RE: What is Paper Brightness (was RE: defining media white)
RE: What is Paper Brightness (was RE: defining media white)
- Subject: RE: What is Paper Brightness (was RE: defining media white)
- From: "michael shaffer" <email@hidden>
- Date: Tue, 2 Oct 2001 16:55:07 -0230
Scott writes ...
>
I've never really seen how far away the reflectance meter is positioned.
>
However, I do know that most fine-paper manufacturers (like
>
Hammermill), use
>
a bluing agent in the brightener/bleacher whose purpose is to augment the
>
reflected light, so numbers near 100 are possible.
Curious! ... and more curious is ... if the measurement is an angular
reflectance, how do we compare a gloss surface with matte? Surely, they
have different angular reflectances(?)
shAf :o)