UV ink on windmill 10x15

Unless you’re getting free ink, or have very particular customer demands that only a UV ink can provide, I don’t think there’s an advantage to the system.

I suspect that you could run UV inks, without major changes to the press (rollers, etc), but you will be laying down a thicker film layer, which will change the drying properties of the ink.

A hot air/infrared dryer (lamp over the delivery) and adding drier to your ink would probably give just as good a result.

Yes, you can run UV inks but you will have to change the rollers because of contamination. If the inks get contaminated it is really hard to cure, if at all.

The biggest advantage of using UV inks is that it cures instantly. I am assuming that you might have a connection with a Package Printer in the area. So, right after it is printed it can go directly to the die shop and get cut/folded/crated for shipment.

If you are trying to go Green, I would pass on this idea because that conveyor system will eat more electricity and produce ozone which needs to be pumped outside and is highly toxic. So Letterpress Printing with traditional inks is way more green right now than UV.

However… If you really want to be cutting edge and you have the market for it I would suggest LED UV. This company is in The USA and everything is engineered/manufactured/assembled in the USA. They outperform everyone in the world when it comes to LED: https://www.youtube.com/watch?v=aVPfYFAIREA

No ozone and way less electricity.

Hope this helps,
Jared

the rollers for uv are different but it is possible

maybe its easier just to screenprint with uv

I have a very specific use. We want to silk screen this ideally but I have no space, just letterpress.

Here is the deal, I have alot of request for small qty spot gloss UV finish. What happens is we digital printed the paper, laminated it, then print clear gloss UV ink on top, print, not flood. Now with the same digital printer, we can output negatives whichs make it much easier to register and align then comparing to apply it on screen printing.

And the qty that I always deal with make sense with letterpress, from 100- 500. And I cannot see why this is not much faster then screening.

So questions, do I need different kind of roller rubber or just separate 2 different rollers? And what kind of material is that?

Yes you will need different type of roller rubber but you can also digital print and then just apply plain or sectorized uv varnish mate or glossy with screen print

In this case you will not need to laminate

You could also use type high wood base with offset blanket glued to it and uv varnish plain in this case and then drive it thru the uv owen

to make it look more high gloss, we need to make the base super matte, so lamination will give you the best matte effect.

And therefore we must use UV ink, another ink won’t even dry at all. And yes screen print works, but I think I should talk to rubber roller supplier have them custom made a roller for me.

I prefer using letterpress than screen print for this, less messy. And I don’t have screen printer right now. = (

Why don’t you print it with a clear gloss over-coat varnish? Talk to an ink maker, and tell them what you are trying to accomplish. You shouldn’t have to use UV inks to finish a project like you describe.

Paul

Clear gloss ink over matte varnish is far far from what I am trying to achieve here. = ) but I think I found the right direction here, I will give it a try and update you guys here.

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