[pure-silver] Re: NOW: Exposing paper was Re: POPwithpapernegs?

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.

Other related posts: