hello mininumbers, welcome to the forum.. There's only 2 ways to do it to my knowledge..
#1- you can have an airbrush for each bottle of color..
#2-You can have a bottle of each color & after flushing your airbrush from one color, switch over to the next..
I've seen beautiful tshirt setups where the artist had up to 15-20 airbrushes--while that may be nice it's a hefty investment, when I would rather buy product..(shirts, hats, etc.) I use 3-4 airbrushes at a time--one for black, one for white & the others switch wherever I need them..I always have a pallet set nearby that after I flush cleanser through the airbrush into a can or receptical, I spray paint onto the pallet before progressing to the article I'm painting..it only takes a moment to do this & it's one of 2 perfect ways to regulate your speed & allow you a moments thought before you procede to do one shirt after another..My helper lightly throws the shirt on a shirt board along with the instructions, but I always insist on clothes pinning the shirt to the board myself..this allows me a moment or 2 to think of the instructions & I can proceed thinking I know what I'm doing..good question..
