staple fibre vs natural fiber

staple fibre and natural fiber both are nouns.

Word	Noun	Adjective	Verb	Adverb
staple fibre	Yes	No	No	No
natural fiber	Yes	No	No	No

As nouns, natural fiber is a hypernym of staple fibre; that is, natural fiber is a word with a broader meaning than staple fibre:

staple fibre: a natural fiber (raw cotton, wool, hemp, flax) that can be twisted to form yarn
natural fiber: fiber derived from plants or animals

Other hypernyms of staple fibre include natural fibre.

staple fibre (noun)	natural fiber (noun)
a natural fiber (raw cotton, wool, hemp, flax) that can be twisted to form yarn	fiber derived from plants or animals