RE: Proofing Papers for Color Laser Printers
RE: Proofing Papers for Color Laser Printers
- Subject: RE: Proofing Papers for Color Laser Printers
- From: Roger <email@hidden>
- Date: Tue, 14 Apr 2009 21:56:01 -0400
Unfortunately, as far as I know, there are no direct translation or
conversion between ISO Whiteness and CIE Lab.
It might help to know that NONE of the laser paper I tested ever come close
to real presses printing paper -- NONE. They always incorporate a surdose of
optical brighteners which makes glow badly under a UV lamp and makes them
score above 100 on the CIE Whiteness scale, but are nowhere near a paper
like Lustro Gloss 95, 0, -2. The best method, in my view, is to compare them
visually. Also, keep in mind that, it's not because you find a laser paper
that is visually close (Mohawk Navajo Digital is the least worst IMO) to ISO
Coated, that it will necessarily reproduce colors LIKE an ISO Coated paper.
Best / Roger
> > Would finding a laser paper (such as HP¹s Presentation Laser Paper)
> with a
> > Brightness rating of 95% be the same (or similar) to a ISO Coated #1
> paper?
>
> After some researching I believe that looking at a paper's CIE
> "Whiteness"
> might be a better way to find a paper that is a closer match to the
> ISOcoated v2 paper Lab value of 95,0,-2.
>
> >From International Paper site:
> > " company is also transitioning the way it describes its products
> from the old
> > GE brightness standard to the CIE whiteness scale.
> >
> > "At International Paper we are initiating this improvement for our
> customers
> > because we believe whiteness is the best descriptor of the appearance
> of
> > paper,"
>
> So now I've found some laser papers that list their CIE WHITENESS - but
> how
> does one translate that value to CIE Lab?
>
> If I know a paper's CIE Whiteness rating (for example HP's Brochure
> Laser
> Paper HEW-Q6610A - CIE Whiteness = 100) - how can I know if that is
> close to
> the ISOcoated v2 paper target?
>
> Regards
>
> Joseph Yates | Pacifica Island Art | Maui, Hawaii
>
>
>
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