At 5:15 PM +0000 12/31/05, Clayton Jones wrote: > >Hello Sam, > >>I'd appreciate any advice about how to make any of this more robust. > >If you haven't already, get a sample of Museo Max. It's so tough you >can't scrape it off with a fingernail, so it will certainly resist the >abrasion of being in a stack of cards, being handled, etc. All other >papers I've tried can be scraped off, with verying degrees of pressure. I haven't gotten any Museo Max yet, Clayton, but I'm going to because it sounds very promising for up-scale card stock which has to run the post-office and handout gauntlets. >As for water, I just did some tests with some old work prints > >K3 on VFA >K3 on Max >K3 on Innova Fiba >K3 on Innova Sm Cotton >K3 on Innova Soft Texture >K3 on Moab Kayenta >UT7 on Condor BW >Eboni BO on Condor BW >Eboni BO on Merlin Sm >Eboni BO on PR >Eboni BO on Aurora >Eboni BO on EEM > >I held them under running water until thoroughly soaked. None of them >bled or ran from the force of the running water. I then did two tests: > >Smear Test - rubbed lightly with my thumb. Two papers failed the >smear test: EEM and Merlin Sm. They smeared almost instantly (by >"smear" I mean the ink [or the coating containing it] liquified and >"ran"). VFA didn't smear, but the ink came off in patches with very >little rubbing pressure - it was very delicate. All the rest except >Max were similar in that they didn't smear but eventually came off >with increased pressure. Max was the most resistant. Only under the >most extreme pressure it looked a bit abrased. But it never came off. >Condor BW and PR were nearly as tough as Max. > >Scrape Test - scraped them with a thumbnail. They all could be >scraped off pretty easily, but the Max was the most resistant. VFA >was the least resistant. > >To summarize, when wet Max seems to be the toughest, followed by >Condor BW and PR, with VFA being the most delicate (however, VFA is >very abrasion resistant when dry, as is Kayenta which is just average >when wet). > >Regards, >Clayton >[snip] Thanks also, Clayton, for all this detail on your when-wet tests. It's going to help me quit living dangerously with my simplistic assumptions about the efficacy of pigment inks. And thanks to Greg for the wake-up call. Happy New Year to both of you and to everyone else reading this thread. -- Sam
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Re: [Digital BW] water resistance
2006-01-01 by Sam McCandless
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