What is the difference between traditional ink and UV ink?

#1 UV Technology and Gravure Pad Printing

UV drying appeared in the automotive paint industry as early as the 1950s and occupied a larger market share in screen printing in the 1970s

In pad printing, UV drying inks allow users to obtain fine printed images, and the images have the characteristics of fast drying, high abrasion resistance, good pressure resistance, and strong solvent resistance .

#2 Discussion on the scheme to improve the cooling effect of the cooling section

Like solvent-based inks, pad printing inks have certain requirements for rheology

#3 Drying of UV drying ink

As mentioned earlier, solvent-based pad printing inks are dried by solvent evaporation

When UV energy passes through the ink layer, the photosensitive molecules in the ink interact with adjacent molecules, and these individual molecules are called monomers and oligomers

So how to get the most efficient UV energy is a mercury lamp at moderate pressure

UV pad printing inks can also be printed on heat-sensitive materials such as ABS, polystyrene and plastics

#4 Comparison of traditional inks and UV inks

If the printing job is relatively large, and the requirements for solvent resistance and abrasion resistance are high, the use of UV drying pad printing ink is undoubtedly the most ideal choice
.
In general, UV drying inks have greater abrasion resistance than conventional formulations or epoxy-based inks
.
The best example is the symbols on each key on a computer keyboard, they are all keystrokes printed with UV inks, and as a result traditional ink printed keyboard symbols wear out in about 1-2 million cycles, while UV ink printed keyboard symbols wear out in about 1-2 million strokes.
The keyboard symbols don't wear out until about 13 million times
.
The abrasion resistance of UV ink is 1300% of the abrasion resistance of traditional ink.
Not only that, the drying speed of the objective existence is also greatly improved compared with the traditional ink, which is reduced from 7 minutes to 15 seconds, saving 96% time
.

UV inks are also extremely solvent resistant after drying
.
This solvent resistance is partly due to the high crosslink density (large molecular weight) of the crosslinked dried ink layer
.
The higher degree of cross-linking allows intermolecules to work with some solvent-resistant chemicals under the action of solvents
.