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2002-09-24 by heliar
Given that one might already use the best of the available "archival" ink/paper combinations, is there a particular kind of preservative coating or spray, in conjunction with UV glass, which will gurantee the best possible archival permanence ? Thanks !
2002-09-24 by Robert Morrison
To the best of my knowledge there has been no published testing on this for the inks that digital BW users actually use. About a year ago I did a south window test of a number of acrylic polymers. I found about a 50-100% improvement in density loss after 6 weeks in a bright southern california window using the original PiezoBW inks on a variety of different papers. With respect to lightfastness, it didn't seem to matter which acrylic polymers were used, however, it is a difficult task to actually formulate these polymers to have all the properties that photographers want. Its important to note that film thickness was considerably more with these polymers than you would get from one of the aerosol spray products on the market...I think this is absolutely critical. The reports that I have heard from users have suggested that the sprays don't do anything positive for lightfastness of pigment based inks (they can help with mar resistance, though). Robert
On 9/24/02 12:32 PM, "heliar" <heliar@...> wrote: > Given that one might already use the best of the available "archival" > ink/paper combinations, > is there a particular kind of preservative coating or spray, in conjunction > with UV glass, which will gurantee the best possible archival permanence ? > > Thanks ! > > > > Please visit the Group Homepage to check the Files, Bookmarks, Polls and other > resources as they are often being updated. The page is at: > > http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint > > If you wish to receive no emails or just a daily digest, or you wish to > unsubscribe, please edit your Membership preferences by visiting this same > page. > > Please follow these basic guidelines: > - Include your full name with your message. > - Include the address of your website, if you have one. > - As threads develop, trim off excess portions of earlier messages to keep > them short. > - As the topic of a thread changes remember to change the subject header. > - Good manners are required at all time. No personal attacks or > &amp;quot;flames.&amp;quot; > - Complete your Yahoo profile. > - Before posting a question, search the message archives and the various > resources on the homepage. > > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > >