公开(公告)号：US20210180254A1

公开(公告)日：2021-06-17

申请号：US16760354

申请日：2018-10-05

申请人： NIPPON PAPER INDUSTRIES CO., LTD.

发明人： Masatoshi OISHI ,  Koji NINAGAWA ,  Toru NAKATANI ,  Dai NAGAHARA ,  Shisei GOTO

IPC分类号： D21H17/00 ,  D21H21/16 ,  D21H21/28 ,  D21H17/67 ,  D21H17/66 ,  D21H11/00 ,  D21H23/04 ,  D21H19/24 ,  D01F9/08

摘要： The present invention provides a titanium oxide composite fiber in which titanium oxide is efficiently fixed in fiber, and a method for producing the titanium oxide composite fiber. A composite fiber of the present invention includes: fiber; titanium oxide; and an inorganic binder, at least part of the inorganic binder containing at least one inorganic compound selected from (i) an inorganic salt containing at least one of: at least one metal selected from magnesium, barium, aluminum, copper, iron, and zinc; and silicic acid and (ii) metal particles containing the at least one metal, the titanium oxide being firmly fixed to the fiber via the inorganic binder.

公开(公告)号：US20200024804A1

公开(公告)日：2020-01-23

申请号：US16497868

申请日：2018-03-19

申请人： NIPPON PAPER INDUSTRIES CO., LTD.

发明人： Ayaka HASEGAWA ,  Moe FUKUOKA ,  Masatoshi OISHI ,  Koji NINAGAWA ,  Toru NAKATANI ,  Shisei GOTO

IPC分类号： D21H17/67 ,  D21H11/04 ,  D21H21/06 ,  D21H27/30 ,  D21F9/02

摘要： The present invention provides a method for reducing web break caused in preparing, by continuous paper making, a fiber sheet containing a high content of functional inorganic substance. The composite fiber sheet manufacturing method includes: generating composite fibers composed of cellulosic fibers and inorganic particles by synthesizing the inorganic particles in slurry containing the cellulosic fibers; and continuously generating a sheet by supplying composite-fiber-containing slurry including the composite fibers to a continuous paper machine. In the composite fiber generating step, at least one of (i) slurry containing cellulosic fibers having a length of 1.2 mm to 2.0 mm in an amount of 16% or more in terms of length-weighted fiber length distribution (%) and (ii) slurry containing cellulosic fibers having a length of 1.2 mm to 3.2 mm in an amount of 30% or more in terms of length-weighted fiber length distribution (%) is used.