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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9943986 B1

PDFFull Text
Expired
Date of Patent:
Apr. 17, 2018

Filed:

Oct. 24, 2013

Separating device and separating method of material of absorbent article

Applicant:

Unicharm Corporation, Ehime, JP;

Inventors:

Tomoki Hayashi, Kagawa, JP;

Hidetaka Oyama, Kagawa, JP;

Masashi Kagawa, Kagawa, JP;

Assignee:

UNICHARM CORPORATION, Ehime, JP;

Attorney:

Hauptman Ham, LLP

Primary Examiner:

Joseph C Rodriguez

Assistant Examiner:

Kalyanavenkateshware Kumar

Int. Cl.
CPC ...
B03D 3/06 (2006.01); B29B 17/02 (2006.01); B07B 1/20 (2006.01); B07B 4/02 (2006.01); B07B 9/00 (2006.01); B07B 15/00 (2006.01); B07B 1/10 (2006.01); B07B 13/00 (2006.01); B07B 1/00 (2006.01); B07B 4/08 (2006.01); B29L 31/48 (2006.01); B29K 105/26 (2006.01);
U.S. Cl.
CPC ...
B29B 17/02 (2013.01); B07B 1/10 (2013.01); B07B 1/20 (2013.01); B07B 4/02 (2013.01); B07B 9/00 (2013.01); B07B 13/003 (2013.01); B07B 15/00 (2013.01); B07B 1/00 (2013.01); B07B 4/08 (2013.01); B29B 2017/0203 (2013.01); B29K 2105/26 (2013.01); B29L 2031/4878 (2013.01); Y02W 30/622 (2015.05);
Abstract

A separating device that separates particulate superabsorbent polymers and liquid absorbent fibers included in a material of an absorbent article. The device includes: a belt member that moves along a predetermined moving direction while receiving the falling material on an upper surface; and an airflow supply mechanism that supplies an airflow in a direction opposite to the moving direction of the belt member, along the upper surface from a downstream side of the moving direction relative to a position where the material falls. In a case the superabsorbent polymers are sent to the downstream side of the moving direction by movement of the belt member, the airflow rolls the liquid absorbent fibers on the upper surface of the belt member and forms fiber balls while regulating movement of the liquid absorbent fibers to the downstream side of the moving direction, to separate the liquid absorbent fibers and the superabsorbent polymers.

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