Dmax will look cloudy. But it depends on the paper. Dave ----- Original Message ----- From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx> To: <pure-silver@xxxxxxxxxxxxx> Sent: Friday, December 17, 2004 8:41 PM Subject: [pure-silver] Re: NOW: Exposing paper was Re: POPwithpapernegs? > > ----- Original Message ----- > From: "Dave Valvo" <dvalvo@xxxxxxxxxxxxxxxx> > To: <pure-silver@xxxxxxxxxxxxx> > Sent: Friday, December 17, 2004 2:31 PM > Subject: [pure-silver] Re: NOW: Exposing paper was Re: > POPwithpapernegs? > > > > Richard, to make things a little more interesting > > regarding the science > > part: > > > > Optical brighteners have been known to migrate unless they > > are mordanted. > > Mordantly is very difficult and many paper manufacturers > > can't do it > > effectively. Brighteners can end up sticking their ugly > > heads above the > > Dmax in a print...thus lowering Dmax a little.......very > > little. > > > > Dave > > > I wonder if this shows when the paper is illuminated with > UV to make the brighteners fluoresce? I have one in the > other room so I might give it a try. > > --- > Richard Knoppow > Los Angeles, CA, USA > dickburk@xxxxxxxxxxxxx > > ============================================================================ ================================= > To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there. > ============================================================================================================= To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.