I got very excited the other night. I had added the buck thorn chips back to the water, heated them slowly ( this is all in the slow cooker so generally for 12 hours or so) added some raw silks such as silk laps I had at the bottom of my mordant pot and left it on for another twelve hours. I added a dessert spoon about of ammonia. The silks went a wonderful deep russet red but alas alas it all seemed to rinse out. The rinse water was a blood red at one point. The wool in the bath was better and here is a picture of it.
I have always wanted to dye with black oak bark so I am really excited to have done so and find the colours so beautiful. The significance of black oak bark is that it is light fast. As light fast as weld apparently so in this respect is very important. I just have to be able to get a good supply of it! This particular batch of black oak came from Earthues via Debbie the Mulberry Dyer so if anyone in the UK wants to try this she should be able to let you have some.