Most laser printer toner transfer based PCB makers on the internet take a step of peeling the ironed paper using water. I did that too but then someone told me to avoid water for that step. Just let the paper to cool down for about 8 hours and then peel the paper without water. I got perfect and far better result by peeling out the paper without water at all.
Save water for the future and thanks to the unknown guy I met in the electronics store for sharing the waterless technique. GBU