公开(公告)号：US11879210B2

公开(公告)日：2024-01-23

申请号：US17530913

申请日：2021-11-19

Applicant: UNICHARM CORPORATION

Inventor： Takeshi Bandou ,  Takayoshi Konishi

IPC: D21C9/153 ,  D21C1/04 ,  D21C1/08 ,  D21B1/16 ,  D21H11/20

CPC classification number: D21C9/153 ,  D21B1/16 ,  D21C1/04 ,  D21C1/08 ,  D21H11/20

Abstract: A method of producing conifer-derived pulp fibers for paper includes a beating step of beating conifer-derived material pulp fibers in the presence of a liquid including water; and an ozone treatment step of treating, with ozone water, the beaten conifer-derived material pulp fibers.

公开(公告)号：US20220074138A1

公开(公告)日：2022-03-10

申请号：US17530913

申请日：2021-11-19

Applicant: UNICHARM CORPORATION

Inventor： Takeshi Bandou ,  Takayoshi Konishi

IPC: D21B1/16 ,  D21C1/08 ,  D21C1/04 ,  D21H11/20

Abstract: A method of producing conifer-derived pulp fibers for paper includes a beating step of beating conifer-derived material pulp fibers in the presence of a liquid including water; and an ozone treatment step of treating, with ozone water, the beaten conifer-derived material pulp fibers.