Before you begin to iron anything onto your garment, please check what the material it is made of. Patches can be ironed onto cotton, cotton blends, velour, denim and wool.
DO NOT apply iron on patches to waterproof rainwear, rayon, nylon, velvet, acrylic, minky, leather, vinyl, or any other fabrics with finishes, elastics, or heat sensitivity. If you're unsure, test with an iron on a hidden seam or hem to see if the fabric accepts the heat without damage.
1) Preheat your iron and position your patch where you want it on the material.
2) Place a thin cloth over the patch.
3) Place your iron onto the cloth on top of the patch and apply firm pressure for about 20-25 seconds.
4) Next, turn your garment inside-out and iron the area behind the patch while applying firm pressure for 20-25 seconds.
Allow the area to cool for 48 hours and the iron on process is complete.
Washing is allowed at a temperature not exceeding 40°C.
Though my patches are made with the best iron-on adhesive from the German company Gunold, they still may come off after repeated washings and/or rough treatment.
Therefore, I recommend to sew a patch.