The vintage Champion Label sweater is in perfect, clean condition; it doesn't seem to have been worn at all, and there are no pilling, stains, or holes. Im guessing 1960-s70s.
Based on my experience, the vintage Bloomsburg University Sweatshirt/Sweater ( it has the feel of a sweater and the cuffs and waistband of a sweatshirt) is made of Orlon. It doesn't say the material, but it is machine washable.