Yes it matters,if your using plastisol ink you can get a sublimation effect were the dye from the shirt will start coming thru into your ink,you can also crack your ink.
Waterbased inks need to be cured longer because of the water in the ink,it takes more time for the water to be burnt of before curing can begin as aposed to plastisol where plastisol is solvent based ink.
I would contact your supplyer for drying times;
-about 170c for 2-3 mins is what i do with plastisol.
-about 180-190c 2-3 mins for waterbased.
But this with a conveyor. so i would watch for scortching in your case.
