Quote:
Originally Posted by hawaiian bam bam
its funny with all the knowledge on this board, no one knows why blue sharpie turns grayish purple. come on guys!!!!!!!
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It's because there is no such thing as "permanent" or "archival" marker. Well, technically it's because of science. They are all alcohol and aniline dyes. Dyes will fade. You can put your signed item in a box away from the light, put that box in box, and put that box in a box. It will still fade... one day. Blue turns to purple, black to brown, it's just how color works. There is a reason artists don't use sharpies or staedtlers, because one of the purposes of the majority of art is to last. The only exception to that rule is true India ink. Also there is this:
https://www.google.com