linen vs linen paper

linen and linen paper both are nouns.

Word	Noun	Adjective	Verb	Adverb
linen	Yes	No	No	No
linen paper	Yes	No	No	No

As nouns, linen and linen paper are synonyms defined as:

linen and linen paper: a high-quality paper made of linen fibers or with a linen finish

linen (noun)	linen paper (noun)
white goods or clothing made with linen cloth	a high-quality paper made of linen fibers or with a linen finish
a fabric woven with fibers from the flax plant
a high-quality paper made of linen fibers or with a linen finish