Looking at the Wilhelm test of Claria in the 260 and Vivera dye in the 8450, the Vivera, under glass, typically is rated 108 years HP's better glossy papers v. Claria 98 years. The Vivera color benefits from UV protection, whereas the Claria does not due to differential fade issues (one color benefited too much relative to another color). This suggests to me that light differences could result is significant test differences. HP, as with their pigments, appears to have done a very good job of matching fade rates of the various colors to avoid color shifts. The HP did poorly with no glass (there are no equivalent Claria numbers). This is consistent with Mark's feelings that the main benefit from the sprays may be the coating, regardless of whether it absorbs UV. Paul www.PaulRoark.com
Message
Re: Is Claria the best dye ink? was batch h1 Aardenburg test results are in
2011-06-02 by Paul