>>4473441UV exposure is the biggest. Kept in an album is an easy way to stop UV but glass and certain plastics also work great. Avoid direct sunlight.
>>4473467>>4473468If the prints are going into a family photo album, that is by definition archival and a good case for pigment. I also see a lot of boomer types keep the same photo on a wall or dresser for decades. For stuff that you only care about for your lifetime, dye has the advantages of more consistent (no metamerism) and poppier color as well as a much smaller chance of clogging. I do have photos from inkjets and dye subs from 20+ years ago which have faded quite a bit and I have no access to the originals so I'm biased toward getting the most archival quality possible. It's ironically the digital stuff that is likely to be lost and forgotten. A busted capacitor in a hard drive or degraded flash and I can imagine someone just chucking it or maybe losing the password to or never accessing online photos whereas an old worn photo can still be kept and people usually keep albums even if they only look at them every decade.
>>4474102Yeah, the inks require quite a bit of time to set and dry. My pigment prints haven't gotten scratched yet even with toddlers handling them but I figure dyes soak in for more resilience.