Questions on optical brighteners, uv and fluorescence
Questions on optical brighteners, uv and fluorescence
- Subject: Questions on optical brighteners, uv and fluorescence
- From: neil snape <email@hidden>
- Date: Mon, 30 Sep 2002 08:03:15 +0200
on 30/09/2002 07:37, Graeme Gill at email@hidden wrote:
>
> Do the inks
>
> themselves filter the reflected light in a way that influences the paper
>
> base (unprinted)?
>
>
I'm not sure what you mean by this question. Can you re-phrase it ?
Thanks for the excellent reply (as we've been privileged by).
I'll try to re-phrase although it's rather exploration into areas I know
nothing about even if it exists.
At some point ink can be covering the surface of the paper in a way that can
be cumulative or subtractive of the uv and fluorescence issues. Could the
inks then filter the qualities of the uv characteristics of the paper as
the inks could modify these issues. Could applying absolute colorimetry be
used in a significant way to modify the behaviour of the base paper to mask
uv brighteners?
For example uv doesn't pass through glass well at all. Does uv pass through
the inksets we use or which colors?
Neil Snape email@hidden
http://mapage.noos.fr/nsnape
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