METHOD FOR RECOVERING PULP FIBER FROM USED SANITARY PRODUCTS, AND REGENERATED PULP OBTAINED USING SAID METHOD

WIPO Patent Application WO/2014/168179

A1

Pulp fiber is effectively recovered from used sanitary products containing pulp fiber and polymer absorbent. This method includes: a step for immersing the used sanitary products in ozone water and breaking down the polymer absorbent; a step for discharging the ozone water in which the broken-down polymer absorbent is dissolved, and obtaining the residue of the sanitary products from which the polymer absorbent was removed; and a step for stirring the residue of the sanitary products from which the polymer absorbent was removed in water or an aqueous solution containing an antiseptic substance, whereby the residue of the sanitary products is cleaned, and the residue of the sanitary products is broken down into constituent elements.

JP2004124280	PRINTING COATED PAPER BLENDED WITH MAGAZINE WASTE PAPER AND METHOD FOR PRODUCING THE SAME
JPS6059355	[Title of the Invention] A Waste paper disintegration machine of structure which made a rotor counter for 2 sets of equal machinery departments for Maceration, and carried out penetration installation of the one copy of a bottom of a tub in a Waste paper disintegration machine for paper manufacture
WO/1995/012550	DEINKING OF RECYCLED PULP

KONISHI TAKAYOSHI (JP)
HIRAOKA TOSHIO (JP)
YAMAGUCHI MASASHI (JP)
KAMEDA NORITOMO (JP)
ICHIURA HIDEAKI (JP)

PCT/JP2014/060296

October 16, 2014

April 09, 2014

Click for automatic bibliography generation  

UNICHARM CORP (JP)

D21B1/32; B09B3/00; D21C5/02

WO2014007105A1

2014-01-09

JP2000084533A	2000-03-28
JP2003225645A	2003-08-12
JP2002292304A	2002-10-08
JP2009183893A	2009-08-20
JPH069721A	1994-01-18

AOKI, Atsushi et al. (JP)
Aoki 篤 (JP)

View/Download PDF      PDF Help

Previous Patent: LAMINATE

Next Patent: MAGNETIC PROPERTY DETERMINATION DEVICE AND MAGNETIC PROPERTY DETERMINATION METHOD