hatband vs banding

hatband and banding both are nouns.

Word	Noun	Adjective	Verb	Adverb
hatband	Yes	No	No	No
banding	Yes	No	No	No

As nouns, banding is a hypernym of hatband; that is, banding is a word with a broader meaning than hatband:

hatband: a band around the crown of a hat just above the brim
banding: an adornment consisting of a strip of a contrasting color or material

Other hypernyms of hatband include band, stripe.

hatband (noun)	banding (noun)
a band around the crown of a hat just above the brim	an adornment consisting of a strip of a contrasting color or material
	a stripe or stripes of contrasting color