Title:
リサイクルパルプ繊維の製造方法、過酸の、高吸水性ポリマーの不活化及び分解のための使用、並びに過酸を含む、高吸水性ポリマーの不活化及び分解剤
Document Type and Number:
Japanese Patent JP6847028
Kind Code:
B2
Abstract:
The purpose of the present invention is to provide a recycled pulp fiber manufacturing method with which it is possible to easily inactivate and degrade a high water-absorption polymer using a single chemical. This method is for manufacturing recycled pulp fibers from used sanitary goods containing pulp fibers and high water-absorption polymer, and is characterized by comprising: a high water-absorption polymer inactivation and degradation step (S1) for immersing a sanitary goods constituent material containing the pulp fibers and an acid radical-containing high water-absorption polymer in a peracid-containing aqueous solution so as to inactivate and degrade the high water-absorption polymer; and a recycled pulp fiber recovery step (S2) for recovering the recycled pulp fibers from the peracid-containing aqueous solution that has undergone the high water-absorption polymer inactivation and degradation step (S1).
Inventors:
Takayoshi Konishi
Application Number:
JP2017244095A
Publication Date:
March 24, 2021
Filing Date:
December 20, 2017
Export Citation:
Assignee:
UNI-CHARM CO.,LTD.
International Classes:
D21C5/02; B09B3/00; B09B5/00; C08J11/16; C08J11/26; D21B1/32
Domestic Patent References:
| JP4317785A | ||||
| JP2003321574A | ||||
| JP2001316519A | ||||
| JP6313008A | ||||
| JP9249711A |
Attorney, Agent or Firm:
Atsushi Aoki
Shinji Mitsuhashi
Hiroyuki Onoda
Okuno Takenori
Kenji Fujimoto
Shinji Mitsuhashi
Hiroyuki Onoda
Okuno Takenori
Kenji Fujimoto