Many friends who work in UV printing and coating business asked me that, "Henrik, i dont understand one thing, that our lamp power is 160w/cm,180w/cm, 200w/cm, or 240w/cm..... but my printing ink still cannot cure good?" So i asked them back," do you know how much outlet UV energy you have?" I am so surprise that most of them cannot answer me.
My suggestion is, please buy a UV energy measurement before you buy UV curing system,because lamp power input is not equal to UV energy output.
There are three factors you have to consider when you start to choice a good UV curing system.
Fact 1: Do you need a cold UV curing system or not?
Most friends know that more than 60% energy of UV lamp output is IR+visable light , which can not be used as curing but will head up your printing surface lot. Most cold UV curing system suppliers as DPL will choice "blue reflect coating" inside of lamp house( also called as lamp head). The function of this coating layer is absorb IR energy and reflect UV energy.
Fact 2: Do you need water chilling or air chilling?
I have to say that this is really up to your printing material and printing width, also how much temp your printing material can bear? DPL UV curing system use water chilling to cool down lamp house, small air chilling inlet and outlet for thermal material printing, so you can choice both.
Fact 3: Do you mind to change your lamp often?
Many friend like to use high power lamp to get better better cure result, but working life is also short.
In any case, welcome to contact with our UV Specialist or visit our website www.dpl.dk or watch our movie at : [
www.youtube.com]
