Why does uv ink of universal printer dry poorly?

author: Uvink

2023-01-09

Anyone who knows about the universal printer knows that the difference between

the universal printer and the traditional printer is that it removes many complicated

traditional processes, and the full-color image is formed at one time, which means

that it can be hit and dried immediately. The products that can be printed perfectly

are all cured by uv lamp. UV lamp adopts uv curing technology, which not only makes

the printed products have strong stereoscopic sense, but also is corrosion resistant

and wear-resistant.

Why does uv ink of universal printer dry poorly?The drying of ink mainly depends

on the uv light. If the power of the uv lamp is insufficient, the uv ink will not dry well.

The power of the uv lamp is the radiant energy of the uv light, also known as the

penetration force. First of all, it must meet the requirements of uv ink absorption

spectral wavelength and power density. If the power of the uv lamp is not enough,

even if the lighting time is longer and the number of times passing through the uv curing

device is more, the product will not be fully cured. On the contrary, it will also make

the uv ink surface aging, sealing, embrittlement, etc. At the same time, the adhesion of

the ink is also poor, which will make the interlayer adhesion of the overprint poor.

Because the low power uv light cannot penetrate the bottom of the ink layer, the bottom is

not cured or not fully cured. The reasons are related to the daily operation of the staff,

mainly in these aspects.

After replacing the uv lamp, the use timer of the uv lamp was not reset to zero. As a result,

the use time of the uv lamp has exceeded its service life, but it is completely unknown. Do not

pay attention to the surface cleaning of the uv lamp. After a long time of use, the reflector of

the uv lamp is too dirty, resulting in the loss of reflective energy of the uv lamp. The power

configuration of the uv lamp is unreasonable, and the radiation energy generated when the

power configuration of the uv lamp is at the bottom is relatively reduced. At this time,

the uv ink cannot be dried normally. For these problems, we must ensure that the uv lamp works

within its effective service life, and replace the uv lamp that has exceeded its service life in time.