are designed for super wide printing and coating machine. Lamp carry on DPL’s focus on cold curing temperature and uniformity, which is suitable for super wide touch screen or printed electrics process.
According to the different application, there are several types of UV Lamp. For example, we can see many UV lamps when we visit emergency or operating room in hospitals. They are UVC lamp, which uses for disinfecting. UVC means the light wavelength from 100-280nm. For graphics printing and coating industry, we use kinds of Gas-discharge UV lamps or UV LED lamp. Gas-discharge lamps are a family of artificial light sources that generate light by sending an electric discharge through an ionized gas. For UV LED lamp, we will introduce later.
What is DPL cold UV curing system?
As you know, UV lamp output includes 60% IR energy, a normal metal reflector reflects IR energy out of the lamp head/house, and heat up the touch temperature between your base material and lamp head. Every DPL lamp head/house use specially coated reflectors from the top frame to the two sides frame. These reflectors can absorb 90% IR from your lamp and transfer to the chilling system. Therefore, the surface temperature of your printing material is the only 5-10C degree higher than your environment temp.
What is the advantage of Cold UV curing system?
Besides of which we mentioned before, reduce UV curing temperature can help improving printing quality. Cold UV curing temperature can also help improving UV lamp bulb ‘s working lifetime. By our pattern design lamphouse, the general lifetime of our UV lamp bulb is over 2000 to 3000hours. On the other way, the lower curing temperature is good for curing UV lacquer on the thermal sensitive material. For example, even for printing base film as PET film, lower curing temperature will help improving printing accuracy.