Digital BW, The Print

In a message dated 2/4/08 6:12:38 PM, tyler@... writes:


> These new papers are all seriously blue
> 

Yes, I've noted that the ones I've printed on lean towards "brightened" as 
well. One more reason I still prefer matte art papers. Certainly it takes a 
different paper base to produce these papers, and the fine art cotton fiber base 
has to be calendared heavily, so that fibers won't be raised under the gel-like 
coating. This means the papers are thinner and stiffer. But it does not 
account for them being bluer. 

Surface coated matte art papers take their whiteness from the coating, not 
the substrate. The gloss papers, while invisible whitening agents can also be 
added to the coating, typically get their whiteness/blueness function from the 
base. It seems some manfacturers feel their coatings are a bit yellow, and try 
to compensate for that by having the bases be a bit blue... a less ideal 
solution than getting both to be neutral, so that neither has to be artificially 
whitened/brightened.

C. David Tobie
WW Product Technology Manager
Digital Imaging & Home Theater
Datacolor
CDTobie@...
www.datacolor.com/Spyder3


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