Lay your jacket with pinned-on patch on a durable, challenging area, preheat the iron to a high location, and do not use steam. Spot a Teflon ironing sheet or one thing equivalent above the patch to defend it and the iron. You may have much better outcomes if you work with 1 patch at a time. When you are prepared to iron a patch on, push the iron firmly down on the patch, and implement constant, r