What Fabrics Have Formaldehyde In Them?

What Fabrics Have Formaldehyde In Them? 100% treated fabrics including cotton, linen, wool (treated fabrics are usually marketed as permanent press, wash & wear, wrinkle-resistant, anti-cling, or shrink-proof) Cotton and polyester blends, and any other synthetic fabrics blended with natural fibers. 100% rayon. Corduroy. Does clothing contain formaldehyde? Most clothing items tested by GAO were