Iron On Embroidered Applique Patch: MAKING CHOCOLATE Approximate Patch. Size: 2 x 1 3/4 . These are easy to apply to a garment, tote bag, place mats, sheets, etc. Heat seal to cotton and cotton/polyester fabrics. DO NOT APPLY TO RAYON, NYLON OR TRI-ACETATE FABRICS. INSTRUCTIONS: Preheat iron to cotton setting. Do not use steam during applications. (2) Position design and cover with thin pressing cloth. (3) Press straight down with constant pressure for 25 seconds. DO NOT IRON BACK AND FORTH. (4) Allow to cool thoroughly before using.