Welcome from Ontario, Canada. Batiks have a very tight weave due to the way they are made. Sharp needles and pins are needed. You can run your fingernail along the needle marks and it will help fill the holes back in. Misting it with water and pressing sometimes helps also. Usually when the quilt is washed the holes fill in but on a light coloured batik you may still be able to see them. Can you plan a quilting design to go over the needle marks when you quilt?