Rit Dye Liquid Dye, 8 fl oz, Scarlet Red, 3-Pack

Can this be use on Plastic Fabric as well?

can you use in COLD WATER; my washer has no hot!

I want to dye my off white %100 polyester winter jacket to black, will this work for it?

How do you use this I need a bright red color not a dark red how do you mix?