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Re: [Digital BW] Micro Ceramic Lustre Vs (presumably) Harman

2007-02-27 by John

Baryta, or to give it a proper name, is Barium sulphate.
Baryta.
1. Barium sulphate/sulfate. This material is applied to certain types of black and white photographic paper prior to the application of the emulsion during the manufacturing process. The baryta layer helps create a smooth glossy surface and increases paper whiteness.

This paper surface is then prepaired with a superior Nano-particle, "Patented" microporous finishing coat.

2. Clay/PCC, or Precipitated Calcium Carbonate is used in papers to gain a certification as "archival" and to provide bulk smothness for Laser printing.
 
Some "Baryta's are mined some are created by precipitation and some have an L.a.b. "L" of 99.6%.

Interesting Times.

John_E

----- Original Message ----
From: djon43 <djon43@...>
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Sent: Tuesday, 27 February, 2007 3:30:42 PM
Subject: [Digital BW] Micro Ceramic Lustre Vs (presumably) Harman



Baryta (clay)-related comments by Inkjet Art...

At the bottom of the webpage they compare clay-coated papers to their
infinitely less expensive house brand (eg 11X17 @ $0.82 USD per sheet):

http://www.inkjetar t.com/photo_ papers/ceramic_ luster.html 

They don't mention Harman directly, but what other inkjet brand does
clay coating ?

I've found Inkjet Art's technical information and subjective
observations about paper reliable, to the degree that I could evaluate.

Anybody here been able to compare Micro Ceramic to Harman? 




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