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You’d be surprised - t shirts are usually printed on a big carousel
That bit I'm not surprised by - I've seen the carousel. The fixed points will obviously be as rigid as the platen and it's supporting structure, but fabric moves in mysterious ways so while the sides are fixed, the middle can drift about a bit.
gbj_tester-
True enough, but I suppose registration is about as much of an issue with separation halftone screens as it would be with any other approach. I’ve definitely seen plenty of halftone screen printed t shirts, but I’ve never done it myself. I’ve done CMYK halftone prints, but they’ve been on paper, with a perforated vacuum bed to keep everything nice and registered.
AlexD
You’d be surprised - t shirts are usually printed on a big carousel, where the shirt is fixed flat and then doesn’t have to move at all between screens.
I guess moire is more of a problem with multiple halftone screens, but you work all that out when you’re exposing them rather than at the printing stage.