Question about dyeing

I had reason the other day to look up the website of the fabulous Kremer Pigments and found this:

https://shop.kremerpigments.com/us/shop/pigments/36010-tyrian-purple-genuine.html

UNfortunately, while the website tells you that it is suitable for both dyeing and painting (acrylics, tempera, watercolour/gouache, oils), it doesn't describe the dyeing process, and the internet was not immediately informative. If anyone knows, do let me know! If it's not too much of a faff (recipes involving urine are not going to be considered) I wouldn't mind trying to dye some silk yarn, and then getting Housekeeper to crochet me a little lace collar...