Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (IN201827021005) METHOD FOR RECOVERING PULP FIBER FROM USED HYGIENE PRODUCT

Office : India
Application Number: 201827021005 Application Date: 05.06.2018
Publication Number: 201827021005 Publication Date: 22.06.2018
Publication Kind : A
Prior PCT appl.: Application Number:PCTJP2016081491 ; Publication Number: Click to see the data
IPC:
B09B 3/00A
[IPC code unknown for ERROR IPC Code incorrect: invalid subgroup (0=>999999)!]
Applicants: UNICHARM CORPORATION
Inventors: KONISHI, Takayoshi
HIRAOKA, Toshio
KAMEDA, Noritomo
ICHIURA, Hideaki
Priority Data: 2015-255231 25.12.2015 JP
Title: (EN) METHOD FOR RECOVERING PULP FIBER FROM USED HYGIENE PRODUCT
Abstract:
(EN) Provided is a method for efficiently recovering pulp fiber from used hygiene products that include pulp fiber and a polymer absorbent. This method is characterized by including a step for introducing the used hygiene product into a treatment tank in which an aqueous solution with ozone dissolved therein has been introduced and a step for treating the used hygiene product while infusing water into the treatment tank at a first flow rate extracting the aqueous solution from the treatment tank at a second flow rate and introducing a gas containing ozone into the aqueous solution in the treatment tank thereby decomposing the polymer absorbent lowering the molecular weight thereof and making the same dissolvable.
Also published as:
CN108430657EP3378576ID2018/10016US20190000698WO/2017/110234