WIPO publishes Unicharm patent for 'open-type disposable diaper'

ALEXANDRIA, Virginia , April 18, 2014 () – Publication No. WO/2014/057974 was published on April 17.

Title of the invention: "OPEN-TYPE DISPOSABLE DIAPER."


Inventors: Kenichi Sasayama (JP) and Kunihiko Katsuragawa (JP).

According to the abstract* posted by the World Intellectual Property Organization: "The present invention provides an open-type disposable diaper which facilitates the operation of putting on and removing the diaper from a wearer in a standing position and in which a front waist area stably fastens during the operation of putting on the diaper as well as during wear. At least one of belt extending portions (26) of an elastic waist belt (16) comprises a first elastic area (41) which extends outwards in a lateral direction (X) from a side edge of a liquid-absorbing structure (14), a second elastic area (42) which is spaced from and opposes the first elastic area (41) in the lateral direction, and a non-elastic area (40) which is located between the first and second elastic areas. A second fastening means (18) is composed of a first fastening portion (74) which is located on a side facing the skin of a front edge area (51) of a chassis (15) and a second fastening portion (75) which is located on a side not facing the skin of the non-elastic area."

The patent was filed on Oct. 9, 2013 under Application No. PCT/JP2013/077466.

*For further information, including images, charts and tables, please visit: http://www.wipo.int/patentscope/search/en/detail.jsf?docId=WO2014057974

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