batik's tear evenly-and easily-just like most any good quality cotton-
or you could use your long ruler- draw a straight line & cut with scissors-following the line
or- drape some of the fabric behind your cutting table- carefully lining up with your ruler- and cut the length of your ruler at a time- moving up-re-align- cut-move up-re-align...to the end.- or lay out on a long table-or the floor- with cutting mat under fabric= move the mat up as you cut-