UV ink is completely the judgment method of curing by UV lig
时间:2016-04-18 14:48来源:sankun点击: 次
UV ink is completely the judgment method of curing by UV light
How to judge whether the UV printing ink by UV light curing, its method about four, sometimes through macroscopic observation on the surface of the ink and seemed to cure, but the fact is not, how to recognize, you need to use professional point method (UV ink only).
A, pencil hardness test: the test pencil hardness tester, if meet the requirements (general for 3-4 h) proves that the ink has been cured, if did not meet to consider to curing time, and the UV lamp power enough, and UV curing machine mesh belt transmission speed and so on various aspects of factors.
B, drops of solvent test: according to the solvent properties to propionic acid solution on the surface after 2 min, if have change the proof printing ink is not UV light curing. Analysis of ink cured completely, can change the internal structure of molecular toward double bond conversion, convert high curing was completely, then ink fastening the coating layer of the overall form.
C, the pressure test: weight about 500 g with flat-bottom, put a small amount of silk cotton fiber products to the surface of the weight on the cotton silk fibers will be a few minutes, then remove the weights, if cotton silk fiber will not stick on it, can prove the ink completely curing, the opposite is not cured.
Four, surface appearance: completely curing UV ink surface is very light, there will be no hair, no shadow, the overall effect is perfect or not.
The above method is for reference only, more related knowledge can consult our technical staff, method without national research center, is only part of the small make up some experience and general printing ink is not completely cured, in addition to the ink itself, should consider more UV lamp and UV curing machine factor whether they can meet the requirements of curing ink.
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UV ink(20)
