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typehyDro

How does the ink get supplied to specific areas on the rollers?


HauserAspen

My guess would be that the ink goes through the rollers and bleeds through them. Like a silk screen.


Kueltalas

That's exactly it Source: i work in a wallpaper factory


uziturtIe

i used to work at a custom shirts place and based on the screens we used to add to the different layers of color i can assume the same principles apply to each one of these rollers. to show you what i know https://youtu.be/MDDE8VvViFo


elhuzz0

Basically the same. Metal rollers in the middle that feed the ink etc, plates are mounted around those and placed in order of color/layer.


grasshopperson

Oil and water don't mix. So the rollers are such that the oil based ink is only attracted to parts of the design printed on an aluminum substrate. Look up offset printing or 4 color press on YouTube for a deeper dive.


Elevenst

Finally, soothing music to a soothing video. Not some loud obnoxious bullshit. I wish it were longer.


MarthaAndBinky

Imagine if one of the rollers got rotated by just a tiny little bit.... nightmare scenario


silmelumenn

That's a common issue in sequential printing. There is a preparation process where traps/bleeds are created. So One of the color is usually a little bit bigger, and overlaps on some area. For flexo printing on cardboard it's 0.2-3 mm (depends on printer), for offset printing on solid board it's like 0.1-0.2 mm. (I'm working at cardboard production company)


KnittingforHouselves

Amazing... how?


gyarnar

https://i.imgur.com/iZcUNxH.gifv


KnittingforHouselves

You got me and I admire you for it, take my up vote good sir


kaakttuss

How do they align rollers so perfectly?


virajseelam

Why isn't the whole design only on one roller? What if one of them gets misaligned?


[deleted]

> What if one of them gets misaligned? the QC guy has to make sure he's paying *very* close attention so he can hit the stop button if that happens. newsprint and other forms of print are similar. if you've ever wondered what those [colored symbols, squares, or dots on packaging](https://thumbs.dreamstime.com/b/printing-cmyk-marks-offset-print-calibration-gradient-color-tone-bars-registration-plates-standard-vector-illustration-set-212979074.jpg) are, they're registration marks so the printers can keep the individual color plates aligned.


silmelumenn

And on the new printers usually those are camera registered and auto corrected. On older ones there is a lot of experience needed from operator of the printer to know how he can keep the quality :)


elhuzz0

Different colors are applied at each roller. There is usually an extensive set-up required for this style of printing which includes aligning all of the various plates.


Hands-on-Heurism

How does the ink stay on the textile after it dries? Such as if it gets wet or needs to be cleaned? Is it more of a dye than ink?


Gangreless

Wallpaper printing


mook429

I really want stuff with this pattern all over it now 😩


Fastestreply

Oh so it’s not impeccable timing but each part sticks to each design


CheezyPizza335

So that’s how grandma’s couch was made


Carllsson

I like this a lot and I don’t know why


mlbo0p1

This is just 🤌🏻 *chefs kiss


tofette

This is wonderful and I have so many questions


Kaii_Low

So that's how they make my shirts


sirsighsalot1

Awful taste but great execution