Title:
使用済み衛生用品からパルプ繊維を回収する方法およびその方法により得られる再生パルプ
Document Type and Number:
Japanese Patent JP6646924
Kind Code:
B2
Abstract:
A method of treating polymer absorbent of a used sanitary product including pulp fiber and the polymer absorbent, comprising the steps of making the polymer absorbent imbibe water in an amount equal to a weight of the polymer absorbent or more, making the polymer absorbent in a moisture-containing state come in contact with an ozone-containing gas, and decomposing, lowering molecularization, and solubilizing at least a portion of the polymer absorbent by the ozone-containing gas.
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Inventors:
Takayoshi Konishi
Toshio Hiraoka
Kameda Noriho
Hideaki Ichiura
Hiroko Nakaoka
Toshio Hiraoka
Kameda Noriho
Hideaki Ichiura
Hiroko Nakaoka
Application Number:
JP2014193074A
Publication Date:
February 14, 2020
Filing Date:
September 22, 2014
Export Citation:
Assignee:
UNI-CHARM CO.,LTD.
International Classes:
B09B3/00; A61L2/18; A61L11/00; B29B17/02; B29B17/04; D21B1/32; D21C5/02
Domestic Patent References:
JP4317785A | ||||
JP6009721A | ||||
JP2009073198A | ||||
JP2000084533A | ||||
JP2012067406A | ||||
JP6184970A | ||||
JP8013381A |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Atsushi Ebiya
Satoshi Deno
Hiroyuki Onoda
Daisuke Yoshisako
Okuno Takenori
Takashi Ishida
Tetsuji Koga
Atsushi Ebiya
Satoshi Deno
Hiroyuki Onoda
Daisuke Yoshisako
Okuno Takenori