[ Sorry; hit send before I was really ready. -r ] Here's Wikipedia's take on swell paper, buried in a page on tactile graphics: > Swell paper has a special coating of heat-reactive chemicals. Microcapsules of alcohol implanted in the paper fracture when exposed to heat and make the surface of the paper inflate. Placing black ink on the paper prior to a heat process provides control over the raised surface areas. ... -- https://en.wikipedia.org/wiki/Tactile_graphic > ... how do you transfer images from the normal paper to the swell paper I used a multifunction device (fax, printer, scanner) as a copying machine. The reason I did this is that the ink in my normal printer smeared on the rather slick surface of the swell paper. I guess the ink in the copier comes out a bit dryer... FYI, any device used to process swell paper needs to have a reasonably straight paper path, to reduce the risk of jamming, damaging the paper, etc. Also, the ink needs to heat up significantly when exposed to the bright light in the expansion unit. Carbon-based inks seem to work well for this. - Rich Morin _______________________________________________ Blinux-list mailing list Blinux-list@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/blinux-list