UNFOLDING TYPE ABSORBENT ARTICLE AND PROCESS FOR PRODUCING BACK SHEET FOR ABSORBENT ARTICLE

WIPO Patent Application WO/2007/114362

A1

[PROBLEMS] To diminish the breakage of a back sheet caused by the application/stripping of a fixing tape. [MEANS FOR SOLVING PROBLEMS] A back sheet (12) obtained by superposing a hydrophobic sheet (12A) made of a hydrophobic resin and nonwoven fabric sheets (12B and 12C) and press-bonding the sheets is used. In forming the sheet (12), the hydrophobic sheet (12A) and the nonwoven fabric sheets (12B and 12C) are superposed together with a hot-melt adhesive interposed between these, and the sheets are then press-bonded with heating. The bond strength between the hydrophobic sheet (12A) and the nonwoven fabric sheets (12B and 12C) is higher than the peel strength between the nonwoven fabric sheets (12B and 12C) and the male material (Y) applied thereto. The sheet (12) has a value determined by a KES flexural test of 0.05-0.50 g·cm2/cm.

UTSUNOMIYA TAKESHI (JP)
FUKAE AKINORI (JP)
TORIGOSHI KEIJI (JP)

PCT/JP2007/057182

October 11, 2007

March 30, 2007

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DAIO SEISHI KK (JP)
UTSUNOMIYA TAKESHI (JP)
FUKAE AKINORI (JP)
TORIGOSHI KEIJI (JP)

A61F13/49; A61F13/56

JPH09173382A	1997-07-08
JP2004330692A	2004-11-25
JP2006075334A	2006-03-23
JP2002209936A	2002-07-30
JP2001046426A	2001-02-20
JPH03241051A	1991-10-28
JPH09253130A	1997-09-30

NAGAI, Yoshihisa (3-2 Kajicho 2-chome, Chiyoda-k, Tokyo 44, JP)

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