When using an iron on silk material, you need to make sure you select the correct temperature setting for the job before you begin. Many irons, including travel irons, will now offer a specific setting for such delicate material, and you merely need to select that option before switching them on. However, many travel irons will provide an easy-to-use heat adjustment dial range which means if you intend to iron on silk, you’ll need to select the lowest temperature setting possible for this. Alternatively, check with your appliances instruction manual first.