"They were discarded at recycle area of building."
I think that's a substantial hint.
Use of fabric softener in our house is limited to socks and not much else, unscented Downey with about half a teaspoon (no joke) regular Downey or Suavitel added. Depending on your detergent that may be all you need to pleasantly scent even a large load.
The only scented laundry products we use are Charlie's powder (I don't know if it has any added fragrance, it's mostly washing soda and that's what it smells like), Woolite and the fabric softeners. BTW we found the "for darks" Woolite has a great residual scent, it's what we use for lightly soiled clothes.
I think that's a substantial hint.

Use of fabric softener in our house is limited to socks and not much else, unscented Downey with about half a teaspoon (no joke) regular Downey or Suavitel added. Depending on your detergent that may be all you need to pleasantly scent even a large load.
The only scented laundry products we use are Charlie's powder (I don't know if it has any added fragrance, it's mostly washing soda and that's what it smells like), Woolite and the fabric softeners. BTW we found the "for darks" Woolite has a great residual scent, it's what we use for lightly soiled clothes.