Water resistance of some red and crimson inks

The ‘after’ shot of this:

https://www.fountainpennetwork.com/forum/gallery/image/9355-some-red-and-crimson-inks/

following a ten-minute soak in a bucket that was only being filled under a splashy, rapid-flowing faucet once the sheets were clipped onto its wall, thus providing lots of agitation (which minimised staining from the run-off colour).