Title:
使用済み吸収性物品からパルプ繊維を回収する方法及びシステム
Document Type and Number:
Japanese Patent JP7446384
Kind Code:
B2
Abstract:
Provided is a method that, when pulp fibers are recovered from used absorbent articles that have been put into collection bags, makes it possible to safely and sanitarily crush the used absorbent articles while suppressing costs. A method for recovering pulp fibers from used absorbent articles, the method comprising: a crushing step (S12) in which collection bags (A) in which used absorbent articles have been sealed are put into a container (65), the collection bags in the container are transferred to a crushing device (12) that communicates with the container, and, bag by bag, the crushing device crushes the used absorbent articles in the collections bags in a deactivating aqueous solution; and a separation step (S13) in which the pulp fibers, a highly water-absorbent polymer, and the deactivating aqueous solution are separated from the crushed product and deactivating aqueous solution obtained in the crushing step.
More Like This:
Inventors:
Takayoshi Konishi
Toshio Hiraoka
Takashi Kato
Noritomo Kurita
Toshio Hiraoka
Takashi Kato
Noritomo Kurita
Application Number:
JP2022172143A
Publication Date:
March 08, 2024
Filing Date:
October 27, 2022
Export Citation:
Assignee:
Unicharm Corporation
International Classes:
D21C5/02; B02C18/00; B02C23/18; B09B3/30; B09B3/70; D21B1/16
Domestic Patent References:
| JP2019085686A | ||||
| JP3139358U | ||||
| JP3096152U | ||||
| JP2006007111A | ||||
| JP2001310178A | ||||
| JP2016514043A | ||||
| JP2018084470A |
Foreign References:
| WO2015190140A1 | ||||
| CN106861853A | ||||
| CN103418605A | ||||
| CN106115026A |
Attorney, Agent or Firm:
Atsushi Aoki
Shinji Mihashi
Hiroyuki Onoda
Takenori Okuno
Kenji Fujimoto
Shinji Mihashi
Hiroyuki Onoda
Takenori Okuno
Kenji Fujimoto
Previous Patent: Electroluminescent display device with repair structure
Next Patent: How to output digital ink
Next Patent: How to output digital ink