Give your clothes a longer life and get a new look with iron-on patches. Choose from tons of different designs to find your own unique look. Method: Work on a hard surface and place the patch on the clean and dry fabric, adhesive-side down. Lay a pressing cloth on top and press with an iron set to cotton without steam. Iron for 10-20 seconds to fix the patch. You can also sew the patch on with small stitches. Wash the decorated garment inside-out at 40°C.