There was a beautiful true black by either Kaufmann or Hoffman (there is nothing on either selvedge) about 5 years back that was the best I've ever seen. It was loomed in Japan and had a lovely sheen and soft hand to it. I bought 9 yards at the time and it has never been made since. The LQS I bought it at tried to get more as it sailed out of the shop with no luck. That has been my benchmark for true black ever since and even the best Kona or Miller black doesn't come close to this one. If anyone hears of something like this I'd love to know myself.
Diana