CPC D21C 5/022 (2013.01) [A61L 2/183 (2013.01); A61L 11/00 (2013.01); B09B 3/0075 (2013.01); B09B 3/80 (2022.01); B29B 17/02 (2013.01); D21H 11/14 (2013.01); B29B 2017/0293 (2013.01); B29L 2031/4878 (2013.01)] | 3 Claims |
1. Pulp fibers for cellulose nanofiberization which derive from used hygiene products that include pulp fibers and super absorbent polymers, wherein the pulp fibers for cellulose nanofiberization have a lignin content ratio of 0.1 mass % or less and a water contact angle of 20° or less.
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