Fabric smells

I don’t quite know how to explain this well, so please bear with me.

I was telling my friend about new pyjamas I ordered and how there was this new fabric smell that hadn’t washed off in laundry. I can’t put my finger on what this smell is? Is it the smell of fabric itself because it was sealed in a plastic bag it came in? Or something that it was treated with during manufacturing process?

Do you notice the smell of fabric? Not the smell of detergent/perfume/BO or anything else, but the smell of fabric itself.

Sorry if this doesn’t make any sense.