Assertion: wood pulp | /r/HasProperty | pure cellulose fibers
Facets:
value: almost
type: DEGREE
value: by treating wood chips
type: MANNER
Source sentences:
text: The sulfite process produces wood pulp that is almost pure cellulose fibers by treating wood chips with solutions of sulfite and bisulfite ions.
text: The sulfite process produces wood pulp which is almost pure cellulose fibers by using various salts of sulfurous acid to extract the lignin from wood chips in large pressure vessels called digesters.