Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not good for black

To a layman, logic would tell you jet black would be the easiest color to achieve in dyeing fabrics; dont be fooled- its not. At least not with Rit products.I attempted today to dye 100% cotton cameo fabric black. First I used Rit powder via washer method- failure; barely tinted. Then I tried 2 of the liquid bottles via sink method and while it did tint it, it is a very far cry from "Jet Black" with the cameo very much so visible. On the second bottle I even used 1/2 the water plus the whole bottle just so it would be super concentrated. No dice. After 3 dyeing attempts the cotton is not black, not even close- perhaps at best a "warm purple grey". If you're looking for absolute black, dont bother with this product as its a waste of time, energy, and money.This is not the first time I've been disappointed with the dyeing abilities of Rit products, but it is certainly the last time I will try them.