I don't know if you know it but there is formaldehyde in everything, that has fabric. Your carpet, furniture. I had a friend that bought a new house and had to resale it because of it.
I used to work for JoAnn Fabrics. The formaldehyde is terrible when you open up the boxes of fabric. I had to quit. I am a liscensed cosmetologist but had to quit that years ago because of it. The headaches was terrible.
I wash my fabric and dry completely then use spray starch when ironing. That way it puts some of the stiffness back into the fabric. It eliminates the wrinkles. It works well for me.