Formally known as Sepia K7. I believe that designation ÒsepiaÓ was a psychologically limiting description in that these ultra-subtle warm carbon dilutions are in no way related to the bright red-yellow color that one may by habit associate with sepia toning and the like from darkroom days, thus the updating of the name recently to simply K7 Carbon. The recent very strict Aardenberg accelerated tests of the Piezography Carbon (Sepia) K7 shows it to be leading all the other monochrome pigment ink sets on the market today. Not only are they not showing any signs of premature fade, but they are not showing any drift in the print color either. They are the closest thing there is to a platinum-palladum print in the digital world of the pigment inkjet process. No other inkset has so many subtle light values to work with. Due to the incredibly small pigment particles, Piezography Carbon inks are also susceptible to paper whites which can be used to subtly move the inks warmer or cooler depending upon the tone of the white. Like all Piezography and ConeColor inks, this is an encapsulated pigment formulation designed to insulate the static charge of the pigment particle which prevents clogging. Only Epson and HP employ similar technology. This is the perfect black & white ink set.
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