Since 3th party pigment ink is fade resistant,
I wouldn't like to spoil your evening, but Aardenburg tests tell you a much more complex story . You can access their test reports when you register as a member - for free - and get to the reports here
www.aardenburg-imaging.com/light-fade-test-results/
They calculate a Megalux hours final number for all the cumulated exposure over time - many months in total.
Let me just pick out a few of these results:
Test reports # 303/304/305 for the Chromalife Canon dye ink show results of 8.2 - 17 up to 55 Megalux hours, the papers make the difference
Test report # 302 for the Marrutt/Lyson Fotonic XG Epson compatible dye ink shows just 0.9 - 1.4 Megalux hours - just a few % of the Chromalife performance, Marrutt was advertising this ink as a super premium Epson compatible ink - at a premium price - so much for 3rd party dye inks - no - not yet -
Test report # 275 for a MIS Ass. D2 dye ink results in 1.5 - 2.1 Megalux hours - not much more, and you can assume that no name dye inks - China etc perform much worse, you can see some of them fading from one day to the next when exposed.
And how are pigment inks doing, look at
Test reports # 317/318 for the Lucia Pro 1000 inks ranging from 10 - 24 to 126 - 175 Megalux hours - the paper makes such a big difference for the same ink
Test report # 277/278 show the results for the claimed super premium Cone Color inks for the R3000 resulting in 11-15 Megalux hours - these 3rd party pigment inks don't even do as good as the Chromalife dye inks.
OEM pigment inks can do significantly better than OEM dye inks - depending on the paper - in a wide range but 3rd party pigment inks may not do better in lots of cases. There are only a very few entries with non-OEM pigment inks. Precisioncolors/Mike submitted a few samples several years ago - # 326-328 - but these don't show the performance of the current line of improved signature inks. It just shows that the inks at that time could not compare to the performance of OEM inks - dye or pigment.
You see that it is not that simple with the fading performance of 3rd party inks , there is effectively not more data available at all .