I have a run of the mill white ITF dobok that’s a poly/cotton blend. I also sew. How do I fancy it up? I’ve seen people add patches on shoulders and add appliqué on the back logo and stuff. I usually wash my dobok in cold water with other lights and whites to avoid dyes bleeding into it and losing its colour, but if I use black fabric for the appliqué, I’m scared it will bleed. Do I just pre wash the fabric and make sure it’s a similar fabric content to my dobok? Do I add a colour catcher like Shout as a precaution? Do I use 100% polyester black fabric to avoid it bleeding even more? Dye for polyester needs to be basically cooked into the fibers so it doesn’t bleed as much. Do I just let it air dry?
If this would be better in a different subreddit let me know. Sewing folks have experience with lots of fabrics and dyes, just not necessarily martial arts garments. I thought it would be best to ask here. Thanks!