Can I use Rit dye, without rinsing, to color a huge amount of polyester/spandex fabric?

How to Dye Fabric: Rit DyeMore Synthetic Dye

i want to use rit dyemore on the spandex part of these to make the stripes a more orangey red, will that dye the cotton too? or will it wash out?

Rit DyeMore Synthetic Fiber Dye Product Guide: How to Use Rit DyeMore on Synthetic Fabrics

fit to be dyed - Lifestyle Blog by Leanne Barlow

Can I use Rit dye, without rinsing, to color a huge amount of polyester/spandex fabric?

Dyeing polyester with Rit dye :: Textiles Dyeing Process

Dyeing polyester with Rit dye :: Textiles Dyeing Process

Dye Polyester :: Textiles Dyeing Process

All About Hand Dyeing Q&A